ДВУХФАЗНАЯ КОМПОЗИЦИЯ СМАЗОЧНОГО МАСЛА

Настоящее изобретение относится к композиции смазочного масла, содержащей смесь: (A) углеводорода в качестве компонента с низкой вязкостью, причем кинематическая вязкость при 40°C указанного компонента с низкой вязкостью находится в диапазоне от 5 до 500 мм/с, (B) полиалкиленгликоля (PAG) в качестве компонента с высокой вязкостью, в котором массовое отношение кислород/углерод находится в диапазоне от 0,450 до 0,580, причем кинематическая вязкость при 100°C указанного компонента с высокой вязкостью находится в диапазоне от 2,5 до 100 мм/с, и (C) соединения, используемого в качестве регулирующего компонента, в котором отношение кислород/углерод находится в диапазоне от 0,080 до 0,350, причем указанный регулирующий компонент представляет собой соединение, содержащее алифатический сложный эфир, причем углеродная цепь, отличная от цепи в сложноэфирной группе, составляет от С4 до С18. Техническим результатом настоящего изобретения является понижение температуры расслоения и сохранение кинематической ...

ГОТОВАЯ К ЭКСПЛУАТАЦИИ КОРОБКА ПЕРЕДАЧ, РАБОЧАЯ ЖИДКОСТЬ ДЛЯ НЕЕ И СПОСОБ ДЛЯ ЕЕ ПЕРВИЧНОГО ВВОДА В ЭКСПЛУАТАЦИЮ

Изобретение относится к коробке передач, в частности к смазке высоконагруженных зубчатых колес коробки передач. Готовая к эксплуатации коробка передач с зубчатыми колесами должна эксплуатироваться со смазочным и охлаждающим средством, с лучшим теплоотводом и с независимой от температуры вязкостью. Смазочное и охлаждающее средство коробки передач содержит смесь воды и алифатического углеводорода, в которой суспендированы частицы графита. Преимущественно смесь содержит от 40 до 60 весовых процентов алифатического углеводорода или же содержащего такие углеводороды соединения, и от 2 до 20 весовых процентов графита в форме хлопьевидных частиц графита с размером зерен менее 12 микрометров. Остаток - вода и другие примеси и/или присадки. Достигается повышение надежности и компактности путем применения заявленной рабочей жидкости для смазки и охлаждения коробки передач. 3 н. и 13 з.п. ф-лы, 2 ил.

СПОСОБ ПОЛУЧЕНИЯ ЗАГУЩЕННЫХ ПОЛИМОЧЕВИНОЙ КОНСИСТЕНТНЫХ СМАЗОК НА ОСНОВЕ ПРОИЗВОДНЫХ ЛИГНИНА, КОНСИСТЕНТНЫЕ СМАЗКИ И ИХ ПРИМЕНЕНИЕ

Изобретение относится к способу получения консистентных смазок на основе производных лигнина, загущенных полимочевинным загустителем, к полученным таким способом консистентным смазкам и к применению таких консистентных смазок для смазывания, по меньшей мере, шарнира равных угловых скоростей, в частности гомокинетических шарнирных валов, коробки передач или подшипников качения и скольжения, в частности уплотненных подшипников качения. Способ заключается в смешивании аминного компонента с изоцианатным компонентом в первом базовом масле и проведение реакции этих компонентов с получением полимочевинного загустителя; затем проводится нагревание до температуры, превышающей 120С, с получением содержащей по меньшей мере полимочевинный загуститель основы смазки, включающей по меньшей мере первое базовое масло; и охлаждение основы смазки. Получаемая данным способом консистентная смазка содержит: от 55 масс. % до 92 масс. % базового масла; от 5 масс. % до 20 масс. % полимочевинного загустителя и от ...

КОМПОЗИЦИЯ ПОЛИФУНКЦИОНАЛЬНОЙ ПРИСАДКИ, ПОВЫШАЮЩЕЙ ИНДЕКС ВЯЗКОСТИ, И СМАЗОЧНОЕ МАСЛО

Изобретение относится к новым полифункциональным модификациям вязкости, включающим смесь дериватизированных сополимеров этилена с альфа-олефинами, А и Б. Указанный сополимер А содержит от примерно 30 до примерно 60 мас.% мономерных звеньев из этилена и указанный сополимер Б содержит от примерно 60 до примерно 80 мас.% мономерных звеньев из этилена. 2 с. и 6 з.п. ф-лы, 4 ил., 1 табл.

ЗВЕЗДООБРАЗНЫЙ ПОЛИМЕР, СПОСОБ ЕГО ПОЛУЧЕНИЯ, КОМПОЗИЦИЯ СМАЗОЧНОГО МАСЛА

Описывается новый звездообразный полимер, пригодный в качестве присадки, улучшающей индекс вязкости, отличающийся тем, что включает по крайней мере частично гидрированные полиизопреновые блоки и по крайней мере частично гидрированные полибутадиеновые блоки, скомбинированные в молекулы, имеющие структуру (ЕР-ЕВ-ЕР')n-Х, где ЕР - наружный блок полиизопрена, имеющий среднечисленную молекулярную массу (МW1) 6500-85000 перед гидрированием; ЕВ - блок полибутадиена, имеющий среднечисленную молекулярную массу (МW2) 1500 - 15000 перед гидрированием и имеющий по крайней мере 85% мономерных звеньев, присоединенных в положении 1,4; ЕР' - внутренний блок полиизопрена, имеющий среднечисленную молекулярную массу (МW3) 1500-55000 перед гидрированием, причем звездообразный полимер содержит менее 15 мас.% бутадиена, соотношение MW и MW3 составляет 0,75:1 - 7,5:1, а Х - ядро полиалкенильного агента сочетания, n - количество блоксополимерных ответвлений в полимере звездообразной структуры, при сочетании 2 ...

КОМПОЗИЦИЯ КОНСИСТЕНТНОЙ СМАЗКИ

... 1. Композиция консистентной смазки, содержащая базовое масло, загуститель и поли(мет)акрилат, содержащий гидроксильные группы.2. Композиция консистентной смазки по п. 1, в которой загуститель представляет собой мочевиновое соединение, полученное в результате проведения реакции между изоцианатом и первичным амином.3. Композиция консистентной смазки по п. 2, в которой мочевиновое соединение представляет собой димочевиновое соединение, полученное в результате проведения реакции между диизоцианатом и первичным моноамином; тетрамочевиновое соединение, полученное в результате проведения реакции между диизоцианатом, первичным диамином плюс первичный моноамин; или тримочевиномоноуретановое соединение, полученное в результате проведения реакции между диизоцианатом, первичным диамином, первичным моноамином и моноспиртом.4. Композиция консистентной смазки по п. 2, в которой мочевиновое соединение представляет собой соединение, описывающееся общей формулой (I):где каждый из Rи Rпредставляет собой Cи ...

СМАЗОЧНАЯ КОМПОЗИЦИЯ

СМАЗОЧНАЯ КОМПОЗИЦИЯ

... 1. Смазочная композиция, содержащая базовое масло, один или более мочевинных загустителей, (А) от 0,1 до 5 вес.% дисульфида вольфрама и (В) от 0,1 до 5 вес.% одного или более дитиофосфатов цинка и/или одного более диалкилдитиокарбаматов молибдена в расчете на общий вес смазочной композиции. ! 2. Смазочная композиция по п.1, которая дополнительно включает (С) один или более дитиофосфатов молибдена. ! 3. Смазочная композиция по п.2, в которой один или более дитиофосфатов молибдена (С) присутствуют в количестве в пределах от 0,1 до 5% от общего веса смазочной композиции. ! 4. Смазочная композиция п.1, в которой указанные один или более мочевинных загустителей присутствуют в суммарном количестве в пределах от 1 до 25% от общего веса указанной смазочной композиции. ! 5. Смазочная композиция по п.1, в которой дисульфид вольфрама (А) представляет собой порошок со средним размером частиц меньше 10 мкм, получаемый по методу Фишера. ! 6. Смазочная композиция по п.1, в которой один или более дитиофосфатов ...

УПЛОТНИТЕЛЬНОЕ УСТРОЙСТВО

Изобретение относится к уплотнительному устройству, способному уменьшать износ уплотняющей губы в условиях низких температур. Уплотнительное устройство (1) содержит эластичный корпус (2), образованный из кольцеобразного эластичного элемента, и армирующее кольцо (3), образованное из кольцеобразного металла. Эластичный корпус (2) содержит крепежный участок (4), вставленный в участок, который должен быть закреплен, и уплотняющий участок (5) в плотном контакте с валом с возможностью скольжения упомянутого вала. Смазка наносится на уплотняющую губу (51) уплотняющего участка (5). Смазка содержит по меньшей мере одно из синтетического углеводородного масла и минерального масла в качестве базового масла и имеет низкотемпературный стартовый момент 25 Н⋅см при -30°С. 3 з.п. ф-лы, 3 ил., 1 табл.

