ГРАНУЛЫ ПЕНОПОЛИСТИРОЛА С УПРОЧНЯЮЩЕЙ ОБОЛОЧКОЙ И СПОСОБ ИХ ИЗГОТОВЛЕНИЯ

Изобретение относится к литейно-металлургическому производству, в частности к получению пористых литых заготовок (отливок, слитков) из металлов и сплавов с невысокой температурой плавления и легкоплавких металлов и сплавов, используемых для изготовления деталей в машиностроении и других отраслях промышленности. Гранулы пенополистирола с упрочняющей оболочкой состоят из поверхностной пленки, содержащей внутри ячейки, наполненные изопентаном и воздухом, покрыты внешней функциональной оболочкой, содержащей один, или два, или три слоя. Каждый слой содержит связующее состава, мас.%: жидкое стекло - 50, вода - 49, поверхностно-активное вещество - 1, и добавку дисперсного металлического порошка, выбранного из алюминиевого, магниевого, цинкового, свинцового порошка, или порошка огнеупорного материала, выбранного из глинозема, магнезита, кремнезема с размерами частиц не более 100 мкм. Описан также способ изготовления гранул пенополистирола с упрочняющей оболочкой, заключающийся в том, что покрытие ...

УСТАНОВКА И СПОСОБ СУШКИ И ТВЕРДОФАЗНОЙ ПОЛИКОНДЕНСАЦИИ ПОЛИМЕРНОГО МАТЕРИАЛА

Изобретение относится к установке для сушки и твердофазной поликонденсации влагосодержащего полимерного материала в гранулированной форме. Техническим результатом является повышение равномерности сушки полимерного материала в гранулированной форме и его твердофазную поликонденсацию за очень короткое время и с высокой тепловой эффективностью. Технический результат достигается установкой для сушки и твердофазной поликонденсации влагосодержащего полимерного материала в гранулированной форме, которая содержит трубопровод, подающий материал, подлежащий обработке, в продольном направлении, зону обработки для обработки полимерного материала, расположенную вдоль трубопровода, нагнетающие устройства для нагнетания инертного газа в трубопровод и излучающие устройства для излучения переменного электромагнитного поля радиочастотного диапазона, для тепловой обработки полимерного материала, для его сушки и обновления. Причем излучающие устройства содержат совокупность аппликаторов, расположенных в соответствии ...

СПОСОБ И СИСТЕМА ПОЛУЧЕНИЯ РЕТ-ГРАНУЛ

Изобретение относится к способу получения полиэтилентерефталатных (PET) гранул, подходящих для дальнейшей переработки для получения упаковочной пленки и бутылок, включающему стадии: a) получения расплава PET или расплава сополиэфирного PET в поточной системе непрерывной полимеризации или путем переэтерификации диметилтерефталата (DMT) с этиленгликолем (EG), или путем этерификации терефталевой кислоты (РТА) с этиленгликолем, b) перемещения расплава, предпочтительно посредством трубопровода, для дальнейшей обработки на стадии с), c) гранулирования расплава с охлаждением с образованием неочищенных гранул, причем частичная кристаллизация полимера происходит с высвобождением части теплоты кристаллизации полимера (скрытой теплоты кристаллизации), d) доочистки неочищенных гранул для регулирования показателей качества полимера, требуемых для дальнейшей переработки, в частности характеристической вязкости, содержания ацетальдегида и влаги, отличающемуся тем, что доочистка происходит в множестве ...

СПОСОБ ПОЛУЧЕНИЯ ГРАНУЛ СЛОЖНОГО ПОЛИЭФИРА С НИЗКОЙ СТЕПЕНЬЮ ГИДРОЛИЗА ИЗ ВЫСОКОВЯЗКИХ РАСПЛАВОВ СЛОЖНОГО ПОЛИЭФИРА И УСТРОЙСТВО ДЛЯ ПОЛУЧЕНИЯ ГРАНУЛ СЛОЖНОГО ПОЛИЭФИРА

Изобретение относится к способу прямого получения гранулята полиэтилентерефталата с низкой степенью гидролиза из высоковязкого расплава полиэтилентерефталата и устройство для прямого получения гранулята полиэтилентерефталата с низкой степенью гидролиза. Способ прямого получения гранулята полиэтилентерефталата со степенью полимеризации СП от 132 до 165, при котором расплав после осуществления способа разрезания в горячем состоянии подвергают предварительной сушке и сушке/дегазации. Стадию разрезания в способе разрезания в горячем состоянии осуществляют при температурах воды от 70 до 95°С и при поддержании соотношения жидкости к твердому веществу - соотношения воды к гранулам/грануляту от 8:1 до 12:1, причем жидкость полностью удерживают до поступления в предварительную сушилку, а циркулирующую воду в предварительной сушилке отделяют в течение менее 10 с. Кроме того, изобретение относится к грануляту полиэтилентерефталата, полученному указанным способом, который имеет степень поликонденсации ...

СПОСОБ КРИСТАЛЛИЗАЦИИ КРИСТАЛЛИЗУЕМЫХ ПОЛИМЕРОВ С ВЫСОКОЙ СКЛОННОСТЬЮ К СКЛЕИВАНИЮ

Изобретение относится к способу получения частично кристаллизованного полимера. Способ включает приготовление расплава кристаллизуемого полимера, формование частиц и затвердевание расплава полимера. При этом формование частиц может проводиться до или после затвердевания. Затем осуществляют охлаждение частиц, обработку частиц для снижения их склонности к склеиванию и их кристаллизацию. Обработку частиц проводят между стадией их охлаждения и стадией кристаллизации путем встряхивания в течение времени от более 1 минуты до менее 30 минут при температуре Т1, лежащей ниже температуры перехода полимера в стеклообразное состояние плюс 10°C, т.е. при T1 Подробнее

ТЕХНОЛОГИЧЕСКАЯ ЛИНИЯ ИЗГОТОВЛЕНИЯ ПЕНОПОЛИСТИРОЛЬНОГО ЗАПОЛНИТЕЛЯ ДЛЯ БЕТОННОЙ СМЕСИ

Технологическая линия изготовления пенополистирольного заполнителя для бетонной смеси, включающая бункер для хранения сырьевых материалов, вспениватели гранул пенополистирола, парогенератор, бункеры вылежки и хранения готового заполнителя, отличающаяся тем, что линия дополнительно оборудована термостатом пенополистирольного наполнителя, выполненным в виде 2-камерной горизонтальной цилиндрической емкости, содержащей трубчатый многосекционный ворошитель заполнителя, смонтированный вдоль оси емкости на всю длину ее рабочего пространства, при этом нижняя часть емкости содержит воздуховод для сушки и термостатирования заполнителя, а верхняя часть емкости снабжена вентиляционной системой удаления воздушного потока.

Способ получения горячего клея

Изобретение может быть использовано при склеивании коробов из картона. Способ получения горячего клея включает смешение компонентов клеевой композиции в реакторе, экструдирование смеси в экструдере с получением экструдатов горячего клея. Затем проводят загрузку в барабан экструдатов горячего клея и твердых частиц, которые прилипают к экструдатам снаружи и образуют антиоксидантную оболочку поверх экструдатов горячего клея. Далее гранулы горячего клея фасуют в мешки и/или короба. В качестве твердых частиц, образующих антиоксидантную пленку, используют вещество с температурой плавления ниже температуры плавления клеевой композиции в количестве 0,1-3% от веса гранул горячего клея. Изобретение позволяет снизить контакт расплава клеевой композиции с кислородом и сократить образование нагара при использовании горячего клея без влияния на его клеящие свойства. 3 з.п. ф-лы.

СПОСОБ ПОЛУЧЕНИЯ ГРАНУЛ СЛОЖНОГО ПОЛИЭФИРА С НИЗКОЙ СТЕПЕНЬЮ ГИДРОЛИЗА ИЗ ВЫСОКОВЯЗКИХ РАСПЛАВОВ СЛОЖНОГО ПОЛИЭФИРА И УСТРОЙСТВО ДЛЯ ПОЛУЧЕНИЯ ГРАНУЛ СЛОЖНОГО ПОЛИЭФИРА

... 1. Способ прямого получения гранулята сложного полиэфира с низкой степенью гидролиза из высоковязкого расплава сложного полиэфира со степенью полимеризации (СП) от 132 до 165, при котором расплав после осуществления способа разрезания в горячем состоянии подвергают предварительной сушке и сушке/дегазации, отличающийся тем, что ! стадию разрезания в способе разрезания в горячем состоянии осуществляют при температурах воды от 70 до 95°С и при поддержании соотношения жидкости к твердому веществу (соотношения воды к гранулам/грануляту) от 8:1 до 12:1, причем жидкость полностью удерживают до поступления в предварительную сушилку, а циркулирующую воду в предварительной сушилке отделяют в течение менее 10 с. ! 2. Способ по п.1, отличающийся тем, что 99% циркулирующей воды отделяют в предварительной сушилке, при этом в качестве предварительной сушилки предпочтительно применяют перемешивающую центрифугу, корпус которой выполнен в виде расширяющегося от основания вверх конуса или цилиндрических ступеней ...

УСТАНОВКА И СПОСОБ СУШКИ И ТВЕРДОФАЗНОЙ ПОЛИКОНДЕНСАЦИИ ПОЛИМЕРНОГО МАТЕРИАЛА

СПОСОБ ПОЛУЧЕНИЯ ЧАСТИЦ РЕЗИНЫ С ПОКРЫТИЕМ, ЧАСТИЦЫ РЕЗИНЫ С ПОКРЫТИЕМ И НЕ СОДЕРЖАЩИЙ РАСТВОРИТЕЛЯ СОСТАВ ДЛЯ ПОКРЫТИЯ

... 1. Способ покрытия резиновых частиц, отличающийся тем, что смесь А из алифатического ангидрида, MSA-модифицированного полибутадиена вместе со смесью В из циклоалифатической эпоксидной смолы, силиконового масла, смачивателя и диспергатора, антиоксиданта, наполнителей, красителей, пигментов и катализатор смешивают в барабанном смесителе с резиновыми частицами и отверждают при температуре от 80 до 120°С.2. Способ по п.1, отличающийся тем, что способ осуществляют в реакторе с псевдоожиженным слоем.3. Способ по п.1, отличающийся тем, что способ осуществляют в смесителе для твердых веществ.4. Резиновые частицы с покрытием, полученные способом по пп.1-3.5. Применение резиновых частиц с покрытием по п.4 для строительства спортивных площадок.6. Применение резиновых частиц с покрытием по п.4 в качестве сухой насыпки для искусственных грунтов.7. Искусственный газон, отличающийся тем, что он заполнен резиновыми частицами с покрытием.8. Применение резиновых частиц с покрытием по п.4 в качестве элемента ...

Способ получения полиамида-6

Изобретение относится к области получения полиамида-6. Предложен способ получения полиамида-6 путём получения форполимера при двухступенчатой гидролитической полимеризации капролактама в присутствии инициатора – воды в количестве 1,0-1,3 масс.%, с последующим получением гранулята полиамида-6 из расплава форполимера, твердофазным дополиамидированием гранулята полиамида-6 в потоке инертного газа – азота при температуре 175-180°C и непрерывной совмещенной сушки-демономеризации в твёрдой фазе полученного равновесного гранулята полиамида-6 в потоке инертного газа – азота при температуре 150-160°C, при этом на первой ступени гидролитической полимеризации полимеризацию осуществляют при температуре 210-220°C в течение 9-10 часов, а на второй ступени гидролитической полимеризации полимеризацию осуществляют при температуре 210-220°C в течение 9-14 часов. Технический результат – увеличение выхода и относительной вязкости высокомолекулярного полиамида-6. 1 табл., 3 пр.

Линия для изготовления гранул пенополистирола

Изобретение относится к оборудованию для вспенивания гранул полистирола . Цель изобретения - расширение технологических возможностей, повьше- ние производительности и качества гранул. Для этого линия содержит емкость 1 с исходными гранулами, двухкамерное устройство для вспенивания гранул, камеру стабилизации 8, устройство перегрузки 16, струйный насос 17, пневмотрубопровод 9, устройство . выдержки гранул в виде бункеров 12, 13, воздухоотделитель 14, средство аэрирования 26, датчики уровня 35, 36, 37, 38, 39, 40, систему управления 41. Сьфье из емкости 1 подают в камеру 4, затем горячие гранулы через камеру 6 перемещаются в камеры стабилизации 8, откуда устройством пере- грузки 16 после выдержки подсушенные и охлажденные гранулы засьтаются в струйный насос 17 и подаются по пневмотрубопроводу 9 в бункер 12 чег рез воздухоотделитель 14 и затем в средство аэрирования 26. Линия работает в режимах однократного, двукратного и более вспенивания гранул полистирола посредством датчиков уровня , которые ...

Способ получения гранул полимерных материалов с покрытием

Изобретение относится к переработке наполненных полимерных материалов и может быть использовано в области получения гранулированных термопластов. Изобретение позволяет увеличить срок службы оборудования, уменьшить энергозатраты, увеличить производительность процесса переработки гранул за счет совмещения стадий нанесения покрытия на поверхность прутков, полученных экструзионным формованием с процессом охлаждения при прохождении их через ванну с водным раствором, содержащим полиоксиэтилен, поверхностноактивное вещество на основе полиэтиленгликолевых эфиров синтетических первичных спиртов фракции C10-C18и дисульфид молибдена или графит в массовом соотношении (4-6):(0,005-0,015):(0,4-0,6) соответственно с последующим высушиванием покрытия. Процесс охлаждения при этом ведут при 60-70°С. 2 табл.

Vorrichtung fuer die Entstaubung von Granulaten

Verfahren zur Herstellung geformter Gegenstände aus einer voll-aromatischen Polyamidharz-Zusammensetzung.

VERFAHREN ZUM VERHINDERN DER BEI DER HERSTELLUNG UND FOERDERUNG VON WEISSPIGMENTIERTEN, RIESELFAEHIGEN PULVERMISCHUNGEN AUF BASIS POLYVINYLCHLORID ENTHALTENDER POLYMERER AUFTRETENDEN VERGRAUUNG

Vorrichtung zum Kristallisieren von Kunststoffgranulat

Vorrichtung zum thermischen Behandeln von Kunststoffgranulat, wie z.B. Polyester mit dem Ziel der Kristallisation Dadurch gekennzeichnet Das ein Drehrohr zum Kristallisieren von PET Granulat in horizontaler Lage verwendet wird.

KÜNSTLICHE AGGREGATE AUS POLYETHYLENTEREPHTHALAT ZUR HERSTELLUNG VON LEICHTBETON

VERFAHREN ZUR STRAHLENBEHANDLUNG VON ETHYLENPOLYMEREN

Water-silica coolant systems for thermoplastics

Cooling of softened thermoplastic material in the manufacture of granules, sheet, mouldings or semi-finished products, is achieved by contact with a mixture of water and hydrophobic silica particles. Water droplets are not left on the plastic as occurs with water cooling and the cooled articles do not stick together. Shorter cooling times are required than for air cooling and it is easier to maintain dimensional tolerances. The transparency is also improved since the fast cooling allows higher amorphous contents to be obtained. Specifically the coolant contains 80-95% water and 20-5% SiO2, and especially 90% water + 10% SiO2. A layer less than 1u thick is retained by the plastic and this permits printing to be done without previous oxidation of the surface. Optionally a dyestuff may be included in the coolant.

VERFAHREN ZUR VERGRÖSSERUNG DER OBERFLÄCHE VON PARTIKELN

Stützring für ein Sieb eines Pellettrockners

VERFAHREN ZUM WIRBELSCHICHTSPRUEHGRANULIEREN

VERFAHREN ZUR HERSTELLUNG VON OXYMETHYLENPOLYMEREN IN KOERNIGER FORM

Blasgeformter Behälter und Herstellungsvefahren

CURABLE GRANULES OF A HOMO- OR COPOLYMER OF AN OLEFINIC HYDROCARBON

... 1,219,292. Extruding cross-linkable polyoleflns. DAINICHI-NIPPON CABLES Ltd. 21 Oct., 1968 [20 Oct., 1967], No. 49781/68. Heading B5A. [Also in Division C3] Extruded articles, e.g. a conductor coating, of a cross-linked homo- or copolymer of an olefinic hydrocarbon are produced by stirring granules of the polymer of average grain size no less than 0À5 mm. in their longest dimension with at least one cross-linking agent under conditions of high speed stirring to locally melt the surfaces of the granules without causing cohesion between the granules and cause the cross-linking agent to penetrate into the granules such that the amount of cross-linking agent remaining on the surfaces of the granules is no more than 0À5 parts by weight per 100 parts by weight of the polymer, supplying the resulting curable granules to an extruder by pneumatic carrier, extruding the granules and heating the resulting extruded articles so as to effect cross-linking. High speed stirring means that the peripheral ...

A deflecting separator with a displacement member

A deflecting separator, e.g. for separating angels' hair and dust from pneumatically conveyed grain, comprises a cone-tipped (3a) displacement member (3) enclosed within a first pipe (2); and a second pipe (6) enclosing the first pipe. The three main components are annularly spaced from one another, and are arranged for labryrinthine flow of the granular material. The deflecting member is of star-shaped profile in cross-section, e.g. by providing it with ribs (4). The loose material to be separated passes into the top (1) of the pipe (2). A separating gas is supplied at a connection (9) located on a collector (8) for separated grain, and it conveys the separated dust and angels' hair out through a connection (10) at the top of pipe (6). ...

A method of manufacturing foamed polystyrene balls

A method of continuously manufacturing foamed polystyrene balls includes heating two flows of molten vinyl aromatic polymer 15, 16 to within 25 degrees of an expanding agentâ s critical temperature. The expanding agent is then added to one at a supercritical pressure and the flows are mixed. This mixture can then be extruded through holes in a cylindrical die 37 which are provided with knives to separate the extrusion into granules. A nozzle 13 directs a liquid jet at the die and an inlet 14 feeding a gas to the cutting chamber prevents it flooding. This process ideally produces almost spherical granules having a density less than 50g/l with most of the cavities being unlinked.

Improved polyoxymethylene products

Particulate polyoxymethylene fibres of length 50 microns or less and having a diameter ratio greater than 10 to 1 are formed from polyoxymethylenes prepared by irradiation. The polyoxymethylene may be prepared by irradiation of trioxane below 25 DEG C. in the solid state. The irradiation-produced polyoxymethylene may be suspended in particulate form in a gas stream and further gas injected at high velocity so as to cause turbulence and break down the particles, the process being operated at 5 DEG to 93 DEG C. The process may be carried out in a fluid energy mill or jet pulverizer apparatus using air as the suspending medium and a plurality of air jets to create turbulence. Specification 983,075 and U.S.A. Specification 3,150,834 are referred to.

Subjecting solid objects to conditioning gas with whriling motion

... 1,142,762. Drying and cooling apparatus. R. E. FUTER. 2 Aug., 1966 [13 Sept., 1965], No. 34547/66. Headings F4G and F4U. [Also in Division A2] In apparatus for conditioning, e.g. chilling, freezing, drying or humidifying, solid products in the form of particles, e.g. grain, berries, nuts, sawdust, cement or plastic nibs or powder, the particles are fed into a chamber and whirled in a stream of a conditioning gas, such as air, nitrogen, carbon dioxide or methane, which is fed into the chamber so as to whirl in close proximity to its inner wall. In the apparatus shown in Figs. 1 and 3, a plurality of cylindrical trough-like chambers 14 having end-walls 15 and 16, open mouths 17 preferably with lips 34, and bias weights 36, are pivotally supported between two endless chains 18 travelling around driven sprockets 32 and idler sprockets 31. During the upper run of the chambers 14, the weights 36 keep the mouths 17 uppermost. At the end of said upper run, a curved guide 37 swings the chambers ...

Method and apparatus for coating granules

POLYMER PROCESSING

Improvements in or relating to pelleted polychloroprene

Uniform, free-flowing pellets of plastic polychloroprene coated with a powder which does not react with the polychloroprene under normal atmospheric conditions are prepared by suspending drops of an aqueous dispersion of the polychloroprene in a water-immiscible organic liquid more volatile than water and in which the polychloroprene is insoluble, at a temperature below - 20 DEG C. until the drops are frozen and the polychloroprene coagulated, the pellets are separated and coated while still frozen with 5 to 20 per cent of their dry weight of the powder, and water and any adhering organic liquid are removed by vaporization by warming. Suitable organic liquids are aliphatic hydrocarbons and fluorinated aliphatic hydrocarbons and fluorinated aliphatic hydrocarbons such as petroleum ether. The drops may be formed by known means before the latex enters the liquid or may be formed by directing a stream of latex at the surface of the cooled liquid, in which case the size of the drops and hence ...

HEAT-TREATING POLYETHYLENE TEREPHTHALATE

POROUS LAMINATED PELLETS OF WASTE POLYESTER FILM AND PROCESSES FOR DRYING AND POLYMERIZATION

... 1515438 Pelletizing waste polyethylene terephthalate film E I DU PONT DE NEMOURS & CO 14 May 1976 [15 May 1975 12 April 1976] 20003/76 Heading B5A [Also in Division C3] To relcaim waste polyethylene terephthalate or similar polyester film, the film is comminuted and granulated to form laminated binderless pellets of interlocked flakes of the film which can be subjected to drying and solid phase polymerization under vacuum or in an inert gas to increase the intrinsic viscosity to a suitable level for re-processing. The film is shredded into flakes which are fed into a roller and ring pelletizer having a knife to cut the compacted flakes into pellets. The flakes are crimped together at the edges and slightly creped. Slight fusion of the edges may also occur due to friction during passage through the die holes.

VERFAHREN ZUM VERRINGERN DES MONOMERGEHALTES VON ACRYLNITRILPOLYMEREN BZW. METHACRYLNITRILPOLY- MEREN

DEVICE AND PROCEDURE FOR THE THERMAL SUBSEQUENT TREATMENT OF POLYMERE PLASTIC MATERIAL IN GRANULATES FORM

PROCEDURE FOR THE PRODUCTION OF HIGH-CONDENSED POLYESTER GRANULATES

DEVICE FOR DRAINING AND DRYING SOLIDS, IN PARTICULAR UNDERWATERGRANULATED PLASTICS

PROCEDURE AND DEVICE FOR THE DECREASE OF THE ACETALDEHYDE CONTENT OF POLYESTER GRANULATES

DRY MIXTURE WITH OXYGEN DISTANCE CHARACTERISTICS, AND THE USE FOR EINLAGIGE PACKING ARTICLES

PROCEDURE FOR THE CONTINUOUS PRODUCTION OF FOAM BEADS.

