ЖИДКИЕ СМЕСИ СТАБИЛИЗАТОРОВ

Настоящее изобретение относится к способам для обеспечения стабильных жидких смесей а) пентаэритритол тетракис(3-(3,5-ди-трет-бутил-4-гидроксфенил)пропионата, b) октадецил 3-(3,5-ди-трет-бутил-4-гидроксфенил)пропионата и с) трис-(2,4-ди-трет-бутилфенил)фосфита, которые могут найти применение в химической промышленности. Первый способ включает получение твердой смеси, которая содержит от приблизительно 2 до приблизительно 3 весовых частей а), от приблизительно 2 до приблизительно 3 весовых частей b) и от приблизительно 2 до приблизительно 12 весовых частей с), нагревание смеси до температуры 185°C или выше в течение периода времени, достаточного для получения прозрачной жидкой смеси а), b) и с), охлаждение жидкой смеси до температуры от 90°C до 140°C и поддержание жидкой смеси при температуре от 90°C до 140°C. Второй способ включает получение твердой смеси, которая содержит от приблизительно 2 до приблизительно 3 весовых частей а) и от приблизительно 2 до приблизительно 3 весовых частей ...

СПОСОБ ПОЛУЧЕНИЯ НЕФТЕПОЛИМЕРНЫХ КОМПОЗИЦИОННЫХ ТЕРМОРЕЗИСТИВНЫХ МАТЕРИАЛОВ И УСТАНОВКА ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

Изобретение может быть использовано при производстве терморезисторов и предохранителей датчиков температуры. Способ получения нефтеполимерных композиционных материалов на основе гудрона и полиэтилена включает предварительное установление графических зависимостей удельного электрического сопротивления и температуры размягчения композиционного материала от его состава. По установленным графическим зависимостям проводят подбор состава композиционного материала. Затем получают указанный состав путем смешения гудрона и полиэтилена на установке получения нефтеполимерного композиционного материала. Установка включает блок подготовки сырья, состоящий из сырьевых емкостей 1, 11, 9, сырьевых насосов 8, 10 и дезинтегратора 2, блок смешения, состоящий из двух реакторов 3 и 4 периодического действия с рамными мешалками, и блок вывода товарной продукции. Изобретение обеспечивает получение нефтеполимерных терморезистивных композиционных материалов с заранее заданными удельным электрическим сопротивлением ...

СТАБИЛИЗИРУЮЩИЕ КОМПОЗИЦИИ, СОДЕРЖАЩИЕ ЗАМЕЩЕННЫЕ ХРОМАНОВЫЕ СОЕДИНЕНИЯ, И СПОСОБЫ ПРИМЕНЕНИЯ

Изобретение относится к способу улучшения технологической стабильности при одновременном снижении или предотвращении изменения цвета полимерного органического материала, подлежащего переработке, в процессе формования, выбранного из группы, состоящей из литьевого формования, выдувного формования, формования с рулона на рулон, литьевого формования металла, прессования в форме, литьевого прессования, формования окунанием, формования с помощью газа, литьевого формования со вставками, микроформования, реакционно-литьевого формования, двухступенчатого литьевого формования, причем способ включает добавление к указанному полимерному органическому материалу в количестве, эффективном для улучшения технологической стабильности при снижении или предотвращении изменения цвета, композиции добавки, содержащей хромановое соединение, соответствующее Формуле (V), где Rпредставляет собой COR, где Rвыбран из H или C-Cалкила; Rпредставлен в случаях при n = от 0 до 3 в ароматической части Формулы V и в каждом ...

СПОСОБ ПОЛУЧЕНИЯ АМИНОМЕТИЛИРОВАННЫХ БИСЕРНЫХ ПОЛИМЕРИЗАТОВ

Настоящее изобретение относится к способу получения аминометилированных бисерных полимеризатов. Указанный способ включает следующие стадии: а) превращение в бисерный полимеризат мономерных капелек из смеси, содержащей по меньшей мере одно моновинилароматическое соединение, по меньшей мере одно поливинилароматическое соединение и по меньшей мере один инициатор; b) взаимодействие полученного бисерного полимеризата по меньшей мере с одним соединением формулы (I)где R1обозначает алкил с 1-3 атомами углерода или водород, и по меньшей мере с одним соединением формулы (II)в которой n равно от 2 до 100, в присутствии по меньшей мере одного алифатического насыщенного галогенангидрида карбоновой кислоты и в присутствии алифатических насыщенных карбоновых кислот и по меньшей мере одного катализатора Фриделя-Крафтса; с) гидролиз полученного фталимидометилированного бисерного полимеризата до аминометилированного бисерного полимеризата. Указанный способ позволяет получать аминометилированные бисерные ...

Способ модификации полипропилена

Настоящее изобретение относится к способу модификации полипропилена. Данный способ включает введение в полипропилен разветвленного полисульфона в присутствии бисмалеимида с последующим экструдированием в диапазоне температур 200-290°С. Разветвленный полисульфон получают поликонденсацией 4,4’-дихлордифенилсульфона с бисфенолом в присутствии фенолфталеина при следующем соотношении полипропилена и полисульфона: полипропилен 95-98 вес.%; разветвленный полисульфон 2-5 вес.%. В качестве бисфенола используют 4,4'-диокси-2,2-дифенилпропан, или 4,4'-диоксидифенилсульфон, или 4,4'-диоксидифенилкетон, или 4,4’-диоксидифенил. Технический результат – разработка способа модификации полипропилена и улучшение эксплуатационных характеристик полипропилена бытового и промышленного назначения (увеличение теплостойкости, устойчивости к агрессивным средам и к осмотическому проникновению растворителя (набуханию)). 4 з.п. ф-лы, 1 табл., 1 пр.

СПОСОБ ПРОИЗВОДСТВА НАНОФИБРИЛЛЯРНЫХ ЦЕЛЛЮЛОЗНЫХ ГЕЛЕЙ

... 1. Способ производства нанофибриллярных целлюлозных гелей, характеризующийся стадиями:(а) подготовки целлюлозных волокон;(b) подготовки по меньшей мере одно наполнителя и/или пигмента;(с) объединения целлюлозных волокон и по меньшей мере одного наполнителя и/или пигмента;(d) фибриллирования целлюлозных волокон в присутствии по меньшей мере одного наполнителя и/или пигмента до тех пор, пока не образуется гель.2. Способ по п. 1, отличающийся тем, что вязкость по Брукфилду полученного нанофибриллярного целлюлозного геля является более низкой, чем вязкость по Брукфилду соответствующей нанофибриллярной целлюлозной суспензии, которая была фибриллирована в отсутствие наполнителей и/или пигментов.3. Способ по любому из пп. 1 или 2, отличающийся тем, что целлюлозные волокна представляют собой волокна, содержащиеся в целлюлозной массе, выбранной из группы, включающей эвкалиптовую целлюлозную массу, еловую целлюлозную массу, сосновую целлюлозную массу, буковую целлюлозную массу, конопляную целлюлозную ...

Способ создания высокопрочной двухкомпонентной нити на основе пара-арамидных и полиэтиленовых высокомолекулярных волокон

Изобретение относится к способу создания высокопрочной нити на основе пара-арамидных и полиэтиленовых волокон. Изобретение может применяться в процессе изготовления высокопрочных материалов и изделий различного типа, например текстильных материалов для защитных изделий, каркасов различных транспортных средств, магистральных трубопроводов, в том числе высокого давления. Способ создания кевларо-полиэтиленовой нити включает обработку неравновесной низкотемпературной плазмой пара-арамидных волокон и полиэтиленовых волокон. Затем прошедшие плазменное воздействие нити скручиваются в двухкомпонентную нить, в центре которой находятся полиэтиленовые волокна высокого давления, а по периферии пара-арамидные. После этого скрученные в нить пара-арамидные волокна и полиэтиленовые волокна высокого давления обрабатываются неравновесной низкотемпературной плазмой, что позволяет в зависимости от заданных требований получить гидрофобную или гидрофильную нить. Техническим результатом изобретения является повышение ...

СПОСОБ ПОЛУЧЕНИЯ АМИНОМЕТИЛИРОВАННЫХ БИСЕРНЫХ ПОЛИМЕРИЗАТОВ

ТЕРМОПЛАСТИЧЕСКИЙ ПОЛИУРЕТАНОВЫЙ ТЕРМОПЛАВКИЙ КЛЕЙ

КОМПОЗИЦИИ, СОДЕРЖАЩИЕ МИКРОГЕЛИ НА ОСНОВЕ БУТАДИЕН-НИТРИЛЬНОГО КАУЧУКА

СПОСОБ ПОЛУЧЕНИЯ СОСТАВА КОМПОЗИЦИОННОГО ПОЛИМЕРНОГО МАТЕРИАЛА С ЗАДАННЫМИ СВОЙСТВАМИ

КОМПОЗИЦИЯ ПИГМЕНТОВ, РАСТВОРИМЫХ В ВОДЕ И/ИЛИ ОРГАНИЧЕСКИХ РАСТВОРИТЕЛЯХ

... 1. Композиция, содержащая:(а) от 30 до 95% по массе, по меньшей мере, одного неорганического и/или органического пигмента, и(б) от 0,5% до 30% по массе, по меньшей мере, диспергирующего вещества;и, по меньшей мере, один компонент, выбранный из:(в) от 2 до 50% по массе, по меньшей мере, одного ускоряющего растворение вещества;(г) от 0 до 50% по массе, по меньшей мере, одного неорганического наполнителя;(д) от 0 до 10% по массе, по меньшей мере, одного связующего вещества;(е) от 0 до 50% по массе, по меньшей мере, одной акриловой, альдегидной и/или кетоновой смолы;(ж) от 0,5 до 20% по массе, по меньшей мере, одного реологического вещества;(з) от 0,5 до 10% по массе, по меньшей мере, одного противовспенивателя.2. Композиция по п.1, отличающаяся тем, что, по меньшей мере, один неорганический и/или органический пигмент (а) присутствует в количестве от 40 до 90% по массе; по меньшей мере, одно диспергирующее вещество (б) присутствует в количестве от 0,5 до 20% по массе; по меньшей мере, одно ...

СПОСОБ РАСТВОРЕНИЯ РРТА В СЕРНОЙ КИСЛОТЕ С ПОМОЩЬЮ ДВУХШНЕКОВОГО ЭКСТРУДЕРА

... 1. Способ растворения РРТА или его сополимеров в серной кислоте с использованием двухшнекового экструдера, обладающего транспортирующими, смешивающими и месильными элементами, включающего зону ввода, промежуточную зону, зону смешения, зону обратного транспортирования, зону дегазирования и зону подъема давления, где способ включает стадии транспортирования РРТА или его сополимера в зону ввода при пропускной способности достаточно низкой для предотвращения попадания серной кислоты в зону ввода; введения серной кислоты в зону ввода или промежуточную зону; по существу, полного заполнения зоны смешения для предоставления достаточного времени для смешения и растворения РРТА или его сополимера в серной кислоте, чтобы получить раствор РРТА или его сополимера в серной кислоте; создания после зоны смешения зоны обратного транспортирования для получения пробки продукта между зоной смешения и зоной дегазирования; создания тонкой пленки раствора РРТА или его сополимера в серной кислоте в зоне дегазирования ...

VERFAHREN ZUR HERSTELLUNG VON VERBUNDWERKSTOFFEN AUS FLUOROPOLYMER

VERFAHREN ZUR HERSTELLUNG VON VINYLCHLORIDPOLYMERISATEN MIT ERHOEHTER THERMISCHER STABILITAET

Beschichtungsverfahren und härtbare Zusammensetzungen

KAUTSCHUKZUSAMMENSETZUNG UND VERFAHREN ZU DEREN HERSTELLUNG

Verfahren zum Herstellen von elastomeren Formteilen durch Hitzehaerten von Organopolysiloxan-Formmassen

SPRÜHGETROCKNETE POLYMERAGGLOMERATE UND DEREN ANWENDUNGSVERFAHREN

PROCESS FOR REMOVING LINEAR POLYMERS IN GRANULAR FORM FROM A TREATMENT ZONE

POLYOLEFIN-DISPERSIONEN UND EIN VERFAHREN ZU DESSEN HERSTELLUNG

Polymerpolyol, flammhemmendes Polyurethanharz und daraus hergestellter Schaum

VERFAHREN ZUR HERSTELLUNG ELASTISCHER SCHICHTSTOFFE

Improvements in the production of polymeric materials

Polytriazoles, e.g. those prepared according to Specifications 612,609 and 613,020, are heated in an inert organic liquid, heating being discontinued while the polymer is still fusible and soluble. The temperature of heating may be 200 DEG to 300 DEG C., e.g. 210 DEG or 250 DEG C., and the period may be 10 or 20 hours or more. The organic liquids may be either solvents or nonsolvents for the polymers, e.g. polyhydroxy pylene glycol or glycerol, phenolic compounds such as phenol, cresols or xylenols, or high-boiling hydrocarbon oils such as those boiling at 250-300 DEG C. or above. The quantity of liquid may be 100 to 200 per cent of the weight of polymer. The modified polymers, which are of increased intrinsic viscosity, may be used for making films, filaments, and other articles as described in the above-mentioned Specifications. In examples (1), (2), (3) a polyaminotriazole of intrinsic viscosity 0.32 (prepared by heating sebacic dihydrazide in the presence of hydrazine hydrate) is heated ...

INJECTION MOULDABLE THERMOSETTABLE COMPOSITION AND PROCESS

... 1416605 Pellets for moulding GENERAL ELECTRIC CO 5 Nov 1973 [6 Nov 1972] 51255/73 Heading B5A [Also in Division C3] A pelletized, heat fusible, thermosettable, injection mouldable composition comprising a thermosettable phenol-aldehyde resin and a filler is prepared by feeding the composition to a screw extruder, advancing the composition through the extruder at a temperature of less than 290‹ F. for a sufficient time to render the resin molten, extruding the composition through a die orifice and comminuting the extrudate into pellets of at least 1/ 16 inch in diameter and mixing the pellets with a minor amount of a metallic salt of a C 8 -C 20 fatty acid. The extrudate may be rapidly cooled as it is comminuted into pellets. The feed material may be premixed or the ingredients may be fed separately to the extruder either at room temperature or at an elevated temperature. The pellets generally have a bulk factor of less than 2À3. The metal salt may form a coating on the pellets.

PROCESS FOR PRODUCING POLYVINYL CHLORIDE

... 1416111 Treating PVC NORSK HYDRO AS 5 Oct 1973 [6 Oct 1972] 46696/73 Heading C3P Monomeric vinyl chloride is added to a dispersion of preformed PVC in an amount of 100-300% of monomer based on polymer, such polymer consisting of primary particles of size 0À1-1 Á in agglomerates of 80-150 Á and having a plasticizer absorption of at least 35 phr. and polymerizing the monomer in and on the polymer particles in the presence of less than 0À05% by weight (based on water) of a dispersing agent. The product has improved hand processing properties and increased density.

PROCESS FOR THE PRODUCTION OF SPONTANEOUSLY CROSS-LINKING HIGHLY REACTIVE POWDER LACQUER BINDERS

... 1353351 Isolating cross-linkable resins from their solutions BAYER AG 19 April 1971 [7 Feb 1970] 20380/71 Heading C3P [Also in Division B1] A process for the production of a substantially solvent-free, spontaneously cross-linking, highly reactive resin from a solution of the resin comprises continuously concentrating the solution through evaporation, optionally under reduced pressure, for 2 to 6 minutes residence time in a self-cleaning screw evaporator, the resin being heated both by external heating and through internal friction to a temperature not exceeding 120‹C. The resin, which has a softening point of from 75‹ to 110‹ C. and which begins to cross-link at a temperature of around 120‹ C., is the reaction product of a copolymer of (a) an olefinically unsaturated monomer containing a hydroxyl group, (b) an alkyl or cycloalkyl ester of an ,#-olefinically unsaturated carboxylic acid having 3 to 5 carbon atoms and optionally (c) one or more other comonomers, and an alkoxymethyl isocyanate ...

Polymeric materials

A composite material including magnetic particles which provides structural and magnetic capabilities

PROCESS FOR THE PRODUCTION OF HYDROLYTICALLY RESISTANT FLUORO CARBONS

... 1440605 Fluorinated hydrocarbon polymers MARCHEM INC H DITTRICH B ANDREAE and R E WAGNER 11 Sept 1973 42691/73 Heading C3P Hydrolysis-resistant fluorinated hydrocarbon polymers are obtained by (a) hydrolysing the fluorinated material with a basic solution, e.g. aqueous NaOH, at a temperature above 50‹ C.; (b) washing the hydrolysed product with water to remove the basic solution; and (c) refluorinating the washed material by contact in an enclosed reaction chamber with gaseous fluorine or a gaseous inorganic fluoride introduced into the atmosphere surrounding said material at a rate not more than that resulting in 6% concentration in said atmosphere at the end of 30 minutes after fluorination has begun, said reaction chamber being maintained throughout at a temperature below the decomposition temperature of said material. The process eliminates easily hydrolysable groups, and may be effected on powders or shaped objects. In one embodiment the initial fluorination of the material prior to ...

Improvements in or relating to the manufacture of moulding compositions from phenol-aldehyde synthetic resins

A moulding-composition is produced from a hardenable phenol-aldehyde resin in the resitol stage by subjecting the resin in a finely divided form and in the presence of a quantity of water or other non-solvent liquid insufficient to produce an emulsion to an intensive mixing treatment, e.g. on cold or heated calender rolls. The product is solid and dry-looking and may be moulded without fillers. Xylene, toluene, or an aqueous suspension of toluene may be used instead of water. The non-solvent liquid may be added before, during, and after mixing, and, during mixing, differently coloured resin, other natural or synthetic resins, plasticizers, oxidized castor oil, stearic acid, spermaceti, or dyes may be added, e.g. dissolved or suspended in the non-solvent. The resitol may be prepared from phenol and formaldehyde solution by heating in the presence of calcium carbonate, boiling down to separate the resin, and heating to produce a water-containing resitol which may be treated as such or after ...

METHOD OF MOULDING PLASTICS ARTICLES FROM PARTICLES OF THERMOPLASTICS MATERIAL

... 1528408 Surface treatment of polymer particles MASSACHUSETTS INSTITUTE OF TECHNOLOGY 20 Oct 1976 [5 Nov 1975] 43470/76 Heading C3L [Also in Division B5] A moulding material for use in a radio frequency powder sintering process comprises plastics particles which have been treated to produce surfaces having increased heating. Where a non-polar material is to be used in a dielectric sintering process then the particles are either coated with a polar plastics or are chemically treated to produce a polar surface layer. Quoted examples of non-polar materials are polyolefin, polystyrene, fully fluorinated polymers or neoprene and quoted examples of surface coatings are PVC or polyvinylidene chloride. A quoted surface treatment is by chlorine. Where a material is to be used in an inductive heating process then the surface of each particle is treated to give a coating forming a high magnetic loss. It is preferred for the ratio of the average particle radius to the radius of the untreated core to ...

PROCESS FOR THE AFTER-TREATMENT OF PASTE-FORMING POLYMERS VINYL CHLORIDE

Improvements in the drying of wet fine chips or powder particles of a thermoplastic polymer

... 1,045,440. Polymer melt supply apparatus; moulding thermoplastic polymer sheets. KANEGAFUCHI BOSEKI KABUSHIKI KAISHA. May 22, 1964 [May 27, 1963], No. 21229/64. Headings B5A and B5B. Fine chips or fine powder particles of a thermoplastic polymer are dried in a liquid heat medium which is neither reactive nor cosoluble with the polymer and then melted. Preferably, melting is carried out in a liquid heat medium the same as that used in the drying but at an elevated temperature, using a melting device having a grate. The liquid heat medium desirably has a viscosity of 100 200 centistokes at 25‹ C. and may be a silicone oil or spindle oil. Specified polymers include homopolymers, copolymers and blends of polyamides, polyethers, polyesters, polycarbonates, polyethylene, polypropylene, polyvinyl chloride and polyvinylidene chloride. In Fig. 1(A), chips are fed from hopper 1 through rotary feeder 2 into the drying tank 4 which is filled with silicone oil held at a temperature below the polymer ...

Cellulosic fiber composites.

Composites of a resin and texturized cellulosic or lignocellulosic fiber, and methods for forming the composites, are disclosed ...