ПРОТИВОПЕННАЯ ПРИСТАВКА И СВЯЗАННЫЕ С НЕЙ СПОСОБЫ ПРИМЕНЕНИЯ

ГОТОВАЯ К ЭКСПЛУАТАЦИИ КОРОБКА ПЕРЕДАЧ, РАБОЧАЯ ЖИДКОСТЬ ДЛЯ НЕЕ И СПОСОБ ДЛЯ ЕЕ ПЕРВИЧНОГО ВВОДА В ЭКСПЛУАТАЦИЮ

... 1. Готовая к эксплуатации коробка передач с высоконагруженными зубчатыми колесами, корпус которой образует содержащий смазочное и охлаждающее средство поддон, в который погружаются зубчатые колеса, отличающаяся тем, что она содержит в качестве смазочного и охлаждающего средства смесь воды и алифатического углеводорода с по меньшей мере двумя гидроксильными группами или же содержащего такие углеводороды соединения, в которой суспендированы частицы графита с размером зерен менее 50 мкм. ! 2. Готовая к эксплуатации коробка передач по п.1, отличающаяся тем, что смазочное и охлаждающее средство содержит от 25 до 75 вес.% алифатического углеводорода или же содержащего такие углеводороды соединения, и от 1 до 30 вес.% графита в форме хлопьевидных частиц графита с размером зерен менее 20 мкм, остаток - вода и другие примеси и/или присадки. ! 3. Готовая к эксплуатации коробка передач по п.2, отличающаяся тем, что смазочное и охлаждающее средство содержит от 40 до 60 вес.% алифатического углеводорода ...

СМАЗОЧНАЯ КОМПОЗИЦИЯ

СМАЗОЧНЫЕ МАТЕРИАЛЫ НА ВОДНОЙ ОСНОВЕ

... 1. Смазочный материал на водной основе, содержащийот 5 до 80 мас.% водорастворимого полиалкиленгликоля, выбранного из группы, состоящей из статистически распределенных полиоксиэтиленовых и/или полиоксипропиленовых единиц и/или других полиоксиалкиленовых элементарных звеньев, блокполимера из полиоксипропиленовых единиц и/или других полиоксиалкиленовых элементарных звеньев,от 0,5 до 20 мас.% пенящихся или не пенящихся эмульгаторов из класса анионных, неионогенных или катионных тензидов, водорастворимых или эмульгируемых в воде эфиров карбоновой кислоты,от 0,5 до 50 мас.% антифриза, выбранного из группы, состоящей из алкиленгликоля, глицерина, солей или ионных жидкостей,от 0,05 до 10 мас.% антикоррозионных добавок,от 0,001 до 1 мас.% добавок для предотвращения пенообразования иот 0,05 до 5 мас.% вещества, защищающего от износа воды до 100 мас.%.2. Смазочный материал по п.1, кроме того, содержащийот 0,001 до 0,5 мас.% биоцидов и/илиот 0,05 до 5 мас.% наночастиц.3. Смазочный материал по п.1 ...

КОМПОЗИЦИЯ КОНСИСТЕНТНОЙ СМАЗКИ

... 1. Композиция консистентной смазки, содержащая базовое масло и мыло на основе кальциевого комплекса в качестве загустителя, где в качестве жирных кислот в мыле на основе кальциевого комплекса используются замещенная или незамещенная прямо-цепочечная высшая жирная монокислота, содержащая от 18 до 22 атомов углерода, ароматическая жирная монокислота, содержащая замещенное или незамещенное бензольное кольцо, и прямо-цепочечная насыщенная низшая жирная монокислота, содержащая от 2 до 4 атомов углерода.2. Композиция консистентной смазки по п. 1, температура каплепадения которой составляет по меньшей мере 180°C.3. Композиция консистентной смазки по п. 1 или 2, содержащая от 2 до 15 массовых частей прямо-цепочечной высшей жирной монокислоты, от 0,5 до 2 массовых частей ароматической жирной монокислоты и от 1 до 5 массовых частей прямо-цепочечной насыщенной низшей жирной монокислоты в расчете на 100 массовых частей совокупного перемешиваемого количества композиции консистентной смазки.4. Композиция ...

Schwefelung von ungesättigten Alkoholen

Wälzlager

Die Erfindung betrifft ein Wälzlager mit einem Außenring, einem Innenring, einem Käfig, in dem Käfig geführte, auf dem Innenring und Außenring abwälzende Wälzkörper sowie gegebenenfalls zumindest einer zwischen dem Innenring und dem Außenring angeordneten Dichtung und/oder Deckscheibe und mit einem in dem Wälzlager vorgesehenen Schmiermittel. Um bei niedrigen Temperaturen und längeren Standzeiten das Wälzlager vor Beschädigungen zu schützen, ist in dem Schmiermittel neben Fett ein Phasenwechselmaterial enthalten.

METALLKOMPLEX ENTHALTENDES SCHMIERÖLADDITIV.

VERFAHREN ZUR HERSTELLUNG VON DETERGENTIEN

Flammfestes Hydrauliköl

Neue Wolfram-hexa-(dialkyldithiocarbamate) und Verfahren zu ihrer Herstellung

Verfahren zur Herstellung von Schmiermitteln

LUBRICATING COMPOSITIONS

Schmierfett

Schrnierfettzusanrensetzulg, fettgeschmiertes Lager, Gelenkkupplung für Kardanwelle, Schrnier6lzusanrensetzung und ölgetränktes Sinterlager

Gegenstand der vorliegenden Erfindung ist eine Schmierfettzusammensetzung oder eine Schmierölzusammensetzung, die das Auftreten eines durch Wasserstoffsprödigkeit verursachten Abblätterns auf einer Wälzoberfläche eines Wälzlagers wirksam verhindern kann, hervorragende Haltbarkeit im Betrieb bei hoher Temperatur und hoher Drehzahl aufweist und über einen langen Zeitraum verwendet werden kann. Ein fettgeschmiertes Lager (1) weist einen Innenring (2), einen Außenring (3) und mehrere Wälzelemente (4) auf. Ein Dichtelement (6) zum dichten Einschließen einer Schmierfettzusammensetzung (7) ist an an beiden axialen Enden des Innenrings (2) und des Außenrings (3) befindlichen Öffnungen (8a) und (8b) angebracht. Die Schmierfettzusammensetzung (7) umfasst ein aus einem Grundöl und einem Verdicker bestehendes Basisschmierfett und ein dem Basisschmierfett zugesetztes Additiv. Das Additiv enthält mindestens eine Verbindung, die aus von Pflanzen abgeleiteten Polyphenolverbindungen und durch Zersetzung ...

Olefinoligomerisierungsverfahren und Produkte und Anwendung von Dimerprodukten

Naphthensaure Salze enthaltende Schmieroele

Äthylen-alpha-Olefinpolymer-Derivate, verwendbar als multifunktionaler Viskositätsindexverbesserer.

Schmiermittel

Brennstoff- und Schmiermittelgemische

Schmierfette

SCHMIERMITTEL

Funktionelle Flüssigkeiten mit verbesserten Verschleiss- und antioxidative Eigenschaften

Turboöl mit hohen Lastaufnahmeeigenschaften, enthaltend Aminphosphat und Schwefelhaltige Carbonsäure

Metall/Kunststoff-Gleitlagerverbundwerkstoff und hieraus hergestelltes Gleitlagerelement

Die Erfindung betrifft einen Metall/Kunststoff-Gleitlagerverbundwerkstoff (2) mit einer metallischen Stützschicht (4), insbesondere aus Stahl, mit einer porösen Trägerschicht (6), insbesondere einer aus metallischen Partikeln (7) aufgesinterten Trägerschicht (6), und mit einem die Poren der Trägerschicht (6) vollständig ausfüllenden Gleitschichtmaterial (8) auf Polymerbasis mit die tribologischen Eigenschaften verbessernden Füllstoffen, wobei die Polymerbasis PTFE ist; erfindungsgemäß umfasst das Gleitschichtmaterial (8) zu 0,15 Masse-% Kohlenstoff-Nanoröhrchen mit einem Röhrenaußendurchmesser von 100 nm und einer Röhrenlänge von 20µm.

Schmiermittel für Gleichlaufgelenke

GERAET ZUR ULTRASCHALL-ABBILDUNG

ANTIFRICTION ALLOY, PROCESS FOR THE MANUFACTURE THEREOF, AND DIE AND LUBRICANT CONTAINING SUCH AN ALLOY

SCHMIERFETTZUSAMMENSETZUNG FÜR HOMOKINETISCHE KUPPLUNG

Hochdruckschmiermittel

Schmierfette umfassend Metallseifen und Metallkomplexseifen auf Basis von R-10-Hydroxyoctadecansäure

Gegenstand der Erfindung sind Schmierfette auf Basis von Alkali- und/oder Erdalkali-Metallseifen und Metallkomplexseifen auf Basis von R-10-Hydroxyoctadecansäure und deren Verwendung.