PROCEDURE FOR THE PRODUCTION OF FORMED ARTICLES FROM CONDUCTIVE THERMOPLASTICS AND THEIR USE IN THE ELECTRICAL INDUSTRY.

DISCHARGE DEVICE FUER OF GRANULATES.

PP-COATED PARTICLES AND MANUFACTURING PROCESS.

WAESSRIGE PARTING AGENTS.

PROCEDURE FOR PREVENTING WITH OF THE PRODUCTION AND PROMOTION OF POINT-PIGMENTED, RIESELFAEHIGEN POWDER SUBSTANCES ON BASIS POLYVINYL CHLORIDE OF ABSTENTIONS OF POLYMERE ONES OCCURRENCE HAVING A HORROR.

PROCEDURE FOR THE INCREASE OF THE FUSION POINT AND THE FUSION ENTHALPY OF PP BY TREATMENT WITH WATER

MATERIAL AND PROCEDURE FOR THE PRODUCTION OF PLASTIC PARTS

RIESELFAEHIGE PARTICLES FROM STICKING MATERIALS AND PROCEDURES FOR THEIR PRODUCTION.

PROCEDURE AND DEVICE FOR THE PRODUCTION OF GRANULATES FROM PRE-PRODUCTS OF THERMOPLASTIC POLYESTERS AND COPOLYESTER

BACK-UP RING FOR A FILTER OF A PELLET DRYER

Antibody-resin coupling apparatus and methods

An antibody-resin coupling apparatus quickly and efficiently activates resin beads and couples them to antibodies, while preventing breakdown and crosslinking of the beads, thereby improving downstream column purification processes, extending the usable life of the resin beads, and increasing molecule capture efficiency of the resultant resin-antibody complexes, to allow improved isolation and purification of factor VIII molecules or other drug compounds.

Process for producing plastics suitable as powder coating material and/or hot-melt-type-adhesive

ENVELOPING PELLETS OF FOAMED POLYSTYRENE

COMPARTMENTALIZED PELLET FOR IMPROVED CONTAMINANT REMOVAL

This invention is directed to an improved method for cleaning contaminated polymer when that polymer is to be blended with clean material. The method involves combining the contaminated material and the clean material in a compartmentalized pellet wherein the contaminated material is placed in the outermost compartment, the clean material is placed in an inner compartment and then subjecting the pellet to an extraction process.

PIPE MANUFACTURED FROM IRRADIATED POLYETHYLENE CONTAINING CARBON BLACK

DIRECT COUPLING OF MELT POLYMERIZATION AND SOLID STATE PROCESSING FOR PET

Strands (5) of molten polyethylene terephthalate (PET) from a PET polycondensation reactor (4) are solidified, pelletized, and cooled only to a temperature in the range of 50~C to a temperature near the polymer Tg by contact with water. The still hot pellets (9) are conveyed, optionally followed by drying to remove water, to a PET crystallizer (20). By avoiding cooling the amorphous pellets (9) to room temperature with water and cool air, significant savings of energy are realized.

METHOD AND APPARATUS FOR INTRODUCING IN CONTINUOUS A SUBSTANCE IN LIQUID PHASE INTO PLASTICS GRANULES

The invention relates to a method and an apparatus for introducing in continuous a substance in liquid phase into plastics granules by means of the steps of: (a) feeding a substantially continuous flow of said plastics granules to at least one substantially static spraying chamber, (b) spraying said substance in liquid phase onto the plastics granules continuously flowing within said spraying chamber, (c) submitting to mixing the granules partially or totally coated by said substance in liquid phase, continuously leaving the spraying chamber, by means of substantially static mixing means supported within a mixing zone provided downstream of said spraying chamber and comprising at least one mixing chamber, (d) submitting the granules so obtained to drying for a time sufficient to allow a substantially complete absorption of the substance in liquid phase by the granules. Advantageously, the invention allows to continuously impregnate plastics granules, reducing to the best extent the abrasive ...

METHOD FOR MAKING FREE-FLOWING, MELT-COATED RUBBER PELLETS

A continuous method for making free-flowing, melt-coated elastomeric pellets is disclosed in which pellets are coated with particles of coating material in a zone of interference created in a pneumatic conveying system.

PROCESS FOR PREPARING OXYMETHYLENE POLYMERS IN A GRANULAR FORM

PROCESS FOR PREPARING OXYMETHYLENE POLYMERS IN A GRANULAR FORM of the disclosure: Oxymethylene polymers are obtained in a granular form by cooling a solution or dispersion of an oxymethylene polymer, the temperature of which solution or dispersion is above the sintering temperature of the oxymethylene polymer, to a temperature just below the sintering temperature of the oxymethylene polymer. As dissolving or dispersing agent as well as precipitating and cooling agent there is used a mixture of methanol and water having a methanol content of at least 75% by weight. The oxymethylene polymer obtained is suitable as engineering plastic for preparing moulded articles.

AUTOMATIC SORTING SYSTEM FOR PLASTIC PELLETS

An automated system is provided for selectively separating resin pellets having a gel count below a specified maximum from pellets having a gel count above the specified maximum, while the pellets are flowing in a pneumatic conveyor. The separation is based on an essentially continuous measurement in which a laser beam is utilized to detect the number of gels in a film made from pellets withdrawn as a sample stream from the main pellet stream. In response to the gel count measurement, a control signal is established that is utilized to manipulate a diverter valve located in the pneumatic conveyor, which diverts plastic pellet flow between a preferred storage means storing pellets having a low gel count and a secondary storage means for storing pellets having a higher gel count. In operation, a hold up tank is provided between the point from which the sample stream is withdrawn and the diverter valve, so that the plastic pellet flow can be delayed in the hold up tank for the amount of time ...

PARTICULATE PLASTICIZED RUBBER-BLACK MASTERBATCH

METHOD AND DEVICE FOR THERMAL ROUNDING OR SPHERONIZATION OF PULVERULENT PLASTIC PARTICLES

The invention relates to a method for shaping a starting material (20) of powdered plastic particles, said method having the following method steps: a) providing powdered plastic particles as starting material (20); b) heating the plastic particles in a first treatment space to a first temperature (T1) below the melting point of the plastic, the first temperature (T1) being determined such that the plastic particles do not yet stick to one another; c) transferring a directed current of the plastic particles thus heated into a second treatment space (42); d) heating the plastic particles in the second treatment space (42) to a second temperature (T2) above the melting point of the plastic; and e) cooling the plastic particles to a temperature below the first temperature (T1).

INSTALLATION AND METHOD FOR MANUFACTURING CROSS-LINKABLE POLYETHYLENE COMPOUNDS

Installation for manufacturing cross-linkable polyethylene compounds which comprises a melting machine (101), a melt pump (102) and a filtration unit (103). The installation allows to produce cross-linkable polyethylene compounds that may be further used for manufacturing insulating parts of medium, high and extra-high voltage power cables. A method for manufacturing cross-linkable polyethylene compounds is further provided.

DEVICE AND METHOD FOR PRODUCING PLASTIC GRANULATE

The invention relates to a device (1) and a method for producing dyed (G1) and undyed (G2) plastic granulate, comprising a multi-shaft worm machine (2) and an underwater granulating device (3). The underwater granulating device is arranged downstream of a granulate changing unit (20) in a conveyor direction (19), said granulate changing unit separating the dyed plastic granulate from the undyed plastic granulate. The dyed plastic granulate is separated from the granulating water (W1) by means of a first separating device (24), whereas the undyed plastic granulate is separated from the granulating water (W2) by means of a second separating device (29). The separating devices are arranged parallel to each other. The device allows a simple, flexible, and economical selective production of the dyed and undyed plastic granulate.

BITUMEN THAT IS SOLID AT AMBIENT TEMPERATURE

Bitume solide à température ambiante sous forme de granules comprenant un cur et une couche de revêtement recouvrant tout ou en partie de la surface du cur dans lequel : le cur comprend au moins une base bitume et, la couche de revêtement comprend au moins un composé viscosifïant et au moins un composé anti-agglomérant. Procédé de fabrication de bitume solide à température ambiante ainsi que l'utilisation de bitume solide à température ambiante comme liant routier, notamment pour la fabrication d'enrobés. Procédé de fabrication d'enrobés à partir de bitume solide ainsi qu'un procédé de transport et/ou de stockage de bitume routier solide à température ambiante.

PLANT AND METHOD FOR DRYING AND SOLID STATE POLYCONDENSING OF POLYMERIC MATERIAL

A plant (1) for drying and solid state polycondensing a moisture-containing polymeric material (M) in granular form, comprising a conduit (2) for feeding the material to be treated in a longitudinal direction (L), at least one treatment zone (7) for treating the polymeric material, means (6) for blowing an inert gas into the conduit, radiating means (8) for emitting an alternating electromagnetic field in the radio-frequency band and comprising a plurality of applicators (9) located in correspondence of said treatment zone and external to the conduit in longitudinally offset positions; said applicators are connected to the terminals of an electromagnetic wave generator (10) and comprise pairs of opposed radiating elements (11, 11') which are adapted to generate an alternating electromagnetic field in the conduit; the pairs of radiating elements defining magnetic dipoles with opposite polarities along the conduit. Further claimed is a method of drying and solid state polycondensing a polymeric ...

PROCESS FOR CLASSIFYING AND COOLING POLYMER PELLETS TO BELOW THEIR TRANSITION GLASS TEMPERATURE

The present invention relates to a process for classifying and cooling polymer pellets to below their glass transition temperature which comprises: a) removing pellet fines, dust, and undersizes by passing the pellets through a screen; b) passing the pellets through a slice plate section where air is flowing through to cool the pellets; c) passing the pellets through a perforated plate that retains oversized pellets; and d) removing the pellets.

PROCESS FOR IMPARTING ELECTROSTATIC DISSIPATIVE PROPERTIES TO RECYCLED PLASTICS AND ARTICLES MADE THEREFROM

A novel process has been found wherein electrostatic dissipative properties are imparted to recycled thermoplastics. The discarded waste plastics are divided and soaked in a salt bath for a predetermined amount of time. The treated recycled thermoplastics have a resistivity in the range of approximately 105 to approximately 1012 Ohms per square. The invention also includes the treated thermoplastic having electrostatic dissipative properties which can be reprocessed into various useful objects.

LOW TEMPERATURE DRYING OF IMPACT MODIFIED POLYCARBONATE/POLYESTER COMPOSITIONS

A thermoplastic molding composition comprising a resinous blend of polycarbonate, polyester and an impact modifier and an additive amount of a siloxane compound containing a pendant oxirane group is disclosed. It was surprisingly and unexpectedly discovered that unlike the corresponding compositions which contain no siloxane compound, the inventive composition is capable of being dried at low temperatures prior to molding and still maintain high impact strength.

Procédé pour l'incorporation à une matière solide sous forme de particules d'une substance à l'état fluide et appareil pour la mise en oeuvre de ce procédé.

Verfahren zur Herstellung von vernetzten Kunststoffkörpern

Verfahren zur Herstellung eines Epoxyharzpulvers

Freifliessende Körner, Verfahren zur Herstellung und Verwendung derselben

Vorrichtung zur Dichteänderung synthetischer Schaumstoffteilchen

Thermoplastics with filler

A method for making objects of thermoplastics contg. non-thermoplastics granular fillers, consists of encasing the granules in finely pulverised thermoplastics, melting the latter, then bringing the mixture to the final desired form. Specifically, heated granules are coated with thermoplastics, revolved in a drum to remove excess coating, then discharged for use.

DEVICE FOR DEHUMIDIFYING SOLIDS TRANSPORTED BY A FLOWING GAS.

PROCEDURE AND DEVICE FOR THE CRYSTALLIZATION OF PLASTIC GRANULATES.

PROCEDURE FOR THE REDUCTION OF THE MONOMER CONTENT OF POLYMERS ON BASIS OF ACRYLONITRILE.

Procedure for the production of highly compressed conductive surface material.

A process for producing a non-adhesive granules from a polyester material and a granules thus produced for further processing.

Bei einem Verfahren zur Herstellung eines nicht klebenden Granulats aus einem Polyestermaterial, bei welchem das Polyestermaterial als mindestens ein schmelzflüssiger Strang in einen Kühlwasserstrom austritt und nach Durchlaufen einer Kühlstrecke (4) vom Kühlwasser abgetrennt wird, beträgt die Verweilzeit des Polyestermaterials in der Kühlstrecke (4) erfindungsgemäss 0.2–2.0 sec und weist das Kühlwasser entlang der Kühlstrecke (4) einen Druck von mindestens 2 bar auf. Für das so erhaltene Granulat ist eine Nachkristallisation nicht, zumindest nicht in jedem Fall, erforderlich. Es hat sich gezeigt, dass das Granulat auch ohne Nachkristallisation und mechanische Bewegung nicht verklebt, wenn kein zusätzlicher externer Energieeintrag erfolgt. Sogar bei einer massigen Erwärmung unter Druck konnten keine Verklebungen beobachtet werden. Das Granulat ist für eine direkte Weiterverarbeitung ggf. unter Ausnutzung seiner noch hohen Temperatur geeignet.

Verfahren zur Geruchsentfernung aus recycelten Polyolefin-Pellets.

Die Erfindung betrifft ein Verfahren zur Geruchsentfernung aus recycelten Polyolefin-Pellets (23). Der Geruchsentfernungs-Prozess erfolgt in drei Schritten: (a) In einem ersten Schritt werden die feuchten Pellets (23) in einem Dampf-Stripper (11) mit einem zirkulierenden Inertgas (mit einer Temperatur zwischen 110 °C und 160 °C) in Kontakt gebracht und der Dampf wird in einer Kondensatfalle (29) ausgefällt (b) In einem zweiten Schritt werden die Pellets (23) einem unter Unterdruck stehenden Vakuumsilo (13) aufgegeben und mit einem im Gegenstrom strömenden Gas kontaktiert. (c) In einem dritten Schritt werden die Pellets (23) nach dem Vakuumsilo (13) einem ersten Wärmetauscher (15) aufgegeben und mit dem im Gegenstrom strömenden Gas aus dem zweiten Schritt kontaktiert.

СПОСОБ И УСТРОЙСТВО ДЛЯ СНИЖЕНИЯ СОДЕРЖАНИЯ АЦЕТАЛЬДЕГИДА В ПОЛИЭФИРНОМ ГРАНУЛЯТЕ

Изобретение относится к способу получения гранулята с незначительным содержанием ацетальдегида и улучшенными свойствами в отношении переработки из высоковязкого полиэфирного расплава, причем жгут из полиэфирного расплава под водой измельчают по возможности при высокой температуре, сопутствующую воду отделяют от гранулята по возможности при незначительном охлаждении гранулята, таким образом, полученный, содержащий незначительное количество воды, гранулят после отделения воды прямо вводят в емкость для деальдегидизации и гранулят в емкости для деальдегидизации обрабатывают с помощью потока продувочного воздуха; а также к устройству для осуществления способа.

METHOD AND DEVICE FOR PRODUCING COLORED AND UNCOLORED PLASTIC MELT

СПОСОБ ПОЛУЧЕНИЯ РАВНОМЕРНО КРИСТАЛЛИЗОВАННЫХ ГРАНУЛЯТОВ ИЗ ПОЛИКОНДЕНСАТА

Изобретение относится к способу непрерывного получения частично кристаллического гранулята из поликонденсата, включающему в себя следующие стадии: получение расплава поликонденсата, формование гранул из поликонденсата и отверждение расплава поликонденсата в жидкой охлаждающей среде, при этом формование гранул может проводиться до или после отверждения, отделение гранул от жидкой охлаждающей среды после их охлаждения до средней температуры, лежащей в диапазоне температур кристаллизации поликонденсата, и кристаллизация гранул в камере обработки, причём в камере обработки обрабатывающий газ движется противоточно гранулам из поликонденсата, скорость потока обрабатывающего газа превышает точку псевдоожижения гранулята из поликонденсата, и гранулы из поликонденсата характеризуются узким диапазоном времени выдержки в камере обработки.

СПОСОБ И УСТРОЙСТВО ДЛЯ СНИЖЕНИЯ СОДЕРЖАНИЯ АЦЕТАЛЬДЕГИДА В ПОЛИЭФИРНОМ ГРАНУЛЯТЕ

Изобретение относится к способу получения гранулята с незначительным содержанием ацетальдегида и улучшенными свойствами в отношении переработки из высоковязкого полиэфирного расплава, причем жгут из полиэфирного расплава под водой измельчают по возможности при высокой температуре, сопутствующую воду отделяют от гранулята по возможности при незначительном охлаждении гранулята, таким образом, полученный, содержащий незначительное количество воды гранулят после отделения воды прямо вводят в емкость для деальдегидизации и гранулят в емкости для деальдегидизации обрабатывают с помощью потока продувочного воздуха; а также изобретение относится к устройству для осуществления способа.

УДАЛЕНИЕ ЛЕТУЧИХ СОЕДИНЕНИЙ ИЗ ПОЛИМЕРНЫХ ГРАНУЛ

Согласно изобретению предложен способ обработки пластического материала, включающий а) обеспечение жидкости; б) приведение в контакт пластического материала с жидкостью; в) выдерживание пластического материала в жидкости при температуре, составляющей от Ткип - 25°С до Ткип жидкости, где Ткип представляет собой точку кипения жидкости при прилагаемом давлении; и г) извлечение пластического материала из жидкости. Кроме того, согласно изобретению предложены применение жидкости для обработки пластического материала и установка для обработки пластического материала жидкостью.

СПОСОБ И УСТРОЙСТВО ДЛЯ ПРОИЗВОДСТВА ОКРАШЕННОГО И НЕОКРАШЕННОГО РАСПЛАВА ПЛАСТИКА

Предложено устройство (1) для производства окрашенного гранулированного пластика (G1) и неокрашенного гранулированного пластика (G2), содержащее многочервячный экструдер (2) и установку (3) подводного гранулирования. По направлению (19) транспортирования материала за установкой (3) подводного гранулирования расположен узел (20) переключения потоков гранулированного пластика, выполненный с возможностью разделения потоков окрашенного гранулированного пластика (G1) и неокрашенного гранулированного пластика (G2). С помощью первой разделительной установки (24) обеспечена возможность разделения окрашенного гранулированного пластика (G1) и гранулирующей воды (W1), а с помощью второй разделительной установки (29) обеспечена возможность разделения неокрашенного гранулированного пластика (G2) и гранулирующей воды (W2). Упомянутые разделительные установки (24, 29) установлены параллельно друг другу. Устройство (1) обеспечивает возможность простого, гибкого и экономически эффективного производства ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ПОЛУЧЕНИЯ ТВЕРДОФАЗНЫХ ПОЛИКОНДЕНСИРОВАННЫХ СЛОЖНЫХ ПОЛИЭФИРОВ

Настоящее изобретение относится к способу получения твердофазных поликонденсированных сложных полиэфиров при использовании кристаллизации с или без последующей твердофазной поликонденсации для изготовления бутылок, листов, пленок и высокопрочных технических нитей. Международная заявка была опубликована вместе с отчетом о международном поиске.

СПОСОБ ПОЛУЧЕНИЯ РАВНОМЕРНО КРИСТАЛЛИЗОВАННЫХ ГРАНУЛЯТОВ ИЗ ПОЛИКОНДЕНСАТА

Изобретение относится к способу непрерывного получения частично кристаллического гранулята из поликонденсата, включающему в себя следующие стадии: получение расплава поликонденсата, формование гранул из поликонденсата и отверждение расплава поликонденсата в жидкой охлаждающей среде, при этом формование гранул может проводиться до или после отверждения, отделение гранул от жидкой охлаждающей среды после их охлаждения до средней температуры, лежащей в диапазоне температур кристаллизации поликонденсата, и кристаллизация гранул в камере обработки, причём в камере обработки обрабатывающий газ движется противоточно гранулам из поликонденсата, скорость потока обрабатывающего газа превышает точку псевдоожижения гранулята из поликонденсата, и гранулы из поликонденсата характеризуются узким диапазоном времени выдержки в камере обработки.

УСТРОЙСТВО И СПОСОБ ПОЛУЧЕНИЯ ПОЛИМЕРНЫХ ГРАНУЛ

Изобретение относится к устройству и способу получения полимерных гранул, которые содержат один или более полимерных компонентов и один или более дополнительных компонентов, где в указанном способе по меньшей мере один из указанных одного или более дополнительных компонентов вводят в гранулы путем нанесения жидкости, которая включает указанный по меньшей мере один компонент, на указанные гранулы.

СПОСІБ І ПРИСТРІЙ ДЛЯ ОДЕРЖАННЯ ТВЕРДОФАЗНИХ ПОЛІКОНДЕНСОВАНИХ СКЛАДНИХ ПОЛІЕФІРІВ

Даний винахід стосується способу одержання твердофазних поліконденсованих складних поліефірів при використанні кристалізації з або без наступної твердофазної поліконденсації для виготовлення пляшок, листів, плівок і високоміцних технічних ниток.

Low cost process for manufacture of form-stable phase change material

The present invention generally relates to a method for manufacturing phase change material (PCM) pellets. The method includes providing a melt composition including paraffin and a polymer. The paraffin has a melt point between about 10° C. and about 50° C., and more preferably between about 18° C. and about 28° C. In one embodiment, the melt composition includes various additives, such as a flame retardant. The method further includes forming the melt composition into PCM pellets. The method further may include the step of cooling the melt to increase the melt viscosity before pelletizing.

Method and apparatus to condition polymers utilizing multiple processing systems

A continuous process wherein polymers or polymeric materials can be subjected to multiple sequential processing systems of differing temperatures and process conditions to synergistically enhance the pelletization and conditioning of those polymers and polymeric formulations, dispersions, and solutions. The multiple sequential processing systems include the processes and equipment for mixing/extrusion, pelletization, multiple transportation processes, conditioning, multiple defluidizing processes, and optional post-processing manipulations of pellets formed. Multiple serial and/or parallel conditioning processing systems are disclosed.