PHASE CONVERSION SOLID PICTURE-WITNESSING MATERIAL

PROCEDURE FOR THE DISSOLUTION OF PPTA IN SULFURIC ACID USING A DOUBLE SCREW-TYPE EXTRUDING MACHINE

PROCEDURE FOR THE COMPOUNDIEREN OF POLYMERS

THERMOPLASTIC MATERIAL WITH ADJUSTABLE LIFE SPAN, MANUFACTURING PROCESS FOR IT AND PRODUCTS OF IT

PROCEDURE AND FORMULATION FOR THE ELASTOMER REINFORCEMENT

PROCEDURE FOR THE PRODUCTION OF POLY (ALPHA OLEFIN) - SOLUTIONS WITH HIGH MOLECULAR WEIGHT AS WELL AS PROCEDURES FOR THE PRODUCTION OF ARTICLES

ANTI-VIBRATION MASS, IN PARTICULAR FOR COMPOUND SYSTEMS, AND PROCEDURES FOR THEIR PRODUCTION

GRANULAR BUILDING MATERIAL MATERIAL, IN PARTICULAR FOR ROAD OR FLOOR MATS ON BITUMEN OR ASPHALT BASIS AS WELL AS PROCEDURE FOR ITS PRODUCTION

PROCEDURE FOR THE IMPROVEMENT OF THE COLD FLOW STABILITY OF POLYMERS

PROCEDURE FOR THE THERMAL SUBSEQUENT TREATMENT OF VERPASTBAREN POLYMERS OF THE VINYL CHLORIDE

HYDRATIERBARE POLYACRYLAMIDGELE.

PARTICLE OF HYDROPHOBEN POLYMERS, THE CAVITIES CONTAINING.

PROCEDURE FOR DRYING KLEINTEILIGER, EXPAND-CASH OF STYRENE POLYMERS.

WATER-DISPERSE-CASH BLOCKED ISOCYANATES

Procedure for manufacturing a warm-hardenable powdered bonding agent for shell moulds

MORPHOLOGY PRESERVATION AND FOR IT SUITABLE MATERIALS

INTERLACE-CASH FILM EDUCATION PREPARATIONS

HYDROPHILICALLY MODIFICATION POWDERED HIGH AND/OR ULTRAHIGH-MOLECULAR POLYETHYLENE

BAG CONTAINING A POWDERY OR PARTICULATE ELASTOMER MATERIAL, USED AS SUCH IN COMPOUNDING PROCESS

Fluorinated ethoxylated polyurethanes

The present invention comprises fluorinated ethoxylated polyurethanes of formula [R ...

Dispersion method for the preparation of particle reinforced polymer compositions

Method of preparing a particle dispersion within a polymer is disclosed. The dispersion may include core shell rubber particles and the polymer may include epoxies. The particles are capable of being substantially dispersed within the polymer so as to substantially inhibit agglomeration of the particles. Mechanical properties, such as toughness are improved while glass transition temperature and viscosity are not substantially impaired by the presence of the particles.

A method of toughening thermoplastic polymers and thermoplastic compositions produced thereby

Method and apparatus for using flow behaviour index to control polymer rheology and physical properties

Product and method for making polyolefin polymer dispersions

PURIFICATION OF SULPHONATED PHENOL-FORMALDEHYDE

Incorporation of adsorbents during extraction and/or hydration of hydrogel materials

IMPACT MODIFIED POLYCARBONAMIDES

Fluoropolymer thermoplastic meterial

PROCESS FOR THE PRODUCTION OF NANO-FIBRILLAR CELLULOSE GELS

The present invention relates to a process for the production of nano-fibrillar cellulose gels by providing cellulose fibres and at least one filler and/or pigment; combining the cellulose fibres and the at least one filler and/or pigment; and fibrillat-ing the cellulose fibres in the presence of the at least one filler and/or pigment until a gel is formed, as well as the nano-fibrillar cellulose gel obtained by this process and uses thereof.

COMPOSITION COMPRISING AN ANIONIC POLYMERIC MATERIAL AND THE SALT OF A SATURATED MONOCARBOXYLIC ACID HAVING 6 TO 22 CARBON ATOMS

The invention relates to a coating composition for the coating or binding of pharmaceutically, nutraceutically or cosmetically active ingredients, comprising (a) an anionic polymeric material, and (b) one or more salts of saturated monocarboxylic acids having 6 to 22 carbon atoms, characterized in that the amount of the salts of the monocarboxylic acids in the composition corresponds to 3 to 50 mol percent of the amount of anionic groups in the polymeric material. The invention also relates to a process for preparing a dispersion out of the composition, as well as the use of said composition in enteric-coated solid dosage forms.

STABLE DISPERSIONS OF POLYOLS CONTAINING POLYVINYLCHLORIDE AND PROCESS FOR PREPARING THEM

A stable dispersion of polyols, containing dispersed particles of polyvinylchloride, and a process for producing it. The dispersion has a viscosity of lower than 10,000 mPa x sec. The particles have a size comprised within the range of from 1 to 10 micrometers and are soaked with the same polyol as used for preparing the dispersion. The dispersion is particularly suitable for producing elastomeric polyurethanes and/or rigid or flexible polyurethane foams.

PROCESS FOR THE AFTER-TREATMENT OF PASTE-FORMING POLYVINYL CHLORIDE POWDERS

A process is disclosed for the after-treatment of a paste-forming plastics powder of a vinyl chloride polymer obtained by the polymerisation of vinyl chloride with or without other copolymerisable monomers in aqueous solution in the presence of a water-soluble catalyst and an alkali metal salt of a fatty acid as emulsifier, followed by spray-drying. In the process, the plastics powder is treated with water in a weight ratio of powder : water of from 1 : 2 to 1 : 15, and is then separated from the water and dried. The eventual pastes exhibit a viscosity one or more orders of magnitude lower than pastes formed from untreated plastics powder.

PROCESS FOR THE AFTER-TREATMENT OF PASTE-FORMING POLYVINYL CHLORIDE POWDERS

A process is disclosed for the after-treatment of a paste-forming plastics powder of a vinyl chloride polymer obtained by the polymerization of vinyl chloride with or without other copolymerizable monomers in aqueous solution in the presence of a water-soluble catalyst and an alkali metal salt of a fatty acid as emulsifier, followed by spray-drying. In the process, the plastics powder is treated with a gas which generates an acid in aqueous solution, for example hydrogen chloride, carbon dioxide or sulfur dioxide. The eventual pastes exhibit a viscosity one or more orders of magnitude lower then pastes formed from untreated plastics powder.

MULTI-MODAL EMULSIONS OF WATER-SOLUBLE POLYMERS

PARTICULATE PLASTICIZED RUBBER-BLACK MASTERBATCH

POLYMER CARRIERS AND PROCESS

The present invention relates to a hollow sphere polymer composition suitable for absorbing active ingredients including oily substances, hydrophilic materials, hydrophobic materials and combinations thereof. A process for loading one or more active ingredients into one or more hollow sphere polymers under high shear mixing and a process for preparing flow powders including polymer carriers comprising one or more active ingredients is described.

PRODUCTION METHODS FOR GLASSY LIQUID-CRYSTALLINE EPOXY RESIN AND GLASSY LIQUID-CRYSTALLINE EPOXY RESIN COMPOSITION, STORAGE METHODS FOR LIQUID-CRYSTALLINE EPOXY RESIN AND LIQUID-CRYSTALLINE EPOXY RESIN COMPOSITION, GLASSY LIQUID-CRYSTALLINE EPOXY RESIN AND GLASSY LIQUID-CRYSTALLINE EPOXY RESIN COMPOSITION, LIQUID-CRYSTALLINE EPOXY RESIN AND...

A method for producing a glassy liquid-crystalline epoxy resin, the method comprising a step in which a liquid-crystalline epoxy resin is cooled to change the state to a glassy state.

HIGH MOLECULAR WEIGHT POLY(ALPHA-OLEFIN) SOLUTIONS AND ARTICLES MADE THEREFROM

A robust process for the continuous preparation of solutions of high molecul ar weight UHMW PO that is capable of producing strong materials at high production capacity, is conservative of capital and energy requirements, and the articles made therefrom.

DISPERSION METHOD FOR THE PREPARATION OF PARTICLE REINFORCED POLYMER COMPOSITIONS

Method of preparing a particle dispersion within a polymer is disclosed. The dispersion may include core shell rubber particles and the polymer may include epoxies. The particles are capable of being substantially dispersed within the polymer so as to substantially inhibit agglomeration of the particles. Mechanical properties, such as toughness are improved while glass transition temperature and viscosity are not substantially impaired by the presence of the particles.

AQUEOUS EMULSION CONTAINING SILICONE RUBBER PARTICLES AND PROCESS FOR PREPARING THE SAME

An aqueous silicone rubber base emulsion which contains polymer particles comprising 0.1 to 45 wt.% vinyl (co)polymer (A) and 55 to 99.9 wt.% silicone rubber (B) and in which the polymer particles have a number-average particle diameter of 0.008 to 0.1 .mu.m, the coefficient of variation in particle diameter distribution is 65% or lower, and an emulsifier is contained in an amount of up to 10 parts by weight per 100 parts by weight of the silicone rubber (B); and an aqueous emulsion containing silicone rubber base graft copolymer particles which is obtained by graft-polymerizing a vinyl monomer in the presence of the polymer particles. Since these emulsions have a small number-average particle diameter, a narrow particle diameter distribution, and a low emulsifier content, they effectively exhibit properties inherent in silicone rubbers without posing problems attributable to emulsifiers, e.g., discoloration. They are useful as an impact modifier, softener, fiber treatment, hair treatment ...

Verfahren zur Herstellung von wärmebeständigem Polystyrol.

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.

Klebstoff.

Verfahren zur Verbesserung der Stabilität von Polyolefinen

Verfahren zur Herstellung von Polyamidformkörpern mit homogener, feinkristalliner Struktur und vergrösserter Oberflächenhärte

Verfahren zur Herstellung von hochmolekularen linearen Polycarbonaten

Sub-zero treatment for altering microstructure of materials - esp for metals polyurethane and nylon involves controlled cooling to avoid cracking, maintaining at the low temp, then warming to r.t

The microstructure of a non-textile matl. is altered by a cold-treatment, the matl. being cooled from normal temp. to a very low temp. using a speed which is not so drastic that fissures or cracks occur, held for a prescribed time at the low temp. and then restored to room temp. The matl. is pref. held 18-30 hrs. at the low temp., esp. at-196 degrees C, and it may be cooled in 2 or 3 stages to a temp. above or below the threshold temp. or the 2 threshold temps. at which cracks form. A pref. cooling velocity is 1.56-2.22 degrees C/minute to 5.94-8.33 degrees C/minute. The matl. is pref. metal, nylon, or polyurethane. Esp. for metals, for the conversion of iron alloys from an austenitic structure to a martensitic structure, e.g. to improve wear-resistance. A pref. method of cooling consists of the gradual immersion of the matl. in a cold liq., esp. liq nitrogen.

Compositions de polyoléfines thermoplastiques et leur production

Verfahren zum Glanzstabilmachen von Wachs-Copolymer-Gemischen

Verfahren zur Herstellung von thermoplastischen Formmassen auf Basis gesättigter linearer Polyester

Verfahren zum Behandeln von Polyamidgranulat

Process for the removal of residual monomers from homopolymers, copolymers or graft polymers containing at least 50% by weight of polymerised vinyl chloride

PROCEDURE FOR THE THERMAL SUBSEQUENT TREATMENT OF VERPASTBAREN POLYMERS OF THE VINYL CHLORIDE.

BAG, CONTAINING A POWDERED OR A TEILCHENFOERMIGES ELASTOMER MATERIAL.

Recondensation of polyamide 6,6 granules

For the recondensation of polyamide 6,6 granules in an eddy layer reactor (1), with a nitrogen carrier gas, part of the carrier gas is taken from the main stream at a temp. of 20-200 deg C. It is passed through a water gas washing column (15) to be given a dew point of 10-80 deg C. and returned to the main stream of carrier gas.

Mixing device, comprising in particular for rubber processing, and a method for its operation.

Die Erfindung betrifft eine kontinuierliche Mischvorrichtung (1) insbesondere zur Kautschukverarbeitung, mit zumindest einemMisch- und/oder Knetextruder. Die Mischvorrichtung (1) hat ein Gehäuse (2) mit einer zentralen Öffnung (3) für einen Mischraum (4), welche einen im Betrieb rotatorisch umlaufend und translatorisch reversierend angetriebenen Kneter aufnimmt. In das Gehäuse (2) sind zwei Speisewalzen (6) integriert, die sich über einen Großteil der axialen Länge des Mischraums (4) erstrecken und die der Zuführung eines strangförmigen Kautschukmaterials dienen. Durch eine umlaufende Schneide an dem Kneter wird der Strang des zugeführten Kautschukmaterials unterbrochen. Die zugeführte Menge des Materialstrangs wird daher allein mittels der Speisewalzen (6) bestimmt und im Betrieb durch eine Drehzahländerung eingestellt. Infolgedessen wirkt sich eine Änderung der Drehzahl des Kneters nicht auf den Durchsatz, sondern lediglich auf den Grad der Durchmischung aus, die somit optimal auf ein ...

METHOD OF TREATMENT OF POLYETHYLENE

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.

Apparatus and method for producing thermoplastic elastomer, elastomers produced thereby and articles produced from the elastomers

A method for producing thermoplastic elastomer is disclosed and comprises the step of: blending a mixture including particles of vulcanized rubber material and a molten thermoplastic material such that the rubber material is subjected to mechanical shearing forces and the surfaces of the rubber particles undergo homolytic bond scission to form chains of free radicals which cross-link with the thermoplastic material. Apparatus for carrying out the method, elastomers produced by the method and articles produced from the elastomers are also disclosed.

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.

Organosol composition of fluorine-containing polymer

The present invention provides an organosol composition that is stable even in the case that the PTFE particle content is high. The present invention relates to an organosol composition of PTFE particles, comprising PTFE particles (A), a polymer (B), and an organic solvent (S), wherein (1) the polymer (B) is soluble in the organic solvent (S), (2) the amount of the PTFE particles (A) is not lower than 50% by mass of the total amount of the PTFE particles (A) and the polymer (B), and (3) the precipitation ratio of the PTFE particles after 48 hours is not higher than 60% when the total solids concentration of the PTFE particles (A) and the polymer (B) is 5% by mass.

Process of Producing Thermoplastic Starch/Polymer Blends

A process of producing a thermoplastic starch/polymer blend involves introducing dry starch into a twin-screw extruder at a first location along the extruder, introducing a plasticizer into the twin-screw extruder at a second location along the extruder downstream of the first location to form a starch paste and then gelatinizing the starch paste in the extruder to form thermoplastic starch, and, introducing dry polymer at ambient temperature into the twin-screw extruder at a third location along the extruder downstream of the second location to form a blend with the thermoplastic starch in the extruder.

Viscoelastic gels as novel fillers

Biomaterials obtainable by mixing the autocrosslinked derivative of hyaluronic acid (ACP) with the derivative (HBC) of hyaluronic acid crosslinked with 1,4-butanediol diglycidyl ether (BDDE) in the weight ratio of between 10:90 and 90:10 as novel fillers.

Homogenous dispensing process for an epoxy-composition with high filler content

The present invention relates to a process for the production of a ready-to-use epoxy composition having a filler content of at least 55 vol.-%, relative to the complete ready-to-use epoxy composition, which comprises: providing a liquid A, which comprises at least one epoxy resin, providing a liquid B, which comprises at least one curing agent, providing a solid component C, which comprises at least one filler, wherein in a first step one of the liquids A or B is filled in a mixing container, in a second step the solid component C is deposited on top of the liquid in the mixing container, in a third step the remaining liquid A or B is deposited on top of the solid component C, and in a fourth step the components are mixed to obtain the ready-to-use epoxy composition.

Method and device for providing a raw material for the production of pet containers

A method and a device for providing a raw material for the production of PET containers, the raw material being mixed from recycled PET (r-PET) and virgin PET (v-PET), where in order to optimize both the plant and the method, v-PET is added in a quantitatively controlled manner to the r-PET prior to the last heating of the r-PET or to the heated r-PET.

Polyolefin polylactic acid in-situ blends

Polymeric compositions and methods of forming the same are described herein. The methods generally include contacting a polyolefin and a lactide in the presence of a catalyst within an extruder under conditions sufficient to polymerize the lactide and form a polymeric composition including polyolefin and polylactic acid.

Methods of Modifying Agricultural Co-Products and Products Made Therefrom

In a method of producing a polymer composite, a polymer is provided in a liquid state such as a molten state. A plant material, such as soymeal, is provided that includes protein and carbohydrate. A reactive protein denaturant is also provided. A dispersion of the plant material and the reactive protein denaturant is formed in a matrix of the liquid polymer. The plant material is reacted to bond with the reactive protein denaturant, and the reactive protein denaturant is reacted to bond with the polymer. The polymer is solidified to produce the polymer composite.

Polyphosphonate and copolyphosphonate additive mixtures

Disclosed are polymer compositions including polycarbonates, polyphosphonates, copoly(phosphonate carbonate)s, and organic salts and/or silicone containing compounds that exhibit a superior combination of properties compared to prior art.

Superabsorbent polymers and methods of making the same

The invention relates to producing a superabsorbent polymer comprising (I) producing a (meth)acrylic acid comprising the steps of (a) synthesizing a crude (meth)acrylic acid phase; (b) distillatively working-up the crude (meth)acrylic acid phase to obtain a (meth)acrylic acid phase and a dimer phase comprising (meth)acrylic acid dimers and/or (meth)acrylic acid oligomers; (c) splitting at least a part of the (meth)acrylic acid dimers or of the (meth)acrylic acid oligomers or both from the dimer phase to obtain a (meth)acrylic acid-comprising a low boiling phase and a high boiling phase comprising less (meth)acrylic acid than the low boiling phase; (d) separating at least a part of the (meth)acrylic acid from the low boiling phase by forming crystals to obtain a pure (meth)acrylic acid, and a residue; (II) polymerizing a monomer phase comprising the pure (meth)acrylic acid to obtain a polymer phase; and (III) working-up the polymer phase to obtain the polymer.

Asphalt composition containing ground tire rubber

We disclose a method of making an asphalt composition containing large quantities of ground tire rubber. Over 20% GTR by weight can be used in the asphalt composition without the GTR settling out. The method comprises a series of heating and blending and using a GTR stabilizer.

METHOD FOR PRODUCING THERMOPLASTIC RESIN COMPOSITION

A method for producing a thermoplastic resin composition, comprising the steps of: (I) melt-kneading (A) acid anhydride-modified or epoxy-modified rubber with (B) ethylene-vinylalcohol copolymer resin to prepare a first resin composition in which (A) acid anhydride-modified or epoxy-modified rubber is dispersed in (B) ethylene-vinylalcohol copolymer resin, (II) crosslinking (C) crosslinkable elastomer while melt-kneading the crosslinkable elastomer with (D) polyamide resin to prepare a second resin composition in which crosslinked elastomer particles are dispersed in (D) polyamide resin, and (III) melt-mixing together the first resin composition with the second resin composition. The thermoplastic resin composition has excellent gas barrier properties, low-temperature durability, and fatigue resistance. 1. A method for producing a thermoplastic resin composition , comprising the steps of:(I) melt-kneading (A) acid anhydride-modified or epoxy-modified rubber with (B) ethylene-vinylalcohol copolymer resin to prepare a first resin composition in which (A) acid anhydride-modified or epoxy-modified rubber is dispersed in (B) ethylene-vinylalcohol copolymer resin,(II) crosslinking (C) crosslinkable elastomer while melt-kneading the crosslinkable elastomer with (D) polyamide resin to prepare a second resin composition in which crosslinked elastomer particles are dispersed in (D) polyamide resin, and(III) melt-mixing together the first resin composition with the second resin composition.2. The method for producing a thermoplastic resin composition according to claim 1 , in which (A) acid anhydride-modified or epoxy-modified rubber is selected from the group consisting of ethylene-α-olefin copolymers and the acid anhydride-modified products and epoxy-modified products of their derivatives claim 1 , ethylene-unsaturated carboxylic acid copolymers and acid anhydride-modified products and epoxy-modified products of their derivatives claim 1 , and combinations thereof.3. The ...

Controlling Morphology of Block Copolymers

A method for controlling morphology of a silicone organic block copolymer includes adding an MQ resin to the silicone organic block copolymer and annealing. The method is useful for forming thin films, which are useful in electronic device fabrication. The method is also useful for forming adhesives, release coatings, and reversible elastomers.