Taumelscheibe eines Taumelscheibenkompressors

Strahlungsbestaendige und hitzestabile fluessige Zusammensetzungen

GLEITELEMENT

Lubricant additives providing anti-oxidant, anti-wear and friction modifier properties

Slide member

Improvements in or relating to lubricating oil compositions

A phosphorus and sulphur containing compound suitable as a lubricating oil additive (see Group III), is obtained by reacting at elevated temperature one molecular proportion of a phosphorus sulphide with one to ten, preferably two to five molecular proportions of a hydrocarbon and further reacting the acidic product thus formed with 0.1 to 50 per cent of its weight of a hydrocarbon containing at least one olefinic double bond. The preferred phosphorus sulphide is the pentasulphide but other phosphorus sulphides, e.g. P2S3, P4S3 and P4S7 may be used. Mixtures of two or more phosphorus sulphides may also be employed. The hydrocarbons which may be reacted with phosphorus sulphide may be paraffins, olefines, olefine polymers, diolefines, acetylenes, aromatic or alkyl aromatic hydrocarbons, cycloaliphatic hydrocarbons, petroleum fractions, such as lubricating oil fractions, petrolatums, waxes, cracked cycle stocks, condensation products of petroleum fractions, or solvent extracts of petroleum ...

No Title

ESTERS OF -3,5-DISUBSTITUTED-4-HYDROXY-PHENYL-ALKANOLS AND THEIR USE AS STABILIZERS

... 1355109 Esters of -(3,5-disubstituted-4-hydroxyphenyl)alkanols GAF CORP 22 Sept 1971 [28 Sept 1970] 44225/71 Heading C2C [Also in Divisions C3 and C5] The invention comprises compounds of formula wherein R1 and R11 each represents a C 1-24 alkyl group, a C 7-18 aralkyl or a C 6-18 cycloalkyl group; R represents a C 1-25 alkyl group, a C 6-18 cycloalkyl group, a C 6-18 aryl group or. a C 7-18 arylalkyl group; m represents an integer of from 2 to 10 and n represents an integer of 1 to 9. The following compounds are prepared in the examples: terephthalate ester of 3-(3,5-di-tert.- butyl - 4 - hydroxyphenyl) - propanol; 1,2,4- benzenetricarboxylate of 3 - (3,5 - di - tert.- butyl - 4 - hydroxyphenyl) - propanol; stearate of 3 - (3,5 - di - teft. - butyl - 4 - hydroxyphenyl)- propanol; 3,6 - endomethylene - 1,2,3,6- tetrahydrophthalic acid ester of 3 - (3,5 - ditert. - butyl - 4 - hydroxyphenyl) - propanol; dimer acid ester of 3-(3,5-di-tert.-butyl-4- hydroxyphenyl) - propanol ...

Improvements in or relating to lubricating compositions

Amine fluoborates of formula RxABF4, where R is an amine and x is 1 or more, are prepared by interaction of an amine with a fluoborate such as ammonium fluoborate. Amines mentioned are aniline, diethylene triamine, 3-di-n-amylaminepropylamine, monoethanolamine, phenylethanolamine, aminoethylethanolamine and nitron (1,4-diphenyl-3,5-endoanilino-4,5-dihydro-1,2,4-triazole).ALSO:A lubricating composition comprises a major proportion of hydrocarbon oil and a minor proportion of a fluoborate RxHBF4, where R is an amine and x may be 1 or more. The hydrocarbon oil may be of natural or synthetic origin. Fluoborates mentioned are those of diethylene triamine, nitron, aniline, aminoethylethanolamine, 3 - di - n - amylaminopropylamine, monoethanolamine and phenylethanolamine. From 0.5 to 5 per cent of the fluoborate is preferably used. Additives, such as extreme pressure additives composed of chlorine-, sulphur- or lead-containing compounds, may also be added.

Aerogels and grease compositions made therefrom

A lubricating grease composition comprises a major proportion of an organic liquid possessing lubricating properties and a minor proportion of a non-collapsed soap aerogel. The organic liquid possessing lubricating properties may be mineral lubricating oil, a synthetic hydrocarbon, an organic ester, an organic polymer or a fluorinated hydrocarbon, and a list of suitable liquids is given. The soaps from which the non-collapsed soap aerogels can be made may be metal or organic base salts of fatty materials and mixtures thereof. Saponifiable materials which may be used to form soaps are fats and oils of animal, vegetable, marine or fish origin, fatty acids derived from such fats and oils, the hydrogenated or sulphurized products of such fatty acids, and the substitution derivatives of such fatty acids for example the mercapto amino or halogen substituted fatty acids. Saponifiable materials from other sources such as napthenic acids, tall oil fatty acids, rosin acids and acids produced by the ...

Grease compositions

A grease composition, suitable for lubrication under humid atmospheric conditions, comprises a major proportion of a water-immiscible lubricating oil thickened to grease consistency with a mixture of a substantially water-insoluble soap and a water water-soluble soap, the latter soap constituting not more than 25 per cent by weight of the soap mixture, and a minor proportion of a water-soluble corrosion inhibitor of a specified type. The lubricating oil may be a mineral oil, a synthetic hydrocarbon oil, an oxygenated oil or mixtures of hydrocarbon oil and oxygenated oil. Examples of oxygenated oils are polyalkylene glycols and their partial or complete ethers and esters, polyalkyl silicone polymers, and esters such as 2-ethylhexyl sebacate, dioctyl phthalate and triethylhexyl phosphate. Fatty oils such as lard oil or castor oil may be added to the lubricating oil. The substantially water-insoluble soap may be an alkaline earth metal, zinc, lead, cobalt, aluminium or other polyvalent metal ...

Organosilicon compounds

... 1,135,316. Organosilicon compounds. DOW CORNING CORP. 6 May, 1966 [21 May, 1965], No. 20196/66. Headings C3S and C3T. [Also in Division C5] An organosilicon compound comprises at least one unit where X is a chlorine, bromine or fluorine atom, R is a monovalent hydrocarbon, monovalent halohydrocarbon radical other than C 6 F 4 XCH 2 CH 2 -, a divalent hydrocarbon or halohydrocarbon radical having both valencies bonded to silicon atoms, a cyano-, mercapto- or amino-alkyl, alkylene ester or alkyl ether radical, a hydrolysable radical or atom, or a hydroxyl radical or a hydrogen atom, n is 1, 2, 3 or 4 and m is 0, 1, 2 or 3 and (m+n) does not exceed 4. The organosilicon compound may also contain units of the general formula R1 x SiO4-x/2, where R1 is a monovalent hydrocarbon, halohydrocarbon, cyano- or mercaptoalkyl, alkylene ester, alkyl ether, aminoalkyl radical or hydroxyl radical or a hydrogen atom and x is 0, 1, 2 or 3. The compounds can be prepared either by ...

COMPOUNDS USEFUL IN OLEAGINOUS COMPOSITIONS

ACYLATION OF NITROGEN-CONTAINING PRODUCTS

... 1282887 Polyolefin derivatives LUBRIZOL CORP 16 June 1969 [3 July 1968] 30409/69 Heading C3P [Also in Divisions C4-C5] Polyolefin derivatives suitable as dispersants for lubricating and fuel oils may be prepared by reacting (I) polyolefin substituted mono- or polycarboxylic acylating agents with (II) not more than one mole per equivalent of I of where R is an organic radical of valence n + 1 or, where n is 1, may be a direct linkage, and n is 1 to 3; X1 and X11 are independently O= or R 1 N=; when X1 is O = then Y is or where m is 0 or 1 to 8; when X1 is R 1 N= then R 1 is -(R11-NR1)m-R11-NR1R1 and Y is -NR1-(R11-NR1) m -R11-NR1R1 or R 1 and Y together form where q is 0 or 1 to 8; when X11 is O = then Z is O-M+, halo, alkoxy or Y as defined when X1 is O = and M+ is the cation of an amine; when X11 R 1 N = then ...

DEGRADED ETHYLENE-PROPYLENE INTERPOLYMERS USEFUL AS VISCOSITY MODIFIERS FOR LUBRICANTS

... 1352289 Oxidized ethylene/propylene copolymers LUBRIZOL CORP 7 Sept 1972 [16 Sept 1971] 41574/72 Heading C3P [Also in Division C5] Oil-soluble, oxidized, degraded ethylene/ propylene copolymers which cause substantially no increase in the fluidity of fuel oil at -20‹ C. when dissolved therein at a concentration of 0À02 weight per cent are prepared by oxidizing and degrading an ethylene/propylene copolymer having a molecular weight of at least 1000 by contacting with an oxygen-containing gas at a temperature of at least 100‹ C. in the presence of a minor amount of an aliphatic amine and for a time sufficient to effect a reduction in molecular weight of at least 5%. The copolymer may also contain up to 10 weight per cent of higher mono olefins and/or conjugated or non-conjugated dienes. The copolymer may be treated with oxygen, air or a mixture of oxygen with an inert gas while dissolved in an inert solvent. In examples mineral oil solutions of ethylene/propylene, ethylene / propylene / dicyclopentadiene ...