Device for drying bulk goods

The invention relates to a device for drying bulk goods, in particular solids, such as granular materials, powders, grains, films, shreds, or the like, preferably plastic granular material. In order to dry the exhaust air flow ( 5 ) exiting the drying silo ( 9 ), the drying silo ( 9 ), through which an air flow flows, is connected by means of a process fan ( 11 ) to a wheel drier ( 1 ) that contains a drying or adsorbing agent and that has a rotatable drum ( 2 ) having radial cells ( 21 ). The individual cells ( 21 ) of the drum ( 2 ) of the wheel drier ( 1 ) are formed by plates, wherein clamping plates ( 24 ) of a cell ( 21 ) lying against the radial outer ( 22 ) and inner ( 23 ) jackets of the drum ( 2 ) have a U-shaped cross-section and are arranged axially on the inner wall. The legs ( 25 ) of the U-shaped clamping plates ( 24 ) are tilted outwardly. Separating plates ( 26 ) are provided as partitions of the individual cells ( 21 ). The separating plates are positioned by the clamping effect of adjacent legs ( 25 ) of two U-shaped clamping plates ( 24 ) lying against each other and seal off the cells from each other.

Process of Producing PCR Pellets

A process for producing, from PCR polyolefin feedstock, pellets which are suitable for molding into useful articles suitable for food contact and other applications wherein feedstock fragrances are not desirable.

Apparatus for drying pellets

An apparatus for drying pellets having a housing and a rotor with rotor blades that is arranged in the housing such that it can be driven in rotation, having a dewatering region with at least one dewatering screen with dewatering screen openings that are smaller in size than the pellets, so that the process fluid can be separated from the pellets by means of passage from a screen front to a screen rear, wherein an auxiliary blower is arranged such that an auxiliary airflow from it is imparted in the direction of the pellets' primary direction of movement through the housing.

SULFUR GRANULATOR SYSTEM AND METHOD

Sulfur (or sulphur) spray nozzles disposed with a tank spray liquid molten sulfur into the cooling liquid in the tank. Solid sulfur seeds are formed in the cooling liquid and settle in the tank. The tank may be a spiral dewaterer tank that has a screw conveyor at the bottom of the tank that moves the seeds to a granulating drum for enlargement into sulfur granules. The tank may also be used to capture and remove sulfur dust from a slurry of sulfur dust and water recycled from the granulating drum. The sulfur dust in the cooling tank may be captured by contact with molten sulfur droplets streaming down the cooling liquid column such that the dust particles become incorporated into the droplet, thereby being converted to seed. The granulating drum may be equipped with two or more sets of segmented lifting flights. The sets of flights may not be in alignment. The flights may be spaced apart from the inside surface of the drum with segmented rib members. The rib members may allow for the movement of sulfur seeds and granules between the flights and the inside surface of the drum as the drum rotates. 1. A system for converting molten sulfur into sulfur seeds used for making sulfur granules , comprising:a tank storing a fluid;a first nozzle disposed with said cooling tank;the molten sulfur sprayed by said first nozzle into said liquid; andsulfur seeds formed by the interaction of the sulfur with the liquid.2. The system of claim 1 , wherein the tank is a spiral dewaterer tank having an angled bottom surface and a screw conveyor.3. The system of claim 2 , wherein the sulfur seeds are transported out of the tank with said screw conveyor.4. The system of claim 3 , further comprising:a granulating drum for enlarging sulfur seeds into granules coupled to the tank, wherein the sulfur seeds are transported with said screw conveyor to said drum.5. The system of claim 4 , further comprising:a drum effluent line in fluid communication between said granulating drum and said tank ...

Method for the Production of Polyester Granulates From Highly Viscous Polyester Melts and Also Device for the Production of the Polyester Granulates

The invention relates to a method and device for the direct production of polyester granulate from a highly viscous polyester melt with a polymerisation degree of 132 to 165, as well as the granulates formed thereform. In the method, the highly viscous polyester melt is subjected to a pre-drying and drying/degassing after a hot cutting method. Hot cutting is implemented at water temperatures of 70° C. to 95° C. and with a liquid to solid ratio of 8 to 12:1. 1. Method for the direct production of polyester granulate from a highly viscous polyester melt (hiV) with a polymerisation degree (PG) of 132 to 165 , in which the hiV melt is subjected to a pre-drying and drying/degassing after a hot cutting method , characterised in that the cutting phase in the hot cutting method is effected at water temperatures of 70 to 95° C. and a liquid to solid ratio of 8 to 12:1 is maintained.2. Method according to claim 1 , characterised in that a dwell time in the water of the hot cutting until entry into the pre-drying of <1 second is maintained.3. Method according to claim 1 , characterised in that the liquor is maintained in its entirety until entry into the pre-drying.4. Method according to claim 1 , characterised in that claim 1 , during the pre-drying in the upper fifth of the pre-dryer claim 1 , 99% of the circulating water is separated within <10 seconds.5. Method according to claim 1 , characterised in that claim 1 , during the pre-drying in the pre-dryer claim 1 , a crystallisation degree of at least 5% is achieved so that the agglomeration of granulates is prevented.6. Method according to claim 1 , characterised in that an outlet moisture of the granulate from the pre-drying of <200 ppm is achieved.7. Method according to claim 1 , characterised in that the dew point during pre-drying in the pre-dryer is controlled to 8 to 12° C. by means of a quantity of purging air from a subsequently connected collecting container.8. Method according to claim 7 , characterised in that a ...

METHOD AND APPARATUS FOR GENERATING PARTICLES

A method and an apparatus for generating particles are provided. The method may be a method for generating particles from a flowable medium, the method involving forming drops from the flowable medium, arranging the drops on a particle forming surface and solidifying the drops, thereby forming the particles. The apparatus may be an apparatus for generating particles from a flowable medium with a drop generator and a particle forming surface, the drop generator being formed to arrange drops on the particle forming surface and the particle forming surface may be adapted to contact the drops when the particles are being formed. 1. Method for generating particles from a flowable medium , the method involving forming drops from the flowable medium , arranging the drops on a particle forming surface , and solidifying the drops at least partially thereby forming particles.2. Method of claim 1 , characterized by atomizing the flowable medium in order to form the drops.3. Method of claim 2 , characterized by spraying the flowable medium through a nozzle for atomizing the fluid.4. Method of claim 2 , characterized by treating the flowable medium with ultrasonic for generating atomized flowable medium.5. Method of claim 1 , characterized by arranging the drops on the particle forming surface before solidifying the drops.6. Method of claim 1 , characterized by thermally treating the drops for solidifying the drops.7. Method of claim 1 , characterized by changing ambient pressure around the drops for solidifying the drops.8. Apparatus for generating particles from a flowable medium claim 1 , with a drop generator for forming drops from the flowable medium claim 1 , and with a particle forming surface claim 1 , the drop generator being formed to arrange the drops on the particle forming surface and the particle forming surface being adapted to contact the drops when the particles are being generated.9. Apparatus of claim 8 , characterized in that the particle forming surface is ...

SYSTEMS AND METHODS FOR HIGH-THROUGHPUT MICROFLUIDIC BEAD PRODUCTION

A system for producing microbeads includes a microfluidic device defining a supply channel and a shearing channel, a microbead precursor material disposed in the supply channel, a carrier fluid disposed in the shearing channel, and a pressure distribution system fluidly connected to each of the supply channel and the shearing channel to control at least relative pressures of the microbead precursor material and the carrier fluid. The supply channel includes a check valve adapted to be subjected to a bias pressure that is sufficient to close the check valve to flow of microbead precursor material when a supply pressure of the microbead precursor material is below a threshold pressure and is open to flow of the microbead precursor material when the supply pressure of the microbead precursor material is greater than the threshold pressure. An end of the supply channel opens into the shearing channel such that the microbead precursor material is sheared into droplets by the carrier fluid flowing through the shearing channel. A pressure of the carrier fluid is less than the bias pressure. The microbead precursor material and the carrier fluid are substantially immiscible. 1. A system for producing microbeads , comprising:a microfluidic device defining a supply channel and a shearing channel;a microbead precursor material disposed in said supply channel;a carrier fluid disposed in said shearing channel; anda pressure distribution system fluidly connected to each of said supply channel and said shearing channel to control at least relative pressures of said microbead precursor material and said carrier fluid,wherein said supply channel comprises a check valve adapted to be subjected to a bias pressure that is sufficient to close said check valve to flow of microbead precursor material when a supply pressure of said microbead precursor material is below a threshold pressure and is open to flow of said microbead precursor material when said supply pressure of said microbead ...

PROCESS FOR MANUFACTURING PELLETS AND PELLETS OBTAINED BY THE PROCESS

The invention relates to a process for manufacturing pellets from wet biomass residues having a high water content of between 25% and 80% comprising the steps of a) charging the homogenate of wet biomass residues into a receptacle, b) drying the wet biomass residues in a dryer and c) converting the dry biomass residues in a pelleting press comprising a steel die pierced with holes and a steel rotor comprising notched wheels made of steel, in order to obtain the pellets, said process comprising/being characterized in that a step of drying the wet biomass residues is carried out at the same time as the pellet-conversion step at a temperature between 65° C. and 95° C. in a pelleting press coupled, in a closed circuit, to a dryer with air/air exchange comprising a pelleting press/dryer communication by-pass. The invention also relates to the pellets of plant or wood origin obtained by the process described and having a compaction of greater than 750 kg/m.

Underwater Pelletizing Method For Low Viscosity Hydrocarbon Resins

An underwater pelletizing method for pelletizing brittle hydrocarbon resins with low melt viscosity. A feed material comprising the hydrocarbon resin is formed into a melt, extruded through a die into a water bath below the Tg of the hydrocarbon resin to form a plurality of extrudates and cut adjacent the die surface to form a slurry of resin pellets. A graft monomer and/or other reactants, such as a hydrosilylation agent, may be introduced into the resin melt to chemically modify the hydrocarbon resin. 1. A method , comprising:forming a feed material comprising a hydrocarbon resin into a resin melt, wherein the feed material comprises a Tg (DSC method) of from about 30° C. to about 110° C. and a melt viscosity less than 2500 mPa-s (2500 cP), measured at a temperature 60° C. above the softening point;extruding the resin melt through a multiple-orifice die into a water bath flowing across a surface of the die, wherein the water bath is supplied at a temperature below the Tg of the feed material, to form a plurality of resin extrudates; andcutting the resin extrudates adjacent the die surface to form a slurry of resin pellets.2. The method of claim 1 , wherein the hydrocarbon resin comprises an interpolymer comprising at least one monomer chosen from piperylenes claim 1 , cyclic pentadienes claim 1 , aromatics claim 1 , limonenes claim 1 , pinenes claim 1 , and amylenes.3. The method of claim 1 , further comprising heating the resin melt to a temperature 60° C. or more above the softening point.4. The method of claim 1 , further comprising cooling the resin melt to a temperature at the die before the extrusion that is less than 50° C. above the softening point and at least 10° C. above the softening point.5. The method of claim 1 , further comprising separating the slurry to remove dewatered resin pellets from a spent water stream and drying the dewatered resin pellets under low shear conditions.6. The method of claim 1 , further comprising separating the slurry to ...

METHOD AND DEVICE FOR PRODUCING AND TREATING PELLETS

The invention relates to a method and a device for producing and treating plastic pellets. According to said method, a melt of the plastic material is granulated to give pellets, the pellets are cooled in a cooling fluid, the pellets are separated from the cooling fluid and the pellets are crystallized. The device according to the invention is characterized by comprising a control unit which monitors the crystallization step and controls the method in such a manner that, in case of a disturbance of crystallization, the pellets are supplied to an intermediate storage alter separation of the pellets from the cooling fluid and, as soon as the disturbance is removed, the pellets temporarily stored in the intermediate storage are supplied to crystallization and are crystallized. 114-. (canceled)16. The method according to claim 15 , wherein the plastic material is a claim 15 , thermoplastic condensation polymer.17. The method according to claim 15 , wherein the control unit decreases a temperature of the cooling fluid from a temperature Tto a temperature T Подробнее

Resin blend for melting process

The present invention relates to a resin blend for a melting process, to a method for preparing same, and to a resin-molded article having a specific layer separation structure, the resin blend comprising a first resin and a second resin, wherein the second resin comprises a polymer resin having an organic functional group containing one or more oxygen atoms, and has a melt viscosity difference of 0.1 to 3,000 pa*s with respect to the first resin at a shear rate of 100 to 1,000 s −1 and a processing temperature of the resin blend. The resin blend allows a resin-molded article to have enhanced mechanical properties and surface hardness, and exhibits the effects of reducing a processing time, increasing productivity and reducing production cost by eliminating an additional surface coating step.

Dosage Form

The present invention provides a dosage form, particularly a tamper resistant dosage form, comprising; non-stretched melt extruded particulates comprising a drug selected from an opioid agonist, a tranquilizer, a CNS depressant, a CNS stimulant or a sedative hypnotic; and a matrix; wherein said melt extruded particulates are present as a discontinuous phase in said matrix. 1. A dosage form comprising:non-stretched, melt-extruded particulates comprising a drug selected from an opioid agonist, a tranquilizer, a CNS depressant, a CNS stimulant or a sedative hypnotic; and a matrix;wherein said melt-extruded particulates are present as a discontinuous phase in said matrix.2. The dosage form as claimed in claim 1 , wherein said drug is an opioid agonist.3. The dosage form as claimed in claim 2 , wherein said opioid agonist is selected from the group consisting of oxycodone claim 2 , oxymorphone claim 2 , hydrocodone claim 2 , hydromorphone claim 2 , morphine claim 2 , codeine claim 2 , buprenorphine claim 2 , fentanyl claim 2 , tramadol claim 2 , and tapentadol claim 2 , or a pharmaceutically acceptable salt thereof.4. The dosage form as claimed in claim 1 , which comprises 15-80% wt of said melt-extruded particulates claim 1 , based on the total weight of the dosage form.5. The dosage form as claimed in claim 1 , which comprises 20-85% wt of said matrix claim 1 , based on the total weight of the dosage form.6. The dosage form as claimed in claim 1 , wherein said matrix comprises a continuous phase comprising a gel-forming agent.7. The dosage form as claimed in in the form of a tablet.810-. (canceled)11. The dosage form as claimed in claim 1 , wherein said melt-extruded particulates are microparticulates.12. The dosage form as claimed in claim 1 , wherein said melt-extruded particulates have a diameter and/or length of less than about 900 μm.13. (canceled)14. The dosage form as claimed in claim 1 , wherein said melt-extruded particulates comprise 3 to 50% wt of drug claim ...

Apparatus and method for controlled pelletization processing

An apparatus and process to maintain control of the temperature of low-melting compounds, high melt flow polymers, and thermally sensitive materials for the pelletization of such materials. The addition of a cooling extruder, and a second melt cooler if desired, in advance of the die plate provides for regulation of the thermal, shear, and rheological characteristics of narrow melting-range materials and polymeric mixtures, formulations, dispersions or solutions. The apparatus and process can then be highly regulated to produce consistent, uniform pellets of low moisture content for these otherwise difficult materials to pelletize.

IMPACT MODIFIER AND USES THEREOF IN THERMOSET MATERIALS

The present invention relates to an impact modifier and a device and a method for the production thereof, as well as to a method for preparing a thermoset material, or a thermoset material precursor, from the impact modifier. The impact modifier comprises at least one copolymer selected from A-B-A, A-B, and A-B-C block copolymers in which: each block is linked to the other by means of a covalent bond or an intermediate molecule that is connected to one of the blocks by a covalent bond and to the other block by another covalent bond; A is a PMMA homopolymer or a copolymer of methyl methacrylate, A preferably being compatible with the resin; C is either (i) a PMMA homopolymer or a copolymer of methyl methacrylate, or (ii) a polymer based on monomers or a mixture of vinyl monomers, and blocks A and C are identical; and B is incompatible or partially compatible with the thermoset resin and incompatible with block A and optional block C. The impact modifier is characterized in that it takes the form of microgranules having a diameter of less than 1500 μm, and preferably between 400 and 1000 μm. The ratio of the standard-deviation/mean size of the particles is less than 10%, preferably less than 5%. 2. The impact modifier as claimed in claim 1 , wherein the block A is a MMA copolymer and the comonomer is selected from the group consisting ofalkyl methacrylates in which the alkyl group contains from 1 to 18 carbons, methyl methacrylate, ethyl methacrylate, propyl methacrylate, n-butyl methacrylate, t-butyl methacrylate, n-hexyl methacrylate, cyclohexyl methacrylate, 2 ethylhexyl methacrylate, n-octyl methacrylate, lauryl methacrylate, tridecyl methacrylate, stearyl methacrylate, and isobornyl methacrylate;acrylic acid, methacrylic acid, amides derived from acrylic acid or methacrylic acid, dimethylacrylamide, 2-methoxyethyl acrylate or methacrylate, optionally quaternized 2-aminoethyl acrylates or methacrylates, polyethylene glycol (PEG) (meth)acrylates, and N- ...

GAS DISPERSION MANUFACTURE OF NANOPARTICULATES, AND NANOPARTICULATE-CONTAINING PRODUCTS AND PROCESSING THEREOF

In one aspect, the present invention relates to a method of making multi-phase particles that include nanoparticulates and matrix, which maintains the nanoparticulates in a dispersed state. A flowing gas dispersion is generated that includes droplets of a precursor medium dispersed in a gas phase. The precursor medium contains liquid vehicle and at least a first precursor to a first material and a second precursor to a second material. The multi-phase particles are formed from the gas dispersion by removing at least a portion of the liquid vehicle from the droplets of precursor medium. The nanoparticulates in the multi-phase particles include the first material and the matrix in the multi-phase particles includes the second material. 111-. (canceled)12. A gas dispersion method for making nanoparticulates , the method comprising:generating a flowing gas dispersion, as generated the gas dispersion comprising droplets of a precursor medium dispersed in a gas phase, with the precursor medium comprising liquid vehicle and at least two precursors, a first said precursor being a precursor to a first material and a second said precursor being a precursor to a second material, the second material being a surface-modifying material;in the gas dispersion, forming particles dispersed in the gas phase, the particles each comprising the second material and nanoparticulates that include the first material;the forming particles comprising removing at least a portion of the liquid vehicle from the droplets;wherein, the particles are decomposable in a liquid dispersion medium to release the nanoparticulates from the particles for dispersion of the nanoparticulates in the liquid dispersion medium; andwherein, when the particles are decomposed in and the nanoparticulates are dispersed in the liquid dispersion medium, at least a portion of the second material modifies a surface of the dispersed nanoparticulates.13. The method of claim 12 , wherein the second material comprises a ...

METHOD FOR PRODUCING FINE PARTICLES

The invention addresses the problem of providing a novel method for controlling the particle size of deposited fine particles in a fine particle production method that introduces a fluid to be processed between at least two processing surfaces, which are disposed facing each other, are advancible and retractable, and at least one rotates relative to the other, to deposit fine particles in the thin fluid film which forms between said processing surfaces. A fluid to be processed is introduced between processing surfaces () that are disposed facing each other, are advancible and retractable, and at least one rotates relative to the other to deposit fine particles in the thin fluid film that forms between the processing surfaces (). The particle size of said fine particles is controlled by controlling the temperature of the fluid to be processed that contains the deposited fine particles. Said temperature control can be accomplished by providing a temperature adjusting apparatus () and a jacket () in the flow channel or receptacle for the fluid to be processed after outflow and controlling the temperature of the fluid to be processed that contains the deposited fine particles. 1. A method for producing fine particles wherein , in the method in which a fluid to be processed is introduced between at least two processing surfaces which are disposed in a position they are faced with each other so as to be able to approach to and separate from each other , at least one of which rotates relative to the other whereby separating fine particles in a thin film fluid formed between the processing surfaces , particle diameter of the fine particles is controlled by controlling a temperature of the fluid to be processed that contains the said separated fine particles.2. The method for producing fine particles according to claim 1 , wherein control of the temperature of the fluid to be processed that contains the separated fine particles is done by controlling a temperature of the ...

COMPOSITE MATERIAL

In a method of manufacturing a composite material, a catalyst material is patterned within a deposition area to form an array of catalyst regions. A first array of bundles of filaments is grown on the catalyst regions. Adjacent filaments in the bundle are spaced by an inter-filament gap. Adjacent bundles are spaced in the array by an inter-bundle gap substantially free of filaments. The free tips of the filaments are drawn together within each bundle, so that the inter-filament gaps become smaller at the tip of each bundle than at the base of each bundle where the filaments remain attached to the catalyst region. These steps are repeated to provide a second array of bundles of filaments. The second array are positioned or grown at least partly in the inter-bundle gaps of the first array. The inter-filament gaps and inter-bundle gaps of both arrays are impregnated with a matrix material. 1. A method of manufacturing a composite material , the method comprising:a. depositing a catalyst material over a deposition area, the catalyst material being patterned within the deposition area to form an array of catalyst regions which are spaced apart by gaps substantially free of catalyst material, wherein a proportion of the deposition area occupied by the catalyst regions is greater than a proportion of the deposition area which is substantially free of catalyst material;b. growing a first array of bundles of filaments on the catalyst regions, wherein growth of the filaments is catalysed by the catalyst material, each filament has a base attached to the catalyst region and a free tip, each filament is spaced apart from adjacent filaments in the bundle by an inter-filament gap, each bundle is spaced apart from adjacent bundles in the array by an inter-bundle gap substantially free of filaments, and each bundle has a base attached to the catalyst region and a free tip;c. drawing the free tips of the filaments together within each bundle, so that the inter-filament gaps become ...

SOLID FACE DIE PLATE

A solid face die plate for an underwater pelletizer includes a carrier or holding plate having a circular slot for holding a hard anti-wear element of highly wear-resistant material through which the extrusion orifices open for extruding polymer. The solid face die plate eliminates the need for insulation or plugging material in the center of the die plate and, by embedding the hard anti-wear element within the carrier, protects the edges of the hard anti-wear element for longer wear life. 118-. (canceled)19. A solid face die plate for extruding polymer in an underwater pelletizer comprising:a solid face die plate having a die plate body with a generally circular, solid downstream face and a generally circular solid face plate affixed to an attaching surface on the solid downstream face of said die plate body and extending fully across said solid downstream face, said solid face plate including a carrier and a hard anti-wear element embedded within said carrier.20. The solid face die plate as set forth in claim 19 , wherein said die plate body includes a die plate base member and a removable die insert body fitted therein claim 19 , said solid face plate being assembled to said die insert body.21. The solid face die plate as set forth in claim 20 , wherein said solid face plate is flush with said die insert body.22. The solid face die plate as set forth in claim 19 , wherein said carrier has a one-piece construction that eliminates need for an insulation plate or plug.23. The solid face die plate as set forth in claim 19 , wherein said carrier is removably assembled to the attaching surface by fastening elements.24. The solid face die plate as set forth in claim 19 , wherein said hard anti-wear element as embedded in said carrier is flush therewith such that edges of said hard anti-wear element are protected from wear by said carrier.25. The solid face die plate as set forth in claim 19 , wherein said hard anti-wear element is made of tungsten carbide and said ...