Methods and materials for removing metals in block copolymers

The present invention relates to a method for treating a block copolymer solution, wherein the method comprises: providing a solution comprising a block copolymer in a non aqueous solvent; and, treating the solution to remove metals using an ion exchange resin. The invention also relates to a method of forming patterns using the treated block copolymer.

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.

Electrospinning of ptfe with high viscosity materials

An improved process for forming a PTFE mat is described. The process includes providing a dispersion with PTFE, a fiberizing polymer and a solvent wherein said dispersion has a viscosity of at least 50,000 cP. An apparatus is provided which comprises a charge source and a target a distance from the charge source. A voltage source is provided which creates a first charge at the charge source and an opposing charge at the target. The dispersion is electrostatically charged by contact with the charge source. The electrostatically charged dispersion is collected on the target to form a mat precursor which is heated to remove the solvent and the fiberizing polymer thereby forming the PTFE mat.

Carboxylation of poly-/oligothiophenes

The present invention relates to a process for carboxylation of poly/oligothiophenes using CO 2 .

System and Method for High Throughput Preparation of Rubber-Modified Asphalt Cement

This invention encompasses rubber modified asphalt cement compositions, as well as systems, apparatuses, methods for preparing, as well as methods for using rubber-modified asphalt cement compositions.

Hybrid matrix for fiber composite materials

A fiber composite material obtainable by (a) mixing the components of a multi-component agent immediately before use, wherein component A of the multi-component agent contains at least one compound having two or more isocyanate groups, component B of the multi-component agent contains at least one compound which has at least two reactive groups selected from hydroxyl groups, thiol groups, primary amino groups and secondary amino groups and is simultaneously free from epoxy groups, and at least one of the components of the multi-component agent contains at least one epoxide prepolymer, (b) introducing the resulting application preparation into a mold in which fibers and optionally further additives are present, the resulting mixture containing at least one latent hardener for epoxide prepolymers, (c) pre-curing the resulting mixture at a temperature from 5° C. to 90° C., and (d) then finally curing the pre-cured fiber composite material at temperatures from 100° C. to 240° C., wherein the fiber composite material being removed from the mold after step (c) or step (d).

Fluorinated surfactants and stabilization of polytetrafluoroethylene (ptfe) particles in hollow fiber spin solutions

Methods and apparatus relate to recovery of carbon dioxide and/or hydrogen sulfide from a gas mixture. Separating of the carbon dioxide, for example, from the gas mixture utilizes a liquid sorbent for the carbon dioxide. The liquid sorbent contacts the gas mixture for transfer of the carbon dioxide from the gas mixture to the liquid sorbent. Contacting of the sorbent with the gas mixture and/or desorption of the carbon dioxide from the liquid sorbent utilize hollow fiber contactors that have permeable walls and incorporate particles distinct from a remainder of the walls to influence wetting properties of the contactors. Polytetrafluoroethylene particles may be homogenously disposed throughout hollow fiber contactors to influence wetting properties of the contactors.

Electrospinning of ptfe with high viscosity materials

An improved process for forming a PTFE mat is described. The process includes providing a dispersion with PTFE, a fiberizing polymer and a solvent wherein said dispersion has a viscosity of at least 50,000 cP. An apparatus is provided which comprises a charge source and a target a distance from the charge source. A voltage source is provided which creates a first charge at the charge source and an opposing charge at the target. The dispersion is electrostatically charged by contact with the charge source. The electrostatically charged dispersion is collected on the target to form a mat precursor which is heated to remove the solvent and the fiberizing polymer thereby forming the PTFE mat.

Composite and production method thereof

A composite including a plurality of block copolymer chains dispersed in a base polymer, the block copolymer chains including a polymer block (A) and a polymer block (B) having lower affinity for the base polymer than that of the polymer block (A), wherein each of the block copolymer chains has the polymer block (A) at two or more locations of the block copolymer chain, and in at least some of the block copolymer chains, the polymer blocks (A) are at least partially located in the base polymer and the polymer blocks (B) are at least partially exposed from the base polymer.

ELASTOMERIC COMPOSITIONS COMPRISING VINYL ACETAL POLYMERS

An elastomeric composition is provided comprising at least one vulcanizable unsaturated hydrocarbon elastomeric compound, at least one non-fibril, water insoluble vinyl acetal polymer, at least one filler, and optionally at least one coupling agent. A process of making the elastomeric composition is also provided as well as articles comprising the elastomeric composition. In particular, tires comprising the elastomeric composition are provided wherein the handling and processing characteristics are improved while other performance characteristics are retained. 1. A process for producing an elastomeric composition , said process comprising mixing at least one vulcanizable unsaturated hydrocarbon elastomer , at least one non-fibril , water insoluble vinyl acetal polymer , at least one filler , and optionally at least one coupling agent.2. The process according to wherein said elastomer is selected from the group consisting of natural rubber (NR) claim 1 , styrene-butadiene rubber (SBR) claim 1 , butadiene rubber (BR) claim 1 , nitrile rubber (NBR) claim 1 , 1 claim 1 ,4-cis polybutadiene claim 1 , polychloroprene claim 1 , 1 claim 1 ,4-cis polyisoprene claim 1 , halogenated or non-halogenated isoprene-isobutene copolymers claim 1 , butadiene-acrylonitrile claim 1 , styrene-butadiene-isoprene terpolymers and derivatives and mixtures thereof.4. The process according to wherein said non-fibril claim 3 , water insoluble vinyl acetal polymer has about 25 wt % to about 95 wt % of vinyl acetal monomer units claim 3 , from about 2 wt % to about 40 wt % vinyl alcohol monomer units claim 3 , and 0 wt % to 40 wt % vinyl acetate monomer units.5. The process according to wherein said non-fibril claim 1 , water insoluble vinyl acetal polymer is polyvinyl formal and wherein said polyvinyl formal has about 25 wt % to about 95 wt % of vinyl acetal monomer units claim 1 , from about 2 wt % to about 40 wt % vinyl alcohol monomer units claim 1 , and 0 wt % to 40 wt % vinyl acetate ...

COMPOSITION COMPRISING A MULTISTAGE POLYMER, ITS METHOD OF PREPARATION AND ITS USE

The present invention relates to a polymer composition comprising a (meth)acrylic polymer and a multistage polymer. In particular the present invention it relates to polymer composition comprising a (meth)acrylic polymer and a multistage polymer that can be used as a masterbatch. More particularly the present invention relates also to a process for preparing a polymer composition comprising a (meth)acrylic polymer and a multistage polymer by spray drying or coagulation. 2. The polymer composition according to claim 1 , wherein (meth) acrylic polymer (P1) has a mass average molecular weight Mw of less than 100 000 g/mol.3. The polymer composition according to claim 1 , wherein (meth) acrylic polymer (P1) has a mass average molecular weight Mw of less than 60 000 g/mol.4. The polymer composition according to claim 1 , wherein (meth) acrylic polymer (P1) has a mass average molecular weight Mw between 5000 g/mol and 60 000 g/mol.5. The polymer composition according to wherein the composition comprises at least 30% of multistage polymer.6. The polymer composition according to wherein the multi stage polymer comprisesa) one stage (A) comprising a polymer (A1) having a glass transition temperature of less than 10° C.b), one stage (B) comprising a polymer (B1) having a glass transition temperature of at least 30° C.7. The polymer composition according to claim 6 , wherein stage (A) is the first stage and wherein stage (B) comprising polymer (B1) is grafted on stage (A) comprising polymer (A1).8. The polymer composition according to wherein polymers (A1) and (B1) are acrylic or methacrylic polymers.9. The polymer composition according to wherein polymer (A1) comprises at least 50 wt % of polymeric units coming from isoprene or butadiene.10. The polymer composition according to wherein polymer (A1) is a silicone rubber based polymer.11. The polymer composition according to wherein (meth) acrylic polymer (P1) comprises (meth)acrylic monomers that make up 50 wt % or more of the ...

ETHYLENE ALPHA-OLEFIN COPOLYMERS WITH MULTIMODAL COMONOMER DISTRIBUTIONS AND PROCESSES FOR OBTAINING THE SAME

A polymer composition may include a plurality of ethylene-based polymers forming a multimodal composition distribution, each having a distinct crystallization peak in a CEF curve. A process of making a polymer composition may include melt blending a plurality of polyethylenes with different microstructural characteristics in the molten state. Another process of making a polymer composition may include polymerizing ethylene and an optional alpha olefin in combination with a plurality of metallocene catalysts in a polymerization reactor to form a plurality of ethylene based polymers. Yet another process of making a polymer composition may include polymerizing ethylene and an optional alpha olefin in combination with a multimetal catalyst in a polymerization process to form a plurality of ethylene based polymers. 1. A polymer composition , comprising:a plurality of ethylene-based polymers forming a multimodal composition distribution, each having a distinct crystallization peak in a CEF curve.2. The polymer composition of claim 1 , wherein the distinct crystallization peaks comprise at least two peaks in a range of 40 to 120° C.3. The polymer composition of claim 2 , wherein the at least two peaks are in the range of 40 to 75° C. and 85 to 110° C.4. The polymer composition of claim 3 , further comprising a third peak in the range of 70 to 90° C.5. The polymer composition of claim 1 , wherein the plurality of ethylene-based polymer comprises two or more of:a first polyethylene having an alpha-olefin comonomer content ranging from 0 to 10 wt %;a second polyethylene having an alpha-olefin comonomer content ranging from 10 to 15 wt %; anda third polyethylene having an alpha-olefin comonomer content ranging from 15 to 40 wt %.6. The polymer composition of claim 5 , wherein the first polyethylene is present in an amount ranging from 0 to 30 wt % claim 5 , the second polyethylene is present in an amount ranging from 0 to 60 wt % claim 5 , and the third polyethylene is present ...

PROCESSABLE SELF-ORGANIZING NANOPARTICLE

A method of forming a composition includes adding together a plurality of particle brush systems wherein each of the particle brush systems includes a particle and a polymer brush including a plurality of polymer chains attached to the particle. The plurality of polymer chains of the polymer brush exhibit two chain conformations as the degree of polymerization of the polymer chains increases so that the polymer brush includes a concentrated polymer brush region with stretched polymer chains and a semi-dilute polymer brush region with relaxed chains that is radially outside of the concentrated polymer brush region. The degree of polymerization of the polymer brush is no less than 10% less than a critical degree of polymerization and no more than 20% greater than the critical degree of polymerization. The critical degree of polymerization is defined as the degree of polymerization required to achieve a transition from the concentrated polymer brush region to the semi-dilute polymer brush region. 1. A method of forming a composition comprising adding together a plurality of particle brush systems wherein each of the particle brush systems comprises a particle and a polymer brush comprising a plurality of polymer chains attached to the particle , wherein the plurality of polymer chains of the polymer brush exhibit modeled variable chain conformations as the degree of polymerization of the polymer chains increases so that the polymer brush comprises a concentrated polymer brush region with stretched polymer chains and a semi-dilute polymer brush region with relaxed chains that is radially outside of the concentrated polymer brush region , wherein the degree of polymerization of the polymer brush is no less than 10% less than a critical degree of polymerization and no more than 20% greater than the critical degree of polymerization , wherein the critical degree of polymerization is defined as the degree of polymerization required to achieve a transition from the ...

PROCESS FOR THE PROCESSING OF AN UNDRIED, PARTICULATE POLYMER OR POLYMER MIXTURE BY MEANS OF A SINGLE- OR MULTISCREW EXTRUDER

A process for the processing of an undried particulate polymer or polymer mixture by means of a single- or multiscrew extruder comprising a barrel comprising one or more screws, a feed section intended for the polymer and provided on the barrel and, provided on the barrel, a melting region in which the polymer or polymer mixture melts, where the undried polymer or polymer mixture introduced by way of the feed section into the barrel is devolatilized in at least one vacuum devolatilization region downstream of the feed section and upstream of the melting region in the barrel. 1. A process for the processing of an undried particulate polymer or polymer mixture by means of a single- or multiscrew extruder comprising a barrel comprising one or more screws , a feed section intended for the polymer and provided on the barrel and , provided on the barrel , a melting region in which the polymer or polymer mixture melts , wherein the undried polymer or polymer mixture introduced by way of the feed section into the barrel is devolatilized in at least one vacuum devolatilization region downstream of the feed section and upstream of the melting region in the barrel.2. The process according to claim 1 , wherein the prevailing pressure in the vacuum devolatilization region is in the range from 500 to 10-1 mbar.3. The process according to claim 1 , wherein the polymer or polymer mixture is introduced into the feed section by way of a valve.4. The process according to claim 3 , wherein the polymer or polymer mixture is introduced by way of one or more rotary valves.5. The process according to claim 1 , wherein air is introduced and flows from the barrel as far as the vacuum devolatilization region.6. The process according to claim 5 , wherein the air flows into the barrel by way of the valve claim 5 , by way of introduction equipment provided on the barrel or by way of the region where the one or more screws enter(s) the barrel.7. An extruder claim 1 , in particular for the conduct ...

PREPARATION OF POLYAMIDES BY HYDROLYTIC POLYMERIZATION, POSTPOLYMERIZATION AND SUBSEQUENT EXTRACTION

The present invention relates to a process for preparing polyamides, comprising a hydrolytic polymerization, a postpolymerization and an extraction. 1. A process for preparing a polyamide , comprising:a) converting a monomer composition comprising a lactam or an aminocarbonitrile and/or an oligomer of these monomers in a hydrolytic polymerization at elevated temperature in the presence of water to obtain a reaction product comprising polyamide, water, one or more unconverted monomers and oligomers,b) shaping the reaction product obtained in a) to obtain polyamide particles,c) feeding the polyamide particles obtained in b) into a reaction zone for postpolymerization, andd) treating the polyamide obtained in c) with at least one extractant, wherein the extractant is in the liquid state during the treating.2. The process according to claim 1 , further comprising drying the extracted polyamide obtained in d).3. The process according to claim 1 , wherein the monomer composition comprises ε-caprolactam or 6-aminocapronitrile and/or an oligomer of these monomers.4. The process according to claim 1 , wherein the conversion in a) is effected in one or more stages.5. The process according to claim 1 , wherein the conversion in a) is effected in two stages and an essentially vertical tubular reactor is used at least in the second stage.6. The process according to claim 1 , wherein the shaping in b) comprises a pelletization.7. The process according to claim 1 , wherein the polyamide particles obtained in b) are fed into the reaction zone for postpolymerization without being subjected to an extraction beforehand.8. The process according to claim 1 , wherein the polyamide particles obtained in b) are subjected to a solid phase polymerization for postpolymerization.9. The process according to claim 8 , wherein the reaction zone used for postpolymerization in c) comprises a tubular reactor or a tower drier.10. The process according to claim 8 , wherein the temperature during the ...

METHOD FOR THE PRODUCTION OF ABS COMPOSITIONS HAVING AN IMPROVED SURFACE

The invention relates to a method for producing compositions containing vinylaromatic copolymers which are obtained in an emulsion polymerization process and comprise production-related salt inclusions. Said compositions are characterized by an improved surface quality once the granulates have been moistened by bringing same in contact with liquid water and have been stored in said water, thus making the compositions suitable for producing molded articles having a class A surface that remains flawless over time. 2. The process as claimed in claim 1 , wherein component B1 contains B1.1.1) 65% to 85% by weight, based on B1.1, of at least one monomer selected from the group consisting of styrene, α-methylstyrene and methyl methacrylate, and', 'B1.1.2) 15% to 35% by weight, based on B1.1, of at least one monomer selected from the group consisting of acrylonitrile, maleic anhydride and methyl methacrylate,, 'B1.1) 5% to 95% by weight, based on component B1, of a mixture of'}andB1.2) 95% to 5% by weight, based on component B1, of at least one elastomeric graft base, optionally selected from the group consisting of polybutadiene rubber and styrene-butadiene block copolymer rubber.3. The process as claimed in claim 1 , wherein component B1 contains the inorganic salt as a production-related impurity.4. The process as claimed in claim 1 , wherein rakes claim 1 , paddles and/or other kind of mechanical stirrer have been installed in the dip tank.5. The process as claimed in claim 1 , wherein the contacting with liquid water is effected within the temperature range from 5 to 95° C. claim 1 , optionally from 10 to 90° C. claim 1 , optionally from 20 to 85° C.6. The process as claimed in claim 1 , wherein the process is conducted continuously.7. The process as claimed in claim 1 , wherein the process is conducted batchwise.8. The process as claimed in claim 1 , wherein the transport of pellets from tanks can be implemented with the aid of a jet pump.9. The process as claimed in ...

RUBBER COMPOSITION AND METHOD FOR PRODUCING SAME

A rubber composition obtained by dry-mixing a natural rubber wet master batch yielded by mixing at least a natural rubber latex and a carbon-black-containing slurry solution with each other in a liquid phase and drying the resultant mixture, a dry rubber made mainly of a polybutadiene rubber, and an oil, wherein when the total amount of rubber components in the rubber composition is regarded as 100 parts by mass, the natural rubber is contained in an amount of 50 parts or more by mass, and the polybutadiene rubber is contained in an amount of 20 to 50 parts by mass, and the oil has a pour point of −10 C or lower, and an aniline point of 90 C or higher, and the blend amount of the oil is from 15 to 40 parts by mass for 100 parts by mass of the rubber components. 115.-. (canceled)16. A rubber composition obtained by dry-mixing a natural rubber wet master batch yielded by mixing at least a natural rubber latex and a carbon-black-containing slurry solution with each other in a liquid phase and drying the resultant mixture , a dry rubber made mainly of a polybutadiene rubber , and an oil ,wherein when the total amount of rubber components in the rubber composition is regarded as 100 parts by mass, the natural rubber is contained in an amount of 50 parts or more by mass, and the polybutadiene rubber is contained in an amount of 20 to 50 parts by mass, and the oil has a pour point of −10° C. or lower, and an aniline point of 90° C. or higher, and the blend amount of the oil is from 15 to 40 parts by mass for 100 parts by mass of the rubber components.17. The rubber composition according to claim 16 , wherein the natural rubber wet master batch is a master batch produced through the following steps:step (I) in which when a carbon black is dispersed into a dispersing solvent to prepare the carbon-black-containing slurry solution, at least one portion of the natural rubber latex is added thereto, thereby producing a slurry solution containing the carbon black to which natural ...

METHOD FOR PROCESSING POLYETHYLENE

A method can include consecutively batch processing at least two different polyethylene grades in pellet form in a pellet handling unit. A ratio of a melt flow index (MI) of a first polyethylene in pellet form (MI) to a MI of a later processed polyethylene in pellet form (MI) can be smaller than 0.30. The method can include processing an intermediate polyethylene grade in pellet form. An amount of intermediate polyethylene grade processed can be at most 1/100of a handling capacity of the pellet handling unit. The intermediate polyethylene grade can have the same MI as the later processed polyethylene in pellet form. 17-. (canceled)8. A method of processing different polyethylene grades comprising: a first polyethylene in pellet form in a pellet handling unit;', 'an intermediate polyethylene grade in pellet form in the pellet handling unit; and', 'a later processed polyethylene in pellet form in the pellet handling unit;, 'consecutively batch processing{'sub': f', 'l, 'wherein a ratio of a melt flow index (MI) of the first polyethylene in pellet form (MI) to a MI of the later processed polyethylene in pellet form (MI) is smaller than 0.30; and'}wherein the intermediate polyethylene grade has the same MI as the later processed polyethylene in pellet form.9. The method according to claim 8 , wherein the consecutively batch processed polyethylene pellets are obtained from polyethylene resins produced in the presence of a metallocene catalyst.10. The method according to claim 8 , wherein the pellet handling unit comprises one or more transfer lines claim 8 , one or more homogenization silos claim 8 , one or more storage silos claim 8 , or combinations thereof.11. The method according to claim 8 , wherein at least one of the first polyethylene and the later process polyethylene has a monomodal molecular weight distribution.12. The method according to claim 8 , wherein the first polyethylene and the later process polyethylene have monomodal molecular weight distributions. ...