Improvements in lubricating compositions containing extreme pressure addition agents

An extreme pressure lubricating composition comprises a major proportion of a lubricating oil base, a minor proportion of an oil-soluble extreme pressure addition agent obtained by reacting a phosphorus-and sulphur-containing reagent with an organic material, and a minor proportion of an oil-soluble corrosion inhibitor chosen from a list given. The load carrying ability of the lubricating oil base is substantially increased by the inclusion therein of the minor proportion of the extreme pressure addition agent, which is one whose effectiveness is dependent upon its ability to react chemically with the metallic surfaces to be lubricated, while the inclusion of the corrosion inhibitor does not substantially decrease the extreme pressure proportions imparted by the extreme pressure addition agent. The lubricating oil base may be of mineral, animal, vegetable or synthetic origin or may comprise a mixture of mineral and non-mineral oils. Those fatty acids, such as oleic acid, which are oily ...

Resin sliding member

MIST OIL LUBRICATION SYSTEM

... 1422204 Mist oil lubricants CHEVRON RESEARCH CO 19 July 1973 [19 July 1972] 34548/73 Heading C5F A lubricating oil composition used in a mist oil lubricating system, comprises 0À001-2 wt. per cent of an oil-soluble copolymer of ethylene and another monomeric olefin having a viscosity average molecular weight of at least 5000. In examples the ability of ethylene-propylene copolymers to suppress stray mist is compared to that of polyisobutylene, polypropylene and polyalkylmethacrylates. The base oil can be a mineral oil, e.g. a 500 SUS (at 100‹ F.) neutral oil or a blend thereof with a 4000 SUS bright stock, or a synthetic oil such as alkyl, aryl or alkaryl phosphate esters, alkyl benzenes, polyoxyalkylene esters or glycols, ortho silicates and siloxanes. The compositions can also contain other additives such as zinc dialkyldithiophosphates and polyalkylmethacrylates.

Improvements in or relating to lubricating grease

A lubricating grease, especially suitable for the lubrication of railway car journals mounted in roller bearings, comprises a major proportion of a mineral lubricating oil with a viscosity index of at least 50, a minor proportion of a sodium-containing soap of a fatty material with an iodine number between 15 and 40 (this fatty material comprising a major proportion of 12-hydroxy-stearic acid and a minor proportion of an unsaturated fatty acid with 12-20 carbon atoms in the molecule), 0.2-1.0 per cent. by weight of glycerine or a glycol, and a trace of water. If desired, the sodium-containing soap may be a soda-lime soap, while the unsaturated fatty acid may be oleic acid or fatty acids of acidless tallow or cottonseed oil. The glycol may be a polyethylene glycol of molecular weight below 1,500. The grease may also contain 0.5-4 per cent. by weight of a sodium phosphate containing two or more atoms of sodium per molecule, particularly di- or tri-sodium orthophosphate. Other ingredients ...

Rock bit grease composition

Lubricated rolling bearing

A rolling bearing is protected from premature flaking even under severe conditions of high temperature, high speed and high load, by filling the bearing, which has elements (5) interposed for rotation between an outer race (4) and an inner race, with a lubricant composition, comprising a synthetic base oil, having a kinematic viscosity of 60-160 cSt at 40 DEG C, and 18-28 wt.% of a polyurea thickener. At least one of the inner-race and outer-race raceways is made of the heat hardened steel with an oxygen content not higher than 6ppm. ...

Sliding member with Cu, Ag and resin layers

A multi-layer sliding member has a backing metal 1, a Cu alloy layer 2 on the backing metal 1, an Ag layer 3 on the Cu alloy layer 3 and a resin layer 4 on the Ag layer 3. The Ag layer 3 is 3-50Ám thick and the resin layer 4 is 2-20Ám thick. The resin may be a thermoplastic, eg a fluorocarbon polymer (eg PTFE), an allyene sulfide resin (eg PPS), an aromatic polyether ketone resin (eg PEEK), a thermosetting resin (eg an epoxy resin or PAI), a phenolic resin, a polyamide resin, or a mixture of some of the above. Solid lubricants graphite or molybdenum disulphide may be added to the resin. The copper alloy 2 layer may contain Pb, Sn, Mn, Cr, Zn and the like. The Ag layer 3 may be pure Ag, or include Sb, Pd, Cu or Pb. The Ag layer 3 and/or the copper alloy layer 2 may be Pb free. The Cu alloy layer 2 can be sintered onto the backing metal 1 (which may be steel plate), the Ag layer 3 applied by wet electroplating, and the resin layer applied by air spraying.

Process and apparatus for carrying out chemical reactions

... 1,191,220. Gas/liquid fluidised bed catalytic reactor. SHELL INTERNATIONALE RESEARCH MAATSGHAPPIJ N.V. 5 July, 1968, No. 32239/68. Heading B1F. [Also in Division C5] In a gas/liquid fluidised bed catalytic reactor, Fig. 1, oil to be desulphurised from heat exchanger 4 and furnace 7 is introduced at 8 and passes up through reactor 9 together with hydrogen gas from 11 through perforated gas distributors 10, 17 and 24 and fluidised catalyst beds 14, 19 and 27 supported on grids 12 covered with a wire mesh screen and ceramic balls 13, 20 and 26. Hydrogen is introduced via 21 and 20. Cooling quench oil is introduced at 16 and 21. Desulphurised product leaves at 36 and hydrogen is recycled via 11. The gas distributors 10, 17 and 24 comprise an upper horizontal perforated plate, a lower horizontal plate and chimneys passing through the distributors.

Improvements in the treatment of fatty oils

... 572,458. Fatty oils and sperm wax compositions. EVANS, E. A., ELLIOTT, J. S., and WAKEFIELD & CO., Ltd., C. C. Dec. 8, 1943, No. 20548. [Class 91] Fatty oils and the liquid wax comprising sperm oil contain a small proportion of a polycyclic aromatic hydrocarbon having at least 4 condensed rings combined in the form of a pyrene nucleus. The compounds may contain further condensed nuclei in any position and any of the compounds may be substituted in any position by other radicals such as alkyl or hydroxyl. The compounds specified comprise pyrene, 3 : 4 benzpyrene, 4<1>-hydroxy-3 : 4 benzpyrene, tetrahydrobenzpyrene, and 1 : 12 benzperylene. Mixtures of the compounds may be used such as coal tar "heavy oil." In comparison tests, anthracene and phenanthrene are mentioned amongst others. The provisional specification also includes the 3 isomeric benzanthracenes and the 4 isomeric benzphenanthrenes. The fatty oils specified comprise castor, rapeseed, seal, ground nut, whale, linseed, lard, coconut ...

Improvements in or relating to lubricating oils and processes for preparing the same

A normally solid hydrocarbon wax of 15-100 C atoms is converted into a lubricant by heating with one or more olefins of from 2-10 C atoms, at 400-700 DEG F. and superatmospheric pressure in the presence of a hydrocarbon halide catalyst, separating lighter constituents, preferably those boiling below 250 DEG F. at 1 mm., by distillation, and de-waxing the heavy residue to give a resulting composition having a viscosity index of at least 100 and a pour point not greater than about 10 DEG F. The preferred waxes are crystalline and micro-crystalline waxes recovered from petroleum oils and consisting of paraffins of 20-40 C atoms. Other waxes include paraffins from pentadecane up to heptacontane; hydrocarbons containing a ring and a long chain substituent, e.g. dodecylcyclohexane, octadecylbenzene, 2-octadecyldecalin, and tetradecylcyclopentane; ceresin, ozokerite; polyethylenes and synthetic waxes from the Fischer-Tropsch process; waxes from destructive or non-destructive hydrogenation; and ...

Improvements in and relating to lubricants

... 327,097. Prendergast, R. S., Prendergast, C. S., Sonsthagen, A., and Pearson, F. Sept. 22, 1928. Lubricants for machinery subject to friction and rapidly varying pressure e.g. gear wheels, friction gears, and roller bearings, contain such proportions of a metal, metal oxide, or metal compound, electropositive to the steel or other metal of the gears as to make the lubricants anodic thereto, such proportion being ascertained; by the following formula:- where A = the percentage of the electropositive component, a = the potential in volts of the electropositive component, b = the potential in volts of the metal of the gears &c., c = the percentage of water in the complete lubricant, K = 1312, 1180, or 770 according as the working conditions are ideal, normal, or bad. Electropositive substances specified are zinc, zinc oxide, and, according to the Provisional Specification, zinc carbonate, cadmium, and cadmium oxide. Pure mineral oil, fixed oil, and grease lubricants are referred to. One or ...

Improvements in or relating to lubricating media

Lubricants suitable for laminated springs, gear-wheels, and bearings are composed of white lead, graphite, and a vegetable, mineral, or fish oil, grease, or fat; a small proportion of glycerine may be added. The products may be distinctively coloured, and may be given a distinctive odour, e.g. by peppermint. In an example, 83,1 lb. of white lead, 5,2 lb. of powdered graphite, 10,4 lb. of petroleum grease, and 1,3 lb. of glycerine are mixed.