Weighing and Mixing System

The invention is a weigh ng and mixing system for the preparation of mixtures of components required by processing machines for the manufacture of plastic products. In particular the invention is suitable for the preparation of weighed mixtures comprised of at least two different masterbatches in order to obtain the color shade desired for a specific plastic product.

FIBER-REINFORCED MULTILAYERED PELLET, MOLDED ARTICLE MOLDED THEREFROM, AND METHOD OF PRODUCING FIBER-REINFORCED MULTILAYERED PELLET

A fiber-reinforced multilayered pellet includes a sheath layer and a core layer, the sheath layer being made of a resin composition containing a thermoplastic resin (a1) and a fibrous filler (b1), wherein the fibrous filler (b1) has a weight-average fiber length (Lw) of 0.1 mm to less than 0.5 mm and a weight-average fiber length/number-average fiber length ratio (Lw/Ln) of 1.0 to less than 1.8, the core layer being made of a resin composition containing a thermoplastic resin (a2) and a fibrous filler (b2), wherein the fibrous filler (b2) has a weight-average fiber length (Lw) of 0.5 mm to less than 15.0 mm and a weight-average fiber length/number-average fiber length ratio (Lw/Ln) of 1.8 to less than 5.0. 18-. (canceled)9. A fiber-reinforced multilayered pellet comprising:a sheath layer; anda core layer,the sheath layer comprising a resin composition comprising a thermoplastic resin (a1) and a fibrous filler (b1), wherein the fibrous filler (b1) has a weight-average fiber length (Lw) of 0.1 mm to less than 0.5 mm and a weight-average fiber length/number-average fiber length ratio (Lw/Ln) of 1.0 to less than 1.8,the core layer comprising a resin composition comprising a thermoplastic resin (a2) and a fibrous filler (b2), wherein the fibrous filler (b2) has a weight-average fiber length (Lw) of 0.5 mm to less than 15.0 mm and a weight-average fiber length/number-average fiber length ratio (Lw/Ln) of 1.8 to less than 5.0.10. The fiber-reinforced multilayered pellet according to claim 9 , wherein the resin composition constituting the sheath layer comprises 40 to 95% by weight of the thermoplastic resin (a1)) and 5 to 60% by weight of the fibrous filler (b1).11. The fiber-reinforced multilayered pellet according to claim 9 , wherein the resin composition constituting the core layer comprises 40 to 95% by weight of the thermoplastic resin (a2) and 5 to 60% by weight of the fibrous filler (b2).12. The fiber-reinforced multilayered pellet according to claim 9 , wherein at ...

BLENDED FIBER MAT FORMATION FOR STRUCTURAL APPLICATIONS

A process and system are provided for introducing a blend of chopped and dispersed fibers on an automated production line amenable for inclusion in molding compositions as a blended fiber mat for structural applications. The blend of fibers are simultaneously supplied to an automated cutting machine illustratively including a rotary blade chopper disposed above a vortex supporting chamber. The blend of chopped fibers and binder form a chopped mat. The chopped mat has a veil mat placed on either side, and is consolidated with the veil mat using heated rollers maintained at the softening temperature of thermoplastic binder, with consolidated mats being amenable to being stored in rolls or as flat sheets. A charge pattern is made using the consolidated mat, and the charge pattern can be compression molded in a mold maintained at a temperature lower than the melting point of the thermoplastic fibers. 2. The process of wherein said two or more different fiber types comprises at least two of: glass claim 1 , carbon claim 1 , polyimides claim 1 , polyaramides claim 1 , polyesters claim 1 , polyamides claim 1 , and a binder.3. The process of wherein said automated cutting machine is a rotating chopper vertical disposed above a vortex chamber.4. The process of wherein the two or more fiber types are supplied to provide a defined ratio by weight in the blended fiber mat.5. (canceled)6. (canceled)7. The process of further comprising exposing the chopped fibers to a plasma treatment.8. The process of wherein the plasma exposure is within a fluidized bed reactor.9. (canceled)10. (canceled)11. The process of further comprising placing a veil mat on either side of the blended fiber mat.12. The process of wherein the veiled mat is formed of glass fiber claim 11 , carbon fiber claim 11 , thermoplastic fiber claim 11 , or a combination thereof.13. The process of further comprising consolidating the blended fiber mat with the veiled mat using a set of heated rollers maintained at the ...

EXTRUDER FOR PROCESSING POLYMER MELTS

An extruder containing a housing having a flow channel for a melt and a perforated plate delimiting the flow channel on the outlet side, where the perforated plate has at least two through-flow areas spaced apart from one another, each through-flow area contains at least one through-flow opening, and the perforated plate is furthermore mounted in a changing device, where the changing device has guide elements, in which the perforated plate can be moved substantially perpendicularly to the flow channel, and the extruder, directly ahead of the perforated plate when viewed in the direction of flow of the melt, has an inlet flow cone, which is structurally separate from the perforated plate, thus allowing the through-flow areas of the perforated plate to be moved relative to the inlet flow cone. 1. An extruder comprising a housing having a flow channel for a melt and a perforated plate delimiting the flow channel on the outlet side , wherein the perforated plate has at least two through-flow areas spaced apart from one another , wherein each through-flow area contains at least one through-flow opening , and the perforated plate is furthermore mounted in a changing device , wherein the changing device has guide elements , in which the perforated plate can be moved substantially perpendicularly to the flow channel ,and the extruder, directly ahead of the perforated plate, when viewed in the direction of the flow of the melt, has an inlet flow cone, which is structurally separate from the perforated plate, thus allowing the through-flow areas of the perforated plate to be moved relative to the inlet flow cone.2. The extruder as claimed in claim 1 , wherein the spacing between the through-flow areas of the perforated plate is dimensioned in such a way that claim 1 , when one through-flow area is positioned at the outlet of the flow channel claim 1 , at least one other through-flow area is situated outside the housing of the extruder.3. (canceled).4. The extruder as claimed ...

FOAMS BASED ON THERMOPLASTIC POLYURETHANES

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84. 115-. (canceled)16. A method of making a sole for an article of footwear , the method comprising:expanding thermoplastic polyurethane beads having a Shore hardness between A 44 and A 84; andfusing the expanded thermoplastic polyurethane beads to one another to form the sole.17. The method of claim 16 , wherein the sole comprises a midsole.18. The method of claim 17 , wherein the midsole consists of the expanded thermoplastic polyurethane beads.19. The method of claim 17 , wherein the expanded thermoplastic polyurethane beads form the entire midsole.20. The method of claim 16 , wherein the sole comprises an insole.21. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads form the entire sole.22. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are based on a polyether alcohol.23. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are based on a polyester alcohol.24. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a diameter between 0.2 mm and 20 mm.25. The method of claim 24 , wherein the diameter is between 0.5 mm and 15 mm.26. The method of claim 24 , wherein the diameter is between 1 mm and 12 mm.27. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are spherical.28. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are cylindrical.29. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are elongate.30. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a density between 8 g/l and 600 g/l.31. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a density between 10 g/l and 300 g/l.32. The method of claim 16 , wherein fusing the expanded thermoplastic ...

FOAMS BASED ON THERMOPLASTIC POLYURETHANES

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84. 115-. (canceled)16. A method of making a sole for an article of footwear , the method comprising:melting thermoplastic polyurethane and a blowing agent in an extruder;discharging the melted thermoplastic polyurethane and blowing agent from the extruder to form thermoplastic polyurethane beads;expanding the thermoplastic polyurethane beads; andfusing the expanded thermoplastic polyurethane beads to one another to form the sole.17. The method of claim 16 , wherein the thermoplastic polyurethane and the blowing agent are introduced into the extruder together.18. The method of claim 16 , wherein the thermoplastic polyurethane and the blowing agent are introduced into the extruder separately.19. The method of claim 16 , wherein the thermoplastic polyurethane and the blowing agent are introduced into the extruder at different locations.20. The method of claim 16 , wherein the thermoplastic polyurethane and the blowing agent are introduced into the extruder at one location.21. The method of claim 16 , wherein the extruder comprises a single-screw extruder.22. The method of claim 16 , wherein the extruder comprises a double-screw extruder.23. The method of claim 16 , wherein the extruder is operated at a temperature between 150° C. and 250° C.24. The method of claim 16 , wherein the extruder is operated at a temperature between 180° C. and 210° C.25. The method of claim 16 , wherein the blowing agent comprises a hydrocarbon.26. The method of claim 16 , wherein the blowing agent comprises between 0.1% and 40% of the total weight of the thermoplastic polyurethane.27. The method of claim 16 , wherein the sole comprises a midsole.28. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a diameter between 0.2 mm and 20 mm.29. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads ...

FOAMS BASED ON THERMOPLASTIC POLYURETHANES

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84. 115-. (canceled)16. A method of making a sole for an article of footwear , the method comprising:impregnating thermoplastic polyurethane pellets with a blowing agent in aqueous suspension under pressure to form thermoplastic polyurethane beads;depressurizing the thermoplastic polyurethane beads to allow the thermoplastic polyurethane beads to expand; andfusing the expanded thermoplastic polyurethane beads to one another to form the sole.17. The method of claim 16 , wherein the impregnating occurs at a temperature of at least 100° C.18. The method of claim 17 , wherein the temperature is between 100° C. and 150° C.19. The method of claim 17 , wherein the temperature is between 110° C. and 145° C.20. The method of claim 17 , wherein the depressurizing occurs without cooling the thermoplastic polyurethane beads.21. The method of claim 16 , wherein the impregnating occurs at a pressure between 2 bar and 100 bar.22. The method of claim 16 , wherein a time for the impregnating is between 0.5 hours and 10 hours.23. The method of claim 16 , further comprising cooling the thermoplastic polyurethane beads before the depressurizing.24. The method of claim 23 , wherein the cooling results in a temperature between 20° C. and 95° C.25. The method of claim 16 , wherein the blowing agent comprises organic liquids.26. The method of claim 16 , wherein the blowing agent comprises inorganic gases.27. The method of claim 16 , wherein the blowing agent comprises between 0.1% and 40% of the total weight of the thermoplastic polyurethane pellets.28. The method of claim 16 , wherein the sole comprises a midsole.29. The method of claim 16 , wherein the sole comprises a insole.30. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a diameter between 0.2 mm and 20 mm.31. The method of claim 16 , wherein the expanded ...

FOAMS BASED ON THERMOPLASTIC POLYURETHANES

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84. 115-. (canceled)16. A method of making a molded particle foam , the method comprising:impregnating thermoplastic polyurethane pellets with a blowing agent to form expandable thermoplastic polyurethane beads;expanding the thermoplastic polyurethane beads; andfusing the expanded thermoplastic polyurethane beads to one another in a closed mold to form a sole for an article of footwear.17. The method of claim 16 , wherein the sole comprises a midsole.18. The method of claim 17 , wherein the midsole consists of the expanded thermoplastic polyurethane beads.19. The method of claim 17 , wherein the expanded thermoplastic polyurethane beads form the entire midsole.20. The method of claim 16 , wherein the sole comprises an insole.21. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads form the entire sole.22. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are based on a polyether alcohol.23. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are based on a polyester alcohol.24. The method of claim 16 , wherein the sole comprises a density between 8 and 600 g/l.25. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a diameter between 0.2 mm and 20 mm.26. The method of claim 25 , wherein the diameter is between 0.5 mm and 15 mm.27. The method of claim 25 , wherein the diameter is between 1 mm and 12 mm.28. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are spherical.29. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are cylindrical.30. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are elongate.31. The method of claim 16 , wherein fusing the expanded thermoplastic polyurethane beads to one another in a closed sole to ...

METHOD FOR PRODUCING MOLDED ARTICLE, MOLDED ARTICLE, BACK PLATE AND BRAKE PAD

A method for producing a molded article of the present invention includes a step of preparing a pellet raw material containing a resin and raw fibers, a step of cutting the pellet raw material to obtain a plurality of pellets each containing the resin and fibers produced by cutting the raw fibers, a step of opening the fibers contained in each pellet; and a step of molding the pellets after being opened to obtain the molded article. According to the present invention, it is possible to easily produce a molded article (e.g., a back plate of a brake pad) having excellent mechanical strength. Further, According to the present invention, it is also possible to provide a molded article and a back plate each having excellent mechanical strength, and a brake pad having high reliability. 1. A method for producing a molded article , comprising:a step of preparing a pellet raw material containing a resin and raw fibers;a step of cutting the pellet raw material to obtain a plurality of pellets each containing the resin and fibers produced by cutting the raw fibers;a step of opening the fibers contained in each pellet; anda step of molding the pellets after being opened to obtain the molded article.2. The method for producing the molded article as claimed in claim 1 , wherein in the step of opening the fibers claim 1 , the fibers contained in each pellet are opened claim 1 , while heating the pellets at a temperature of 80 to 140° C.3. The method for producing the molded article as claimed in claim 1 , wherein an average length of the fibers contained in the pellets to be supplied to the step of opening the fibers is in the range of 3 to 100 mm.4. The method for producing the molded article as claimed in claim 1 , wherein when an average length of the fibers contained in the pellets to be supplied to the step of opening the fibers is defined as “1” claim 1 , an average length of the fibers contained in the pellets after being opened is in the range of 0.1 to 0.8.5. The method ...

PROCESS FOR TREATING POLYMER GRANULAR MATERIAL AND PLANT OPERATING ACCORDING TO SUCH A PROCESS

A process for treating polymer granular material () comprising the steps of heating and drying the polymer granular material in a drying hopper () by means of a drying gas, discharging a portion of the polymer granular material into an extruder (), inside which the polymer granular material is brought to a molten or semi-molten state and transported along the extruder by a rotating screw () in order to be injected into a mould () or caused to pass through an extrusion head. The process provides for measuring a control parameter which is correlated with the rotation of the screw inside the extruder and regulating the flow rate of the drying gas on the basis of the control parameter. 12. A process for treating polymer granular material () comprising:{'b': '10', 'providing the polymer granular material in a drying hopper (),'}introducing into the drying hopper a drying gas having a predefined flow rate and temperature so as to heat the polymer granular material up to a discharge temperature and to dry the polymer granular material up to a predefined residual humidity value,{'b': 100', '101', '104', '102, 'discharging a portion of the polymer granular material which is heated to the discharge temperature into a transformation unit () for the polymer material, in which the transformation unit comprises an extruder (), inside which the polymer granular material which is discharged from the hopper is brought to a molten or semi-molten state and transported along the extruder by a rotating screw () in order to be injected into a mold () or caused to pass through an extrusion head,'}measuring a control parameter which is correlated with the rotation of the screw inside the extruder andregulating the flow rate of the drying gas on the basis of said control parameter.2. The process according to claim 1 , wherein the control parameter is the torque necessary to rotate the screw inside the extruder at a predefined rotation speed.3. The process according to claim 1 , wherein the ...

Methods for Making Polyethylene Polymers

Methods for reducing gels and/or dome sheeting in gas phase polymerization processes and their resulting products are provided. The polymerization processes include polymerizing ethylene and one or more optional comonomers in a fluidized bed reactor in the presence of a metallocene catalyst, hydrogen, and at least one condensing agent. 1. A method for reducing gels in a polyethylene polymer , the method comprising:polymerizing ethylene and one or more optional comonomers in a fluidized bed reactor in the presence of a metallocene catalyst, hydrogen, and at least one condensing agent; and{'sub': '2', 'sup': 3', '3, 'controlling the content of the hydrogen and the at least one condensing agent in the fluidized bed reactor at conditions sufficient to form the polyethylene polymer having a melt index (I) of from 0.1 g/10 min to 3.0 g/10 min and a density of from 0.890 g/cmto 0.950 g/cm, wherein the conditions sufficient to form the polyethylene polymer comprise a reaction temperature of from 60° C. to 120° C. and a residence time of from 0.5 hr to 5 hours.'}2. The method of claim 1 , wherein the density of the polyethylene polymer is from 0.910 g/cmto 0.915 g/cm.3. The method of claim 1 , wherein the melt index (I) of the polyethylene polymer is from 0.5 g/10 min to 1.0 g/10 min.4. The method of claim 1 , further comprising controlling hydrogen to ethylene mole ratio in the reactor at about 3.0 to 8.0 ppm/mol % (ppm of hydrogen per mol % of ethylene).5. The method of claim 1 , further comprising increasing the hydrogen concentration if the melt index (I) decreases.6. The method of claim 1 , wherein the comonomer is hexene and the at least one condensing agent is isopentane.7. The method of claim 1 , wherein the metallocene catalyst is a hafnocene metallocene catalyst contacted with methyl alumoxane supported on silica.8. A method for reducing gels in a polyethylene polymer claim 1 , the method comprising:polymerizing ethylene and one or more optional comonomers in a ...

Centrifugal pellet dryer and dewatering assembly

A centrifugal pellet dryer having a perforated rotating basket disposed in a housing and configured to rotate. A pellet slurry conduit conveys pellet slurry to be dried. A water baffle is coupled to a seal assembly to form a water chamber. A variable speed AC motor causes the basket to rotate.

METHOD FOR PRODUCING A CREEP RESISTANT MATERIAL

Embodiments of the invention relate to processes for the production of a creep-resistant material. One of the processes provides the following: provision of a metal powder; provision of metallic or ceramic nanoparticles; mixing of the metal powder with the nanoparticles, where during the mixing procedure the particles of the metal powder and the nanoparticles neither change their size nor change their shape; and consolidation of the mixture of metal powder and of nanoparticles to form a material with a polycrystalline metal structure, where the individual grains which have resulted from the consolidation and which are part of the polycrystalline metal structure have been produced from the particles of the metal powder and are separated from one another by grain boundaries, and where the arrangement has the nanoparticles at the grain boundaries. 1. A process for the production of a creep-resistant material with the following steps:provision of a metal powder,provision of metallic or ceramic nanoparticles,mixing of the metal powder with the nanoparticles, where during the mixing procedure the particles of the metal powder and the nanoparticles neither change their size nor change their shape, andconsolidation of the mixture of metal powder and of nanoparticles to form a material with a polycrystalline metal structure, wherethe individual grains which have resulted from the consolidation and which are part of the polycrystalline metal structure have been produced from the particles of the metal powder and are separated from one another by grain boundaries, and where the arrangement has the nanoparticles at the grain boundaries.2. The process as claimed in claim 1 , wherein the mixing of the metal powder with the nanoparticles is achieved via grinding in a mill claim 1 , where the nanoparticles arrange themselves at the surfaces of the particles of the metal powder during the mixing procedure claim 1 , and where the grinding time claim 1 , the nature of the mill and the ...

Method for the Production of Polyester Granulates From Highly Viscous Polyester Melts and Also Device for the Production of the Polyester Granulates

The invention relates to a method and device for the direct production of polyester granulate from a highly viscous polyester melt with a polymerisation degree of 132 to 165, as well as the granulates formed thereform. In the method, the highly viscous polyester melt is subjected to a pre-drying and drying/degassing after a hot cutting method. Hot cutting is implemented at water temperatures of 70° C. to 95° C. and with a liquid to solid ratio of 8 to 12:1. 1. Method for the direct production of polyester granulate from a highly viscous polyester melt (hiV) with a polymerisation degree (PG) of 132 to 165 , in which the hiV melt is subjected to a pre-drying and drying/degassing after a hot cutting method , characterised in that the cutting phase in the hot cutting method is effected at water temperatures of 70 to 95° C. and a liquid to solid ratio of 8 to 12:1 is maintained.2. Method according to claim 1 , characterised in that a dwell time in the water of the hot cutting until entry into the pre-drying of <1 second is maintained.3. Method according to claim 1 , characterised in that the liquor is maintained in its entirety until entry into the pre-drying.4. Method according to claim 1 , characterised in that claim 1 , during the pre-drying in the upper fifth of the pre-dryer claim 1 , 99% of the circulating water is separated within <10 seconds.5. Method according to claim 1 , characterised in that claim 1 , during the pre-drying in the pre-dryer claim 1 , a crystallisation degree of at least 5% is achieved so that the agglomeration of granulates is prevented.6. Method according to claim 1 , characterised in that an outlet moisture of the granulate from the pre-drying of <200 ppm is achieved.7. Method according to claim 1 , characterised in that the dew point during pre-drying in the pre-dryer is controlled to 8 to 12° C. by means of a quantity of purging air from a subsequently connected collecting container.8. Method according to claim 7 , characterised in that a ...

METHOD FOR IMPREGNATING POLYMER GRANULATES

The invention relates to a method for impregnating a polymer granulate with a predefined mass of a gaseous propellant. According to the invention, the polymer granulate is arranged inside a pressure vessel and a gaseous propellant is introduced into the inside of the pressure vessel. 1110. A method for impregnating a polymer granulate () with a predefined mass of a gaseous propellant , wherein{'b': 110', '100, 'the polymer granulate () is arranged in an inside of a pressure vessel (),'}{'b': 100', '110, 'sub': '2', 'a gaseous propellant is initially introduced into the inside of the pressure vessel (), propellant being absorbed by the polymer granulate (), and a current pressure (p) prevailing in the inside being measured,'}{'sub': 1', '2, 'wherein a current mass (Δm) of the propellant absorbed by the polymer granulate is determined as the difference between the mass (m) of the total propellant initially introduced into the inside of the pressure vessel and the mass (m) of a non-absorbed part of the propellant currently located in the inside, and wherein the method is discontinued when the current mass (Δm) of the absorbed propellant is greater than or equal to the predefined mass.'}2100. The method according to claim 1 , wherein a current temperature (T) in the inside of the pressure vessel () is measured.3. The method according to claim 1 , wherein the current mass (Δm) is determined by means of a programmable logic controller.5. A method for impregnating a polymer granulate with a predefined mass of a gaseous propellant claim 1 , wherein{'b': 110', '100, 'the polymer granulate () is arranged in an inside of a pressure vessel (),'}{'b': 100', '110', '100, 'sub': 1', 'a, 'a gaseous propellant is initially introduced into the inside of the pressure vessel () so that propellant is absorbed by the polymer granulate (), and wherein propellant is subsequently added to the inside of the pressure vessel (), wherein the masses of the initially (m) and subsequently ...