PROCESS FOR PREPARING A POLYMER/BIOLOGICAL ENTITIES ALLOY

The present invention relates to a process for preparing a polymer/biological entities alloy, comprising a step of mixing a polymer and biological entities that degrade it, during a heat treatment, said heat treatment being performed at a temperature T above room temperature and said biological entities being resistant to said temperature T, characterized in that said biological entities are chosen from enzymes that degrade said polymer and microorganisms that degrade said polymer. 1. A process for preparing a polymer/biological entities alloy , comprising:{'sub': 1', '6, 'a step of selecting a polymer from polytetramethylene succinate, copolyesters, polyesteramides, polypropylene, vinyl polymers, poly(C-Chydroxyalkanoates), poly(butylene adipate-co-terephthalate), poly(butylene succinate), polyamides, polyvinyl chloride, polyethylene, polypropylene, polyethylene terephthalate, or poly(trimethylene terephthalate) and mixtures thereof;'}a step of selecting enzymes that degrade said polymer; anda step of mixing said enzymes and said polymer during extrusion at a temperature (T) corresponding to the melting point of said polymer, the extrusion being performed in a twin screw extruder.2. The process as claimed in claim 1 , wherein the enzyme/polymer weight ratio is between about 0.1:100 and about 10:100.3. The process as claimed in claim 1 , wherein the enzyme/polymer weight ratio is between about 1:100 and about 3:100.4. The process as claimed in claim 1 , wherein the enzyme/polymer weight ratio is about 2:100.5. The process as claimed in claim 1 , wherein the twin-screw extruder is a co-rotating extruder.6. A polymer/enzyme alloy made by the process as claimed in . This application is a continuation of U.S. application Ser. No. 15/220,159, filed Jul. 26, 2016, which is a continuation application of U.S. application Ser. No. 14/308,526, filed Jun. 18, 2014, now U.S. Pat. No. 9,428,744, which is a continuation-in-part of International Patent Application No. PCT/FR2012/ ...

Bimodal high-density polyethylene resins and compositions with improved properties and methods of making and using the same

Bimodal high-density polyethylene polymer compositions with increased high melt strength and good processability. The compositions comprise a base resin having a density of about 945 kg/m3 to about 955 kg/m3, and an ethylene polymer (A) having a density of at least about 968 kg/m3, in an amount ranging from 45% to 55% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A). The composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to 450 kPa·s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to 2500 Pa·s. Articles made from these compositions, such as pipes and fittings achieve long-term oxidative resistance and have a low wall thickness variability while maintaining high production output.

Lubricant Composition and Method of Preparing Copolymer Using the Same

A lubricant composition includes a base oil, a phenothiazine-based polymerization inhibitor, and a polymerization inhibitory accelerator including a hindered phenol-based compound and a hydroquinone-based compound. A self-polymerization in a polymerizing process is suppressed by an interaction between the polymerization inhibitor and the polymerization inhibitory accelerator. A method of preparing a copolymer using the lubricant composition is also provided. 1. A lubricant composition , comprising:a base oil;a phenothiazine-based polymerization inhibitor; anda polymerization inhibitory accelerator including a hindered phenol-based compound and a hydroquinone-based compound.3. The lubricant composition according to claim 1 , wherein an amount of the polymerization inhibitor is from 1 ppm to 2 claim 1 ,000 ppm relative to a weight of the base oil.4. The lubricant composition according to claim 3 , wherein the amount of the polymerization inhibitor is from 1 ppm to 10 ppm relative to the weight of the base oil.6. The lubricant composition according to claim 5 , wherein the hindered phenol-based compound is butylated hydroxytoluene (BHT).8. The lubricant composition according to claim 7 , wherein the hydroquinone-based compound is hydroquinone monomethyl ether (MeHQ)9. The lubricant composition according to claim 1 , wherein an amount of the polymerization inhibitory accelerator is from 1 wt % to 10 wt % based on a weight of the base oil.10. The lubricant composition according to claim 1 , further comprising a polar non-aromatic compound.11. The lubricant composition according to claim 10 , wherein the polar non-aromatic compound includes a fatty acid-based compound.12. The lubricant composition according to claim 10 , wherein an amount of the polar non-aromatic compound exceeds 1 wt % and is less than or equal to 10 wt %.13. A method of preparing a copolymer claim 10 , comprising:injecting the lubricant composition into a discharge unit;discharging a first monomer that ...

Energy recovery when processing materials with reactive fluids

Disclosed are methods and apparatuses for recovering and reusing energy when processing materials with reactive fluids. More particularly, disclosed are methods and apparatuses for recovering and reusing energy from processes in which materials comprising polymers and/or oligomers are treated with a reactive fluid.

THERMOPLASTIC POLYMER POWDERS AND USE THEREOF FOR SELECTIVE LASER SINTERING

The invention relates to a thermoplastic polymer powder and to the use thereof as material for selective laser sintering (SLS). The polymer powder contains a semi-crystalline polyolefin, an amorphous styrene-polymer and a selected polymeric compatibilizer, in addition to optionally further additives and/or auxiliary agents. The semi-crystalline polymer, amorphous polymer and selected polymeric compatibilizer are present in the polymer powder in the form of a polymer blend. The invention also relates to a method for producing the thermoplastic polymer powder and to a method for selective laser sintering (SLS) using the polymer powder according to the invention. 115-. (canceled)16. A thermoplastic polymer powder P comprising:(A) 10% to 89.9% by weight, based on the overall polymer powder P, of at least one semicrystalline polyolefin A;(B) 10% to 89.9% by weight, based on the overall polymer powder P, of at least one amorphous styrene polymer B;(C) 0.1% to 20% by weight, based on the overall polymer powder P, of at least one compatibilizer C selected from the group consisting of styrene-butadiene block copolymers, styrene-polyolefin copolymers, acrylonitrile-styrene-polyolefin copolymers, and acrylonitrile-styrene-butadiene-polyolefin copolymers;(D) optionally 0% to 5% by weight, based on the overall polymer powder P, of at least one additive and/or auxiliary;wherein the sum total of the percentages by weight of components A, B, C, and, optionally, D together is 100% by weight;wherein the semicrystalline polymer A, the amorphous styrene polymer B, and the compatibilizer C are in the form of a polymer blend;{'sub': '50', 'and wherein the thermoplastic polymer powder P has a median particle diameter Din the range from 5 to 200 μm.'}17. The thermoplastic polymer powder P of claim 16 , wherein the semicrystalline polyolefin A is at least one polymer selected from the group consisting of polyethylene claim 16 , polypropylene claim 16 , and polypropylene-polyethylene ...

PROTECTIVE TUBE FOR COIL SPRING AND METHOD FOR MANUFACTURING THE SAME

A protective tube for a coil spring and a method for manufacturing the same are disclosed herein. The protective tube for a coil spring is manufactured by: mixing 40-70 parts by weight of a thermoplastic elastomer, 20-40 parts by weight of a thermoplastic resin, 0.2-5 parts by weight of an antioxidant, and 0.2-5 parts by weight of a crosslinking agent to obtain a mixture; pelletizing the mixture to obtain pellets; extrusion-molding the pellets into a tube; crosslinking the tube by radiation; enlarging the diameter of the crosslinked tube while forming the tube into a spiral shape by heating; and setting the enlarged-diameter tube by cooling. 1. A protective tube for a coil spring , which is manufactured by: mixing 40-70 parts by weight of a thermoplastic elastomer , 20-40 parts by weight of a thermoplastic resin , 0.2-5 parts by weight of an antioxidant , and 0.2-5 parts by weight of a crosslinking agent to obtain a mixture; pelletizing the mixture to obtain pellets; extrusion-molding the pellets into a tube; crosslinking the tube by radiation; enlarging a diameter of the crosslinked tube while forming the tube into a spiral shape by heating; and setting the enlarged-diameter tube by cooling.2. The protective tube of claim 1 , wherein the thermoplastic elastomer is one or more selected from the group consisting of a polyolefin-based thermoplastic elastomer (TPO) claim 1 , a polystyrene-based thermoplastic elastomer (TPS) claim 1 , a polyimide-based thermoplastic elastomer (TPA) claim 1 , a polyurethane-based thermoplastic elastomer (TPU) claim 1 , a polyester-based thermoplastic elastomer (TPC) claim 1 , and a thermoplastic vulcanizate (TPV).3. The protective tube of claim 1 , wherein the thermoplastic resin is one or more selected from the group consisting of polyvinyl chloride-based resin claim 1 , polyamide-based resin claim 1 , polyethylene-based resin claim 1 , polyester-based resin claim 1 , polycarbonate-based resin claim 1 , polystyrene-based resin claim 1 , ...

HIGH PERFORMANCE LIGNIN-ACRYLONITRILE POLYMER BLEND MATERIALS

A polymer blend material comprising: (i) a lignin component having a weight-average molecular weight of up to 1,000,000 g/mol; and (ii) an acrylonitrile-containing copolymer rubber component comprising acrylonitrile units in combination with diene monomer units, and having an acrylonitrile content of at least 20 mol %; wherein said lignin component is present in an amount of at least 5 wt % and up to about 95 wt % by total weight of components (i) and (ii); and said polymer blend material possesses a tensile yield stress of at least 5 MPa, or a tensile stress of at least 5 MPa at 10% elongation, or a tensile stress of at least 5 MPa at 100% elongation. Methods for producing the polymer blend, molded forms thereof, and articles thereof, are also described. 1. A polymer blend material comprising:(i) a lignin component having a weight-average molecular weight of up to 1,000,000 g/mol; and(ii) an acrylonitrile-containing copolymer rubber component comprising acrylonitrile units in combination with diene monomer units, and having an acrylonitrile content of at least 20 mol %;wherein said lignin component is present in an amount of at least 5 wt % and up to about 95 wt % by total weight of components (i) and (ii); andsaid polymer blend material possesses either a tensile yield stress of at least 5 MPa, or a tensile stress of at least 5 MPa at 10% elongation, or a tensile stress of at least 5 MPa at 100% elongation.2. The polymer blend material of claim 1 , wherein said acrylonitrile content is at least 30 mol %.3. The polymer blend material of claim 1 , wherein said acrylonitrile content is at least 35 mol %.4. The polymer blend material of claim 1 , wherein said acrylonitrile content is at least 40 mol %.5. The polymer blend material of claim 1 , wherein said lignin is a softwood lignin claim 1 , a hardwood lignin claim 1 , or a grass-derived lignin.6. The polymer blend material of claim 1 , wherein said lignin has a weight-average molecular weight of up to 10 claim 1 , ...

DEGRADABLE MATERIALS FOR OIL AND GAS FIELD OPERATIONS AND THEIR SYNTHESIS METHOD

A synthesis method for degradable material(s) (DM) which can be used in oil and gas field operations. The method involves using two, three, four or five polymer and chain extenders, including poly glycolic acid (PGA), polycaprolactone (PCL), polylactic acid (PLA), poly (butylene succinate) (PBS) and poly(3-hydroxybutyrate) (PHA), to synthesize a “resin alloy” through the melt mixing reaction method, which can be used in oil and gas field operations. The proposed DM can be prepared into flake, powder, granules, and ball shapes, or by one of the pure PGA, PCL, PLA, PBS and PHA, into flake, powder, granule and ball shapes, which can be further used in all kinds of operations (drilling, well completion, workover and acidizing fracturing) in oil and gas fields, such as temporary plugging to protect a reservoir, temporary plugging of perforation holes, construction intervals, etc. The DMs are fully degradable and cause almost no damage to formations. 1. A method of synthesizing degradable material(s) (DM) , comprising the following steps: performing a melt mixing reaction of a polymer and a chain extender , thereby obtaining a resin alloy which can be used in oil and gas field operations as a DM , wherein the polymer comprises two , three , four or five polymer materials selected from the group consisting of polyglycolic acid (PGA) , polycaprolactone (PCL) , polylactic acid (PLA) , poly (butylene succinate) (PBS) and poly(3-hydroxybutyrate) (PHA).2. The synthesis method of DM of claim 1 , wherein the DM can be prepared using the following compositions by mass:10-90% of the PGA and 10-90% of PCL; or 10-90% of the PGA and 10-90% of the PLA; or 10-90% of the PGA and 10-90% of PBS; or 10-90% of the PGA and 10-90% of PHA; or 10-90% of the PCL and 10-90% of PLA; or 10-90% of the PCL and 10-90% of PBS; or 10-90% of the PCL and 10-90% of the PHA; or 10-90% of the PLA and 10-90% of PBS; or 10-90% of the PLA and 10-90% of PHA; or 10-90% of the PBS and 10-90% of PHA; or 10-50% of ...

TRANSPARENT THERMOPLASTIC RESIN PELLET MANUFACTURING METHOD

A method for producing a transparent thermoplastic resin pellet comprising a step of kneading a transparent thermoplastic resin with a kneader under a condition under which a damage history calculated according to the following formula is 500 to 2,500: 1. A method for producing a transparent thermoplastic resin pellet , the method comprising [{'br': None, 'i': 'tr', 'Damage history={Residence time ()}×{Shear rate (γ)}'}, {'br': None, 'i': tr', 'W×H×L', 'Q, 'Residence time ()=()/'}, {'br': None, 'i': D×N', 'H, 'Shear rate (γ)=(π×)/'}], 'kneading a transparent thermoplastic resin with a kneader under a condition under which a damage history calculated according to the following formula is from 500 to 2,500wherein W represents a screw groove width (pitch) [cm]; H represents a screw groove depth [cm]; L represents a screw length [cm]; Q represents a resin supply amount [g/s]; D represents a screw diameter [cm]; and N represents a screw rotation number [rps].2. The method of claim 1 , wherein the transparent thermoplastic resin is an aromatic polycarbonate.3. The method of claim 2 , wherein the aromatic polycarbonate has a viscosity average molecular weight (Mv) of from 11 claim 2 ,000 to 23 claim 2 ,000.4. The method of claim 1 , wherein the kneader is a twin-screw kneader.5. The method of claim 1 , wherein the kneader is equipped with a melt filter for removal of extraneous foreign matter.6. A transparent thermoplastic resin pellet produced by the method of .7. A method for reducing gels in a transparent thermoplastic resin pellet claim 1 , the method comprising [{'br': None, 'i': 'tr', 'Damage history={Residence time ()}×{Shear rate (γ)}'}, {'br': None, 'i': tr', 'W×H×L', 'Q, 'Residence time ()=()/'}, {'br': None, 'i': D×N', 'H, 'Shear rate (γ)=(π×)/'}], 'kneading a transparent thermoplastic resin with a kneader under a condition under which a damage history calculated according to the following formula is from 500 to 2,500wherein W represents a screw groove width ( ...

Polyester Compositions, and Process for Making Articles Therefrom

The present invention relates to a polymer composition comprising a thermoplastic polyester and a propylene-based elastomer, wherein the propylene-based elastomer comprises propylene-derived units and 5 to 30 wt % of α-olefin-derived units, and has a melting temperature of less than 120° C. and a heat of fusion of less than 75 J/g. 1. A polymer composition comprising a thermoplastic polyester and a propylene-based elastomer , wherein the propylene-based elastomer comprises propylene-derived units and 5 to 30 wt % of α-olefin-derived units , and has a melting temperature of less than 120° C. and a heat of fusion of less than 75 J/g.3. The polymer composition of claim 1 , wherein the thermoplastic polyester is selected from a group consisting of polyethylene terephthalate (PET) claim 1 , polypropylene terephthalate (PPT) claim 1 , polybutylene terephthalate (PBT) claim 1 , polycyclohexylenedimethylene terephthalate (PCT) claim 1 , and combinations thereof.4. The polymer composition of claim 1 , wherein the thermoplastic polyester is polyethylene terephthlate.5. The polymer composition of claim 1 , wherein the thermoplastic polyester has an intrinsic viscosity of from 0.4 to 1.2 dl/g.6. The polymer composition of claim 1 , wherein the thermoplastic polyester is formed by the reaction of at least one dicarboxylate acid of which at least 20 wt % is an aromatic dicarboxylate acid selected from the group consisting of terephthalate acid claim 1 , isophthalic acid claim 1 , naphthalene dicarboxylate acid claim 1 , diphenyl ether dicarboxylic acid claim 1 , diphenyl dicarboxylate acid claim 1 , diphenyl sulfone dicarboxylate acid and diphenoxyethane dicarboxylic acid with at least one diol selected from the group of aliphatic diols containing from 2 to 10 carbon atoms.7. The polymer composition of claim 1 , which comprises 1 to 30 wt % of the propylene-based elastomer claim 1 , based on the total weight of the composition.8. The polymer composition of claim 1 , wherein the ...

Polyamide/Polyphenylene Ether Resin Composition, and Vehicle Molded Product Prepared Therefrom

The present invention relates to a polyamide/polyphenylene ether resin composition containing: a base resin comprising polyphenylene ether, a polyamide and an impact modifier; a compatibilizer; and a polyamine, and to: a polyamide/polyphenylene ether resin composition having a notched Izod impact strength of about 12 kJ/mor more when measured at 23° C. according to the ISO 180 standard, and a number of checkerboard lattices, in which peeling off occurs, being about 5% or less of the total number of checkerboard lattices in a 1 mm-gap checkerboard pattern test for testing adhesion to acrylic paints and a melamine-based paints according to the JIS K5600-5-6 standard; and a preparation method therefor. 1. A polyamide/polyphenylene ether resin composition comprising: a base resin comprising a polyphenylene ether , a polyamide and an impact modifier; a compatibilizer; and a polyamine ,{'sup': '2', 'the polyamide/polyphenylene ether resin composition having a notched Izod impact strength of about 12 kJ/mor more, as measured at 23° C. in accordance with ISO 180, and allowing about 5% or less of the total number of checkerboard lattices to be peeled off in a 1 mm-gap checkerboard pattern test for testing adhesion to acrylic paints and melamine paints in accordance with JIS K5600-5-6.'}2. The polyamide/polyphenylene ether resin composition according to claim 1 , wherein the polyamide/polyphenylene ether resin composition has a notched Izod impact strength of about 16 kJ/mto about 30 kJ/m claim 1 , as measured at 23° C. in accordance with ISO 180.3. The polyamide/polyphenylene ether resin composition according to claim 1 , wherein the polyamine is present in an amount of about 0.3 parts by weight to about 5 parts by weight relative to 100 parts by weight of the base resin.4. The polyamide/polyphenylene ether resin composition according to claim 1 , wherein the compatibilizer is present in an amount of about 0.1 parts by weight to about 5 parts by weight relative to 100 parts ...

Method and apparatus arrangement for mixing silicone composition

In the manufacturing method and manufacturing arrangement according to the invention for a silicone composition the mixer mixing the different subcomponents of the silicone composition are removed for the duration of downtime and cooled to a temperature, in which the chemical reaction between the different subcomponents of the silicone composition stops. In the manufacturing method of the invention the mixer is reconnected to the manufacturing apparatus arrangement after downtime without cleaning it from the silicone composition subcomponents remaining in the mixer. 1. A method for manufacturing a silicone composition , in which methoda pumping of different silicone composition subcomponents is started;the silicone composition subcomponents are pumped with component-specific pumps to a mixer of silicone composition subcomponents;a silicone composition is mixed from the subcomponents with the mixer;the process for manufacturing silicone composition is stopped due to downtime;whereinthe silicone composition mixer is cooled to a temperature, in which a chemical reaction between the different subcomponents of the silicone composition stops;the silicone composition mixer is kept at the cooling temperature for a duration of the downtime; and thatthe manufacture of the silicone composition is continued after the downtime without cleaning the mixer.2. The method for manufacturing a silicone composition according to claim 1 , whereinthe silicone composition mixer is removed from the manufacturing apparatus arrangement for a silicone composition for the duration of the downtime; andthe silicone composition mixer is reconnected to the manufacturing apparatus arrangement for a silicone composition after the end of the downtime.3. The method for manufacturing a silicone composition according to claim 2 , wherein the silicone composition mixer is cooled in a separate cooling element.4. The method for manufacturing a silicone composition according to claim 2 , wherein the silicone ...

Apparatus and method for producing thermoplastic elastomer, elastomers produced thereby and articles produced from the elastomers

A method for producing thermoplastic elastomer is disclosed and comprises the step of: blending a mixture including particles of vulcanized rubber material and a molten thermoplastic material such that the rubber material is subjected to mechanical shearing forces and the surfaces of the rubber particles undergo homolytic bond scission to form chains of free radicals which cross-link with the thermoplastic material. Apparatus for carrying out the method, elastomers produced by the method and articles produced from the elastomers are also disclosed.