A cam shaft and composite cam with outer surfaces impregnated with a solid lubricant

A composite cam 84, comprising least two layers, and a cam shaft 70 have an outer porous layer impregnated with a solid lubricant 50 having an affinity to oil to reduce operating friction. The solid lubricant may be graphite and molybdenum disulphide in a matrix of metal or polymer composition. Cam 84, formed by powder metallurgy, has an inner layer 90 of eg soft/low carbon steel and the outer layer has hardened base circle and lobe portions 86, 88 of porous medium/high carbon Ni-Cr alloy steel. Alternatively the outer layer may be made porous by the addition of an arc plasma spray coating of a hard material, eg tungsten carbide. An anodised surface of aluminium or magnesium alloy provides the outer porous layer for the cam shaft 70 and bearing members 80 which are provided with a plurality of grooves 82. Cam 84 is assembled on the shaft 70 by expanding, eg hydraulically, the shaft's outer diameter. Also disclosed is the surface treatment of a valve guide and tappet.

Sliding bearing and method of manufacturing the same

Plain bearing and process for producing the same

A slide member for a slide bearing

A slide member 3 comprising a base member 1 and an overlay 22 provided on a slide receiving surface 7 of the base member wherein the overlay is formed by attaching a mixed solid lubricant 2C to the slide receiving surface of the base member. The mixed solid lubricant is made by mixing at least two kinds of solid lubricants which are; a large amount of hydrogen containing solid lubricant 2A which contains a large amount of hydrogen, and a small amount of hydrogen containing solid lubricant 2B which contains a smaller amount of hydrogen. A lubricant absence region (4, figure 4) may be provided where the overlay is absent on the slide receiving surface of the base member after sliding. An oxidized portion (5) may be provided where the base member is oxidized toward the inside of the base member from the lubricant absence region.

A resin sliding member suitable for a bearing

A resin sliding member 1 is provided. The resin sliding member 1, includes: 0.5 to 25 vol% of calcium fluoride 5 dispersed as particles; and a polyether ether ketone (PEEK) resin 4 as a remainder. The calcium fluoride 5 is crystalline, and a peak intensity of a (111) plane of the calcium fluoride 5 exposed on a sliding surface is larger than a peak intensity of a (220) plane when measured by an X-Ray Diffraction (XRD) method.

Lubricating oil compositions

Composite lubricating material, engine oil, grease, and lubricant, and method of producing a composite lubricating material

Provided are a composite lubricating material, engine oil, grease and lubricant, excellent in lubricity. The composite lubricating material comprises at least a graphite-based carbon material and/or graphene-like graphite exfoliated from the graphite-based carbon material dispersed in a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31A or more: Rate (3R) = P3/ (P3+P4) x100 • • • • Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.

Novel hydroxy thio benzamides

The invention comprises a hydroxythiobenzamide having the general formula wherein R1 and R2 are C1-C20 alkyl groups or C7-C20 aralkyl groups, R3 and R4 are each alkyl, cycloalkyl, aralkyl, aryl or alkaryl groups or R3 and R4 are groups which may be bonded together through an oxygen atom to form with the N atom depicted a morpholine ring. They may be obtained (a) by heating sulphur with a compound having the formula wherein R1 to R4 are as defined above or by heating with sulphur a compound having the formula and an amino compound having the formula the radicals R1 to R4 being as defined above. In method (a) the reaction temperature may vary from 100 DEG C. to the reflux temperature of the mixture (but not exceeding 300 DEG C.) and is preferably from 130 DEG to 220 DEG C, and in method (b) the temperature may vary from 50 DEG C. to the reflux temperature of the highest boiling reaction mixture (about 300 DEG ...

Oil-soluble nitrogen-containing products and process for preparing same

A lubricating composition comprises a major proportion of a hydrocarbon lubricating oil and a minor proportion of an oil-soluble, acylated nitrogen-containing compound having within its structure (A) a substantially hydrocarbon-substituted succinoyl, succinimidoyl or succinoyloxy radical wherein the hydrocarbon substituent contains at least 50 aliphatic carbon atoms and (B) a nitrogen-containing group having a nitrogen atom attached directly to the succinic radical (A), the remaining valence or valences of said nitrogen being satisfied by one or more hydrogen atoms or hydrocarbon, hydroxyalkylamino - substituted hydrocarbon, hydroxy-substituted hydrocarbon, alkoxy-substituted hydrocarbon, amino, carbamyl, thiocarbamyl, guanyl, or acylimidoyl radicals, or an N-hydrocarbon-substituted amino, carbamyl, thiocarbamyl, guanyl or acylimidoyl radical.ALSO:An oil-soluble acylated nitrogen composition is obtained by reacting a substantially hydrocarbon-substituted succinic acid, halide, ester or ...

Mixed esters of 1,1,1-trimethylolethane and lubricant compositions containing them

The invention comprises a mixed ester of 1,1,1-trimethylol ethane in which two hydroxy groups are esterified with the same or two different straight chain C4-6 alkanoic acids and the other hydroxyl group is esterified with a straight chain C7-10 alkanoic acid, the ester having a molecular weight of from 390 to 460. The invention also comprises the product obtainable by esterifying the triol with a mixture of about 2 equivalents of one or more of the C4-6 acids and about 1 equivalent of one or more of the C7-10 acids, the product having a molecular weight of from 390 to 460. The esters may be made by mixing the triol with the acids and then heating until reaction is complete or reacting the triol with one acid and then reacting the partial ester formed with the other acid or acids. Solvents and a catalyst or active carbon may be present. The preparation is described of the trimethylol ethane divalerate mono pelargonate, dibutyrate mono pelargonate, divalerate mono heptanoate, divalerate ...

Graphite-based carbon material useful as graphene precursor, as well as method of producing the same

A graphite-based carbon material is disclosed which is suitable as a graphene precursor, from which a highly-concentrated graphene dispersion can easily be obtained. The graphite-based carbon material has rhombohedral graphite layer and a hexagonal graphite layer wherein a Rate, which is defined by Equation 1, is 31% or more: Rate = P3/ (P3+P4) x100 Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer based on the X-ray diffraction method. The graphite-based carbon material can be produced by carrying out radiowave and physical treatment on a natural graphite material.

Improvements in the lubrication of earth boring drills and other machinery working under similar conditions

Lubricants for crushing mills, the rolling cutters of rotary earth-boring drills, or other apparatus in which the lubricant is fed by the pressure of the flushing fluid, consist of a heavy-grade lubricant having its specific gravity made greater than unity by the addition of a heavy-pulverized mineral substance such as barium sulphate or lead oxide.

Apparatus for ultrasonic imaging

In ultrasonic imaging apparatus comprising a portable scanning module including a liquid-filled enclosure (51) having a window (52) through which a beam of ultrasonic energy from a transducer (80) scans a subject, the transducer is of an elliptical elongate configuration and the reflective scanner and scanning window are of elongate form in the direction of scan. The window is of rigid material and is inclined with respect to the beam. In one form, the scanning is effected by means of an oscillating reflector (70). In another form, the reflector is omitted, the ultrasonic energy from the transducer passing directly through the window (Figure 6, not shown) with scanning being effected by oscillation of the transducer. The focus may be changed in embodiments using a segmented transducer (80) in conjunction with variable delays (100) and phase control circuits (120). ...

TRIAZINE DERIVATIVES

... 1320568 Hexahydro-s-triazine derivatives GAF CORP 2 June 1970 [5 June 1969] 26594/70 Heading C2C [Also in Divisions C3 and C5] Novel hexahydro-s-triazine derivatives have the following general formula wherein R and R1 are each (C 1 -C 24 ) alkyl groups, or aryl, cycloalkyl or aralkyl groups, provided that when one of R and R1 is alkyl, the other is hydrogen, halogen, or an alkoxy, carbalkoxy, haloalkyl, acyl or alkoxycarbonyl group; n is 0 or 1; A is an alkylene chain, and at least one of R and R1 is ortho to the hydroxy group. The novel compounds may be prepared by either (a) reacting trioxane with acrylonitrile in the presence of H 2 SO 4 to give hexahydro- 1,3,5-triacrylyl-s-triazine and reacting this with a 2,6-dialkylphenol in the presence of a base, (b) reacting phenol with acrylonitrile in the presence of HCl and AlCl 3 to give 4-hydroxybenzyl cyanide, reacting this with an olefin in the presence of an acid to give 3,5-dialkyl-4- hydroxybenzylcyanide and ...

EXTREME PRESSURE LUBRICATING COMPOSITION

... 1337360 Extreme pressure lubricants CHEVRON RESEARCH CO 1 June 1972 [1 June 1971] 25699/72 Heading C5F Lubricants comprise an oil, 1-60 wt. per cent of amorphous sodium borate having a particle size of less than 1 Á and 0À5-4 waters of hydration and a dispersant mixture consisting of 40-99À9 wt. per cent of a Group II metal and sulphur containing anionic lipophilic surface-active agent (many examples given, mostly of sulphonates) and 60-0À1 wt. per cent of a lipophilic nonionic surface-active agent (e.g. alkenyl succinimides and pentaerythritol derivatives). Conventional additives may also be present.