Resin powder for solid freeform fabrication, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object

A resin powder for solid freeform fabrication includes a particle having a pillar-like form, wherein the ratio of the height of the particle to the diameter or the long side of the bottom of the particle is 0.5 to 2.0, the particle has a 50 percent cumulative volume particle diameter of from 5 to 200 μm, and the ratio (Mv/Mn) of the volume average particle diameter (Mv) to the number average particle diameter (Mn) of the particle is 2.00 or less.

Process for obtaining low volatile plastomers

Process for reducing the volatile organic compound content of plastomer having a density of equal to or lower than 883 kg/m3 and—a MFR2 of 100.0 g/l 0 min or lower (ISO 1133 at 2.16 kg load and 190° C.); to below 65 ppm(VOC, VDA277), the process comprising the steps of a) providing raw plastomer in granular form, the raw plastomer having a density of equal to or lower than 883 kg/m3; and a MFR2 of 100.0 g/10 min or lower (ISO 1133 at 2.16 kg load and 190° C.); and a volatile organic compound content (VOC, VDA277) of above 150 ppm, and the granules having an average D50 diameter of 2.5 to 4.5 mm b) subjecting said granular raw plastomer to at least one intensive hydrodynamic regime at a minimum temperature of at least 20° C. and a maximum temperature of 4° C. below the Vicat temperature (10 N, ISO 306) of the granular raw plastomer or 35° C., whatever value is lower, with the temperature measured at the gas inlet to the fast-fluidization regime, c) recovering the granular plastomer.

METHOD FOR PREPARING TOBRAMYCIN SULFATE POWDER

A method for preparing tobramycin sulfate powder for injection is provided. The method includes steps of providing a sterile tobramycin sulfate solution; and aseptically spray drying the tobramycin sulfate solution to obtain the tobramycin sulfate powder. 1. A method for preparing tobramycin sulfate powder for injection , comprising steps of:providing a sterile tobramycin sulfate solution; andaseptically spray drying the sterile tobramycin sulfate solution to obtain the tobramycin sulfate powder.2. The method according to claim 1 , wherein the sterile tobramycin sulfate solution is obtained by the steps of:dissolving tobramycin powder in water to obtain a tobramycin solution;mixing the tobramycin solution and a sulfuric acid solution to form the tobramycin sulfate solution; andaseptically filtrating the tobramycin sulfate solution by a membrane filter.3. The method according to claim 2 , wherein the tobramycin powder is made of tobramycin hydrate or tobramycin anhydrate.4. The method according to claim 2 , wherein the sulfuric acid solution and the tobramycin solution are mixed with a molar ratio of sulfuric acid to tobramycin in a range from 1.10 to 2.50.5. The method according to claim 2 , wherein the tobramycin sulfate solution has a concentration in a range from 4 wt % to 40 wt %.6. The method according to claim 5 , wherein the tobramycin sulfate solution has the concentration in a range from 6 wt % to 30 wt %.7. The method according to claim 2 , wherein the tobramycin sulfate solution has a temperature in a range from 5° C. to 40° C.8. The method according to claim 1 , wherein the step of aseptically spray drying the tobramycin sulfate solution is performed at an inlet temperature of drying gas in a range from 80° C. to 240° C.9. The method according to claim 1 , wherein the step of aseptically spray drying the tobramycin sulfate solution is performed with a drying gas selected from air claim 1 , nitrogen claim 1 , and inert gas.10. The method according to ...

PACING LEADS WITH ULTRATHIN ISOLATION LAYER BY ATOMIC LAYER DEPOSITION

An implantable medical lead includes a substrate extending from a distal end to a proximal end of the medical lead. The substrate includes at least one polymer material and particles dispersed throughout the polymer material. In one embodiment, the particles are of at least one of nanoclay material and nanodiamond material. 1. An implantable medical lead comprising:a substrate extending from a distal end to a proximal end of the medical lead, the substrate comprising at least one polymer material and particles of at least one of nanoclay material and nanodiamond material dispersed throughout the polymer material.2. The implantable medical lead of claim 1 , wherein the at least one of nanoclay material and nanodiamond material is homogenously dispersed throughout the polymer material.3. The implantable medical lead of claim 1 , and further comprising a ceramic material dispersed throughout the polymer material.4. The implantable medical lead of claim 1 , wherein the polymer material includes at least one member selected from the group consisting of polyamide polymers claim 1 , polyimide polymers claim 1 , polyurethanes and silicones.5. The implantable medical lead of claim 1 , wherein the nanodiamond material includes diamond particles having a crystal size between about 1 nm and about 100 nm.6. The implantable medical lead of claim 1 , wherein the nanoclay material includes platelets claim 1 , wherein each platelet has a thickness of about 1 nm and a surface dimension of between about 300 nm and 600 nm.7. The implantable medical lead of claim 1 , wherein the nanoclay material includes montmorillonite clay reacted with a quaternary ammonium compound.8. The implantable medical lead of and further comprising a ceramic layer on the substrate.9. A method of forming an implantable medical lead claim 1 , the method comprising:compounding a polymer material with at least one of nanoclay material and nanodiamond material to form a mixed material; andextruding the mixed ...

Method for Producing Shaped Polymeric Microparticles

Method for producing shaped polymeric microparticles of non-spherical shape, comprising the steps of: placing one or more microparticles of substantially spherical shape in a respective micro-cavity of a mould having the desired non-spherical shape; subjecting said microparticles to softening by exposure to a solvent or mixture of solvent/non-solvent, in the liquid or vapour state, adapted to plasticize the polymeric material constituting said microparticles, and possibly assisting the solvent plasticization process by heat treatment, not excluding the possibility, in less critical cases in terms of conservation of the microstructure, of carrying out heat treatment exclusively, at a temperature not exceeding 40% of the glass transition temperature of the polymer material; and removing said microparticles from the mould cavities. 1. Method for producing shaped polymeric microparticles of non-spherical shape , characterized in that it comprises the steps of:providing microparticles in a substantially spherical shape;placing one or more of said polymeric microparticles in a respective micro-cavity of a mould having the desired non-spherical shape;subjecting said microparticles to softening by exposure to a solvent or mixture of solvent and non-solvent, in the liquid or vapour state, adapted to plasticize the polymeric material constituting said microparticles, and optionally assisting the solvent plasticization process by heating to a temperature preferably below 60° C. and more preferably below 40° C. or exclusively by heat treatment at a temperature not exceeding 40% above the glass transition temperature; andremoving said microparticles shaped in this way from the mould cavities.2. Method according to claim 1 , characterized in that it comprises the step of subjecting said microparticles claim 1 , which have been subjected to softening claim 1 , to a pressure in the respective mould cavities prior to removal from said mould cavity.3. Method according to claim 1 , ...

Device For Purifying A Process Fluid And Dehumidifying Plant Including Such A Device

A purifying device for purifying a process fluid that flows in a dehumidifying plant for dehumidifying plastics includes a first layer configured for filtering the process fluid, and a second layer configured for reducing, by adsorption, substances that are harmful for health, in particular COV/SOV, which are present in the process fluid. 1. A device for purifying a process fluid that flows in a dehumidifying plant for dehumidifying plastics in granular and/or microgranular and/or powder and/or flake or similar form intended to supply one or more user machines , in particular machines for treating and transforming plastics , such as machines for extruding , and subsequently injection and/or blow and/or compression moulding , such plastics , wherein said purifying device comprises a first layer configured for filtering said process fluid ,said purifying device is characterized in thatit comprises a second layer configured for reducing, by adsorption, substances that are harmful for health, in particular COV/SOV, which are present in said process fluid.2. The device according to claim 1 , wherein said purifying device is configured in such a manner that a flow of process fluid to be purified enters said purifying device radially and exits axially claim 1 , purified claim 1 , from said purifying device.3. The device according to claim 1 , wherein said purifying device has a symmetric axial shape claim 1 , with a dimension that is predominant with respect to the others claim 1 , in particular it has a cylindrical shape.4. The device according to claim 1 , wherein said first layer and said second layer are parts of a body of said purifying device claim 1 , said first layer being positioned more externally with respect to said second layer with respect to an advancement direction of said flow of process fluid.5. The device according to claim 1 , wherein said first layer is made of a filtering material claim 1 , in particular paper and/or polyester and/or microfibres and/ ...

Thermally Conductive Ceramic-Polymer Composite and Method of Preparing the Same

Provided are a thermally conductive ceramic-polymer composite in which thermoplastic polymers form a matrix, and planar fragments of thermally conductive ceramic or thermally conductive ceramic powder is uniformly dispersed on a grain boundary between thermoplastic polymer particles, thereby forming a thermal pathway, wherein the thermoplastic polymer particles are formed in a faceted shape, and the average size of the planar fragments of thermally conductive ceramic or thermally conductive ceramic powder is smaller than 1/10 of that of the thermoplastic polymer particles, and a method of preparing the same. Accordingly, since dispersion and interfacial affinity of a thermally conductive ceramic filler are maximized, excellent electrical insulation and excellent thermal conductivity can be exhibited even with a small content of the thermally conductive ceramic filler. 1. A thermally conductive ceramic-polymer composite , in which thermoplastic polymers form a matrix , andplanar fragments of thermally conductive ceramic or thermally conductive ceramic powder is dispersed on a grain boundary between thermoplastic polymer particles, thereby forming a thermal pathway,wherein the thermoplastic polymer particles are formed in a faceted shape, andthe average size of the planar fragments of thermally conductive ceramic or thermally conductive ceramic powder is smaller than 1/10 of that of the thermoplastic polymer particles.2. The thermally conductive ceramic-polymer composite of claim 1 , wherein the planar fragments of thermally conductive ceramic or thermally conductive ceramic powder is surface-treated with a coupling agent claim 1 , thereby forming chemical bonds with the thermoplastic polymer particles claim 1 , andconsists of one or more materials selected from boron nitride, aluminum nitride, magnesium oxide, aluminum oxide, silicon carbide and silicon nitride.3. The thermally conductive ceramic-polymer composite of claim 1 , wherein the thermoplastic polymer is one ...

Method of Manufacturing a High Performance Polymer and Nanotube Composite

A method of manufacturing a high performance polymer and nanotube composite is used to produce a nylon resin polymer with favorable material properties over traditional resin polymers. A plurality of tungsten sulfide nanotubes is combined with a plurality of nylon resin pellets which are ground up into a nylon resin powder. A heterogeneous mixture of the nylon resin powder and the plurality of tungsten nanotube is heated within a plastic extrusion machine such that the nylon resin powder melts and envelopes the plurality of tungsten sulfide nanotubes. With the plurality of tungsten sulfide nanotubes suspended in the fluid nylon resin, the heterogeneous mixture is extruded from the plastic extrusion machine as a pultrusion. The pultrusion is segmented into a plurality of polymer composites as the plutrusion solidifies from cooling for various materials applications.

SYSTEMS AND METHODS FOR SELF-ALIGNING CUTTING HUB ASSEMBLY

A system that enables a cutter head to pivot for improved alignment with a cutting face or die is disclosed. The system includes a cutter hub and a driveshaft hub mated with a plurality of round, spherical, or ovoid surfaces to enable the cutter hub to pivot with respect to the driveshaft hub. The system can include a plurality of alignment pins with spherical surfaces to transfer torque from the driveshaft hub to the cutter hub. The system can also include a cutter head, which can include a plurality of cutting blades. The system can be used in cutting machinery, such as a pelletizer, where alignment of the cutting head and the cutting die (or other cutting surface) is desirable. 1. A system comprising: a first plurality of alignment holes disposed on the first side; and', 'a concave surface disposed on the first side;, 'a driveshaft adapter with a first side and a second side and comprising a second plurality of alignment holes disposed on the second side; and', 'a convex surface disposed on the second side; and, 'a cutter adapter with a first side and a second side and comprisinga plurality of alignment pins each with a first end and a second end, each of the first ends comprising a rounded surface sized and shaped to be in slideable engagement with one or more of the first and second plurality of alignment holes;wherein the cutter adapter can pivot on the convex surface, concave surface, and the rounded surfaces on the plurality of alignment pins to align the cutter adapter with a die face.2. The system of claim 1 , further comprising:a concave surface disposed on the first side of the cutter adapter;a plug adapter comprising a convex surface sized and shaped to be in slideable engagement with the concave surface on the first side of the cutter adapter, the plug adapter further configured to be in engagement with the driveshaft adapter.3. The system of claim 2 , wherein one or more of the concave surface of the driveshaft adapter claim 2 , the convex surface of ...

CONTINUOUS PELLETIZING, DRYING AND BAGGING SYSTEMS WITH IMPROVED THROUGHPUT

The various embodiments of the present invention are directed to improved processes and systems for continuously bagging materials. In particular, the improved processes and systems can be used to bag tacky materials with improved throughput. The systems generally include at least one of a feeding section, mixing section, pelletizing section, transport piping, agglomerate catcher, defluidizing section, drying section, pellet diverter valve, and/or bagging assembly. 1. A system for continuously bagging tacky materials , the system comprising:a feeding section configured to receive a material, wherein the feeding section is optionally thermally controlled;a mixing section configured to receive the material from the feeding section and mix, melt, and/or blend the material, wherein the mixing section comprises a die; a cutter hub comprising a blade angle of less than about 90 degrees; and', 'a transport fluid box comprising an inlet and an outlet to reduce a velocity of transport fluid into and through the transport fluid box, wherein the outlet reduces any obstruction of pellets leaving the transport fluid box by providing an open area;, 'a pelletizing section configured to receive the material from the mixing section and pelletize the material, wherein the pelletizing section comprisesa system of non-linear transport piping downstream of the transport fluid box;an agglomerate catcher downstream of the pelletizing section, wherein the agglomerate catcher comprises an angled agglomerate removal grid, and wherein the non-linear transport piping is configured to allow transport of the material from the pelletizing section to the agglomerate catcher;a defluidizing section downstream of the agglomerate catcher, wherein the defluidizing section comprises a pellet feed chute;a drying section configured to receive the material from the defluidizing section and dry the pelletized material, wherein the drying section comprises a dryer having at least one circumferential screen ...

METHOD FOR THE DENSIFICATION AND SPHEROIDIZATION OF SOLID AND SOLUTION PRECURSOR DROPLETS OF MATERIALS USING MICROWAVE GENERATED PLASMA PROCESSING

A method for processing feed material to produce dense and spheroidal products is described. The feed material is comprised of powder particles from the spray-drying technique or solution precursor droplets from ceramic or metallic materials. The feed material is processed using plasma generated from a microwave. The microwave plasma torch employed is capable of generating laminar flow during processing which allows for the production of spheroidal particles with a homogenous materials distribution. This results in products having improved thermal properties, improved corrosion and wear resistance and a higher tolerance to interface stresses. 1. A method of producing spheroidal and dense powder products which comprises:a) introducing feed material through a materials feeder into a microwave plasma torch;b) entraining said feed material using laminar flow towards a microwave generated plasma;c) processing said feed material by exposing it to a uniform temperature profile within the microwave generated plasma;d) quenching plasma exhaust of said microwave generated plasma;e) filtering the exhaust gas of said microwave generated plasma; andf) extracting powder products from said filtered exhaust gas.2. The method of wherein said feed material is a powder with a substantially non-spherical shape.3. The method of wherein said feed material is a homogenous solution or a suspension of solution precursors injected as droplets.4. The method of wherein the microwave plasma torch is an axissymmetric microwave plasma torch and said feed material is introduced along the central axis of said axissymmetric microwave plasma torch.5. The method of wherein said materials feeder uses a fluidized bed.6. The method of wherein the materials feeder is a nebulizing atomizer which produces a mist of droplets having a diameter size ranging between 0.5 micrometers and 200 micrometers.7. The method of wherein the materials feeder is a droplet maker which uses a piezo electric transducer that ...

RECONSTITUTED COMPOSITE MATERIALS DERIVED FROM WASTE MADE BY SOLID STATE PULVERIZATION

A method of making polymeric composite particles from polymeric scrap material, virgin polymeric material, or mixtures thereof and glass particles by subjecting a mixture of the polymeric particles and glass particles to a solid state shear pulverization and in-situ polymer compatibilization. 1. A method for preparing reconstituted composite particles , comprising the steps of:a) providing a mixture of polymer material and glass material;b) effecting a chemical change to said mixture by application of mechanical energy thereto through solid state shear pulverization in the presence of cooling sufficient to maintain said mixture in the solid state during said pulverization to form reconstituted composite particles; andc) discharging said composite particles.2. A method for manufacturing of a powder of reconstituted composite material from a supply of polymeric material and glass material , comprising the steps of:a) providing a mixture of polymeric material and glass material to form a composite mixture;b) introducing said composite mixture into a pulverization device having an inlet for said composite mixture, means for pulverizing said composite mixture to effect chemical change by means of solid state shear pulverization in the presence of cooling sufficient to maintain solely in the solid state during the pulverization, an outlet for said pulverized composite material, and means for cooling the temperature of said composite material between said inlet and outlet;c) cooling said composite material to maintain said composite material in the solid state without melting within the pulverization device;d) pulverizing said solid state composite material within the pulverization device to chemically alter said composite material; ande) discharging said resulting composite pulverized powder from said outlet.3. A product produced by the method of .4. The method of claim 1 , wherein the solid state shear pulverization is effected by a co-rotating screw pulverizer.5. The ...

Powder paint composition and method for preparing same

Disclosed is a powder paint composition of and a method for preparing the same. More particularly, the present invention relates to a powder paint composition including a powder paint prepared by physically attaching metallic particles to a powder resin, which exhibits no separation or aggregation of metallic particles when coated and significantly improves metallic texture owing to orientation of the metallic particles, and a method for preparing the same.

METHODS OF FORMING NANOPARTICLES USING SEMICONDUCTOR MANUFACTURING INFRASTRUCTURE

A method of preparing particles comprises forming by optical lithography a topographic template layer disposed on a surface of a substrate, which is suitable for spin casting. The template layer comprises a non-crosslinked template polymer having a pattern of independent wells therein for molding independent particles. Spin casting a particle-forming composition onto the template layer forms a composite layer comprising the template polymer and the particles disposed in the wells. The composite layer is removed from the substrate using a stripping agent that dissolves the template polymer without dissolving the particles. The particles are then isolated. 1. A method , comprising:forming by optical lithography a topographic template layer disposed on a surface of a substrate, wherein i) the substrate is suitable for spin casting and ii) the template layer comprises a non-crosslinked template polymer having a pattern of independent wells therein for molding independent particles;spin casting a particle-forming composition onto the template layer, thereby forming a composite layer comprising the template polymer and the particles disposed in the wells;removing the composite layer from the substrate using a stripping agent that dissolves the template polymer without dissolving the particles; andisolating the particles.2. The method of claim 1 , wherein the spin casted composition comprises a casting solvent and the casting solvent is removed from the spin casted composition claim 1 , thereby forming the particles disposed in the wells.3. The method of claim 1 , wherein the particles are treated photochemically claim 1 , thermally claim 1 , and/or chemically before removing the composite layer from the substrate.4. The method of claim 1 , wherein the substrate comprises a release layer claim 1 , and the template layer is disposed on a surface of the release layer.5. The method of claim 4 , wherein the release layer comprises silicon claim 4 , and the release layer is ...

METHOD FOR MANUFACTURING MOLDED ARTICLE USING FOOD WASTE

The present invention relates to a method for manufacturing a molded article using food waste, in which food waste is dried, fractioned and ground, after which the processed food waste is mixed with purified water, a preservative, an aromatic agent and a binding agent comprising a food additive, and the mixture is poured into a fixing mold to be compression-molded into various shapes, e.g., cubes. The molded article can substitute for soaps which have been conventionally used for practicing carving so as to prevent resource waste and environmental contamination. The method for manufacturing a molded article using food waste enables a minimal addition of chemicals during molding so as to provide practice materials which are not harmful to the human body. Another purpose of the present invention is to provide a method for manufacturing a molded article using food waste, in which cubes are manufactured by using food waste, the cubes are combined to form a big cube, and small cubes are sequentially removed from a big cube consisting of small cubes, thereby enabling a model to be modified at the users convenience. 1. A method for manufacturing a molded article using food waste , comprising:{'b': '1', '(s) a step wherein food waste is collected;'}{'b': '2', '(s) a step wherein with respect to 1 g of the food waste, 0.01 to 0.5 g of deodorizing agent, 0.01 to 0.5 g of sterilizing agent and 0.01 to 0.5 g of natural antiseptic are added;'}{'b': '3', '(s) a step wherein the mixture is dried using a drier of above 15° C. and a heating film;'}{'b': '4', '(s) a step wherein the particles of the food waste are sorted out to remove impurities;'}{'b': '5', '(s) a step wherein the sorted particles are crushed into sizes of 0.01 mm to 1 mm;'}{'b': '6', '(s) a first mixing step wherein a binding agent containing a food additive is mixed and pasted with the crushed powder;'}{'b': '7', '(s) a second mixing step wherein purified water and an aromatic agent are mixed and pasted with the ...

Process for obtaining low volatile plastomers

A process for reducing the volatile organic compound content of granular plastomers having a density of equal to or lower than 883 kg/m3 and a MFR2 of 100.0 g/10 min or lower (ISO 1133 at 2.16 kg load and 190° C.), to below 65 ppm (VOC, VDA277), the process comprising the steps of providing a granular raw plastomer in a treatment vessel, the granular raw plastomer having a density of equal to or lower than 883 kg/m3, and a MFR2 of 100.0 g/10 min or lower (ISO 1133 at 2.16 kg load and 190° C.), and a volatile organic compound content (VOC, VDA277) of above 150 ppm, subjecting said granular raw plastomer to a gasflow within the range of 30 m3/(h t) to 150 m3/(h t) for an aeration time of less than 96 hours, whereby the gas has a minimum temperature of at least 26° C. measured at a gas inlet of the treatment vessel and a maximum temperature of 4° C. below the Vicat temperature (10 N, ISO 306) of the granular raw plastomer or 35° C. measured at the gas inlet of the treatment vessel, whatever value is lower; and recovering the granular plastomer.

Optical absorbing thermoplastic polymer particles and methods of production and uses thereof

Optical absorber-containing thermoplastic polymer particles (OACTP particles) may be produced by methods that comprise: mixing a mixture comprising a thermoplastic polymer, a carrier fluid that is immiscible with the thermoplastic polymer, and optionally an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the thermoplastic polymer and at a shear rate sufficiently high to disperse the thermoplastic polymer in the carrier fluid; cooling the mixture to below the melting point or softening temperature of the thermoplastic polymer to form solidified particles comprising the thermoplastic polymer; separating the solidified particles from the carrier fluid; and exposing the solidified particles to an optical absorber to produce the OACTP particles.