METHOD FOR PRODUCING A MAT OF CELLULOSE FIBRES WITH A CONTROLLED LEVEL OF MINERAL MATERIAL FOR BITUMEN-IMPREGNATED ROOFING ELEMENTS, AND SUITABLE DEVICE

A method for continuously producing a mat of cellulose fibres intended for producing roofing elements made from bitumen-impregnated cellulose fibres, from a dilute slurry of cellulose fibres spread by a headbox on a dewatering fabric of a forming table having a predefined width, the dewatering fabric moving between an inlet of the forming table at the headbox side and an outlet of the forming table, moving the dilute slurry towards the outlet, gradually removing the liquids of the dilute through the dewatering fabric during the movement to obtain, at the outlet, the mat having a thickness of at least 2 mm, the dilute slurry having a certain level of pre-existing mineral materials. The method involves adding mineral material to the cellulose fibres by spraying a controlled quantity of aqueous solution or dispersion of mineral fillers over the width of the forming table onto the surface of the dilute slurry. 110-. (canceled)11368161933. A method for the continuous manufacturing of a mat of cellulosic fibres from a dilute slurry of cellulosic fibres () spread by a headbox () on a dewatering fabric () of a forming table () having a determined width , the dewatering fabric moving between an inlet () of the forming table () on the headbox side and an outlet () of the forming table , carrying along the dilute slurry of cellulosic fibres () towards the outlet , the liquids of said dilute slurry of cellulosic fibres being gradually removed through the dewatering fabric during said movement in order to obtain at the outlet said mat , the dilute slurry () having a certain level of pre-existing mineral materials and mineral material is added to the cellulosic fibres by spraying with sprays of an aqueous solution or dispersion of mineral fillers , over the width of the forming table , onto the surface of the dilute slurry having already lost a part of its initial liquids ,{'b': '1', 'wherein the mat of cellulosic fibres is intended for the making of roofing elements made of ...

Method Of Stabilizing Siloxanes Having Terminal Hydroxy Groups

Siloxanes having terminal hydroxy groups, and which have a content of cyclic siloxanes of not more than 5% by weight, are stabilized by addition of ammonia in gaseous form or as a solution in a protic or aprotic solvent or in the form of an ammonia-releasing compound in amounts of at least 0.01 ppm by weight and not more than 100 ppm by weight, calculated as ammonia and based on the total weight of the siloxanes having terminal hydroxy groups. Ammonia in gaseous form is preferably used.

BIMODAL HIGH-DENSITY POLYETHYLENE RESINS AND COMPOSITIONS WITH IMPROVED PROPERTIES AND METHODS OF MAKING AND USING THE SAME

The present disclosure is related to bimodal high-density polyethylene polymer compositions with increased high melt strength and good processability comprising a base resin which has a density of about 945 kg/mto about 955 kg/m, and comprises an ethylene polymer (A) having a density of at least about 968 kg/m, in an amount ranging from 45% to 55% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A) wherein said composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to about 450 kPa·s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to about 2500 Pa·s. The present disclosure also relates to methods of making, and using the present compositions, and to articles made from there composition, and preferably to pipes and fittings. 1. A bimodal high-density polyethylene polymer composition comprising a base resin which has a density of about 945 kg/mto about 955 kg/m , preferably 946 to 951 kg/m , most preferably 947 to 951 , and comprises an ethylene polymer (A) having a density of at least about 968 kg/m , preferably above 970 , most preferably above 971 in an amount ranging from about 45% to about 55% by weight , preferably between 47 and 53% by weight , preferably between 48 and 52% by weight , most preferably between 49.5 and 51.5% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A) , wherein said composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to about 450 kPa·s , preferably between 220 and 450 kPa·s , most preferably between 220 and 420 kPa·s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to about 2600 Pa·s , preferably from 2000 to 2500 Pa·s , most preferably from 2100 to 2450 Pa·s.2. The polymer composition according to claim 1 , wherein the composition exhibits a viscosity at a constant shear stress of 747 Pa (η*) ranging from about 400 kPa·s to about ...

TPS/PLA/PBAT BLEND MODIFIED BIODEGRADABLE RESIN PREPARED BY USING CHAIN EXTENDER AND PREPARATION METHOD THEREOF

A thermoplastic starch (TPS)/polylactic acid (PLA)/poly(butylene adipate-co -terephthalate) (PBAT) blend modified biodegradable resin is prepared by using a chain extender, and is prepared from the following raw materials: 20-30 parts by weight of TPS; 20-30 parts by weight of PLA; 40-60 parts by weight of PBAT; and 0.5-0.9 parts by weight of a chain extender KL-E. The preparation method is a two-step method: blending the TPS with the PBAT in a twin screw for granulating; mixing TPS/PBAT mixed granules with PLA granules, and dissolving the chain extender KL-E into an ethyl acetate solution. The chain extender KL-E can be uniformly distributed in PLA and TPS/PBAT mixed granules by using a spraying method, and the remaining short-chain molecules and terminal carboxyl molecules in the mixed granules can be changed into long-chain molecules. 1. (canceled)2. A method for preparing a TPS/PLA/PBAT blend modified biodegradable resin by using a chain extender , comprising the steps of:(1) adding a chain extender KL-E into an ethyl acetate solution, and stirring until the chain extender KL-E is dissolved;(2) weighing and mixing TPS granules and PBAT granules, feeding mixed granules into a twin-screw extrusion granulator, blending in a twin screw in a high-temperature and high-shear manner, extruding the mixed granules out of a die orifice, stretching, air-cooling, and cold-cutting to obtain TPS/PBAT blend modified biodegradable resin granules; and(3) mixing the TPS/PBAT blend modified biodegradable resin granules with PLA granules, spraying the solution obtained in step (1) on a surface of the mixed granules by a spraying method, feeding the mixed granules into the twin-screw extrusion granulator, blending in the twin screw in the high-temperature and high-shear manner, extruding, stretching, and cold-cutting to obtain TPS/PLA/PBAT blend modified biodegradable resin granules.3. The method for preparing the TPS/PLA/PBAT blend modified biodegradable resin by using the chain ...

THERMOPLASTIC RESIN COMPOSITION, METHOD OF PRODUCING THERMOPLASTIC RESIN COMPOSITION, MOLDED ARTICLE OF CELLULOSE-REINFORCED RESIN, AND METHOD OF PRODUCING MOLDED ARTICLE OF CELLULOSE-REINFORCED RESIN

A method of producing a thermoplastic resin composition containing a thermoplastic synthetic resin and a cellulose, in which at least one type of the thermoplastic synthetic resin is a resin having a group containing a partial structure of an acid anhydride in the polymer molecule; 2. The thermoplastic resin composition according to claim 1 , comprising an ionic compound;wherein a content of the ionic compound is 0.001 times or more and less than 1.000 time of the mass content of the cellulose.5. The thermoplastic resin composition according to claim 3 , wherein the X is a halogen ion claim 3 , a carboxylic acid anion claim 3 , a sulfonic acid anion claim 3 , a phosphate anion claim 3 , a phosphonic acid anion claim 3 , a dicyanamide ion claim 3 , or a bis(trifluoromethanesulfonyl)imide ion.6. The thermoplastic resin composition according to claim 1 , wherein the cellulose is plant fiber-derived cellulose.7. The thermoplastic resin composition according to claim 1 , wherein a content of the cellulose is from 1 to 100 parts by mass claim 1 , with respect to 100 parts by mass of the thermoplastic synthetic resin.8. The thermoplastic resin composition according to claim 1 , wherein a content of the resin having a group containing a partial structure of an acid anhydride in the polymer molecule is from 1 to 50% by mass in the thermoplastic synthetic resin.9. The thermoplastic resin composition according to claim 1 , wherein an apparent elastic modulus (Ef) of the cellulose contained in the thermoplastic resin composition at the time when a uniform dispersion element is formed by applying a shear force to the thermoplastic resin composition claim 1 , is 1.1 times or more with respect to an apparent elastic modulus (Ef) of the cellulose contained in a thermoplastic resin composition at the time when a uniform dispersion element is formed by applying a shear force to the thermoplastic resin composition that does not contain the ionic compound or the resin having a group ...

METHOD OF PRODUCING COMPOSITE RESIN MATERIAL AND METHOD OF PRODUCING SHAPED PRODUCT

Provided is a method of producing a composite resin material that has excellent shapeability and enables supply of a shaped product having good properties. The method of producing a composite resin material includes: a mixing step of mixing a fluororesin, fibrous carbon nanostructures, and a dispersion medium to obtain a slurry; and a formation step of removing the dispersion medium from the slurry and forming a particulate composite resin material. The particulate composite resin material has a D50 diameter of at least 20 μm and not more than 500 μm and a D90 diameter/D10 diameter value of at least 1.2 and not more than 15. The D10 diameter, D50 diameter, and D90 diameter are particle diameters respectively corresponding to cumulative volumes of 10%, 50%, and 90% calculated from a small particle end of a particle diameter distribution of the particulate composite resin material. 1. A method of producing a composite resin material comprising:a mixing step of mixing a fluororesin, fibrous carbon nanostructures, and a dispersion medium to obtain a slurry; anda formation step of removing the dispersion medium from the slurry and forming a particulate composite resin material, whereinthe particulate composite resin material has a D50 diameter of at least 20 μm and not more than 500 μm and a D90 diameter/D10 diameter value of at least 1.2 and not more than 15, where the D10 diameter, D50 diameter, and D90 diameter are particle diameters respectively corresponding to cumulative volumes of 10%, 50%, and 90% calculated from a small particle end of a particle diameter distribution of the particulate composite resin material.2. The method of producing a composite resin material according to claim 1 , wherein the mixing step includes:a premixing step of mixing the fluororesin, the fibrous carbon nanostructures, and the dispersion medium to obtain a premixed liquid; anda dispersing step of subjecting the premixed liquid to dispersion treatment using a wet disperser to obtain a ...

Radiation-Curable Resin Composition and Production Method Thereof

A radiation-curable resin composition, suitable for use in 3D printing, and to the production method thereof, i.e. the method for producing three-dimensional objects using radiation by means of 3D printing of the laser, DLP or LCD type, with successive photopolymerisable layers. The radiation-curable resin composition comprises one or more epoxy-acrylic resins and polymethyl methacrylate, graphene, halloysite nanotubes and one or more photoinitiators. 1. Radiation curable resin composition suitable for use in 3D printing characterized in that it is comprised of:40% to 60% by weight of at least one liquid epoxy resin, in which the liquid epoxy resins have at least two groups capable of reacting by a ring opening mechanism to form a polymer lattice,0.1% to 40% by weight of at least one liquid poly(meth)acrylate, of a single functionality (meth)acrylate, wherein said liquid poly(meth)acrylate will be at most 50% by weight of the total content of (meth)acrylate,0.1% to 10% by weight of at least one cationic photoinitiator,0.1% to 10% by weight of at least one free-radical photoinitiator,5% to 15% by weight of at least one polyether provided with terminal OH groups.2% to 30% by weight of a compound that has at least one unsaturated group and at least one hydroxy group in its molecule,0% to 30% by weight of a hydroxylated compound that has no unsaturated group,0.1% to 5% graphene,0.1% to 20% by weight of halloysite nanotubes.2. Composition of radiation curable resin according to claim 1 , characterized as such because at least one liquid epoxy resin is difunctional.3. Radiation curable resin composition claim 1 , according to claim 1 , characterized in that at least one liquid epoxy resin has an epoxy functionality of at least 2.4. Radiation curable resin composition claim 1 , according to claim 1 , characterized in that it is comprised of at least one polyester provided with terminal OH groups.5. Radiation curable resin composition according to claim 1 , characterized in ...

POLYESTER-BASED RESIN COMPOSITION, METHOD FOR PRODUCING SAME, AND MOLDING USING RESIN COMPOSITION

The present invention provides a polyester-based resin composition containing: a resin component which contains 80 to 98 mass % of polyester resin (A) including aromatic dicarboxylic acid units and diol units, and 20 to 2 mass % of polyamide resin (B) including diamine units and dicarboxylic acid units, the diamine units containing 70 mol % or more m-xylylenediamine units and the dicarboxylic acid units containing 70 mol % or more α,ω-aliphatic dicarboxylic acid units; and 0.005 to 0.1 parts by mass of a specific epoxy-functional polymer (C) with respect to 100 parts by mass of the resin component. 3. The polyester-based resin composition according to claim 1 , wherein the polyester resin (A) includes aromatic dicarboxylic acid units containing 70 mol % or more terephthalic acid units claim 1 , and diol units containing 70 mol % or more aliphatic glycol units having carbon atoms of 2 to 4.4. The polyester-based resin composition according to claim 1 , wherein the polyester resin (A) includes 0.01 to 2 mol % of metal sulfoisophthalate units in the aromatic dicarboxylic acid units.5. The polyester-based resin composition according to claim 1 , wherein Rin formula (c2) is a hydrogen atom or a methyl group.6. The polyester-based resin composition according to claim 2 , wherein Rin formula (c3) is a hydrogen atom or a methyl group.7. The polyester-based resin composition according to claim 2 , wherein Rin formula (c3) is a methyl group.8. A method for producing a polyester-based resin composition as recited in claim 1 , the method comprising the following steps 1 and 2 claim 1 , wherein:step 1: melt-kneading 100 parts by mass of polyester resin (A) including aromatic dicarboxylic acid units and diol units, with 10 to 40 parts by mass of epoxy-functional polymer (C), to thereby prepare a master batch (X); andstep 2: melt-kneading 100 parts by mass of a resin component which contains 80 to 98 mass % of polyester resin (A) including aromatic dicarboxylic acid units and diol ...

COMPOSITE PARTICLES, COATING POWDER, COATING FILM, LAMINATE, AND METHOD FOR PRODUCING COMPOSITE PARTICLES

An object of the present invention is to provide a particulate composite which is free from fluorosurfactants having a high environmental impact, and can form a coating film that has excellent adhesion to a substrate and is uniformly adhered to the substrate even if containing a small amount of an adhesive component. The particulate composite of the present invention contains: a fluoropolymer; an adhesive polymer; and less than 0.1 ppm of a fluorosurfactant. 1. A particulate composite comprising:a fluoropolymer;an adhesive polymer; andless than 0.1 ppm of a fluorosurfactant.2. The particulate composite according to claim 1 ,which is obtainable by bonding particles of the fluoropolymer and particles of the adhesive polymer.3. The particulate composite according to claim 1 ,which is obtainable by bonding particles of the fluoropolymer and particles of the adhesive polymer with a device configured to cause centrifugal diffusion and a vortex.4. The particulate composite according to claim 1 ,wherein the particles are floating in the water without making the water cloudy after the particles are dispersed in water and the resulting dispersion is left to stand for a sufficient amount of time.5. The particulate composite according towhich has an average particle size of 1 to 1000 μm.6. The particulate composite according to claim 1 ,which comprises the fluoropolymer and the adhesive polymer in a mass ratio of 50/50 to 99/1.7. The particulate composite according to claim 1 ,wherein the adhesive polymer is at least one compound selected from the group consisting of polyimide, polyamide-imide, polyamide, polyamic acid, epoxy resin, polysulfide, polyarylene sulfide, and polyether sulfone.8. The particulate composite according to claim 1 ,wherein the fluoropolymer is at least one fluororesin selected from the group consisting of a tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer, a tetrafluoroethylene-hexafluoropropylene copolymer, and a tetrafluoroethylene-ethylene ...

POLYMERIC MATERIAL AND PROCESS FOR RECYCLING PLASTIC BLENDS

There is provided a polymeric material comprising: a co-continuous or highly-continuous blend of polyethylene and polypropylene, the blend comprising a polyethylene phase and a polypropylene phase separated by a polyethylene/polypropylene interface; and one or more thermoplastics other than polyethylene and polypropylene, the one or more thermoplastics each having an interfacial tension with polypropylene higher than the interfacial tension of the polyethylene/polypropylene interface, wherein the one or more thermoplastics form discrete phases that are encapsulating each other, and wherein said discrete phases are comprised within the polypropylene phase of the co-continuous or highly-continuous blend or are located at the polyethylene/polypropylene interface. There is also provided a process for recycling a blend of thermoplastics comprising polyethylene, polypropylene and one or more other thermoplastics, the process comprising the step of melting and mixing the polyethylene, the polypropylene and the one or more other thermoplastics, thereby producing a polymeric material. 1. A polymeric material comprising:a co-continuous or highly-continuous blend of polyethylene and polypropylene, the blend comprising a polyethylene phase and a polypropylene phase separated by a polyethylene/polypropylene interface; andone or more thermoplastics other than polyethylene and polypropylene, the one or more thermoplastics each having an interfacial tension with polypropylene higher than the interfacial tension of the polyethylene/polypropylene interface,wherein the one or more thermoplastics form discrete phases that are encapsulating each other, andwherein said discrete phases are comprised within the polypropylene phase of the co-continuous or highly-continuous blend or are located at the polyethylene/polypropylene interface.2. The polymeric material of claim 1 , wherein the polyethylene/polypropylene interface is compatibilized by an interfacial agent and said discrete phases ...

THERMOPLASTIC RESIN COMPOSITION, METHOD FOR PRODUCING SAME, AND MOLDED BODY

The purpose of the present invention is to provide: a thermoplastic resin composition which exhibits excellent rigidity, while having excellent impact strength characteristics; and a method for producing the thermoplastic resin composition. This thermoplastic resin composition, wherein a polyolefin resin contains a polyamide resin that is dispersed therein, is characterized in that: the thermoplastic resin composition is obtained by melting and kneading a polyolefin resin and a mixed resin that is obtained by melting and kneading a polyamide resin and a compatibilizer; and the compatibilizer is a modified elastomer that is obtained by providing an elastomer (such as an olefin-based thermoplastic elastomer or a styrene-based thermoplastic elastomer) with a reactive group that is reactive with the polyamide resin. The present invention also relates to a thermoplastic resin composition which is obtained by melting and kneading from 1% by mass to 80% by mass (inclusive) of a plant-derived polyamide resin such as polyamide 11, from 5% by mass to 75% by mass (inclusive) of a polyolefin resin and from 1% by mass to 30% by mass (inclusive) of a compatibilizer that is an olefin-based thermoplastic elastomer that is modified with an acid. 110.-. (canceled)11. A plant-derived polyamide resin-containing thermoplastic resin composition that is obtained by molten blending a polyamide resin , a polyolefin resin that does not comprise a reactive group that reacts with the polyamide resin , and a compatibilizer , wherein the polyamide resin is at least one plant-derived polyamide resin selected from the group consisting of polyamide 11 , polyamide 610 , polyamide 614 , polyamide 1010 , and polyamide 10T ,the content of the polyamide resin is from 1% to 80% by mass based on 100% by mass of the total of the polyamide resin, the polyolefin resin, and the compatibilizer,the content of the polyolefin resin is from 5% to 75% by mass based on 100% by mass of the total of the polyamide ...

METHODS FOR PRODUCING ALPHA-OLEFIN POLYMER AND HYDROGENATED ALPHA-OLEFIN POLYMER

Provided is a method for producing an α-olefin polymer, comprising the step of polymerizing one or more kinds of α-olefins each having 3 to 30 carbon atoms with a polymerization catalyst obtained by using: (A) a metallocene compound; (B) an ionic compound capable of reacting with the metallocene compound to transform the compound into a cation; (C) an organometallic compound; and (D) one or more kinds of compounds selected from the group consisting of (d-1) an alcohol, (d-2) a phenol, and (d-3) an ether compound, the catalyst having a ratio between the component (A) and the component (D) of from 10:1 to 1:100 in terms of a molar ratio, and having a ratio of the component (D) to the component (C) of less than 1 in terms of a molar ratio. 1. A method for producing an α-olefin polymer , comprising:polymerizing one or more α-olefins with a polymerization catalyst;wherein:each of the one or more α-olefins has 3 to 30 carbon atoms; a metallocene compound;', 'an ionic compound capable of reacting with the metallocene compound to transform the metallocene compound into a cation;', 'an organometallic compound; and', 'one or more compounds selected from the group consisting of an alcohol, a phenol, and an ether;, 'the polymerization catalyst comprisesthe polymerization catalyst has a molar ratio of the metallocene compound to the ionic compound of from 10:1 to 1:100, and a molar ratio of the one or more compounds selected from the group consisting of an alcohol, a phenol and an ether to the organometallic compound of less than 1.2. The method according to claim 1 , wherein the metallocene compound is a two-crosslinked metallocene compound.4. The method according to claim 1 , wherein the polymerization catalyst is prepared by:mixing at least the metallocene compound and the organometallic compound to obtain a first mixture, andmixing at least the first mixture and the one or more compounds selected from the group consisting of an alcohol, a phenol and an ether.5. The method ...