LUBRICATING COMPOSITIONS

... 1471313 Lubricants INSTITUT FRANCAIS DU PETROLE 3 June 1974 [4 June 1973] 24483/74 Heading C5F [Also in Division C3] A lubricating composition comprises at least 5% of hydrocarbon oil, which may be a mineral oil or an olefine oligomer, and at least 5% of an ester-ether of the formula R4(COX) m , where R4 represents the hydrocarbon radical of a dimeric or trimeric acid derived from an unsaturated aliphatic monocarboxylic acid of 14 to 22 carbon atoms per molecule, or a mixture of the dimeric and trimeric acids, m is 2 or 2 respectively, and X represents monovalent radicals of which 85 to 1% are of the formula -OR6 and 15 to 99% of the formula -(OR5) n OR6, where R6 represents the hydrocarbon radical of a monohydrie aliphatic or alicyclic alcohol or phenol, R5 represents an alkylene radical, up to C 5 , and n is a number from 2 to 50. The dimeric or trimeric acid may have been hydrogenated. The composition may also contain up ...

SYNTHETIC OILS

N-vinyl-2-piperazinones and polymers thereof

Gasoline and lubricating oil compositions contain polymers or copolymers of N-vinyl-2-piperazinones of formula in which R1 is hydrogen; C1-C18 alkyl; aralkyl or alkaralkyl each containing up to 18 carbon atoms, and in each of which each alkyl group contains up to 8 carbon atoms; dialkylaminoalkyl of up to 12 carbon atoms, and in which each alkyl group contains up to 8 carbon atoms; or furfuryl; R2 individually, is hydrogen or methyl; R3, individually, is hydrogen; C1-C18 alkyl; phenyl; naphthyl; alkyl-, chloro- or alkoxy-substituted phenyl or naphthyl each containing up to 18 alkyl carbon atoms; aralkyl or alkaralkyl of up to 18 carbon atoms; or 2-furyl; R2 and R3 collectively, represent an alkylene group containing up to 18 carbon atoms which together with the carbon atom to which it is attached forms a ring having 5 to 7 cyclic atoms; R4, individually, is hydrogen or C1-C4 alkyl; R, individually, is hydrogen or C1-C4 alkyl and R4 and R5, collectively, represent ...

LUBRICANT COMPOSITIONS

LUBRICANT COMPOSITION

A composite electrically-conductive material

A composite thermally-conductive material

Partial amides of hydrogenated dimer acids and lubricating compositions containing such amides

A lubricant composition comprises an ester-based synthetic fluid of lubricating viscosity, a novel ester oil-soluble amide of an hydrogenated dimer acid having the formula (B)x-A-(CONRR1)2- x wherein A is the hydrocarbon residue of an hydrogenated dimer of a C16- 22 polyolefinic fatty acid, B represents -COOH groups or ester groups or both, R and R1 represent hydrogen, tetrahydrofurfuryl or an hydrocarbon radical optionally substituted with non-deleterious substituents, x is a positive number up to 1.7 and there being on the average up to 1/2 olefinic bond per molecule, and optional amounts of natural esters, methyl silicone polymer foam inhibitors and alkylene diamine tetraacetic acid tri-ester metal salt antioxidants. The lubricating ester component is preferably a neopentyl polyol polyester.ALSO:Novel ester oil-soluble amides of hydrogenated dimer acids having the formula (B)x-A-(CONRR1)2-x wherein A is the hydrocarbon residue of a hydrogenated dimer of a C16- 22 polyolefinic fatty acid ...

A lubricating oil emulsion

A non-inflammable lubricant, especially suitable for cooling hot bearings, is made by emulsifying machine oil, wagon oil, cylinder oil, or other mineral oil with saturated lime-water, which forms 30-60 per cent by weight of the emulsion. The ingredients are incorporated under pressure greater than atmospheric. Specification 108/76 is referred to.

Lubricating compositions

Disc drive spindle mortor having hydro bearing with optimized lubricant viscosity

Improvements in or relating to extreme pressure lubricants

An extreme pressure lubricant comprises mineral lubricating oil having dissolved therein between 0.5 and 5 per cent. of a compound obtained by reacting sulphur dichloride with an aliphatic ester of an alkylated salicylic acid in the presence of an inert solvent and a catalyst consisting of ferric chloride, zinc chloride or titanium tetrachloride. The inert solvent may be chloroform, carbon tetrachloride or other chlorinated aliphatic hydrocarbon or carbon bisulphide. The reaction products are compounds of the general structural formula:- where R is an alkyl group preferably having from 1 to 8 carbon atoms and R1 is one or more similar alkyl radicles. Typical examples of such reaction products are di(isobutyl, methyl salicylate) sulphide, di(octyl, methyl salicylate) sulphide and di (isobutyl, octyl salicylate) sulphide. Other additives such as pour depressants, sulphurized oils, high molecular weight chlorinated compounds, dyes and anti-corrosion agents, may be included ...

Improvements relating to lubricating oils

Mineral lubricating-oils are stabilized by adding diarylthio-ethers in which both aryl groups contain a nucleus-substituted hydroxy group. Substances of the following general formula are preferred in which the group R is in the para-position relative to the hydroxy group, and is an alkyl group such as ethyl, isopropyl, tertiary amyl or butyl, or normal butyl. Other substituents such as an aralkyl, aryl, cyano or halogen group may be present. Substances specified are: 2 : 2<1>-dihydroxy(-5 : 5<1>-ditertiary butyl) diphenyl thioether or the corresponding ditertiary amyl compound, 4 : 4<1>-dihydroxy diphenyl thio ether, dicresol thio ether, or di-b -naphthol thio ether. These are added to mineral oil distillates or residues which may be refined by selective solvent extraction, chemical reagents, voltolization, hydrogenation, or de-waxing, or to mixtures of these oils Dyes, soaps, pour-point depressant, resins, rubber, fatty oils, organometallic compounds, waxes, graphite ...

OLEOPHILIC TIN SULPHIDES AND INCORPORATION THEREOF IN LUBRICATING COMPOSITIONS

... 1,216,091. Tin sulphide. BRITISH PETROLEUM CO. Ltd. 28 Feb., 1968 [20 March, 1967], No. 12841/67. Heading C1A. [Also in Divisions C3, C5 and F2] Oleophilic tin sulphide is made by grinding one or more tin-sulphides in an organic liquid which distils below 500‹ C., has a viscosity below 600 centistokes at 38‹ C. and a surface tension below 72 dynes/cm. at 25‹ C., in the absence of air until the surface area of the tin sulphide is 5-400 m.2/gm. (N 2 adsorption). The sulphide may be used in lubricating compositions and composites for bearings.

Improvements in or relating to lubricating oils

A lubricant comprises a lubricating oil having dispersed therein both a small proportion of an organic compound of nickel, e.g. a nickel soap such as nickel oleate, and a small proportion of an organic compound of chromium, e.g. chromium oleate, with or without one or more other sludge-preventing compounds, e.g. organic compounds of tin or lead. Specifications 423,441, 431,066, and 455,096 are referred to. The Provisional Specification describes also a lubricant comprising a lubricating oil to which is added an organic compound of nickel and one or more other sludge-preventing substances, e.g. organic compounds of tin or lead.

Grease composition and bearing

The invention provides a grease composition containing a thickener, a base oil and an antistatic agent, where the antistatic agent includes at least one selected from the group consisting of Li(CF 3 SO 2 ) 2 N and Li(CF 3 SO 2 ) 3 C; and a mechanical part where the above-mentioned grease composition is packed. The composition of the invention shows satisfactory results in the antistatic properties and the acoustic property.

Grease composition and mechanical part

The invention provides a grease composition containing a base oil, a thickener and an additive, characterized in that the base oil has a kinetic viscosity at 40° C. of 50 to 200 mm 2 /s; the thickener contains a diurea compound represented by formula (I): R 1 —NHCONH—R 2 —NHCONH—R 3 (wherein R 2 is a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms, and R 1 and R 3 , which may be the same or different, represent cyclohexyl group or a straight-chain or branched alkyl group having 8 to 22 carbon atoms); and the additive is at least one selected from the group consisting of a metal salt of naphthenic acid, a salt of a fatty acid having 6 to 10 carbon atoms and an aliphatic amine having 6 to 10 carbon atoms, and a metal salt of an organic sulfonic acid. The composition of the invention shows excellent anti-fretting properties under the conditions of ordinary temperature to low temperature (e.g., −50° C., preferably about −40° C.).

Solid Lubricant

A solid lubricant is for a bearing and includes at least thirty percent by weight of graphite, a binding material, and inorganic lubricating nanoparticles. Also, a bearing filled with the solid lubricant is provided.

Rolling bearing

There is provided a rolling bearing which inhibits spalling of a rolling element and has a long service life even under rigorous environments. The rolling bearing comprises grease for lubricating rolling contact parts and/or sliding contact parts between a first raceway surface and a rolling elements and/or between a second raceway surface and a rolling elements, wherein the grease comprises a base oil, a thickener and an extreme pressure additive, the thickener is a diurea compound obtained by allowing an amine mixture comprising alkylphenylamine, alkyl group of which has 8 to 16 carbon atoms, and cyclohexylamine, to react with a diisocyanate compound, an amount of cyclohexylamine in the total amount of the alkylphenylamine and cyclohexylamine is from 91 to 99% by mole, and a reaction temperature of the extreme pressure additive with iron is 260° C. or lower.