Polyamide Particles and Methods of Production and Uses Thereof

A method for producing polyamide particles may include: mixing a mixture comprising a polyamide, a carrier fluid that is immiscible with the polyamide, and nanoparticles at a temperature greater than a melting point or softening temperature of the polyamide and at a shear rate sufficiently high to disperse the polyamide in the carrier fluid; cooling the mixture to below the melting point or softening temperature of the polyamide to form solidified particles comprising polyamide particles having a circularity of 0.90 or greater and that comprise the polyamide and the nanoparticles associated with an outer surface of the polyamide particles; and separating the solidified particles from the carrier fluid. 1. A composition comprising:particles comprising polyamide particles having a circularity of 0.90 or greater and that comprise a polyamide and nanoparticles associated with an outer surface of the polyamide particles.2. The composition of claim 1 , wherein at least some of the nanoparticles are embedded in the outer surface of the particles.3. The composition of claim 1 , wherein the polyamide is present at 90 wt % to 99.5 wt % of the particles.4. The composition of claim 1 , wherein at least some of the polyamide particles have a void therein comprising the nanoparticles at a void/polyamide interface.5. The composition of claim 4 , wherein the nanoparticles are embedded in the void/polyamide interface.6. The composition of claim 4 , wherein the void contains a carrier fluid having a viscosity at 25° C. of 1 claim 4 ,000 cSt to 150 claim 4 ,000 cSt.7. The composition of claim 1 , wherein the particles further comprise elongated structures that comprise the polyamide with the nanoparticles associated with an outer surface of the elongated structures.8. The composition of claim 1 , wherein the polyamide is selected from the group consisting of: polycaproamide claim 1 , poly(hexamethylene succinamide) claim 1 , polyhexamethylene adipamide claim 1 , polypentamethylene ...

Systems and methods for drying pellets and other materials

Systems and methods for manufacturing pellets are disclosed herein. The systems and methods can include improved drying systems and techniques. In some embodiments, for example, the systems and methods can make use of one or more vacuum dryers and various other improvements related thereto.

DRYER SYSTEM WITH IMPROVED THROUGHPUT

A centrifugal dryer that has improved throughput capacity resulting from the combination of a high angle agglomerate catcher with optional overflow, increased dewatering capacity, a cylindrical dewatering feed chute, a modified rotor design with positionally and structurally modified lifters in the feed and dewatering section, the drying and propagating section, as well as the pellet discharge section, and an efficient circumferential foraminous membrane. 1. A dryer system for removing surface moisture from particulate comprising:a dryer comprising a rotor assembly, the rotor assembly comprising a plurality of lifting blades for lifting particulate through the system, the particulate generally drying as it is lifted through the system;wherein the rotor assembly comprises at least two sections, a lower, wet particulate feed section into which the particulate enters the dryer, and a drying section located above the wet particulate feed section; andwherein the lifting blades of the lower, wet particulate feed section have a blade angle of less than 45° defined by the inclination of the trailing edge of a blade above that of a plane drawn horizontally through the leading edge of a blade.2. The dryer system of claim 1 , wherein a lowermost lifting blade of the lifting blades has a tilt angle of from 0° to +40° claim 1 , and another lifting blade of the lifting blades has a tilt angle of from 0° to ±20° claim 1 , the tilt angles being defined as the angle of a blade from the outside edge to that of a plane drawn through the attached edge.3. The dryer system of claim 1 , wherein the blade angle of the lifting blades of the lower claim 1 , wet particulate feed section is 35° or less defined by an angle of inclination of the trailing edge of a blade above that of a plane drawn horizontally through the leading edge of a blade.4. The dryer system of claim 1 , wherein at least a portion of the lifting blades of the lower claim 1 , wet particulate feed section form at least one ...

SCENTED MATERIAL COMPOSITIONS AND ARTICLES FOR USE WITH FOOD AND BEVERAGE

Disclosed are scented material compositions, articles and methods of their manufacture. In some aspects, a scented attachment for a beverage container includes a scented article including a body loaded with a volatile chemical compound to emanate from the body of the scented article to generate a scent, in which the scented article includes at least one interior protruding structure that projects from an interior wall of the body of the scented article and is configured to attach to a bottle and be enclosed by a cap and the bottle when the cap is securely fastened to the bottle, such that the scent from the scented attachment is trapped when the cap is securely attached to the bottle and releases into an outer environment when the cap is detached from the bottle, in which the scented article comprises a scented material formed of a fragrance oil and a plastic base material. 124.-. (canceled)25. A scented attachment for a beverage container , comprising:a scented article having a body that comprises a scented material including a plastic material loaded with a volatile chemical compound to emanate from the body of the scented article to generate a scent, wherein the scented article is configured to attach to a drinking container containing a beverage,wherein the scented material is formulated with a fragrance oil that includes a carrier compound and a scented chemical compound, wherein the carrier compound includes medium chain triglyceride (MCT) and Triacetin (1,2,3-triacetoxypropane).26. The scented attachment of claim 25 , wherein the fragrance oil includes a % wt of MCT in a range of 50-80% wt claim 25 , a % wt of Triacetin in a range of 15-25% wt claim 25 , and a % wt of the scented chemical compound in a range of 1-30% wt.27. The scented attachment of claim 25 , wherein the beverage container includes a cap claim 25 , and the scented article is configured to be enclosed by a cap and the drinking container when the cap is securely fastened to the drinking ...

PROCESS FOR ROCKWOOL DERIVATIVE BRIQUETTES

A process for reusing rockwool production by-product into marketable bricks is disclosed. The process includes, in a brick forming facility, sequentially dumping incoming rockwool production by-product in a mixing bunker in a first direction, acquiring the rockwool production by-product from the mixing bunker in a second direction, and forming bricks with the mixed rockwool production by-product. Acquiring the rockwool production by-product in the second direction mixes the rockwool production by-product from two non-sequential dumps. 1. A process for reusing rockwool production by-product , the process comprising:in a brick forming facility, sequentially dumping incoming rockwool production by-product in a mixing bunker in a first direction;acquiring the rockwool production by-product from the mixing bunker in a second direction, wherein the acquiring mixes the rockwool production by-product from two non-sequential dumps; andforming bricks with the mixed rockwool production by-product.2. The process of claim 1 , wherein the rockwool production by-product comprises rockwool waste comprising shot.3. The process of claim 2 , wherein the brick forming facility is located proximately to a rockwool production facility.4. The process of claim 2 , wherein sequentially dumping the incoming rockwool waste comprises dumping the rockwool waste sequentially in a first column; andupon completion of the first column, dumping the rockwool waste sequentially in a second column located next to the first column.5. The process of claim 2 , wherein sequentially dumping the incoming rockwool waste comprises dumping the rockwool waste sequentially in a first column; andsubsequent to completion of the first column, dumping the rockwool waste sequentially in a plurality of successive columns located next to the first column.6. The process of claim 2 , wherein acquiring the rockwool waste from the mixing bunker in the second direction comprises acquiring the rockwool waste in the second ...

EXTRUSION HEAD HAVING A PERFORATED PLATE OF A GRANULATING SYSTEM

An extrusion head having a perforated plate of a granulating system. The extrusion head can have a head part and a perforated plate with a perforated-plate wear insert, a perforated-plate main body, a central inflow cone, an inflow cone part, a plurality of nozzle channels, a plurality of perforated dies, and at least one corrosion protected fastener. The perforated-plate can be detachably fastened to the head part. The head part can have at least one central melt channel into which the inflow cone part projects and distributes a melt flow among nozzle channels which can be arranged in the shape of a ring and among the perforated dies which can be arranged in at least one ring. The at least one fastener can be positioned in a central region of the at least one ring of the perforated dies. 1. An extrusion head having a perforated plate of a granulating system , wherein the extrusion head comprises:a) a head part; i) a perforated-plate wear insert;', 'ii) a perforated-plate main body;', 'iii) a central inflow cone;', 'iv) an inflow cone part;', 'v) a plurality of perforated dies;', 'vi) a plurality of nozzle channels arranged in the shape of at least one ring and among the plurality of perforated dies; and', 'vii) at least one corrosion-protected fastener, wherein the at least one corrosion-protected fastener is positioned in a central region of the at least one ring; and, 'b) a perforated plate detachably fastened to the head part, wherein the perforated plate comprisesc) at least one central melt channel located on the head part into which the central inflow cone projects and distributes a melt flow among the plurality of nozzle channels.2. The extrusion head of claim 1 , wherein in each perforated die of the plurality of perforated dies is located in the perforated-plate wear insert.3. The extrusion head of claim 1 , wherein the perforated-plate main body comprises nozzle channels whose ends on the downstream side are in operative connection with the perforated ...

Conductive High Strength Extrudable Ultra High Molecular Weight Polymer Graphene Oxide Composite

The present invention includes an injection moldable/extrudable composite that preserves at least 80% or enhances the primary physical properties of compression molded polymer, the composite comprising, e.g., an Ultra High Molecular Weight Polyethylene (UHMWPE) and graphene/graphite oxide or graphene oxide, with or without polypropylene. 1. An injection moldable/extrudable composite that preserves at least 80% or enhances the primary physical properties of compression molded polymer , the composite comprising a non-extrudable or poorly-extrudable polymer and graphene/graphite oxide or graphene oxide.2. The composite of claim 1 , wherein the non-extrudable or poorly-extrudable polymer is selected from olefin fibers claim 1 , Ultra High Molecular Weight Polyethylene (UHMWPE) claim 1 , cross-linked polyethylene (PEX) claim 1 , high-density polyethylene (HDPE) claim 1 , polypropylene claim 1 , linear low-density polyethylene (LLDPE) claim 1 , low-density polyethylene (LDPE) claim 1 , medium-density polyethylene (MDPE) claim 1 , para-aramid fibers claim 1 , and/or polyoxazole fibers.3. The composite of claim 2 , wherein the physical properties of a compression molded UHMWPE claim 2 , and a resistivity less than 1011 Ohm-cm.4. The composite of claim 2 , wherein the UHMWPE has a molecular weight between 500 claim 2 ,000 and 16 claim 2 ,000 claim 2 ,000 Daltons or between 2 claim 2 ,000 claim 2 ,000 and 8 claim 2 ,000 claim 2 ,000 Daltons.5. The composite of claim 1 , wherein the composite has a graphene oxide is 0.1 wt % claim 1 , 0.5 wt % claim 1 , 1.0 wt % claim 1 , 1.25 wt % claim 1 , 1.5 wt % claim 1 , 1.75 wt % claim 1 , 2.0 wt % claim 1 , 2.25 w % claim 1 , 2.5 w % claim 1 , 2.75 wt % claim 1 , 3.0 wt % claim 1 , 3.25 wt % claim 1 , 3.5 wt % claim 1 , 3.75 wt % claim 1 , 4.0 wt % claim 1 , 4.25 wt % claim 1 , 4.5 wt % claim 1 , 4.75 wt % claim 1 , 5.0 wt % claim 1 , 6.0 wt % claim 1 , 7.0 wt % claim 1 , 8.0 wt % claim 1 , 9.0 wt % claim 1 , 10 wt % claim 1 , 11 wt % ...

Composition, pellet, and processes of making polypropylene foams

The present disclosure provides improved polypropylene-based compositions (formulations). The present disclosure further provides improved micro-pellets (non-foamed), which comprise the improved polypropylene-based composition. The improved polypropylene-based compositions have a reduced melting point (Tm) for the polypropylene resin while maintaining the stiffness of the micro-pellets for use in foaming procedures. Also, the disclosure further provides a new, dry method of preparing expanded polypropylene beads from micro-pellets without a liquid medium or steam, which thereby simplifies the production process and saves both energy and production costs.

FREE-FLOWING PRESSURE SENSITIVE ADHESIVES

The invention relates to hot melt adhesives which are pressure sensitive adhesives whereby the adhesive is provided in a granulated form and is free-flowing and does not block during storage. Such pellets can be used as feed for automated feeder devices for the supply hot melt application systems. 1. A method for forming a plurality of hot melt pressure sensitive adhesive pellets comprising the steps of:(A) melting a core comprising (i) a polyester, polyacrylate, polyolefin, polyurethane, ethylene vinyl acetate polymers, styrene block copolymers or mixtures thererof, and (ii) a tackifier; and the pressure sensitive adhesive material has a tacky surface at 25° C.;(B) melting a polymeric film comprising (i) a thermoplastic polymer and (ii) less than 20 wt-% wax, based on the total weight of the polymeric film;(C) extruding the core at a temperature above or at the softening point of the core; and(D) simultaneously co-extruding the polymeric film to surround the core whereby the polymeric film completely surrounds the core.2. The method for forming a plurality of hot melt pressure sensitive adhesive pellets according to claim 1 , wherein the thermoplastic polymer is selected from (a) polyethylene claim 1 , polypropylene claim 1 , polyester claim 1 , polyacrylate claim 1 , ethylene vinyl acetate polymer claim 1 , styrene block copolymers or blends.3. The method for forming a plurality of hot melt pressure sensitive adhesive pellets according to claim 1 , wherein the polymeric film further comprises up to 15 wt-% of an oil claim 1 , based on the total weight of the core.4. The method for forming a plurality of hot melt pressure sensitive adhesive pellets according to claim 1 , wherein the polymeric film comprises less than 15 wt-% of the wax.5. The method for forming a plurality of hot melt pressure sensitive adhesive pellets according to claim 1 , wherein steps (C) and (D) are performed in water.6. The method for forming a plurality of hot melt pressure sensitive ...

PELLET BASED TOOLING AND PROCESS FOR BIODEGRADEABLE COMPONENT

An example method of forming a biodegradable component includes extruding a mixture of biodegradable material and water through a die. The method further includes dividing the extruded mixture to form a plurality of biodegradable pellets. The method further includes forming the plurality of biodegradable pellets into a component. The water acts as a binding agent to bind the plurality of biodegradable pellets to one another. 1. A method of forming a biodegradable component , the method comprising:extruding a mixture of biodegradable material and water through a die;dividing the extruded mixture to form a plurality of biodegradable pellets; andforming the plurality of biodegradable pellets into a component, wherein the water acts as a binding agent to bind the plurality of biodegradable pellets to one another.2. The method of claim 1 , further comprising cooling the plurality of biodegradable pellets to a temperature below the freezing temperature of water prior to the forming step.3. The method of claim 2 , wherein the cooling reduces a tackiness of the plurality of biodegradable pellets.4. The method of claim 2 , wherein the cooling is accomplished by exposing the plurality of biodegradable pellets to a liquid nitrogen environment.5. The method of claim 2 , wherein the plurality of biodegradable pellets are heated to a temperature above the freezing temperature of water during the forming step.6. The method of claim 5 , wherein the heating and forming is done in a mold.7. The method of claim 1 , wherein the biodegradable material is a starch-based biodegradable material.8. The method of claim 7 , further comprising adding an additive to the starch-based biodegradable material prior to the extruding step claim 7 , wherein the additive enhances the expansion properties of the starch-based biodegradable material.9. The method of claim 7 , wherein the additive is selected from the group of an acid/base mixture claim 7 , heat-expandable thermoplastic microspheres claim ...

RECYCLING METHOD OF WASTE FISHNET

A recycling method of waste fishnet is provided. The waste fishnet is processed with steps of cutting, removing impurities, cleaning, and drying to form fishnet chips. The recycling method of waste fishnet includes the following steps. The fishnet chips are mixed with nylon-66, wherein the fishnet chips are of 70% by weight, and nylon-66 is of 30% by weight. The mixture is heated and molten. The molten mixture is then processed with the step of granulation. The grains are then processed with the step of spinning Thereby, the waste fishnet can be recycled and transferred into useful plastic materials. 1. A recycling method of waste fishnet , waste fishnet being processed in advance with steps of cutting , removing impurities , cleaning and drying to form fishnet chips , the recycling method of waste fishnet including:melting the fishnet chips;sieving impurities;granulating the molten fishnet chips to form fishnet granules;mixing the fishnet granules and nylon-66 together, wherein the fishnet granules are of 70% to 99.9% by weight, and the nylon-66 is of 0.1% to 30% by weight;melting the mixed fishnet granules and nylon-66;cooling the mixed fishnet granules and nylon-66 with water;granulating the molten fishnet granules and nylon-66 to form grains;crystallization by cooling the grains to ambient temperature;drying the grains;evacuation to the grains;spinning the grains produced in the step of granulating.2. The recycling method of waste fishnet of claim 1 , wherein during the step of mixing claim 1 , the fishnet granules are of 70% by weight claim 1 , and nylon-66 is of 30% by weight.3. The recycling method of waste fishnet of claim 1 , wherein the waste fishnet is composed mainly of nylon-6.4. The recycling method of waste fishnet of claim 1 , wherein nylon-66 is acquired from waste airbags or waste parachutes.5. A recycling method of waste fishnet claim 1 , including the following steps:roughly cutting waste fishnet;removing large impurities in the waste fishnet; ...

DEVICE FOR COOLING PARTICULATE MATERIALS

Disclosed is a device for cooling particulate materials or particles, in particular granulates of polymeric materials, having an outer container with an, in particular frustoconical, outer shell surface and an inner container, which is arranged at least in sections in the interior of the outer container, with an, in particular frustoconical, inner shell surface, wherein an intermediate space is formed between the outer shell surface and the inner shell surface, wherein an inlet equipment for introducing a gas flow as well as the particles into the intermediate space is provided in an inlet-side initial region of the device, and wherein an outlet opening for the particles is provided in an outlet-side end region of the device opposite the inlet equipment, wherein the inlet equipment is so arranged and/or designed that the gas flow as well as the particles can be introduced substantially tangentially into the intermediate space. 121.-. (canceled)22. A device for cooling particulate materials or particles , in particular granulates of polymeric materials , comprising{'b': 2', '3, 'an outer container () with an outer, in particular frustoconical, outer shell surface () and'}{'b': 4', '2', '5, 'an inner container (), which is arranged at least in sections in the interior of the outer container (), with an, in particular frustoconical, inner shell surface (),'}{'b': 6', '3', '5, 'wherein an intermediate space () is formed between the outer shell surface () and the inner shell surface (),'}{'b': 7', '6', '11', '1, 'wherein an inlet equipment () for introducing a gas flow and the particles into the intermediate space () is provided in an inlet-side initial region () of the device (), and'}{'b': 15', '12', '1', '7, 'wherein an outlet opening () for the particles is provided in an outlet-side end region () of the device () opposite the inlet equipment (),'}{'b': 7', '6, 'wherein the inlet equipment () is arranged and/or designed in such a way that the gas flow and the ...

Powdered polyurethane urea resin composition for slush molding and manufacturing process therefor

Provided are: a powdered material for slush molding; and a manufacturing process therefor. The powdered material is less odorous, exhibits excellent powder fluidity, and does not suffer from troubles resulting from the sliding-down or agglomeration of a pigment even when the resin particles have been pigmented on the surfaces thereof. Thus, the powdered material ensures high productivity. The powdered material is a powdered polyurethane urea resin composition which comprises (D) a polyurethane urea resin that has a total content of bimolecular condensate of acetone, bimolecular condensate of methyl ethyl ketone, and bimolecular condensate of methyl isobutyl ketone of 1,000 ppm or less and (N) an additive, wherein the polyurethane urea resin (D) takes the form of thermoplastic polyurethane urea resin particles (P) that have a volume-mean particle diameter of 20 to 500 μm and that have protrusions and recesses on the surfaces. The powdered polyurethane urea resin composition is manufactured by a manufacturing process which includes a step of mixing (A) an isocyanato-terminated urethane prepolymer with (B) an alicyclic diamine and/or an aliphatic diamine in an aqueous medium by stirring to form the resin particles (P).

FOAMS BASED ON THERMOPLASTIC POLYURETHANES

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84. 1. The process according to claim 12 , wherein the Shore hardness of the thermoplastic polyurethane is from A 62 to A 80.2. The process according to claim 12 , wherein the thermoplastic polyurethane exhibits a melting range claim 12 , measured by DSC using a heating rate of 20 K/min claim 12 , that starts below 130° C. claim 12 , and the thermoplastic polyurethane has at most a melt flow rate of 250 g/10 min at 190° C. with an applied weight of 21.6 kg to DIN EN ISO 1133.3. The process according to claim 12 , wherein the thermoplastic polyurethane comprises a polytetrahydrofuran of a molar mass of from 600 g/mol to 2500 g/mol.4. The process according to claim 12 , wherein the thermoplastic polyurethane comprises a polyester alcohol of a molar mass of from 600 g/mol to 900 g/mol.5. (canceled)6. The process according to claim 12 , wherein the thermoplastic polyurethane comprising blowing agent comprises from 5 to 80% by weight of organic and/or inorganic fillers claim 12 , based on the total weight of the thermoplastic polyurethane comprising blowing agent.711-. (canceled)12. A process for production of expanded thermoplastic polyurethane foam beads claim 12 , comprising:(i) melting a thermoplastic polyurethane whose Shore hardness is from A 44 to A 84, together with from 0.1 to 40% by weight, based on the total weight of pellets, of a blowing agent, if appropriate with additives, in an extruder, and (ii) pelletizing the melt without devices which inhibit foaming to produce expanded thermoplastic polyurethane foam beads.1314-. (canceled)15. A process for production of foam moldings claim 12 , which comprises producing expanded thermoplastic polyurethane foam beads according to the process of and fusing them in a closed mold by steam at a temperature of from 100° C. to 140° C.16. The process according to claim 12 , wherein ...

MULTILOBED POLYESTER PELLETS

Polyester multilobed prepolymer pellets and methods of making and using the same are provided. The multilobed polyester pellets have an increased surface area to volume ratio which improves intraparticle diffusion mass transfer rates resulting in a reduction of pellet drying and solid state polymerization processing times. 1. A method for producing polyester pellets , the method comprising:extruding a polyester polymer melt through a multilobed capillary to form a multilobed polyester polymer strand; andseparating the polyester polymer strand to form multilobed polyester resin pellets.2. The method of claim 1 , further comprising quenching the multilobed polyester resin pellets.3. The method of claim 2 , further comprising solid state polymerizing the multilobed polyester resin pellets under an inert gas or under partial vacuum.4. The method of claim 1 , wherein the polyester is a poly(ethylene terephthalate) claim 1 , a poly(ethylene furanoate) claim 1 , a poly(ethylene terephthalate) co-polymer claim 1 , or a poly(ethylene furanoate) co-polymer.5. The method of claim 1 , wherein the multilobed polyester resin pellets have a modification ratio of 1.05 or greater.6. The method of claim 1 , wherein the multilobed polyester resin pellets have two or more lobes.7. The method of claim 1 , wherein the multilobed polyester resin pellets have a polymer density of about 1.1-1.8 g/cm(25° C.) and a length of about 2-3 mm.8. The method of claim 1 , wherein the multilobed polyester resin pellets have a polymer density of about 1.3 g/cm(25° C.) claim 1 , a length of about 2.5 mm claim 1 , a cross-sectional area of about 3.8 mm2 claim 1 , and a volume of about 9-10 mm.9. The method of claim 1 , wherein the multilobed polyester resin pellets have at least a 10% faster solid state polymerization rate than cylindrical pellets having an equivalent mass.10. The method of claim 1 , wherein the multilobed polyester resin pellets have at least a 10% faster moisture drying rate than ...