Elastomeric Compositions and Their Use in Articles

A dynamically vulcanized alloy contains at least one isobutylene-containing elastomer, at least one thermoplastic resin, and an anhydride functionalized oligomer grafted to the thermoplastic resin. In the alloy, the elastomer is present as a dispersed phase of small vulcanized or partially vulcanized particles in a continuous phase of the thermoplastic resin and the alloy is substantially absent of any sulfonamides. 2. The alloy of claim 1 , wherein the oligomer is selected from the group consisting of an alkyl claim 1 , an aryl claim 1 , and an alkenyl derived oligomer.3. The alloy of claim 1 , wherein the oligomer claim 1 , prior to anhydride functionalization claim 1 , has a molecular weight in the range of 500 to 2500.4. The alloy of claim 1 , wherein the anhydride functionality is either a succinic anhydride or a maleic anhydride.5. The alloy of claim 1 , wherein the functionalized oligomer is selected from the group consisting of poly-isobutylene succinic anhydride claim 1 , polyisobutene succinic anhydride claim 1 , polybutene succinic anhydride claim 1 , polyisopentene succinic anhydride claim 1 , polypentene succinic anhydride claim 1 , polyoctenyl succinic anhydride claim 1 , polyisooctenyl succinic anhydride claim 1 , poly-hexenyl succinic anhydride claim 1 , and poly-dodecenyl succinic anhydride.6. The alloy of claim 1 , wherein the 1) at least one isoolefin monomer is isobutylene claim 1 , isobutene claim 1 , 2-methyl-1-butene claim 1 , 3-methyl-1-butene claim 1 , 2-methyl-2-butene claim 1 , 1-butene claim 1 , 2-butene claim 1 , methyl vinyl ether claim 1 , indene claim 1 , vinyltrimethylsilane claim 1 , hexene claim 1 , or 4-methyl-1-pentene and 2) at least one multiolefin or other polymerizable monomer is isoprene claim 1 , butadiene claim 1 , 2 claim 1 ,3-dimethyl-1 claim 1 ,3-butadiene claim 1 , myrcene claim 1 , 6 claim 1 ,6-dimethyl-fulvene claim 1 , hexadiene claim 1 , cyclopentadiene claim 1 , piperylene claim 1 , styrene claim 1 , or ...

Matt weather-resistant molding masses for extrusion methods

The invention relates to thermoplastic compositions, containing the following components: a) 30 to 90 wt % of one or more styrene copolymers, and acrylonitrile, as component A; b) 10 to 70 wt % of several impact-modifying graft rubbers without an olefinic double bond in the rubber phase as component B, wherein said component B contains: BI) I to 50 wt % of rubber particles that have an average particle diameter of 50 to 150 nm as component B I; B2) 50 to 99 wt % of rubber particles that have an average particle diameter of 800 to 1200 nm as component B2; c) 0 to 20 wt % of one or more additives as component C; are especially weather-resistant and have good mechanical properties.

Method of Making Thermoplastic Vulcanizates and Thermoplastic Vulcanizates Made Therefrom

The present disclosure relates to a method for making thermoplastic vulcanizates comprising dynamically vulcanizing an elastomer in an extrusion reactor with a curative in the presence of a thermoplastic resin to form a thermoplastic vulcanizate. Process oil is added to the extrusion reactor at a first, second, and third location, where the amount of process oil introduced at the first oil injection location is less than that introduced at the second oil injection location, where the third oil injection location is downstream of where the curative is introduced to the extrusion reactor, and where the thermoplastic vulcanizate comprises at least 25 wt % of oil based on the weight of the thermoplastic vulcanizate. 1. A method for making a thermoplastic vulcanizate , the method comprising the steps of:(i) introducing an elastomer to an extrusion reactor, wherein the elastomer comprises less than about 25 phr of extender oil;(ii) introducing a thermoplastic resin to the extrusion reactor;(iii) introducing at least 7 phr of an inert solid particulate to the extrusion reactor;(iv) introducing a first amount of process oil to the extrusion reactor at a first oil injection location;(v) introducing a second amount of process oil to the extrusion reactor at a second oil injection location, where the second oil injection location is downstream of the first oil injection location, and wherein the second amount of process oil is greater than the first amount of process oil;(vi) introducing a curative to the extrusion reactor a location that is downstream of the second oil injection location;(vii) introducing a third amount of process oil to the extrusion reactor at a third oil injection location, where the third oil injection location is downstream of the location where the curative is introduced to the extrusion reactor; and(viii) dynamically vulcanizing the elastomer with the curative in the presence of the thermoplastic resin to form the thermoplastic vulcanizate;wherein the ...

SYSTEMS AND METHODS TO PRODUCE TREATED CELLULOSE FILAMENTS AND THERMOPLASTIC COMPOSITE MATERIALS COMPRISING TREATED CELLULOSE FILAMENTS

A method and system to produce treated Cellulose Filaments (CF) and CF products are provided. Feedstock comprising CF in a water solution are mixed with a debonder to produce a mixed stream. The mixed stream is filtered yielding separate filtered and filtrate streams. The filtrate stream comprises at least a portion of the debonder. The filtered stream is dried to produce treated CF. The debonder is one of an alcohol, glycol ether, ester-containing quaternary ammonium salt, amido amine quaternary ammonium salt, disubstituted amide or a mixture thereof. The filtrate stream may be recycled. The mixed stream may be washed before filtering to remove debonder. A thermoplastic polymer-treated Cellulose filament composite material is formable by associating the treated CF with a thermopolymer such as polyolefin, polyurethane (PU), polypropylene (PP), polyester (PE), polylactic acid (PLA), polyhydroxyalcanoates (PHA), polyamide (PA), and ethylene vinyl acetate (EVA) or a mixture. 1. A method comprising:mixing a feedstock comprising Cellulose Filaments in a water solution with a debonder to produce a mixed stream;filtering the mixed stream to produce a filtered stream and a filtrate stream, the filtrate stream comprising at least a portion of the debonder; anddrying the filtered stream to produce treated Cellulose Filaments;wherein the debonder is one of an alcohol, glycol ether, ester-containing quaternary ammonium salt, amido amine quaternary ammonium salt, disubstituted amide or a mixture thereof.2. The method of claim 1 , wherein during mixing claim 1 , the debonder adsorbs to a surface of the Cellulose Filaments in a manner such that the debonder physically blocks hydroxyl groups on the surface of the Cellulose Filaments from contacting adjacent Cellulose Filaments claim 1 , thereby weakening the effects of hydrogen bonding between hydroxyl groups of adjacent Cellulose Filaments.3. The method of wherein the Cellulose Filaments in the feedstock comprise individual fine ...

METHOD FOR PRODUCING SHAPING MATERIAL

Provided is a method for producing a shaping material that contains a cyclic olefin polymer and has a low content of a volatile impurity. This method for producing a shaping material is a method which includes passing a raw-material resin in a molten state through an extruder to produce a shaping material, and in which the extruder is equipped with a cylinder, a screw housed within the cylinder, a resin introduction port for introducing the raw-material resin into the cylinder, a resin discharge port for discharging the molten resin from the cylinder, a fluid injection port for injecting carbon dioxide or water into the cylinder between the resin introduction port and the resin discharge port, and a fluid discharge port for removing fluid in the cylinder by suction downstream of the fluid injection port and between the resin introduction port and the resin discharge port. 1. A method for producing a shaping material by passing a raw-material resin that contains a cyclic olefin polymer in a molten state through an extruder ,the extruder being equipped with a cylinder, a screw housed within the cylinder, a resin introduction port for introducing the raw-material resin into the cylinder, a resin discharge port for discharging the molten resin from the cylinder, a fluid injection port for injecting carbon dioxide or water into the cylinder between the resin introduction port and the resin discharge port, and a fluid discharge port for removing fluid in the cylinder by suction downstream of the fluid injection port and between the resin introduction port and the resin discharge port;the method comprising:injecting 1 to 6 parts by mass of carbon dioxide or water per 100 parts by mass of the raw-material resin into the cylinder from the fluid injection port while transporting the molten raw-material resin within the cylinder to bring carbon dioxide or water into contact with the molten raw-material resin, and discharging fluid in the cylinder from the fluid discharge port, ...

COMPOUND FOR REALIZATION OF MODIFIED BITUMEN FOR ASPHALTS

A production method of a compound for realization of modified bitumen for asphalts is disclosed, and includes the following steps: grinding of vulcanized rubber to obtain vulcanized crumb rubber with granulometry lower than 0.4 mm; mixing of the vulcanized crumb rubber, SBS and lubricant in an extruder, wherein the weight percentage of lubricant is between 1% and 50% compared to mixture weight and the vulcanized crumb rubber is in a weight percentage of 70-100% compared to SBS weight; in such way to obtain an extruded compound containing the vulcanized crumb rubber, SBS and lubricant. 1. A production method of a compound for realization of modified bitumen for asphalts , comprising the following steps:grinding of vulcanized rubber to obtain vulcanized crumb rubber with granulometry lower than 0.4 mm;mixing of vulcanized crumb rubber, SBS and lubricant inside an extruder, wherein weight percentage of lubricant is between 1% and 50% with respect to weight of mixture, and vulcanized crumb rubber is in weight percentage equal to weight percentage of SBS;extrusion to obtain an extruded compound containing said vulcanized crumb rubber, SBS and lubricant, wherein the extrusion takes place at a temperature between 160 and 200° C.2. The method of claim 1 , wherein granulometry of vulcanized crumb rubber is between 0.09 and 0.32 mm.3. The method of claim 1 , wherein the crumb rubber is obtained from recycled end-of-use tires (PFU).4. (canceled)5. The method of claim 1 , wherein SBS is of radial type.6. The method of claim 1 , wherein SBS is of linear type.7. The method of claim 1 , wherein SBS is a mixture of radial SBS and linear SBS.8. The method of claim 1 , wherein lubricant is in weight percentage between 20-30% with respect to total weight of compound.9. The method of claim 1 , wherein the lubricant is mineral oil.10. The method of claim 1 , wherein both crumb rubber and SBS are in weight percentage between 35% and 42% with respect to total weight of compound.11. ( ...

Oxygen Tailoring of Polyethylene

Processes are disclosed for oxygen-tailoring polyethylene, particularly polyethylenes suitable for wire and cable applications. One process includes conveying a first polyethylene having a melt index ≦5.0 and an MWD ≦5.0 through mixing or extrusion apparatus having a feed zone, a melt-mixing zone downstream of the feed zone, and a melt zone downstream of the melt-mixing zone, wherein the temperature of the first polyethylene in the melt zone ranges from about 180° C. to about 300° C.; and contacting the first polyethylene with an amount of an oxygen-containing gas having at least about 20.0 parts by weight oxygen per million per parts by weight of the first polyethylene (ppm (wt) O). Polyethylene compositions having improved properties, particularly for wire and cable applications are disclosed. 1. A process for oxygen-tailoring a polyethylene , the process comprising:(a) conveying a first polyethylene having a melt index ≦5.0 and an MWD ≦5.0 through mixing or extrusion apparatus having a feed zone, a melt-mixing zone downstream of the feed zone, and a melt zone downstream of the melt-mixing zone, wherein the temperature of the first polyethylene in the melt zone ranges from about 180° C. to about 300° C.; and{'sub': '2', '(b) contacting the first polyethylene with an amount of an oxygen-containing gas having at least about 20.0 parts by weight oxygen per million per parts by weight of the first polyethylene (ppm (wt) O).'}2. The process of claim 1 , wherein the process provides a tailored polyethylene having a melt index ratio (I/I) of 30.0 to 150.0 and a MWD of 3.0 to 10.0.3. The process of claim 1 , wherein the process provides a tailored polyethylene having a melt index ratio (I/I) of 40.0 to 100.0 and a MWD of 3.0 to 6.0.4. The process of claim 1 , wherein contacting the first polyethylene with an amount of an oxygen-containing gas comprises contacting the first polyethylene with at least 40.0 ppm (wt) O.5. The process of claim 1 , wherein contacting the first ...

RESIN COMPOSITION AND USE THEREOF

Disclosed is a resin composition comprising a melt-moldable side chain 1,2-diol-containing PVA-based resin (A), and fluororesin containing a polar functional group capable of reacting with or forming hydrogen bond(s) with hydroxyl group (B). The component (A) and the component (B) have excellent affinity, and therefore if either the component (A) or component (B) becomes matrix, the other can be finely dispersed into the matrix, thus providing a resin composition having excellent gas-barrier property, solvent resistance, and bending fatigue resistance. The present invention also provides emulsified dispersion and binder in which the resin composition is used. 2. The resin composition according to claim 1 , wherein the polar functional group is carbonyl-containing group or hydroxyl group.3. The resin composition according to claim 2 , wherein the carbonyl-containing group is at least one selected from the group consisting of carbonate group claim 2 , haloformyl group claim 2 , aldehyde group claim 2 , ketone group claim 2 , carboxyl group claim 2 , alkoxycarbonyl group claim 2 , carboxylic anhydride group claim 2 , and isocyanate group.4. The resin composition according to claim 1 , wherein the (B) polar functional group-containing fluororesin is a copolymer containing at least of tetrafluoroethylene as a constituent monomer.5. The resin composition according to claim 4 , wherein the (B) polar functional group-containing fluororesin further contains ethylene as a constituent monomer thereof.6. The resin composition according to claim 5 , wherein the (B) fluororesin constituting the polar functional group-containing fluororesin is one selected from the group consisting of ethylene/tetrafluoroethylene-based copolymer claim 5 , ethylene/tetrafluoroethylene/hexafluoropropylene-based copolymer claim 5 , ethylene/tetrafluoroethylene/CH═CH—Rf (Rf is perfluoroalkyl group having from 2 to 6 carbon atoms)-based copolymer claim 5 , and ethylene/tetrafluoroethylene/ ...

Polylactide Based Compositions

Embodiments of polylactide based compositions are disclosed herein. The compositions may comprise at least one first polymer selected from polylactide-polybutadiene (PLA-PB) block copolymer, polylactide-urethane-polybutadiene block copolymer, or a mixture thereof; and at least one second polymer selected from polylactide, polylactide-urethane, or a mixture thereof. The composition may also comprise from 20% to 50% by weight of said first polymer based on the total weight of the composition and from 50% to 80% by weight of said second polymer based on the total weight of the composition. Embodiments of the present invention also relate to a process for preparing the polylactide based compositions and articles comprising the polylactide compositions.

Anti-fog polycarbonate compositions with optical properties and articles thereof

The present disclosure concerns thermoplastic compositions exhibiting anti-fogging ability and optical qualities such as high transparency and optical clarity. The thermoplastic resin can be employed in a number of applications including automotive lenses such as headlamp fixtures. The thermoplastic resin compositons comprise a polycarbonate base resin; and an amphiphilic oligomer block additive comprising mid-domain and terminal organo-fluoro groups, wherein the mid-domain has soft and hard segments.

PROCESS FOR MAKING A POLYMER POLYOL

This invention relates to a continuous process for making a polymer polyol, the polymer polyol produced according to the said process and its applications. 1. Continuous process for making a polymer polyol , comprisingmixing at least one melted thermoplastic styrene-acrylonitrile-copolymer (TP) with at least one polyol (P) in the presence of at least one stabilizer (S), comprising from 10 to 70% by weight, based on the sum of all components, of at least one polyol P2, and of at least one polyol CSP which comprises the reaction product of at least one macromere M, styrene and acrylonitrile in P2, optionally with an initiator and/or a chain transfer agent,wherein the content of macromere M of the stabilizer (S) is between 30-70 wt %, based on the sum of all components, and/orwherein the polyol CSP is comb-structured, and{'sub': 'g', 'wherein, in a first stage (1), TP, P and S are fed into an extruder (E) to form an initial dispersion, and the initial dispersion obtained from the extruder is then fed, in a second stage (2), into at least one rotor-stator device (RS) comprising at least one rotor-stator combination, and (3) the dispersion is cooled below the Tof the thermoplastic styrene-acrylonitrile-copolymer (TP) after passing all of the rotor-stators (RS) to obtain the final polymer polyol,'}wherein a macromere is defined as a molecule which comprises one or more polymerizable double bonds and one or more hydroxyl-terminated polyether tails.2. Process according to claim 1 , wherein the extruder (E) is divided into at least two separate process zones claim 1 , and an extruder head.3. Process according to claim 2 , wherein TP is fed into the first process zone Z1 of the extruder E claim 2 , S is fed into the second process zone Z2 or a later process zone claim 2 , and P is fed into one of the process zones following the process zone of addition of S claim 2 , wherein the terms “first” and “second” refer to the flow direction of the reaction mixture in the extruder E.4 ...

Polymer Compositions for Injection Stretch Blow Molded Articles

A polymer composition of polypropylene copolymer and 1 to 50% by weight of hard resin. The polypropylene copolymer is either an impact copolymer or a random copolymer. The polymer composition can be used to make injection stretch blow molded articles having improved top load strength. 111-. (canceled)12. A method of making a polymer composition comprising:blending a polypropylene copolymer with a hard resin; andextruding the polypropylene copolymer and the hard resin to form a substantially homogenous polymer blend, wherein the polymer blend contains 1 to 50% by weight of hard resin.13. The method of claim 12 , wherein the polypropylene copolymer is an impact copolymer comprising a polypropylene homopolymer and an ethylene-propylene rubber.14. The method of claim 13 , wherein the homopolymer comprises at least 60% by weight of the impact copolymer claim 13 , and the ethylene-propylene rubber comprises less than 40% by weight of the impact copolymer.15. The method of claim 13 , wherein the impact copolymer has a melt flow rate from 1 to 500 g/10 min.16. The method of claim 12 , wherein the polypropylene copolymer is a random copolymer.17. The method of claim 16 , wherein the random copolymer contains less than 10% by weight of an ethylene comonomer.18. The method of claim 12 , wherein the polymer composition is used to make an injection stretch blow molded article.19. A method of making an article comprising:providing a polymer composition comprising a polypropylene impact copolymer and 1 to 50% by weight of hard resin;injection molding the polypropylene impact copolymer into a preform; andstretch-blowing the preform into an article.20. The method of claim 19 , wherein the article is a container used in cold temperature applications of less than 40° F. The present invention generally relates to polymer compositions. More specifically the present invention relates to polypropylene based polymer compositions for injection stretch blow molding (ISBM) of articles, and ...

METHOD OF PRODUCING SLIDING MATERIAL FOR WEATHER STRIPS

PP, an EPDM prior to crosslinking, and PE particles are fed into a twin screw extruder and melt-kneaded so that the EPDM is dynamically crosslinked, whereby a sliding material for weather strips formed of an olefin-based TPV in which the PE particles are dispersed is produced. The amount of the PE particles blended is 10 parts by mass to 90 parts by mass with respect to 100 parts by mass of the total amount of the PP and the EPDM. It is preferable that the PE particles have an average particle diameter of 30 μm to 200 μm before the feeding, and are micronized by the melt kneading to have an average particle diameter of 10 μm to 50 μm in the produced sliding material for weather strips. 1. A method of producing a sliding material for weather strips , the sliding material formed of an olefin-based TPV in which PE particles are dispersed , the method comprising feeding PP , an EPDM prior to crosslinking , and PE particles into a twin screw extruder and melt-kneading the PP , the EPDM , and the PE particles to dynamically crosslink the EPDM.2. The method of producing a sliding material for weather strips according to claim 1 , wherein the PE particles are blended in an amount of 10 parts by mass to 90 parts by mass with respect to 100 parts by mass of the total amount of the PP and the EPDM.3. The method of producing a sliding material for weather strips according to claim 1 , wherein the PE particles have an average particle diameter of 30 μm to 200 μm before the feeding claim 1 , and are micronized by the melt-kneading to have an average particle diameter of 10 μm to 50 μm in a produced sliding material for weather strips.4. The method of producing a sliding material for weather strips according to claim 1 , wherein a material for the PE particles is an ultra-high molecular weight PE.5. The method of producing a sliding material for weather strips according to claim 1 , wherein claim 1 , in the sliding material for weather strips claim 1 , 30 parts by mass or less of ...