Thickener, grease, method for producing the same,and grease-packed bearing

The present invention provides a thickener which allows grease having an excellent durability in a high-temperature and high-speed condition to be produced, the grease containing the thickener, a method of producing the thickener and the grease, and a grease-packed bearing. A grease ( 7 ) to be packed in a bearing ( 1 ) is obtained by adding a thickener for a grease comprising a compound shown by a chemical formula (1) shown below or a compound shown by a chemical formula (2) shown below; In the chemical formula (1) or the chemical formula (2), R 1 shows a diamine residue or a diisocyanate residue; R 2 shows a residue of a dicarboxylic acid in which two adjacent carbon atoms form an imide ring or residues of derivative of the dicarboxylic acid; R 3 shows a tetracarboxylic acid residue or residues of derivatives of the tetracarboxylic acid; R 4 shows a hydrogen atom residue, a monoamine residue or a monoisocyanate residue; and n indicates integers of 0 through 5.

Lubricant base oil and lubricant composition

A lubricating base oil includes at least one of ionic liquids containing a compound represented by a formula (1): Z + A − , in which Z + represents a cation and A − represents an anion, in which Z + is a cyclic quaternary ammonium ion having two different side chains and A − is a conjugated amide ion.

Pentaerythritol tetraester

A pentaerythritol tetraester which is a mixed ester of pentaerythritol and carboxylic acids is provided, wherein the carboxylic acids consist of isobutyric acid and 3,5,5-trimethylhexanoic acid and the molar ratio of isobutyric acid to 3,5,5-trimethylhexanoic acid in the carboxylic acids is 36/64 to 80/20. The pentaerythritol tetraester may be used in a refrigerant oil or the like which exhibits excellent miscibility with a difluoromethane refrigerant among other properties.

Lubricant system and method of forming the same

A lubricant system is disclosed that is formed by contacting a fibrous network with oil and/or lubricating fluid having an affinity for the fibrous network. The fibrous network comprises oleophilic fibers having a diameter between 50 nm and 10 microns and a length that is at least times the diameter. In addition, the oleophilic fibers have an affinity for the oil and/or lubricating fluid.

Apparatus for use in a system containing a lubricating fluid and method of forming the same

An apparatus is disclosed for use in a system containing at least one of an oil and a lubricating fluid. The apparatus comprises a surface in need of lubrication during operation of the apparatus, and oleophilic fibers disposed on the surface. The oleophilic fibers have a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter. In addition, the oleophilic fibers have an affinity for at least one of the oil and the lubricating fluid.

Hydrophilic composition for use with a lubricating system as well as an apparatus and method for using the same

A hydrophilic composition for use with a lubricating system comprises hydrophilic fibers having a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter. The hydrophilic fibers having a strong affinity for at least one of water and other hydrophilic fluids and may remove or eliminate free or dissolved water in a lubricating system comprising at least one of an oil and a lubricating fluid.

Lubricating oils and greases

A lubricating oil composition comprises an amide and at least one additive. A lubricating grease composition comprises a liquid amide, a thickener comprising a metal soap, and at least one additive. The amide in each composition is the reaction product of a secondary, branched amine and a carboxylic acid. The carboxylic acid may be a monocarboxylic acid or a dicarboxylic acid, including dimer acid. The amide is hydrolytically stable, and may be used to increase the hydrolytic stability of the lubricant oil or grease composition. Alternatively, the amide may be used to increase the additive solubility or detergency of the lubricant oil or grease composition.

Lubricating Grease Composition

A lubricating grease composition for a resin member is used to be supplied as a lubricant on a surface of at least a sliding portion of a resin member including the sliding portion with an other member. The lubricating grease composition for a resin member contains a base oil which is a mixed oil of a poly-α-olefin having a kinetic viscosity at 40° C. of 18 to 50 mm/s and an ethylene-α-olefin copolymer having a number average molecular weight of 40,000 to 200,000, a lithium-based complex soap as a thickener and a polytetrafluoroethylene resin as a solid lubricant having a mixing ratio of 4 to 12 mass % to the entire lubricating grease composition, wherein the base oil has a kinetic viscosity at 40° C. of 80 to 200 mm/s and a worked penetration of the lubricating grease composition ranges from 265 to 340. 1. A lubricating grease composition for a resin member used to be supplied as a lubricant on a surface of at least a sliding portion of a resin member including the sliding portion with an other member , wherein the lubricating grease composition for a resin member contains{'sup': '2', 'a base oil which is a mixed oil of a poly-α-olefin having a kinetic viscosity at 40° C. of 18 to 50 mm/s and an ethylene-α-olefin copolymer having a number average molecular weight of 40,000 to 200,000,'}a lithium-based complex soap as a thickener, anda polytetrafluoroethylene resin as a solid lubricant having a mixing ratio of 4 to 12 mass % to the entire lubricating grease composition,{'sup': '2', 'wherein the base oil has a kinetic viscosity at 40° C. of 80 to 200 mm/s, and'}a worked penetration of the lubricating grease composition ranges from 265 to 340.2. The lubricating grease composition for a resin member according to claim 1 , wherein the ethylene-α-olefin copolymer has a mixing ratio ranging from 1.5 to 3.5 mass % to the entire lubricating grease composition.3. The lubricating grease composition for a resin member according to claim 1 , wherein a material of the resin ...

Lubricating Grease Composition

A lubricating grease composition for a polyamide resin member is used to be supplied as a lubricant on a surface of at least a sliding portion of the polyamide resin member including the sliding portion with an other member. The lubricating grease composition for a polyamide resin member contains a base oil which is a synthetic hydrocarbon oil, and a thickener which is at least one metal complex soap of a barium complex soap and a lithium complex soap, wherein a kinetic viscosity at 40° C. of the base oil ranges from 30 to 200 mm/s and a drop point of the thickener is 270° C. or more. 2. The lubricating grease composition for a polyamide resin member according to claim 1 , wherein the base oil is a single oil of a poly-α-olefin or a mixed oil of the poly-α-olefin and an ethylene-α-olefin copolymer.3. The lubricating grease composition for a polyamide resin member according to claim 1 , wherein the other member is a metal member. The present application is a continuation application of International Patent Application No. PCT/JP2016/054892 filed on Feb. 19, 2016, which claims priority to Japanese Patent Application No. 2015-066850, filed on Mar. 27, 2015. The contents of these applications are incorporated herein by reference in their entirety.The present disclosure relates to a lubricating grease composition for a polyamide resin member used to be supplied as a lubricant on the surface of at least a sliding portion of a polyamide resin member including the sliding portion where, for example, the other member comprising a resin member or a metal material slides or which slides on the other member.Heretofore, greases have been used as lubricant compositions in various industrial fields such as steels, automobiles, general machineries, and precision instruments. In recent years, polyamide resins have been commonly used as the member for sliding portions, and the like, of automobile parts, and the like, for the purpose of improving heat resistance in light of being used ...

Grease composition and rolling device

A grease composition which is excellent in seizure resistance can be provided without deteriorating resistance to stirring, in the rolling device, and a rolling device in which the grease composition intervenes to a predetermined portion can be also provided by use of a grease composition comprising a base oil, a thickener and an amine antioxidant, the thickener being a diurea compound obtained by allowing an amine mixture comprising alkylphenylamine, an alkyl group of which has 8 to 16 carbon atoms, and cyclohexylamine, to react with a diisocyanate compound, the amount of cyclohexylamine in the amine mixture being 91 to 99% by mole, and the amount of the amine antioxidant in the grease composition being 21% by mass or more.

ALUMINUM ALLOY FOR SLIDE BEARING, AND SLIDE BEARING

An aluminum alloy for a slide bearing of the present invention contains: 0 mass % or more and 10.0 mass % or less of Sn and 0 mass % or more and 5.0 mass % or less of Si, 0 mass % or more and 2.0 mass % or less of Cu as a solid-solution strengthening component, at least one of 0.05 mass % or more and 0.35 mass % or less of Cr, 0.05 mass % or more and 1.5 mass % or less of Mn, and 0.05 mass % or more and 0.3 mass % or less of Zr as a precipitation strengthening component, 2.3 mass % or more and 6.0 mass % or less of Ag, a part of which is dissolved to form a solid solution and the rest of which is precipitated, and the balance consisting of unavoidable impurities and Al. 1. (canceled)2. (canceled)3. An aluminum alloy for a slide bearing , comprising:more than 0 mass % and 10.0 mass % or less of Sn and more than 0 mass % and 5.0 mass % or less of Si;0 mass % or more and 2.0 mass % or less of Cu as a solid-solution strengthening component;at least one of 0.05 mass % or more and 0.35 mass % or less of Cr, 0.05 mass % or more and 1.5 mass % or less of Mn, and 0.05 mass % or more and 0.3 mass % or less of Zr as a precipitation strengthening component;2.3 mass % or more and 6.0 mass % or less of Ag, a part of which is dissolved to form a solid solution and the rest of which is precipitated; andthe balance consisting of unavoidable impurities and Al.4. A slide bearing comprising an aluminum alloy layer containing:more than 0 mass % and 10.0 mass % or less of Sn and more than 0 mass % and 5.0 mass % or less of Si;0 mass % or more and 2.0 mass % or less of Cu as a solid-solution strengthening component;at least one of 0.05 mass % or more and 0.35 mass % or less of Cr, 0.05 mass % or more and 1.5 mass % or less of Mn, and 0.05 mass % or more and 0.3 mass % or less of Zr as a precipitation strengthening component;2.3 mass % or more and 6.0 mass % or less of Ag, a part of which is dissolved to form a solid solution and the rest of which is precipitated; andthe balance consisting ...