METHOD AND APPARATUS FOR CRYSTALLIZING AND INCREASING MOLECULAR WEIGHT OF POLYMER PARTICLES

The present subject matter claims a process and apparatus for forming, crystallizing and increasing the molecular weight of polymer particles which does not require re-heating the polyethylene terephthalate (PET) pellets after they are cut and crystallized in the under water cutting (UWC) section. In the existing solid state polycondensation (SSP) technologies where an 1. A process for making PET particles comprising:a PET melt having a temperature of about 230° C. to about 310° C.;cutting the molten PET particles into pellets while quenching with a cooling liquid resulting in sold PET particles;drying the solid PET particles;passing the solid PET particles to a crystallization bin wherein crystallization of the particles takes place, resulting in a temperature increase; andcontacting the solid PET particles with hot inert gas or air.2. The process for making PET particles as in claim 1 , further comprising transporting the solid PET particles upwardly to the top of a SSP reactor with hot inert gas.3. The process for making PET particles as in claim 1 , wherein the cooling liquid has a temperature from about 60° C. to about 140° C.4. The process for making PET particles as in claim 1 , wherein the cooling liquid has a contact time of about 0.01 seconds to about 5 seconds to obtain solid PET particles.5. The process for making PET particles as in claim 1 , wherein drying the solid PET particles comprises a physical separation using a centrifugal dryer.6. The process for making PET particles as in claim 1 , wherein the solid PET particles include a temperature of about 190° C. to about 215° C.7. The process for making PET particles as in claim 1 , wherein a temperature increase ranging from about 5° C. to about 10° C. due to the exothermic crystallization takes place in the crystallization bin.8. The process for making PET particles as in claim 1 , wherein passing the solid PET particles to a crystallization bin includes an outlet temperature of about 190° C. to about ...

Carpet Reclamation System

A method an apparatus for reclaiming face fibers and polypropylene and/or polyvinyl chloride backing material from rolls and pieces of post-consumer carpet. The system includes a separator for separating the face fibers from the backing and for separating latex and carbon calcium powder from polypropylene backing. An extruder is provided for extruding the face fibers separated from the backing into extrusions, and a pelletizer pelletizes the extrusions. A roller opener opens the polypropylene backing into fibrous portions and also cleans such fibrous portions. Alternately, a granulator can be provided that chops and grinds the polypropylene or PVC backing into fragments after the separation of the face fibers from the backing. A heat source heats the PVC fragments, and also the polypropylene fragments (thereby separating the latex therefrom), and ultimately melts such fragments. Reclaimed fibers can be pelletized, made into extrusions, used in non-woven products and in other manners.

ADHESIVE RESIN PELLETS AND METHOD OF MANUFACTURING SAME

A method for manufacturing adhesive resin pellets includes adding an antiblocking agent to water, melting an adhesive resin and extruding the adhesive resin into the water, and cutting the adhesive resin extruded into the water to form adhesive resin pellets. Polyolefin fine particles used for the antiblocking agent have an average particle diameter of 1 μm or more and less than 18 μm, and the adhesive resin has an adhesive force of less than 15.00 N/25 mm. 1. A method for manufacturing adhesive resin pellets , comprising:adding an antiblocking agent to water;melting an adhesive resin and extruding the adhesive resin into the water; andcutting the adhesive resin which have been extruded into the water to form adhesive resin pellets, whereinthe antiblocking agent comprises polyolefin fine particles,the polyolefin fine particles have an average particle diameter of 1 μm or more and less than 18 μm, andthe adhesive resin has an adhesive force of less than 15.00 N/25 mm.2. The method for manufacturing adhesive resin pellets according to claim 1 , wherein the adhesive resin has a holding force of 0.5 mm or less.3. The method for manufacturing adhesive resin pellets according to claim 1 , comprising:dehydrating and drying the adhesive resin pellets after the cutting step; andattaching the antiblocking agent to the dehydrated and dried adhesive resin pellets.4. The method for manufacturing adhesive resin pellets according to claim 1 , wherein the polyolefin fine particles are compatible with the adhesive resin.5. The method for manufacturing adhesive resin pellets according to claim 1 , wherein the dehydrated and dried adhesive resin pellets with the antiblocking agent attached thereto have an average particle diameter of 2 to 10 mm.6. Adhesive resin pellets having fine particles attached to surfaces thereof claim 1 , whereinthe fine particles comprise thermoplastic polyolefin fine particles,the fine particles have an average particle diameter of less than 18 μm,the ...

Centrifugal pellet dryer

The present invention relates to a centrifugal pellet dryer comprising a housing accommodating a rotor surrounded by a screen, and a feeding system for feeding a water-pellet-slurry to said rotor, said feeding system including a pre-dewatering system for separating water from said water-pellet-slurry upstream of said rotor. The pre-dewatering system may include a feeding pipe having a dewatering perforation, said pipe being configured to be mounted in different positions to adjust the amount of dewatering.

Quenched Granular Absorbent and System and Method for Making Quenched Granular Absorbent

A system and method of extruding self-clumping granular absorbent having cold water soluble amylopectin starch binder formed from starch-containing admixture sufficient for extruded sorbent pellets to produce flowable binder flowing between pellets clumping them together producing clumps of pellets that become hard when substantially dry that have a crush strength of at least 25 PSI and clump retention of at least 80% and preferably at least 90%. As a result, dried pellet clumps are easy to pick up leaving behind unspent pellets for continued sorbent use. A pellet quenching apparatus and method rapidly cools and dries pellets before leaving the extruder preventing loss of cold water soluble starch and binder, preventing pellet shrinkage, and preventing pellet densification. An air conveyor transporting quenched pellets removed from the extruder further cools and dries the pellets producing pellets ready for sorbent use. 1. A method of making granular extrudate comprising the following steps:(a) providing an extruder having an extruder die, a starch-containing admixture for being extruded from the extruder by being discharged from the extruder die as granular extrudate, an extrudate discharge chamber in communication with the extruder die that receives the granular extrudate discharged from the extruder die, and an elongate discharge conduit in gas flow communication with the extrudate discharge chamber for transporting the granular extrudate away from the extruder and the extrudate discharge chamber;(b) extruding the starch-containing admixture from the extruder by gelatinizing the starch-containing admixture and extruding the gelatinized starch-containing admixture by discharging the gelatinized starch-containing admixture from the extruder die into the extrudate discharge chamber; and(c) transporting the granular extrudate from the extrudate discharge chamber into the discharge conduit by a gas flowing through (i) the extrudate discharge chamber and (ii) the ...

Diverter valve for conveying a material and method for cleaning thereof

A diverter valve for conveying a material has a housing with at least three passage openings for feeding or discharging material. The passage openings define a conveying plane. The diverter valve includes a rotary part with an outer contour that is conical, at least in sections, with respect to its axis of rotation. The rotary part is arranged in a sealed manner in the housing. The rotary part can be axially displaced and rotated within the housing. The axis of rotation is perpendicular to the conveying plane. A passage conduit is arranged in the rotary part, which, depending on the rotational position of the rotary part, connects to each other two passage openings for conveying material along the passage conduit through the diverter valve. A drain opening is provided in the housing for the automatic drainage of a liquid from the housing.

Nozzle, Apparatus, and Method for Producing Microparticles

A nozzle includes a nozzle body having a fluid passageway to which extension tubes are communicated. Each extension tube includes an end having an outlet port. The outlet ports are spaced from each other. An apparatus includes the nozzle, a fluid tank into which the extension tubes extends, a fluid shear device mounted in the fluid tank, and a temperature control system in which the fluid tank is mounted. A method includes filling a water phase fluid into the fluid tank. An oil phase fluid flows out of the nozzle body via the outlet ports. The water phase fluid is disturbed and flows out of the outlet ports to form semi-products of microparticles in the fluid tank. Each semi-product has an inner layer formed by the oil phase fluid and an outer layer formed by the water phase fluid. The outer layers of the semi-products are removed to form microparticles. 1. A nozzle for producing microparticles , comprising: a nozzle body including a fluid passageway therein , with a plurality of extension tubes communicated with an end of the fluid passageway , with each of the plurality of extension tubes including a distant end having an outlet port and located distant to the fluid passageway , and with the outlet ports of the plurality of extension tubes spaced from each other.2. The nozzle for producing microparticles as claimed in claim 1 , wherein the plurality of extension tubes is parallel to each other.3. The nozzle for producing microparticles as claimed in claim 1 , with the outlet port of each of the plurality of extension tubes having a diameter claim 1 , with each of the plurality of extension tubes including a tubular wall having a thickness smaller than the diameter.4. The nozzle for producing microparticles as claimed in claim 1 , with the outlet port of each of the plurality of extension tubes having a diameter claim 1 , with two adjacent extension tubes having a minimum spacing therebetween claim 1 , and with the minimum spacing being larger than the diameter.5. ...

BUILT-IN ANTIMICROBIAL PLASTIC RESINS AND METHODS FOR MAKING THE SAME

Provided herein is a method for preparing antimicrobial thermoplastic resins and products thereof. 1. A method for preparing an antimicrobial thermoplastic resin , the method comprising the steps of:preparing an antimicrobial thermoplastic resin by melt extruding a composition comprising an intermediate, polyethylene glycol (PEG), and a basic plastic selected from the group consisting of a polyolefin, polyvinyl chloride, and a polycarbonate, wherein said antimicrobial thermoplastic is biocide-free and has bacterial-repellent properties and the intermediate is selected from the group consisting of:a co-polymer comprising a polystyrene repeating unit and a maleic anhydride repeating unit;a maleic anhydride grafted polypropylene; anda maleic anhydride-grafted olefin plastomer.2. The method of further comprising the step of molding the antimicrobial thermoplastic resin into a finished article through a thermoforming process.3. The method of claim 2 , wherein the finished article is in a form selected from the group consisting of solid claim 2 , monolith claim 2 , tube claim 2 , composite claim 2 , fiber claim 2 , film claim 2 , sheet and varnish.4. The method of claim 1 , wherein the basic plastic is a thermoplastic and melt-processable plastic resin selected from the group consisting polyethylene claim 1 , polypropylene claim 1 , and polyvinyl chloride.5. The method of claim 1 , wherein the composition further comprises citric acid.6. The method of claim 1 , wherein the intermediate is a co-polymer comprising a polystyrene repeating unit and a maleic anhydride repeating unit.7. The method of claim 6 , wherein the basic plastic is selected from the group consisting polyethylene claim 6 , polypropylene claim 6 , and polyvinyl chloride.8. The method of claim 6 , wherein the basic plastic is selected from the group consisting polypropylene and polyvinyl chloride.9. The method of claim 8 , wherein the basic plastic is polypropylene and PEG claim 8 , the intermediate claim 8 ...

Method and apparatus for producing particles, particles, composition, particles dispersion liquid, and method for producing the particles dispersion liquid

A method for producing particles, the method including: depolymerizing a resin to obtain a depolymerized product; contacting the depolymerized product obtained in the depolymerizing with a first compressive fluid to obtain a melted product; and jetting the melted product obtained in the contacting to granulate the particles.

MILLING HEAD FOR AN UNDERWATER GRANULATING INSTALLATION

The invention relates to a milling head () for an underwater granulating installation, comprising a rotor body () having a plurality of blade-holding arms () adjoining the outer circumference and to each of which a blade element () is fixed, wherein in the region of each blade-holding arm () the rotor body () has at least one receiving opening () for a fixing element (). The blade element () is integral with a main body () and a cutting body (), wherein the main body () is placed with a lower supporting surface () on the rotor body () and the supporting surface () extends as far as at least one blade-holding arm (). The blade-holding arm () is covered by the blade element (). The cutting body () has an integrally moulded cutting edge () and/or is bonded to an embedded cutting insert element with a cutting edge. 1. A cutter head for an underwater granulating installation , at least comprising one rotor body having a multiplicity of cutter-retaining arms which adjoin the outer circumference and on which in each case one cutter element is fastened , wherein the rotor body in the region of each cutter-retaining arm displays at least one receptacle recess for a fastening element ,characterized in that the cutter element is integrally configured having a basic body and at least one blade body, wherein the basic body is placed upon the rotor body by way of a lower bearing face and the bearing face extends up to at least one cutter-retaining arm, wherein the cutter-retaining arm on its upper side is overlapped by the cutter element, and in that the blade body displays at least one cutting edge molded thereon and/or is connected in a materially integral manner to an embedded blade-insert element having a cutting edge.2. The cutter head as claimed in claim 1 , characterized in that the basic body displays at least one bore for passing through the fastening element and one form-fitting element for engaging in a form-fitting element of the rotor body.3. The cutter head as ...

PRODUCTION OF A THERMOPLASTIC INJECTION-MOLDING-MATERIAL GRANULATE AND OF AN INJECTION-MOLDED COMPONENT, AND A GRANULATE GRAIN

A system for production of a thermoplastic injection molding material granulate has at least one production unit for the production of a fiber reinforced plastic granulate from a thermoplastic granulate and natural fibers. to the system has at least one heat-treatment unit for the treatment of the fiber-reinforced plastic granulate providing heat such that an outer layer of each heated granulate grain of the fiber-reinforced plastic granulate is at least partially converted to a liquid physical state. The system has at least one applicator unit for applying a chemical foaming agent powder to at least some portions of each heated granulate grain, where the heat treatment unit is equipped to carry out the heat treatment such that a temperature of the molten outer layer of the respective granulate grain is below a reaction temperature of the foaming agent. 1. A method of making a natural fiber-reinforced thermoplastic injection molding material granulate , the method comprising:combining a thermoplastic granulate and natural fibers to produce a fiber-reinforced granulate having a granulate grain,first heating of the fiber-reinforced granulate such that an outer layer of the granulate grain is at least partially converted to a liquid physical state and a temperature of the molten outer layer is below a reaction temperature of a foaming agent during the first heating; andapplying a powder comprising the foaming agent to at least some portions of the granulate grain to form the natural fiber-reinforced thermoplastic injection molding material granulate having a powder-containing granulate grain.2. The method of claim 1 , wherein the first heating includes infrared radiation.3. The method of claim 1 , wherein the temperature is a temperature in a range of a melting point of a thermoplastic content of the granulate grain.4. The method of claim 1 , wherein the first heating includes moving the fiber-reinforced granulate around to uniformly heat the granulate grain on all ...

CONTINUOUS BAGGING PROCESSES AND SYSTEMS

Methods and systems for continuously bagging pellets formed from a tacky and/or polymer containing formulation include improved drying systems and techniques. The methods and systems may include directing a flow of air to help contain moisture within a dryer, transport pellets out of the dryer, and/or dry pellets as they move away from the dryer. The methods and systems may include conditioning (e.g., drying, coating, classifying) the pellets using a conditioning unit prior to bagging the pellets. 1. A method for continuously bagging tacky and/or polymer-containing pellets , the method comprising:pelletizing a tacky and/or polymer-containing composition in a pelletizer;defluidizing pellets of the tacky and/or polymer-containing composition in a dryer;directing the defluidized pellets from a pellet outlet of the dryer towards a multi-port valve, wherein directing the pellets towards the multi-port valve comprises providing a drying flow of air at least partially opposite a directional flow of the pellets towards the multi-port valve;continuously diverting a specific quantity of the pellets through one of a plurality of outlets of the multi-port valve; andcontinuously bagging the pellets using a bagging assembly located at one or more of the plurality of outlets of the multi-port valve.2. The method for continuously bagging tacky and/or polymer-containing pellets in claim 1 , wherein directing the defluidized pellets towards the multi-port valve further comprises providing a transport flow of air to pull the defluidized pellets away from the pellet outlet.3. The method for continuously bagging tacky and/or polymer-containing pellets in claim 2 , wherein providing the drying flow of air comprises suctioning claim 2 , by one or more blowers disposed between the pellet outlet and the multi-port valve claim 2 , the drying flow of air claim 2 , and providing the transport flow of air comprises suctioning claim 2 , by the one or more blowers claim 2 , the transport flow of ...

PROCESS FOR HYDRAULIC CONVEYING OF POLYOLEFIN PELLETS

Process for hydraulic conveying of polyolefin pellets comprising the steps of: (i) extruding molten polyolefin into strands and cutting the strands into pellets in an underwater pelletiser (A); (ii) withdrawing a first pellet suspension stream () from the pelletiser; (iii) concentrating the first pellet suspension stream in a first pellet separator (B); (iv) passing the concentrated pellet stream () to a hydraulic conveying line through a first vessel (D) and mixing it with water thereby producing a second pellet suspension stream (); (v) withdrawing the second pellet suspension stream from the first vessel and passing it to a second pellet separator (E); (vi) separating the pellets from water in the second pellet separator thereby creating a second water stream () and a dry pellet stream () and passing the second water stream back to the first vessel; wherein any one of the first or second pellet suspension stream or the dry pellet stream comprises an antiblock. 1. A process for hydraulic conveying of pellets of polyolefins comprising the steps of: (i) extruding molten polyolefin into strands and cutting the strands into pellets in an underwater pelletiser; (ii) withdrawing a first pellet suspension stream from the underwater pelletiser; (iii) concentrating the first pellet suspension stream in a first pellet separator thereby producing a concentrated pellet stream and a first water stream substantially free of pellets and passing the first water stream back to the underwater pelletiser; (iv) passing the concentrated pellet stream to a hydraulic conveying line through a first vessel and mixing it with water thereby producing a second pellet suspension stream; (v) withdrawing the second pellet suspension stream from the first vessel and passing it to a second pellet separator; (vi) separating the pellets from water in the second pellet separator thereby creating a second water stream and a dry pellet stream and passing the second water stream back to the first ...

MELT FLOWABLE BIOCARBON AND METHOD OF MAKING SAME

The following invention generally relates to a melt flowable biocarbon polymeric material derived from a cellulosic ethanol refining co-product, monolignol biopolymer, and a heat processed or thermally modified biomass flour, both of which are reacted together to create a melt flowable biopolymer which has melt flowable properties, process-ability and rheology similar to that of standard petrochemical based thermoplastics. 1. A melt flowable biocarbon polymer comprising a blend of a melt flowable monolignol biopolymer and a thermally processed biomass flour.2. A melt flowable biocarbon of wherein the melt flowable monolignol biopolymer is derived from a hybrid organosolv/reactive phase separation cellulosic biofuel process by further devolatilizing and reacting a meltable lignin extract.3. A melt flowable biocarbon of wherein the thermally processed biomass is derived from trees claim 2 , wood claim 2 , wood waste claim 2 , agricultural residues claim 2 , nut or seed hulls or blends thereof.4. A melt flowable biocarbon of wherein thermal processed biomass can be dried wood flour claim 3 , thermally modified wood flour claim 3 , torrefied wood flour claim 3 , pyrolyzed wood flour claim 3 , biochar or blends thereof.5. A melt flowable biocarbon of wherein thermally processed biomass flour has a mesh size between 30 to 500 mesh.6. A melt flowable biocarbon of wherein thermally modified biomass flour comprises 1-60% of the melt flowable biocarbon.7. A melt flowable biocarbon of wherein the melt flowable biocarbon has a melt flow similar to thermoplastics claim 1 , antioxidant and antimicrobial functionality and highly hydrophobic.8. A melt flowable biocarbon of wherein the thermally processed biomass flour is substantially fully impregnated by the monolignol biopolymer.9. A melt flowable biocarbon of wherein the melt flowable biocarbon comprising a heat reacted blend of monolignol biopolymer and thermally processed biomass in the form of a powder claim 1 , granular ...

METHOD OF FORMING A SUBSTRATE FOR A SPORTS SURFACE OF A SPORTS PITCH, SUCH A SUBSTRATE AS WELL AS A SPORTS PITCH PROVIDED WITH SUCH SUBSTRATE

A method of forming a substrate for a sports surface of a sports pitch includes the steps of: a) Agglomerating plastics materials; b) Granulating the agglomerated plastics materials to form granules having a predetermined range of sizes; c) In situ coating the granules with a binding material so that they form a fluent material; d) Forming a layer of the fluent material on the site of the sports pitch; and e) Setting the laid material such that the granules adhere where they contact each other to form a voided water permeable structure. 1. A method of forming a stable substrate for a sports surface of a sports pitch comprising:a) Agglomerating plastics materials;b) Granulating the agglomerated plastics materials to form granules having a predetermined range of sizes;c) In situ coating the granules with a binding material so that they form a fluent material;d) Forming a layer of the fluent material on the site of the sports pitch; ande) Setting the laid material such that the granules adhere where they contact each other to form a voided water permeable structure.2. The method as claimed in wherein the plastics material is “end of life” plastics material.3. The method as claimed in wherein the granules are substantially incompressible.4. The method as claimed in wherein the binding matrial is a Polyurethane claim 1 , Bitumen or Polyofin.5. The method as claimed in wherein the substrate is formed in adjacent edge butting layers.6. The method as claimed in wherein the binding material adhere at the butted edges.7. The method as claimed in wherein the bulk density of the layers is selected in accordance with the characteristics of the surface on which it is laid.8. The method as claimed in wherein the layer is between 20 mm and 100 mm thick.9. A substrate for a sports surface of a sports pitch obtained with the method according to .10. A sports pitch comprising a substrate obtained with the method according to . This application is a continuation of U.S. patent ...