FIBER-REINFORCED PLASTIC COMPOSITION, AND FIBER-REINFORCED COMPOSITE WITH IMPROVED IMPACT PERFORMANCE, PREPARED THEREFROM

Disclosed herein are a fiber-reinforced plastic composition containing a thermoplastic resin, a reactive rubber (reactor-made thermoplastic poly olefin, RTPO), and a glass fiber; and a fiber-reinforced composite prepared from the fiber-reinforced plastic composition. Furthermore, provided is a method for preparing a fiber-reinforced composite, the method comprising the steps of: preparing a thermoplastic resin composition by feeding a thermoplastic resin and a reactive rubber into a first extruder, followed by melting and kneading; preparing a fiber-reinforced plastic composition by feeding the prepared thermoplastic resin composition and a fiber into a second extruder, followed by kneading; and molding the prepared fiber-reinforced plastic composition to prepare a fiber-reinforced composite. 1. A fiber-reinforced plastic composition , comprising a thermoplastic resin , a reactive rubber (Reactor-made thermoplastic poly olefin , RTPO) , and a fiber.2. The fiber-reinforced plastic composition of claim 1 , which comprises about 1 part by weight to about 20 parts by weight of the reactive rubber claim 1 , and about 10 parts by weight to about 50 parts by weight of the fiber claim 1 , relative to 100 parts by weight of the thermoplastic resin.3. The fiber-reinforced plastic composition of claim 1 , wherein the thermoplastic resin is at least one selected from the group consisting of an aromatic vinyl-based resin claim 1 , a rubber-modified aromatic vinyl-based resin claim 1 , a polyphenylene ether based resin claim 1 , a polycarbonate based resin claim 1 , a polyester based resin claim 1 , a methacrylate based resin claim 1 , a polyarylene sulfide based resin claim 1 , a polyamide based resin claim 1 , a polyvinyl chloride based resin claim 1 , a polyolefin based resin claim 1 , and combinations thereof.4. The fiber-reinforced plastic composition of claim 3 , wherein the polyolefin based resin is a polypropylene resin claim 3 , wherein the polypropylene resin is a ...

Polymer Composition Comprising Poly-Lactide-Polybutadiene Based Block copolymer

The present invention relates to a composition comprising: 1. A composition comprising:(a) at least one first polymer selected from the group consisting of poly-L-lactide-polybutadiene (PLLA-PB) block copolymer, poly-D-lactide-polybutadiene (PDLA-PB) block copolymer, poly-L-lactide-urethane-polybutadiene block copolymer, and poly-D-lactide-urethane-polybutadiene block copolymer, and mixture thereof; and(b) at least one second polymer selected from the group consisting of poly-L-lactide, poly-L-lactide-polybutadiene (PLLA-PB) block copolymer, poly-L-lactide-urethane-polybutadiene block copolymer, poly-L-lactide-urethane, poly-D-lactide, poly-D-lactide-polybutadiene (PDLA-PB) block copolymer, poly-D-lactide-urethane-polybutadiene block copolymer, poly-D-lactide-urethane, and mixtures thereof;wherein when the at least one first polymer is poly-L-lactide-polybutadiene (PLLA-PB) block copolymer, or poly-L-lactide-urethane-polybutadiene block copolymer, then the at least one second polymer is selected from the group consisting of poly-D-lactide, poly-D-lactide-polybutadiene (PDLA-PB) block copolymer, poly-D-lactide-urethane-polybutadiene block copolymer, poly-D-lactide-urethane, and mixtures thereof; orwherein when the at least one first polymer is poly-D-lactide-polybutadiene block copolymer, or poly-D-lactide-urethane-polybutadiene block copolymer, then the at least one second polymer is selected from the group consisting of poly-L-lactide, poly-L-lactide-polybutadiene block copolymer, poly-L-lactide-urethane-polybutadiene block copolymer, poly-L-lactide-urethane, and mixtures thereof;wherein said composition comprises from 40% to 99% by weight of said second polymer based on the total weight of the composition.2. The composition according to claim 1 , wherein the at least one first polymer is poly-L-lactide-polybutadiene (PLLA-PB) block copolymer and the at least one second polymer is selected from the group consisting of poly-D-lactide claim 1 , poly-D-lactide- ...

POLYCARBONATE BLEND ARTICLES AND METHOD OF PRODUCING THE SAME

A scratch resistant article comprising a blend which comprises from 50 to 95 percent by weight polycarbonate; and from 5 to 50 percent by weight modified methyl methacrylate polymer, wherein the modified methyl methacrylate polymer is selected from the group consisting of modified methyl methacrylate homopolymer, modified methyl methacrylate copolymers, and combinations thereof; wherein the modified methyl methacrylate polymer has one or more end groups provided by reaction with one or more chain transfer agents selected from the group consisting of mercapto esters, cycloalkyl and substituted cycloalkyl thiols, hydroxyl thiols, aryl and substituted aryl thiols, and aminoalkyl thiols, wherein the modified methyl methacrylate polymer has a Mw from 5,000 to 100,000 g/mole; and wherein the blend exhibits a pencil hardness equal to or greater than F measured according to ASTM D3363-05 is provided. A method for making a scratch resistant article is also provided. 2. The scratch resistant article according to claim 1 , wherein the blend has a haze of equal to or less than 50% claim 1 , measured according to ASTM D1003.3. The scratch resistant article according to claim 1 , wherein the modified methyl methacrylate polymer is a modified methyl methacrylate copolymer which comprises equal to or greater than 70 percent by weight units derived from methyl methacrylate and between greater than one and equal to or less than 30 percent by weight of units derived from one or more monomers selected from the group consisting of (cyclo)alkyl (meth)acrylates claim 1 , alkyl (meth)acrylates claim 1 , aryl (meth)acrylates claim 1 , styrene claim 1 , and substituted styrene based monomers.4. The scratch resistant article according to claim 1 , wherein the modified methyl methacrylate copolymer comprises equal to or greater than 70 percent by weight units derived from methyl methacrylate and between greater than one and equal to or less than 30 percent by weight units derived from of one ...

Highly Filled Compatibilized Polymeric Concentrates

Highly filled compatibilized polymeric concentrates comprise, e.g., using one or more melt processing techniques, a functionalized liquid polymeric dispersion, including a liquid carrier and one or more polymers, and one or more fillers.

LUMPS AND COMPOSITION

[Objective] 1. A lump comprising 100 parts by mass of ethylene copolymer (X) which comprises a structural unit derived from ethylene [A] , a structural unit derived from α-olefin [B] having 3 to 20 carbon atoms , and a structural unit derived from at least one component [C] selected from the group consisting of (c-1) polyene and (c-2) cyclic olefin , and which satisfies (1) to (3) below , and 750 to 2 ,000 parts by mass of plasticizer (Y); wherein(1) the structural unit derived from ethylene [A] represents 50 to 90 mol % in 100 mol % of a total of the structural unit derived from component [A], the structural unit derived from component [B], and the structural unit derived from component [C] in copolymer (X),(2) the structural unit derived from component [C] represents 1.0 to 5.0 mol % in 100 mol % of a total of the structural unit derived from component [A], the structural unit derived from component [B], and the structural unit derived from component [C] in copolymer (X), and(3) an intrinsic viscosity [η] of ethylene copolymer (X) measured in a decalin solution of 135° C. is 7.8 to 13.0 dl/g.2. The lump according to claim 1 , wherein an intrinsic viscosity [q] of plasticizer (Y) measured in a decalin solution of 135° C. is not more than 0.2 dl/g.3. The lump according to claim 1 , which has a mass of 1 kg to 100 kg.4. The lump according to claim 1 , wherein the lump is bale.5. A production method of a rubber composition comprising melt kneading the lump described in claim 1 , a rubber claim 1 , and compounding agents as needed.6. The production method of a rubber composition according to claim 5 , wherein the rubber comprises at least one type of ethylene α-olefin non-conjugated polyene copolymer.7. A composition (Z) comprising 100 parts by mass of ethylene copolymer (X) which comprises a structural unit derived from ethylene [A] claim 5 , a structural unit derived from a-olefin [B] having 3 to 20 carbon atoms claim 5 , and a structural unit derived from at least ...

Superhydrophobic and self-cleaning radiative cooling film and preparation method thereof

Disclosed are a superhydrophobic and self-cleaning radiative cooling film and a preparation method thereof. The preparation method includes the following steps: 1) dissolving P (VDFx-HFPy) and PDMS in a composite polar solvent to obtain a translucent composite polymer solution of P (VDFx-HFPy)/PDMS; 2) adding a non-solvent dropwise to the obtained solution to allow for a phase separation of P (VDFx-HFPy)/PDMS to form a sol; 3) casting the sol; drying the cast sol to obtain a film are porous inside with micro/nano rough structures of low surface-energy on the surface. The preparation method of the present invention is simple, and can be used for large-scale production.

Melt processible fluoropolymer composition with excellent heat conductivity, molded product manufactured from the composition and manufacturing method

The present invention is a polymer composition, containing: 30 to 60 volume % of a melt processable fluoropolymer; and 40 to 70 volume % of boron nitride particles; wherein the boron nitride particles are made from particles (A) and particles (B), the particles (A) are spherical aggregate particles with an average particle diameter of 55 μm to 100 μm, and an aspect ratio of 1 to 2, the particles (B) are particles with an average particle diameter of 8 μm to 55 μm, and the volume ratio of the particles (A) to the total amount of boron nitride is 80 to 99 volume %. The polymer compositions have excellent moldability, insulation properties, heat conductivity, and heat resistance, and are suitable as raw materials for a sufficiently strong molded products, such as thin films.

Isotactic polypropylene based composite

This invention relates to a process for producing an isotactic polypropylene based composite, comprising: reactive blending of isotactic polypropylene homo-polymer; polypropylene grafted with a carboxylic anhydride or a furan type moiety such as maleic anhydride grafted polypropylene; and an amino silane such as (3-aminopropyl)triethoxysilane to produce an isotactic polypropylene based composite such that the crystallization temperature of the isotactic polypropylene based composite is in a range of about 120° C. to about 126° C. The reactive blending can further take place in the presence of an organically modified nanoclay.

THERMOPLASTIC POLYMER MASTERBATCH

A process for increasing the scratch resistance of a composition comprising a thermoplastic organic polymer and a scratch resistant polymer composition per se. The process for increasing the scratch resistance of a composition comprising a thermoplastic organic polymer (P) comprises reactively mixing a thermoplastic organic polymer (A) and an organopolysiloxane (B) in a first step (I) at a temperature at which the thermoplastic organic polymer (A) and the organopolysiloxane (B) are in liquid phases to form a masterbatch. The organopolysiloxane (B) contains at least one functionality capable of reacting with the thermoplastic organic polymer (A) so that a copolymer of components (A) and (B) is formed in the masterbatch during the reactive mixing. The process further comprises a second step (II) of mixing the masterbatch with the composition comprising the thermoplastic organic polymer (P). 1. A process for increasing the scratch resistance of a composition comprising a thermoplastic organic polymer (P) , the process comprising the steps of:(I) reactively mixing a thermoplastic organic polymer (A) and an organopolysiloxane (B) at a temperature at which the thermoplastic organic polymer (A) and the organopolysiloxane (B) are in liquid phases to form a masterbatch,wherein the organopolysiloxane (B) contains at least one functionality capable of reacting with the thermoplastic organic polymer (A) so that a copolymer of components (A) and (B) is formed in the masterbatch during the reactive mixing; and(II) mixing the masterbatch with the composition comprising the thermoplastic organic polymer (P).2. The process according to claim 1 , wherein the organopolysiloxane (B) comprises predominantly D units and/or T units.3. The process according to claim 1 , wherein the organopolysiloxane (B) contains alkenyl functionality.4. The process according to claim 3 , wherein the organopolysiloxane (B) is a vinyl-terminated polydimethylsiloxane.5. The process according to claim 1 , ...

STABILIZERS FOR POLYMERS CONTAINING ALIPHATICALLY-BOUND BROMINE

Aliphatic bromine-containing polymers are stabilized using a mixture of an alkyl phosphite and an epoxy compound. This stabilizer package is very effective at preventing cross-linking reactions from occurring when the aliphatic bromine-containing polymer is subjected to high temperatures as are seen in melt processing operations. The stabilized aliphatic bromine-containing polymer is useful as a flame retardant for other polymers, notably polystyrene foam. 115-. (canceled)16. A method for reducing gel formation in a brominated styrene-butadiene copolymer during melt processing , comprising performing the melt processing of the brominated styrene-butadiene copolymer in the presence of a mixture of at least one alkyl phosphite and at least one epoxy resin compound , wherein from 1 to 40 parts by weight of the alkyl phosphite are present per 100 parts by weight of the brominated styrene/butadiene block copolymer and further wherein from 1 to 40 parts by weight of the epoxy resin are present per 100 parts by weight of the brominated styrene/butadiene block copolymer.17. The method of wherein the melt process is performed in the presence of an organotin compound selected from the group consisting of alkyl tin thioglycolates claim 16 , alkyl tin mercaptopropionates claim 16 , alkyl tin mercaptides claim 16 , alkyl tin maleates and alkyl tin (alkylmaleates) claim 16 , wherein the alkyls are selected from methyl claim 16 , butyl and octyl. This application claims priority from U.S. Provisional Application No. 61/138,572, filed 18 Dec. 2008.The present invention relates to stabilized compositions that contain a brominated polymeric flame retardant.Hexabromocyclododecane, a commonly used flame retardant for polystyrene foams, is facing regulatory pressure in various jurisdictions, in part because it is thought to bioaccumulate. Therefore, there is a desire to replace it.Certain brominated polymers are promising candidates for replacing hexabromocyclododecane as a flame ...

TRANSESTERIFIED FURAN BASED POLYESTERS AND ARTICLES MADE THEREFROM

Transesterified-blend compositions comprising transesterified furan-based polyester and transesterified terephthalate-based polyester disclosed herein and articles made therefrom. 1. A composition comprising:{'sup': 1', '2', '1', '2, 'a. a transesterified furan-based polyester comprising first-alkylene furandicarboxylate repeat units (RF) and one or more of a second-alkylene furandicarboxylate repeat unit (RF), a first-alkylene terephthalate repeat unit (RT), and a second-alkylene terephthalate repeat unit (RT); and'}{'sup': 2', '1', '2', '1, 'b. a transesterified terephthalate-based polyester comprising second-alkylene terephthalate repeat unit (RT) and one or more of a first-alkylene terephthalate repeat unit (RT), a second-alkylene furan repeat unit (RF), and a first-alkylene furandicarboxylate repeat units (RF);'}{'sup': 1', '2, 'sub': 2', '12, 'wherein the first-alkylene group (R) and the second-alkylene group (R) are independently selected from a Cto Caliphatic group, and'}wherein the composition has an NMR blockiness index of greater than 0.00 and less than 1.00.2. The composition of claim 1 , wherein the composition shows a shift in one or more elution times as measured by interaction polymer chromatography claim 1 , from at least one of:{'sup': '1', 'a corresponding untransesterified furan-based polyester comprising the first-alkylene furandicarboxylate repeat units (RF), or'}{'sup': '2', 'a corresponding untransesterified terephthalate-based polyester comprising the second-alkylene terephthalate repeat unit (RT), poly(second-alkylene terephthalate).'}3. The composition of claim 1 , wherein the transesterified furan-based polyester is present in an amount in the range of 0.1-99.9 weight % claim 1 , based on the total weight of the composition.4. The composition of claim 1 , further comprises another transesterified furan-based polyester comprising a third-alkylene furandicarboxylate repeat unit (RF) claim 1 , and one or more of a first-alkylene ...

BLEND OF POLY(PHENYLENE ETHER) PARTICLES AND POLYOXYMETHYLENE, ARTICLE THEREOF, AND METHOD OF PREPARATION

A composition contains (a) 1 to 40 weight percent of poly(phenylene ether) particles having a mean particle size of 1 to 40 micrometers; and (b) 60 to 99 weight percent of a polyoxymethylene; wherein polystyrene is absent from the poly(phenylene ether) particles; wherein the composition comprises less than 0.1 volume percent, based on the total volume of the composition, of particulate metals, metalloids, oxides thereof, and combinations thereof, wherein the metals and metalloids are selected from iron, copper, aluminum, magnesium, lead, zinc, tin, chromium, nickel, tungsten, silicon, gold, silver, platinum, and alloys thereof. The poly(phenylene ether) particles reduce the density and increase the char yield of the polyoxymethylene. When the composition is prepared at a temperature below the glass transition temperature of the poly(phenylene ether), increased flexural strength can also be obtained. The composition is useful as a molding composition for a variety of articles. 1. A composition comprising:(a) 1 to 40 weight percent of poly(phenylene ether) particles having a mean particle size of 1 to 40 micrometers; and(b) 60 to 99 weight percent of a polyoxymethylene;wherein the weight percents are based on the combined weight of the poly(phenylene ether) particles and the polyoxymethylene;wherein polystyrene is absent from the poly(phenylene ether) particles; andwherein the composition comprises less than 0.1 volume percent, based on the total volume of the composition, of particulate metals, metalloids, oxides thereof, and combinations thereof, wherein the metals and metalloids are selected from iron, copper, aluminum, magnesium, lead, zinc, tin, chromium, nickel, tungsten, silicon, gold, silver, platinum, and alloys thereof.2. The composition of claim 1 , comprising:a continuous phase comprising the polyoxymethylene; anda disperse phase comprising the poly(phenylene ether) particles.3. The composition of claim 1 , wherein the poly(phenylene ether) particles have ...

BIAXIALLY ORIENTED POLYESTER FILM

A polyester film constituted of a polyester resin which has an intrinsic viscosity (IV value) of 0.640-0.700, wherein the polyester resin constituting the polyester film contains a P element and further contains at least one element selected from among Mn, Mg, Ca, K, and Na elements, and when the content of the P element in the whole polyester resin is expressed by P (mol/t) and the total content of the Mn, Mg, Ca, K, and Na elements is expressed by M (mol/t), then the following relationships (1) and (2) are satisfied: 1. A polyester film , comprising a polyester resin having an intrinsic viscosity (IV value) of 0.640 to 0.700 , wherein the polyester resin that constitutes the polyester film contains a P element and also contains at least one element of a Mn element , a Mg element , a Ca element , a K element , and a Na element , and a content P (mol/t) of the P element and a total M (mol/t) of contents of the Mn element , the Mg element , the Ca element , the K element , and the Na element in all the polyester resin satisfy the following expressions (1) and (2):{'br': None, 'i': 'M−P≤', '1.00≤2.50\u2003\u2003(1); and'}{'br': None, 'i': 'M/P≤', '1.60≤4.00\u2003\u2003(2).'}2. The polyester film according to claim 1 , having a bending strength in terms of 4.5 μm of the polyester film of 40 to 65 μN/cm.3. The polyester film according to claim 1 , having a thickness unevenness in a longitudinal direction of the polyester film of 5 to 15%.4. The polyester film according to claim 1 , having a number of foreign matters therein of 50/1000 cmor less.5. The polyester film according to claim 1 , having a thickness of 1.5 to 6.0 μm.6. The polyester film according to claim 1 , which is used in a base material layer of a thermal transfer ribbon. This is the U.S. National Phase application of PCT/JP2016/074620, filed Aug. 24, 2016, which claims priority to Japanese Patent Application No. 2016-014034, filed Jan. 28, 2016, the disclosure of these applications being incorporated ...

METHOD FOR PRODUCING RADIATION-SENSITIVE RESIN COMPOSITION

A method for producing a radiation-sensitive resin composition includes a step 1 of putting at least a resin having a polarity that increases by an action of an acid, a photoacid generator, and a solvent into a stirring tank, and a step 2 of producing a radiation-sensitive resin composition by stirring and mixing the resin having a polarity that increases by the action of an acid, the photoacid generator, and the solvent in the stirring tank under a gas having an inert gas concentration of 90% by volume or more, in which in the step 2, an atmospheric pressure inside the stirring tank is higher than an atmospheric pressure outside the stirring tank, and in the step 2, a difference between the atmospheric pressure inside the stirring tank and the atmospheric pressure outside the stirring tank is 2.0 kPa or less. 1. A method for producing a radiation-sensitive resin composition comprising:a step 1 of putting at least a resin having a polarity that increases by an action of an acid, a photoacid generator, and a solvent into a stirring tank; anda step 2 of producing a radiation-sensitive resin composition by stirring and mixing the resin having a polarity that increases by the action of an acid, the photoacid generator, and the solvent in the stirring tank under a gas having an inert gas concentration of 90% by volume or more,wherein in the step 2, an atmospheric pressure inside the stirring tank is higher than an atmospheric pressure outside the stirring tank, andin the step 2, a difference between the atmospheric pressure inside the stirring tank and the atmospheric pressure outside the stirring tank is 2.0 kPa or less.2. The method for producing a radiation-sensitive resin composition according to claim 1 ,wherein the inert gas concentration in the gas is 95% by volume or more.3. The method for producing a radiation-sensitive resin composition according to claim 1 ,wherein the difference between the atmospheric pressure inside the stirring tank and the atmospheric ...

Polylactide Based Compositions

Embodiments of poly-lactide compositions are disclosed herein. The compositions may comprise at least one first polymer selected from polylactide-polybutadiene (PLA-PB) block copolymer, polylactide-urethane-polybutadiene block copolymer, or a mixture thereof; and at least one second polymer selected from polylactide, polylactide-urethane, or a mixture thereof. The composition may also comprise from 20% to 50% by weight of said first polymer based on the total weight of the composition and from 50% to 80% by weight of said second polymer based on the total weight of the composition. Embodiments of the present invention also relate to a process for preparing the poly-lactide compositions and articles comprising the poly-lactide compositions.

COMPOSITE MATERIAL

The present application relates to a natural fiber plastic composite product comprising thermoplastic polymer and dried deinking sludge containing cellulose fibers and minerals. The present application also relates to a method for preparing the natural fiber plastic composite product 1. A natural fiber plastic composite product comprising a thermoplastic polymer and dried deinking sludge containing cellulose fibers and minerals.2. The natural fiber plastic composite product of claim 1 , wherein the thermoplastic polymer comprises polyolefin claim 1 , such as polypropylene or polyethylene.3. The natural fiber plastic composite product of claim 1 , wherein the thermoplastic polymer has a melting temperature of at least 200° C. claim 1 , such as at least 220° C.4. The natural fiber plastic composite product of claim 1 , wherein the thermoplastic polymer comprises a thermoplastic polymer selected from polystyrene claim 1 , polyamide claim 1 , polytetrafluoride claim 1 , polyethylene terephthalate and polycarbonate.5. The natural fiber plastic composite product of claim 1 , wherein the sludge contains cellulose fibers in the range of 10-30% (w/w) and minerals in the range of 55-75% (w/w).6. The natural fiber plastic composite product of claim 1 , wherein the composite material is foamed.7. The natural fiber plastic composite product of claim 1 , wherein the composite contains thermoplastic polymer in an amount in the range of 10-70% and dried deinking sludge in the range of 30-90% (w/w).8. A natural fiber plastic composite product comprising a first layer and a second layer claim 1 , the first layer forming at least a part of the surface of the product claim 1 , whereinthe first layer comprises thermoplastic polymer and cellulose based particles, and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the second layer comprises the natural fiber plastic composite product of .'}9. A method for preparing a natural fiber plastic composite product claim 1 , the method ...

APPARATUS AND METHOD FOR PRODUCING THERMOPLASTIC ELASTOMER, ELASTOMERS PRODUCED THEREBY AND ARTICLES PRODUCED FROM THE ELASTOMERS

A method for producing thermoplastic elastomer is disclosed and comprises the step of: blending a mixture including particles of vulcanized rubber material and a molten thermoplastic material such that the rubber material is subjected to mechanical shearing forces and the surfaces of the rubber particles undergo homolytic bond scission to form chains of free radicals which cross-link with the thermoplastic material. Apparatus for carrying out the method, elastomers produced by the method and articles produced from the elastomers are also disclosed. 1. A method for producing thermoplastic elastomer , the method comprising the step of:blending a mixture including particles of vulcanized rubber material and a molten thermoplastic material such that the rubber material is subjected to mechanical shearing forces and the surfaces of the rubber particles undergo homolytic bond scission to form chains of free radicals which cross-link with the thermoplastic material,wherein the mixture consists essentially of the rubber and the thermoplastic material and is suitable for subsequent molding.2. A method according to claim 1 , wherein the ratio claim 1 , by weight claim 1 , of rubber material to thermoplastic material in the mixture ranges between about 1:9 and about 4:1.3. A method according to claim 1 , wherein the rubber material is cryogenically ground scrap tire rubber.4. A method according to claim 3 , wherein the thermoplastic material is one of PP claim 3 , HDPE claim 3 , LDPE claim 3 , ABS claim 3 , PET and PVC.5. A method according to claim 3 , wherein the thermoplastic material is one of PP claim 3 , HDPE and LDPE.6. A method according to claim 5 , wherein the thermoplastic material is molten recycled post-industrial thermoplastic material.7. A method according to claim 1 , wherein the rubber material has a size between 10 mesh and 100 mesh.8. A method according to claim 1 , wherein the rubber material has a size between 10 mesh and 60 mesh.9. A method according to ...

BLENDED FLUOROPOLYMER COMPOSITIONS

Blended fluoropolymer compositions are provided. In one embodiment, a liquid dispersion of a first fluoropolymer is blended with a liquid dispersion of a second fluoropolymer. The first fluoropolymer may be polytetrafluoroethylene (PTFE), such as a low molecular weight PTFE (LPTFE) that has been polymerized via a dispersion or emulsion polymerization process, and which has not been agglomerated, irradiated, or thermally degraded. The LPTFE may be in the form of an aqueous dispersion, having a mean particle size of less than 1.0 microns (□m), with the LPTFE having a first melt temperature (T) of 332° C. or less. The second fluoropolymer may be a melt processable fluoropolymer (MPF), such as methylfluoroalkoxy (MFA), fluorinated ethylene propylene (FEP), or perfluoroalkoxy (PFA), for example, in the form of an aqueous dispersion, and having a mean particle size of less than 1.0 microns (□m). Blending of the dispersions facilitates interaction of the LPTFE and MPF on a submicron level to facilitate intimate blending such that, when the blended fluoropolymer composition is dried, a crystal structure representing a true alloy of the fluoropolymers is formed, having melt characteristics that differ from those of the individual fluoropolymers. The blended fluoropolymer composition may be used to provide a coating having improved impermeability, stain resistance, abrasion resistance, smoothness, and higher contact angles. 128-. (canceled)29. A blended fluoropolymer composition , comprising:{'sub': 'n', 'low molecular weight polytetrafluoroethylene (LPTFE) having a number average molecular weight (M) less than 500,000;'}perfluoroalkoxy (PFA) having a melt flow rate (MFR) greater than 4 g/10 min as determined by ASTM D1238;the LPTFE present in an amount of 15 wt. % to 50 wt. % and the perfluoroalkoxy present in an amount of 50 wt. % to 85 wt. %, based on the combined weight of the LPTFE and perfluoroalkoxy; andthe blend in solid form and having an alloy crystal structure with ...

Process for Producing Polymer Compositions Having Multimodal Molecular Weight Distribution

A process is described for producing a multimodal polymer composition comprising a high molecular weight polymer (1) and a low molecular weight polymer (2), wherein the weight ratio of polymer (1) to polymer (2) is at a first value, x. The process comprises compounding in a first compounding stage a mixture of polymer (1) and polymer (2), wherein the weight ratio of polymer (1) to polymer (2) in the mixture is at a second value, y, such that y>x to form a first blend. Polymer (2) is then added to the first blend and the mixture of polymer (2) and the first blend is compounded in a second compounding stage to produce a second blend.

Mechanical mixing processes

A ball milling free and roll milling free process that includes the mechanical mixing of a mixture of ingredients comprising a polymer, a perfluoropolyether phosphate, a conductive component, and a solvent.

BIMODAL MOLECULAR WEIGHT COPOLYMERS OF LACTIDE AND GLYCOLIDE

A bimodal polymer blend of first and second poly(L-lactide-co-glycolide) copolymers, wherein the molecular weight ratio of the first to the second copolymer is at least about two to one, and the blend has crystallization and hydrolysis rates greater than either of the first or second copolymers alone. 1. A bimodal polymer composition , comprising:(a) a first amount of a first poly(L-lactide-co-glycolide) copolymer having a first crystallization rate, a first hydrolysis rate and a first molecular weight distribution; and(b) a second amount of a second poly(L-lactide-co-glycolide) copolymer having a second crystallization rate, a second hydrolysis rate and a second molecular weight distribution and a weight average molecular weight from about 10,000 to about 50,000 Daltons;wherein the weight average molecular weight ratio of said first molecular weight distribution to said second molecular weight distribution is at least about two to one; andwherein a substantially homogeneous blend of said first and second copolymers is formed in a ratio of between about 50/50 to about 95/5 weight/weight percent, said substantially homogeneous blend having a crystallization rate greater than each of said first crystallization rate and said second crystallization rate and a hydrolysis rate greater than each of said first hydrolysis rate and said second hydrolysis rate.2. The bimodal polymer composition of claim 1 , having a heat of fusion value of about 15 to about 50 J/g after melt-processing or heat treating the composition claim 1 , as measured by differential scanning calorimetry using the heating rate of 10° C./min.3. The bimodal polymer composition of claim 1 , wherein the first and second copolymers comprise from about 80 mol % to about 99 mol % L-lactide and about 1 mol % to about 20 mol % glycolide.4. The bimodal polymer composition of claim 1 , wherein the first and second copolymers comprise about 85 mol % L-lactide and about 15 mol % glycolide.5. The bimodal polymer ...

TRANSPARENT ARTICLE MADE OF PVC GRAFT COPOLYMERS

The invention relates to a method for preparing vinyl chloride graft copolymers by emulsion polymerization and to a method for preparing blends of such graft copolymers. The invention also relates to transparent molded articles prepared by using the graft copolymers according to the invention and their blends, respectively. 113-. (canceled)14. A polymer blend comprising:a first vinyl chloride graft copolymer prepared using emulsion polymerization including a graft base having a first glass transition temperature, and a grafted copolymer phase including vinyl chloride and having a second glass transition temperature, the first vinyl chloride graft copolymer having a first percentage weight distribution of graft base and grafted copolymer phase,wherein the first glass transition temperature is lower than the second glass transition temperature, andwherein the graft base is not cross-linked and the grafted copolymer phase is cross-linked.15. The polymer blend of claim 14 , wherein the first glass transition temperature is from about −80° C. to about 20° C. and the second glass transition temperature is from about 20° C. to about 120° C.16. The polymer blend of claim 14 , wherein the polymer blend includes graft base in an amount from about 5 wt. % to about 70 wt. % by weight of the polymer blend and the grafted copolymer phase in an amount from about 30 wt. % to about 95 wt. % by weight of the polymer blend.17. The polymer blend of claim 14 , wherein the grafted copolymer phase contains from about 60 wt. % to about 100 wt. % vinyl chloride by weight of the grafted copolymer phase and from about 0 wt. % to about 40 wt. % by weight of the grafted copolymer phase other vinyl compounds.18. The polymer blend of claim 14 , further comprising a second vinyl chloride graft copolymer prepared using emulsion polymerization and including the graft base and the grafted copolymer phase claim 14 , the second vinyl chloride graft copolymer having a second percentage weight ...

COMPOSITIONS, CONTAINING THERMOPLASTICS BASED ON POLYVINYL CHLORIDE AND CONTAINING CROSS-LINKED NBR MICROGELS MODIFIED WITH HYDROXYL GROUPS

The present invention relates to a composition obtainable by mixing to incorporate at least one microgel (B) that has been crosslinked by means of free-radical generators photochemical by using a wavelength>0.1 μm and/or thermally and that contains hydroxy groups and that is based on polybutadiene-acrylonitrile copolymers (NBR) into polyvinyl chloride (PVC) in an extruder, to processes for production thereof and to use thereof for reproduction of transparent thermoplastically processable moulded items, and also to moulded items produced from the said compositions. 1. A composition comprising:at least one thermoplastic based on polyvinyl chloride, andat least one crosslinked microgel based on polybutadiene-acrylonitrile copolymers.3. The composition according to claim 1 , wherein the median particle size dof the primary particles of the microgel is 5 to 500 nm.4. The composition according to claim 1 , wherein the microgels have an acrylonitrile content of 10% to 80%.5. The composition according to claim 1 , wherein the microgels comprise at least about 70% by weight of fractions insoluble in toluene at 23° C.8. The composition according to claim 1 , wherein the swelling index of the microgels in toluene at 23° C. is less than about 80.9. The composition according to claim 1 , wherein the glass transition temperatures of the microgels are from −60° C. to +50° C.8. The composition according to claim 1 , wherein the breadth of the glass transition range of the microgels is greater than about 5° C.9. The composition according to claim 1 , wherein the microgels are thermally cross-linked using organic peroxides claim 1 , and/or organic azo compounds claim 1 , and/or di- and polymercapto compounds claim 1 , as thermal free-radical initiator.10. The composition according to claim 1 , wherein the microgel is cross-linked using trimethylolpropane trimethacrylate (TMPTMA).11. The composition according to claim 1 , the composition has a thermoplastic/microgel ratio by weight of ...

Plasticizer-free article made of pvc graft copolymers

The invention relates to blends of vinyl chloride graft copolymers as well as to a method for preparing such vinyl chloride graft copolymers and their blends. The invention also relates to molded articles manufactured by using the blends according to the invention.

LOW GLOSS POLYMER ADDITIVES WITH REDUCED INCIDENCE OF DISCOLORATION

Disclosed are methods for producing a low gloss polymer additive with a reduced incidence of darkening discoloration, low gloss polymer additives produce according to such methods, thermoplastic compositions comprising the inventive low gloss polymer additives, and articles that include such thermoplastic compositions. The low gloss polymer additives with reduced darkening discoloration impart a high quality, low gloss finish on end products, including natural color products. 1. A method for producing a low gloss polymer additive with a reduced incidence of darkening discoloration comprising:forming a mixture of a reactive polymer and a carrier polymer that is substantially immiscible with the reactive polymer;reactively extruding the mixture in the presence of a crosslinking agent and an acid catalyst, thereby crosslinking the mixture; and,cutting the crosslinked mixture using a cutting implement under conditions that reduce the temperature at the interface between the implement and the mixture, that reduce the exposure of the implement to oxygen, or both, thereby producing the low gloss polymer additive.2. The method according to claim 1 , wherein the reactive polymer is present in an amount from 30 wt % to 80 wt % and wherein the carrier polymer is present in an amount from 20 wt % to 55 wt %.3. The method according to claim 1 , further comprising reducing accumulations of the crosslinked mixture on the cutting implement.4. The method according to claim 1 , comprising using an underwater cutting implement.5. The method according to claim 1 , comprising reducing the exposure of the implement to oxygen by cutting the crosslinked mixture using the implement in the presence of an inert gas.6. The method according to claim 1 , wherein the acid catalyst is an organic acid claim 1 , a mineral acid claim 1 , a Lewis acid claim 1 , or a mixture thereof.7. The method according to claim 1 , wherein the reactive polymer contains a nitrile group.8. The method according to ...

THERMOPLASTIC ELASTOMERS DERIVED FROM DE-VULCANIZED RUBBER

A thermoplastic copolymer is made by first de-vulcanizing a sulfur-crosslinked elastomeric material to produce a liquid phase component. The liquid phase component is subsequently mixed with a compatible thermoplastic polymer at a temperature above its melting point thereof, and the resulting mixture is cooled to produce a solid product. 1. A method of making a thermoplastic elastomer , comprising: utilizing a de-vulcanized elastomeric material which as such is a liquid phase component; subsequently mixing said liquid phase component with a compatible thermoplastic polymer at a temperature above the melting point thereof; and cooling the resulting mixture to produce a solid thermoplastic elastomer.2. A method as claimed in claim 1 , comprising mixing about 25-75% de-vulcanized elastomeric polymer with about 25-75% post-consumer claim 1 , post-industrial or virgin thermoplastic resin with appropriate monomeric content.3. A method as claimed in comprising mixing about 30-70% de-vulcanized SBR/NR derived from post-consumer tire crumb with about 30-70% virgin claim 1 , post-industrial or post-consumer polystyrene resins.4. A method as claimed in comprising mixing about 30-70% de-vulcanized SBR/NR derived from post-consumer tire crumb with about 30-70% virgin claim 1 , post-industrial or post-consumer polyolefin resins.5. A method as claimed in comprising mixing about 30-70% de-vulcanized NBR with about 30-70% virgin claim 1 , post-industrial or post-consumer ABS polymer.6. A method as claimed in comprising mixing about 30-70% de-vulcanized EPDM with about 30-70% virgin claim 1 , post-industrial and post-consumer polyolefin resins.7. A method as claimed in comprising mixing about 30-70% de-vulcanized EPDM with about 30-70% virgin claim 1 , post-industrial and post-consumer ethylene vinyl acetate polymer.8. A method as claimed in comprising mixing about 30-70% de-vulcanized post-consumer tire derived elastomer with about 30-70% virgin claim 1 , post-industrial and post- ...

Thermoplastic Elastomer Composition and a Process for its Production

An elastomer composition is provided, the composition comprising a polyolefin; crumb rubber; a peroxide; and a polyolefin grafted maleic anhydride. A method of forming the composition is also provided. 158-. (canceled)60. The elastomer composition according to claim 59 , wherein the polyolefin comprises polypropylene.61. The elastomer composition according to claim 59 , wherein the polyolefin is a homopolymer.62. The elastomer composition according to claim 59 , wherein the polyolefin is present in an amount of at least 60% by weight.63. The elastomer composition according to claim 59 , wherein the crumb rubber is prepared from waste or used vehicle tyres.64. The elastomer composition according to claim 59 , wherein the crumb rubber has a particle size of from 10 to 250 microns.65. The elastomer composition according to claim 59 , wherein the crumb rubber is present in an amount of from 10 to 75% by weight.66. The elastomer composition according to claim 59 , wherein the peroxide comprises dicumyl peroxide (DCP).67. The elastomer composition according to claim 59 , wherein the peroxide is present in an amount of at least 0.05 parts per hundred of rubber by weight.68. The elastomer composition according to claim 59 , wherein the polyolefin grafted maleic anhydride comprises a polyolefin the same as the polyolefin.69. The elastomer composition according to claim 68 , wherein the polyolefin of the polyolefin grafted maleic anhydride is polypropylene.70. The elastomer composition according to claim 59 , wherein the polyolefin grafted maleic anhydride is present in an amount of at least 0.5 parts per hundred of rubber by weight.71. A method for producing an elastomer composition claim 59 , the method comprising:combining a polyolefin; crumb rubber; a peroxide; and a polyolefin grafted maleic anhydride; andmixing the aforementioned components with heating to a temperature above the melting point of the polyolefin.72. The method according to claim 71 , wherein the ...

Artificial turf infill

The invention provides for a method manufacturing artificial turf infill ( 602 ), wherein the method comprises providing ( 700 ) an initial composition ( 1120 ) comprising a granulate ( 1006 ), at least one type of pigment, and a fluid binding agent. The fluid binding agent comprises at least one type of polymer component. The method further comprises mixing ( 702 ) the initial composition; adding ( 704 ) water and a catalyst to the initial composition during the mixing of the initial composition to cure the fluid binding agent and the at least one type of pigment into an initial coating ( 200 ) of the granulate. The method further comprises providing ( 706 ) a subsequent composition ( 1122 ) comprising the granulate with the initial coating, the at least one type of pigment, and the fluid binding agent. The method further comprises mixing ( 708 ) the subsequent composition. The method further comprises adding ( 710 ) water and the catalyst to the subsequent composition during the mixing of the subsequent composition to cure the fluid binding agent and the at least one type of pigment into a subsequent coating ( 300 ) of the granulate. The method further comprises providing ( 712 ) the granulate with the subsequent coating as artificial turf infill.

CRITICAL POINT DRYING OF HYDROGELS IN ANALYTE SENSORS

A hydrogel is dried by a critical point drying technique. The hydrogel may include indicator molecules embedded therein and may be part of a hydrogel-based device, such as, for example, an analyte sensor. 1. A method of preparing a hydrogel for a hydrogel-based device , the method comprising drying the hydrogel by a critical point drying technique.2. The method of claim 1 , wherein the hydrogel-based device comprises a sensor configured for sensing the presence of an analyte in contact with the sensor and including an indicator comprising the hydrogel and configured to emit a detectable signal or a change in a detectable signal indicating the presence of the analyte.3. The method of claim 1 , wherein the critical point drying technique comprises:{'sub': '2', 'replacing water within the hydrogel with an intermediate fluid that is miscible with water and CO;'}{'sub': '2', 'replacing the intermediate fluid within the hydrogel with CO;'}{'sub': '2', 'manipulating temperature and pressure to achieve super critical CO; and'}{'sub': '2', 'removing the supercritical COfrom the hydrogel.'}4. The method of claim 3 , wherein the temperature for achieving super critical COis about 30-35° C. and the pressure for achieving supercritical COis about 1000-1200 psi.5. The method of claim 1 , further comprising storing the hydrogel-based device at room temperature after the critical point drying step.6. The method of claim 1 , further comprising implanting the hydrogel-based device into a patient after the critical point drying step without pre-hydrating the hydrogel-based device prior to implanting.7. A hydrogel dried by a critical point drying technique.8. The hydrogel of claim 7 , wherein the critical point drying technique maintains the physical properties of the hydrogel.9. The hydrogel of claim 7 , wherein the critical point drying technique extends the shelf life of the hydrogel.10. The hydrogel of claim 7 , wherein the critical point drying technique does not change the ...