Built-in antimicrobial plastic resins and methods for making the same

A built-in and process-adaptive formulation of antimicrobial commodity thermoplastic resins with mixed compositions comprising of a polymer, a backbone linker, and a non-labile antifouling and biocompatible coupling agent which is melt-processable and enabled to be manufactured into finished products in the form of solid, monolith, tube, composite, fiber, film, sheet and varnish without the prerequisite of biocides or antimicrobial additives is disclosed. The said formulation is adapted to thermoforming and thermal curing processes including but not limited to melt compounding, spinning, extrusion, molding, compression foaming and drawing. The antimicrobial property is attributed to the persistent formation of a non-stick bacteria-repellent tethered layer in which the antifouling component of the said formulation is heterogeneously phase separated and/or surface migrated to the surface after product forming in order to minimize adsorption and/or colonization of bacteria.

DIE PLATE WITH DIE PLATE BODY HAVING AN APERTURED DOWNSTREAM FACE COVERED BY A SOLID FACE PLATE

A die plate is provided for an underwater pelletizer. The die plate includes a die plate body and a solid face plate. The downstream face of the die plate body has a plurality of insulation holes drilled therein that reduce the surface area contact between the die plate body and the solid face plate that is secured to the downstream face of the die plate body to form the cutting surface. In addition, a circular groove is preferably milled into the downstream face of the die plate body. The groove is concentric with the outer perimeter of the die plate body and creates an outer ring and a center boss. The outer downstream surface of the boss is flush with the outer downstream surface of the outer ring so that the boss and ring together form the downstream face of the die plate body for supporting the solid face plate. The insulation holes and groove are filled with a non-reactive atmosphere such as nitrogen, inert gas(es), a vacuum or a partial vacuum. 1. A die plate for an underwater pelletizer comprising:a die plate body having a plurality of extrusion orifices in a generally circular arrangement adjacent a periphery of said die plate body, and a plurality of open apertures formed in a downstream face of said die plate body; anda solid face plate positioned to cover said downstream face of the die plate body and having extrusion orifice extensions extending through a periphery of said solid face plate and mating with said die plate body extrusion orifices, a downstream side of said solid face plate forming a pelletizer cutting surface, said plurality of open apertures forming hollow cavities when covered by the solid face plate.2. The die plate as set forth in claim 1 , wherein the hollow cavities in the downstream face of the die plate body provide a non-reactive atmosphere.3. The die plate as set forth in claim 1 , wherein the hollow cavities in the downstream face of the die plate body are filled with nitrogen or an inert gas.4. The die plate as set forth in ...

METHOD OF MAKING SPHEROIDAL PARTICLES

A method for forming spheroidal particles including inducing flow of a slurry of particles and a reactant through one or more orifices, detaching an amount of the slurry from the slurry flow following exit from the one or more orifices, the detached amount forming a slurry body, forming the slurry body into a spheroidal shape, contacting the spheroidally shaped slurry body with a coagulation solution to form a stabilized spheroidal particle and drying and/or sintering the stabilized spheroidal particle. 1. A method for forming spheroidal particles comprising:inducing flow of a slurry comprised of particles and a reactant through one or more orifices;detaching an amount of the slurry from the slurry flow following exit from the one or more orifices, the detached amount forming a slurry body;forming the slurry body into a spheroidal shape;contacting the spheroidally shaped slurry body with a coagulation solution to form a stabilized spheroidal particle; anddrying and/or sintering the stabilized spheroidal particle.2. The method according to claim 1 , wherein the inducing flow of the slurry is performed by applying a load to a piston in a container housing the slurry to force the slurry through the one or more orifices associated with an exit of the container claim 1 , increasing pressure in the container housing the slurry to force the slurry through the one or more orifices associated with an exit of the container claim 1 , decreasing a volume of the container housing the slurry to force the slurry through the one or more orifices associated with an exit of the container claim 1 , or pumping the slurry from the container housing the slurry to force the slurry through the one or more orifices associated with an exit of the container.3. The method according to claim 1 , wherein the method further comprises forming the slurry prior to inducing flow of the slurry by mixing the reactant and the ceramic particles.4. The method according to claim 1 , wherein the detaching ...

DEVICE TO INCREASE INTRINSIC VISCOSITY OF RECYCLING POLYESTER WASTE

The present invention relates to a device to increase intrinsic viscosity of recycling polyester waste, first, shredding the recycled polyester waste, pouring the shredded polyester waste into a melting unit for smelting for achieving melting status, after filtration, pouring the semi-finished pellet into a reactor tank, the molecular chain of the melting polyester will depolymerize to a shorter molecular chain and further repolymerize to a molecular chain fitting the requirement, and using a vacuum unit to remove the organic impurity, moisture and dirt for increasing the intrinsic viscosity of the semi-finished pellet to make intrinsic viscosity be higher than 0.65 dl/g; by processing with the reactor tank, the present invention increases intrinsic viscosity of recycling polyester waste by changing the I.V. of the RPET and the structure of the molecular chain, enhancing the quality of the RPET for increasing applicability and economic benefits of RPET. 1. A device to increase intrinsic viscosity of recycling polyester waste , comprising:a shredding unit shredding the recycled polyester waste;a melting unit, pouring the shredded polyester waste into said melting unit for smelting for achieving melting status;a filtration unit, pouring the melting polyester into said filtration unit for removing the inorganic impurity to form a semi-finished pellet;wherein a reactor tank, the reactor tank is linked to a vacuum unit and a control unit for controlling the heating temperature and time of the reactor tank; pouring the semi-finished pellet into the reactor tank under final temperature 250° C.-300° C., the molecular chain of the melting polyester will depolymerize to a shorter molecular chain, said shorter molecular chain further repolymerize to a molecular chain fitting the requirement, and using the vacuum unit to remove the organic impurity, moisture and dirt for increasing the intrinsic viscosity of the semi-finished pellet to make intrinsic viscosity be higher than 0. ...

Method for recycling eva plastic foamed material

A method for recycling EVA plastic foamed material may include steps of collecting excess plastic foamed compound; granulating through hot melt method; weighing and mixing granular plastic compound; rolling mixed compound into plastic film; and foaming plastic film to produce EVA foam mat. The excess plastic foamed compound can be recycled and reused in the present recycling method, which has environmental benefits and reduces the manufacturing cost. Also, the EVA foam mat, which is formed from the high-quality of the plastic film coupled between two unfoamed plastic mat bodies, has strong structural strength and prolonged lifetime, which prevents the EVA foam mat from deformation due to heavy pressure and protects the floor or tiles thereunder.

METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR POWER STORAGE DEVICE

In a manufacturing process of a positive electrode active material for a power storage device, which includes a lithium silicate compound represented by a general formula LiMSiO, heat treatment is performed at a high temperature on a mixture material, grinding treatment is performed, a carbon-based material is added, and then heat treatment is performed again. Therefore, the reactivity between the substances contained in the mixture material is enhanced, favorable crystallinity can be obtained, and further microparticulation of the grain size of crystal which is grown larger by the high temperature treatment and crystallinity recovery are achieved; and at the same time, carbon can be supported on the surfaces of particles of the crystallized mixture material. Accordingly, a positive electrode active material for a power storage device, in which electron conductivity is improved, can be manufactured. 1. (canceled)2. A method for manufacturing an active material , comprising the steps of:performing a mixing treatment of a compound containing lithium, a compound containing a transition metal, and a compound containing silicon;performing first heat treatment on the mixture to form first particles after the mixing treatment;performing grinding treatment on the first particles to obtain second particles after the first heat treatment; andperforming second heat treatment on the second particles at a temperature lower than a temperature of the first heat treatment to form third particles after the grinding treatment,wherein the grinding treatment is performed by a planetary ball mill after adding a solvent to the first particles,wherein the grinding treatment is performed for longer time than the mixing treatment, andwherein the active material comprises lithium metal silicate.3. The method for manufacturing an active material according to claim 2 , wherein the transition metal is selected from the group consisting of manganese claim 2 , iron claim 2 , cobalt and nickel.4. ...

Method for producing pellets, pellets and ion exchange film

To provide a method for producing pellets from which an ion exchange membrane excellent in stability of the electrolysis voltage can be formed, pellets, and an ion exchange membrane. The method for producing pellets of the present invention is a method for producing pellets, which comprises extruding a melt containing a fluorinated polymer having groups convertible to ion exchange groups from a die of a melt-extruder to obtain a strand containing the fluorinated polymer, and cutting the strand to obtain pellets containing the fluorinated polymer, wherein the temperature of the die when the melt containing the fluorinated polymer is extruded from the die is less than 200° C., and when the groups convertible to ion exchange groups of the fluorinated polymer are converted to ion exchange groups, the ion exchange capacity of the resulting fluorinated polymer is at least 1.1 milliequivalent/g dry resin.

VACUUM-ASSISTED PELLETIZER

A thermoplastic pelletizer providing enhanced pellet yields with reduced fines contamination. The pelletizer includes a cutting rotor and a feed assembly for feeding plastic to the cutting rotor. The pelletizer further includes two chutes—a first chute arranged to collect pellets, and a second chute arranged to collect fines. A vacuum is drawn on both chutes to assist in the collection of both pellets and fines in their respective chutes. Compressed air is directed past the cutting rotor to the first chute to assist in moving pellets from the cutting rotor to the first chute. 1. A method of pelletizing material comprising the steps of:providing a rotating cutting rotor within a cutting chamber;feeding the material into the cutting rotor creating pellets;collecting the pellets in a first discharge chute section the pellets having been cut a single time by the cutting rotor; andcollecting fines in a second discharge chute section the fines having been cut a plurality of times by the cutting rotor; anddrawing a vacuum on at least one of the first and second discharge chute sections.2. A method as defined in wherein the vacuum is drawn on the first discharge chute section.3. A method as defined in wherein the vacuum is drawn on the second discharge chute section.4. A method as defined in wherein the vacuum is drawn on both the first and second discharge chute sections.5. A method as defined in further comprising:providing a divider plate separating the mouths of the first and second discharge chute sections, the divider plate extending from the mouths of the chutes toward the cutting rotor.6. A method as defined in wherein the divider plate extends more than halfway of the distance from the mouths of the chute sections to the cutting rotor.7. A method as defined in wherein the divider plate extends to a position closely proximate the cutting rotor.8. A method as defined in further comprising:directing compressed air past the cutting rotor to the mouth of the first ...

PROCESSES FOR PRODUCING POLYMER POWDERS

The present disclosure is directed to improved poly(arylene ether ketone) powders for use in laser sintering. 1. A method comprisingheating PEKK pellets to a temperature of between 160° C. and 300° C., for a time sufficient to produce semicrystalline PEKK pellets having a crystallinity of at least 10%;grinding the semicrystalline PEKK pellets to produce a PEKK powder having a median particle diameter of between about 10 microns and about 150 microns; andheating the PEKK powder to a temperature of about 275° C. to about 290° C., to produce a heat-treated PEKK powder.2. The method of claim 1 , wherein the PEKK pellets have a crystallinity of no more than 5%.3. The method of claim 2 , wherein the PEKK pellets are amorphous.4. The method of claim 1 , wherein the T:I isomer ratio of the PEKK pellets is between 50:50 to 90:10.5. The method of claim 1 , wherein the PEKK pellets are heated to a temperature of about 180° C. to about 250° C.6. The method of claim 1 , wherein the PEKK pellets have a median particle diameter of about 1 mm to about 10 mm.7. The method of claim 1 , wherein the PEKK pellets are heated for at least 5 minutes.8. The method of claim 1 , wherein the PEKK pellets are heated for between 5 minute and 30 minutes.9. The method of claim 1 , wherein the amorphous PEKK pellets further comprise one or more additives.10. The method of claim 9 , wherein the additive is an antioxidant claim 9 , a flow-facilitating agent claim 9 , carbon nanotubes claim 9 , carbon black claim 9 , or a combination thereof.11. The method of claim 9 , wherein the amorphous PEKK pellets comprise up to 10 wt. % of the one or more additives.12. The method of claim 1 , wherein the amorphous PEKK pellets are substantially free of additives.13. The method of claim 1 , wherein the grinding is performed by hammer mill claim 1 , attrition mill claim 1 , pinned disc mill claim 1 , or jet mill.14. The method of claim 1 , wherein the grinding is performed under ambient conditions or cooling ...

BLENDED FIBER MAT FORMATION FOR STRUCTURAL APPLICATIONS

A process and system are provided for introducing a blend of chopped and dispersed fibers on an automated production line amenable for inclusion in molding compositions as a blended fiber mat for structural applications. The blend of fibers are simultaneously supplied to an automated cutting machine illustratively including a rotary blade chopper disposed above a vortex supporting chamber. The blend of chopped fibers and binder form a chopped mat. The chopped mat has a veil mat placed on either side, and is consolidated with the veil mat using heated rollers maintained at the softening temperature of thermoplastic binder, with consolidated mats being amenable to being stored in rolls or as flat sheets. A charge pattern is made using the consolidated mat, and the charge pattern can be compression molded in a mold maintained at a temperature lower than the melting point of the thermoplastic fibers. 1. A system for forming a blended fiber mat comprising:two or more reels of different types of fiber tow;a vortex chamber configured as a tube, said tube housing a cutting system configured to receive the two or more types of fiber tow to form chopped fiber from the two or more reels of fiber tow;a pressurized gas flow directed into to said vortex chamber having both rotary and vertical flow components that form a vortex within said vortex chamber, said cutting system is disposed above the vortex; anda moving belt positioned under the tube to collect the chopped fiber exiting the tube under gravity.2. The system of wherein the two or more reels of different fiber tow types are glass claim 1 , carbon claim 1 , polyimides claim 1 , polyaramaides claim 1 , polyesters claim 1 , and polyamides claim 1 , and combinations thereof.3. The system of further comprising a dispenser positioned along the moving belt for applying a binder to the chopped fiber.4. The system of further comprising a treatment chamber that receives the chopped fiber coated with the binder.5. The system of ...

CUTTER HUB PIN DRIVE MECHANISM AND QUICK DISCONNECT HUB FOR AN UNDERFLUID PELLETIZER

A cutter hub pin drive mechanism and a quick disconnect hub for a pelletizer and a pelletizer having a cutter hub pin drive mechanism are provided. The pelletizer has a cutter hub that includes a cutter hub holder which is engaged with the pelletizer shaft through a plurality of drive pins. The drive pins ride in drive pin channels formed by grooves cut into an inner surface of the cutter hub holder and aligned grooves formed in the outer surface of the forward end of the pelletizer shaft. By machining of grooves into the cutter hub holder and shaft to form channels that receive the drive pins, more precise engagement between the pelletizer shaft, cutter hub holder and drive pins is obtained, resulting in improved torque transmission from the shaft to the cutter hub. Also provided is a seal around the pelletizer shaft to prevent the egress of fines into the drive pin area which might otherwise interfere with the unobstructed movement of the cutter hub holder necessary to adjust blade position. Finally, a quick disconnect hub is provided by which the pelletizer shaft can be readily disconnected from the cutting assembly to facilitate the removal of agglomerated polymer in the cutting chamber. 1. A cutter hub pin drive mechanism for a pelletizer comprising:a cutter hub holder having a plurality of grooves in an inner surface thereof;a cutter hub having a plurality of blades, said cutter hub coupled to said cutter hub holder;a pelletizer shaft powered by a motor for rotational movement, said pelletizer shaft having an outer surface with a plurality of grooves therein, said pelletizer shaft grooves in alignment with said cutter hub holder grooves to form longitudinally extending drive pin channels; anda plurality of elongated drive pins captured within said drive pin channels, said drive pins transferring torque from rotation of said pelletizer shaft to said cutter hub holder and cutter hub with said blades.2. The cutter hub pin drive mechanism for a pelletizer as set ...

Pelletizing Device with Complementary Rollers and Rollers for the Device

A pelletizing device comprising a die with a first surface, called operative surface, and a second surface that is essentially parallel to the first surface, the die between the first and the second surface comprising multiple through going openings for the forming of pellets, at least two rollers rotatable around a shaft, wherein the rollers and the die are moveable with respect to each other, each of the rollers comprising an operative pressing surface for pressing material to be pelletized through the radial openings of the die, wherein a width of the operative pressing surface on each of the rollers is smaller than a width of the operative surface of the die. The invention also relates to rollers for the device. 1. A pelletizing device comprising:a die with a first surface, called operative surface, and a second surface that is essentially parallel to the first surface, the die between the first and the second surface comprising multiple through going openings for the forming of pellets; andat least two rollers rotatable around a shaft, wherein the rollers and the die are moveable with respect to each other, each of the rollers comprising an operative pressing surface for pressing material to be pelletized through the radial openings of the die; andwherein a width of the operative pressing surface on each of the rollers is smaller than a width of the operative surface of the die.2. The pelletizing device of claim 1 , wherein the device is arranged such that during operation a relative movement between rollers and die is driven in a repetitive pattern claim 1 , and wherein the operative pressing surface of each of the rollers has been laid out such that during a cycle of the repetitive pattern at least 30% and preferably at least 90% of the operative surface of the die is being overrolled only once by an operative pressing surface of a roller.3. The pelletizing device of claim 1 , wherein areas of the operative die surface that are being overrolled more than once ...

CUTTER HUB PIN DRIVE MECHANISM AND QUICK DISCONNECT HUB FOR AN UNDERFLUID PELLETIZER

A cutter hub pin drive mechanism and a quick disconnect hub for a pelletizer and a pelletizer having a cutter hub pin drive mechanism are provided. The pelletizer has a cutter hub that includes a cutter hub holder which is engaged with the pelletizer shaft through a plurality of drive pins. The drive pins ride in drive pin channels formed by grooves cut into an inner surface of the cutter hub holder and aligned grooves formed in the outer surface of the forward end of the pelletizer shaft. By machining of grooves into the cutter hub holder and shaft to form channels that receive the drive pins, more precise engagement between the pelletizer shaft, cutter hub holder and drive pins is obtained, resulting in improved torque transmission from the shaft to the cutter hub. Also provided is a seal around the pelletizer shaft to prevent the egress of fines into the drive pin area which might otherwise interfere with the unobstructed movement of the cutter hub holder necessary to adjust blade position. Finally, a quick disconnect hub is provided by which the pelletizer shaft can be readily disconnected from the cutting assembly to facilitate the removal of agglomerated polymer in the cutting chamber. 1. A pelletizer for extruding and cutting a process melt into pellets , comprising:a pelletizer shaft rotationally driven by a motor;a die plate with a plurality of extrusion orifices formed therein through which the process melt is carried from said die plate to a cutting face on a downstream side of said die plate;a rotary cutter blade assembly in opposed relation to said cutting face, said rotary cutter blade assembly having a cutter hub with at least one blade mounted thereon and capable of moving in a plane generally parallel to and closely adjacent said cutting face to cut strands of process melt extruded through said orifices into pellets;a cutter hub drive mechanism for transferring torque from rotation of said pelletizer shaft to a cutter hub holder coupled to said ...

Methods for combining thermoplastic polymer with carbon nanomaterial

Disclosed are methods for combining a thermoplastic polymer with a carbon nanomaterial. More particularly, A method of preparing a thermoplastic polymer combined with a carbon nanomaterial includes combining the carbon nanomaterial with a pyrene derivative by stirring 1 to 40 wt % of a carbon nanomaterial, 1 to 40 wt % of a polycyclic aromatic hydrocarbon derivative, and 20 to 98 wt % of a solvent with a mechanical mixer. According to the present invention, the resulting materials exhibit excellent tensile strength, tensile modulus, electromagnetic shielding effects and anti-static effects, and the like.

Method for producing superficially crystalline spherical granules by means of air-cooled hot die face pelletizing and apparatus for carrying out the method

A method and a device for producing superficially crystalline spherical granules by means of air-cooled hot die face pelletizing in a cutting chamber. A crystallizable plastic material can be melted and then extruded through a perforated plate. During the air-cooled hot die face pelletizing, at least one cutting blade can be moved relative to the perforated plate. The perforated plate can be temperature-controlled while maintaining a viscosity of the plastic material within nozzle openings. A superficial cooling to a crystal nucleation temperature of the dry-cut granules is performed by means of a centripetally inflowing process gas. The crystal nucleation temperature is below an optimum crystal growth temperature and above a glass transition temperature. By controlling the quantity of process gas at an adiabatic temperature, an average granule temperature is maintained in a range of an optimum crystal growth temperature.

Dehumidification method and apparatus

A method and an apparatus for the dehumidification and/or drying of plastic material in the form of granules and/or micro-granules and/or powder and/or flakes or similar are described, with at least one hopper for dehumidifying/drying the plastic material, a generator of a process fluid that passes through the hopper, at least two molecular sieves towers arranged in parallel and operating alternately to dehumidify the process fluid, and at least one source of a regeneration fluid by heating the molecular sieves. The invention allows to improve the energy efficiency of the regeneration cycle of molecular sieves.

Materials for powder-based additive manufacturing processes

A multi-component micro-pellet useful as a consumable material for making objects by powder based additive manufacturing is disclosed. A method of making said micro-pellet is also disclosed. An object made by using said micro-pellets is also disclosed.

Delayed Release of Resin Curing Agent

A variety of systems, methods and compositions are disclosed for delayed release of a resin curing agent. An example method may comprise introducing a treatment fluid comprising a resin and delayed release curing agent particulates into a subterranean formation, wherein the delayed release curing agent particulates comprises a carrier, a curing agent disposed on the carrier, and a coating; degrading the coating; and curing the resin in the subterranean formation. 1. A method comprising:introducing a treatment fluid comprising a resin and delayed release curing agent particulates into a subterranean formation, wherein the delayed release curing agent particulates comprises a carrier, a curing agent disposed on the carrier, and a coating;degrading the coating; andcuring the resin in the subterranean formation.2. The method of claim 1 , wherein the treatment fluid is introduced into the subterranean formation at or above a fracture pressure.3. The method of claim 1 , wherein the resin cures to consolidate formation particulates.4. The method of claim 1 , wherein the resin cures to form agglomerates of cured resin and proppant in one or more fractures in the subterranean formation.5. The method of claim 1 , wherein the resin comprises at least one resin selected from the group consisting of epoxy based resins claim 1 , novolak resins claim 1 , polyepoxide resins claim 1 , phenol-aldehyde resins claim 1 , urea-aldehyde resins claim 1 , urethane resins claim 1 , phenolic resins claim 1 , furan resins claim 1 , furan/furfuryl alcohol resins claim 1 , phenolic/latex resins claim 1 , phenol formaldehyde resins claim 1 , polyester resins and hybrids and copolymers thereof claim 1 , polyurethane resins and hybrids and copolymers thereof claim 1 , acrylate resins claim 1 , and combinations thereof claim 1 , and wherein the curing agent comprises at least one curing agent selected from the group consisting of aliphatic amines claim 1 , aliphatic tertiary amines claim 1 , ...