LUBRICATING BASE OIL FOR FLUID DYNAMIC BEARING

An object of the present invention is to provide an ester-based lubricating base oil for a fluid bearing that has a high viscosity index and excellent evaporation resistance, hydrolytic stability, and low-temperature fluidity. The present invention relates to a lubricating base oil for a fluid bearing containing a compound represented by general formula (1): 2. The compound according to claim 1 , having 27 to 35 carbon atoms in total.3. The compound according to claim 1 , wherein the difference between n and m in general formula (1) is 2 to 9.4. A lubricating base oil for a fluid bearing comprising the compound of .5. The lubricating base oil for a fluid bearing according to claim 4 , wherein the content of the compound is 90 mass % or more based on the total mass of the lubricating base oil for a fluid bearing.6. A lubricating oil composition for a fluid bearing claim 1 , the composition comprising the compound of .7. A lubricating oil composition for a fluid bearing claim 4 , the composition comprising the lubricating base oil for a fluid bearing of .8. The lubricating oil composition for a fluid bearing according to claim 6 , further comprising an antioxidant. The present invention relates to a lubricating base oil for a fluid bearing.Ball bearings and roller bearings have been used as bearings in motors mounted in, e.g., hard disk drives (HDDs). However, due to demand for, for example, downsizing, vibration reduction, and decreased motor noise, fluid bearings have been put into practical use.Along with the higher performance of audiovisual equipment or office automation equipment, and the widespread use of cellular phones, spindle motors equipped with fluid bearings are being increasingly used. Due to the recent strong demand for higher speed and downsizing of spindle motors, fluid bearings are required to achieve lower torque. To meet the demand for lower torque, lubricating base oils with a relatively low viscosity have been selected. Examples of such low- ...

Ultraviolet curable resin composition, sliding member, and method for producing sliding member

There is provided a resin composition for a machinable liner of a sliding member. An ultraviolet curable resin composition for a self-lubricating liner contains a (meth)acrylate compound having an isocyanuric acid ring represented by the following formula and PTFE as a solid lubricant. In the formula (1), X is a group which contains an acryloyl group and is composed only of C, H, and O. Y and Z are groups each composed only of C, H, and O. PTFE is contained in an amount of 10 to 50% by weight with respect to a total amount of the ultraviolet curable resin composition. The ultraviolet curable resin composition is suitable for a self-lubricating liner 24 of a spherical bearing 20 having an outer race 22 and an inner race 26.

Method of Lubricating a Mechanical Device with High Pyrophosphate Level Lubricant

A lubricant composition is provided containing an oil of lubricating viscosity and a substantially sulfur-free alkyl phosphate amine salt, where at least 30 mole percent of the phosphorus atoms are in an alkyl pyrophosphate salt structure, along with either or both of a conventional phosphorous containing antiwear additive and a glycerol ester. In the phosphate amine salt, at least 80 mole percent of the alkyl groups are typically secondary alkyl groups of 3 to 12 carbon atoms. A method of improving wear over a wide temperature range in a mechanical device is also provided by employing the lubricant composition.

Composition for Sliding Member

A composition for sliding member includes a binder resin, a solid lubricant, and an epoxy modified silicone oil having an epoxy group at both ends or at one end thereof. A weight ratio of the binder resin and the epoxy modified silicone oil is 97:3 to 75:25.

Lubricant base oil for fluid bearing

An object of this invention is to provide a lubricating base oil that has a small rate of change in viscosity (a high viscosity index) over a wide temperature range, low viscosity at low temperatures, and good low-temperature fluidity and evaporation resistance, and that allows reduced decomposition thereof. To achieve the object, methylpentanediol diesters obtained by using specific aliphatic monocarboxylic acids are used as a lubricating base oil.

Marine engine lubrication

A trunk piston lubricating oil composition of TBN 20 to 60 comprising (A) a high saturates low sulphur oil of lubricating viscosity in a major amount; (B) an overbased metal hydroxybenzoate detergent additive; (C) a polyisobutene succinic anhydride additive (1-7 mass %); and (D) a meta-linear pentadecyl phenol additive (10.1 to 10 mass %), the weight ratio of (D) to (C) being less than 1 and the combined treat rate of (B), (C) and (D) being 5 to 30%. The composition is useful to improve asphaltene dispersancy when lubricating a medium-speed compression-ignited marine engine fueled by a heavy fuel oil.

BEARING ASSEMBLY WITH SURFACE LAYER

A bearing assembly is disclosed that includes a first component with a first bearing surface, and a second component with a second bearing surface. A fluid is disposed between the first bearing surface and the second bearing surface supporting the first bearing surface and the second bearing surface in a non-contact rotational relationship. The first bearing surface, or the second bearing surface, or both the first bearing surface and the second bearing surface include a surface layer with solid lubricant 2D nanoparticles in a matrix.

Lubricant compositions

A lubricant composition said composition comprising at least one base oil and from 1 to 70 wt % of at least one friction modifying additive, wherein the composition is such that the viscosity reversibly reduces at a pressure from 50 MPa to 3 GPa. A mechanical system comprising the lubricant composition; use of the lubricant composition and methods of reducing friction using the lubricant composition are also disclosed.

Grease Composition and Wheel Supporting Rolling Bearing Unit Having Grease Composition Packed Therein

There is provided a grease composition decreasing the load sensitivity to a running torque, maintaining necessary performances for a wheel supporting rolling bearing unit, and maintaining a good lubricated condition for a long time, and, a wheel supporting rolling bearing unit having the grease composition packed therein. The grease composition contains base oil, thickeners, rust inhibitors, and anti-wear agents, the base oil contains mineral oil, synthetic oil or blend oil of the mineral oil and the synthetic oil, a mix ratio (mass ratio) of the mineral oil and the synthetic oil is 0:100 to 20:80, a kinematic viscosity of the base oil at a temperature of 40° C. is 70 to 150 mm 2 /s, and a pour point of the base oil is equal to or lower than −40° C. The wheel supporting rolling bearing unit is packed with this grease composition.

Composite lubricating material, engine oil, grease, and lubricant

A composite lubricating material include at least a graphite-based carbon material and/or graphene-like graphite exfoliated from the graphite-based carbon material dispersed in a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3 R )= P 3/( P 3+ P 4)×100   Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.

Lubricating oil composition

The object of this invention is to offer a lubricating oil composition which has superior extreme pressure properties (ability to prevent welding), which generates a small amount of sludge and which also has a high viscosity index. The invention provides a lubricating oil composition to which has been added a copolymer of specified olefins and alkyl methacrylates.

Lubricant and srt material

The invention provides an SRT material (lubricant) applicable to machine elements such as bearings, seals or guides (guiding mechanisms) that constitute a slide part of a machine. A lubricant and an SRT material are disclosed.

Solid lubricant and sliding member having solid lubricant embedded therein

Provided are: a solid lubricant having a low friction coefficient and excellent abrasion resistance; and a sliding member having this solid lubricant embedded therein. The solid lubricant ( 4 ) has a sea-island structure, comprising: a sea phase as a continuous phase, containing a hydrocarbon-based wax and a polyethylene resin; and an island phase as a dispersion phase, containing a low-molecular weight tetrafluoroethylene resin, a higher fatty acid salt, a phosphate of basic nitrogen-containing compound, and zinc stannate. A high-molecular weight tetrafluoroethylene resin is contained in this continuous-phase sea phase in a fibrous and mesh state. The hydrocarbon-based wax content is 30-60 vol %, the polyethylene resin content is 3-10 vol %, the low-molecular weight tetrafluoroethylene resin content is 10-30% vol %, the higher fatty acid salt content is 20-40% vol %, the basic nitrogen-containing compound phosphate content is 0.5-5 vol %, the zinc stannate content is 0.5-5 vol %, and the high-molecular weight tetrafluoroethylene resin content is 1-10 vol %.

Grease composition

The grease composition of the present invention comprises at least one base oil selected from a mineral oil and a synthetic oil, and based on the total amount of the grease composition, 2 to 35% by mass of a thickener, 0.05 to 5% by mass of an epoxy compound and 0.1 to 20% by mass of an antiwear additive. The grease of the present invention is good in stability, lubricity and friction characteristics and excellent in long-term reliability even under severe use conditions as compared with conventional grease.

Sliding member and bearing device using the same

A sliding member of the present embodiment includes a bearing alloy layer and a coating layer provided on a sliding surface side thereof. The coating layer has a resin binder with sulfide particles dispersed therein. A covering portion is provided over specific particles and is made of metal oxide comprising the same metal element as a metal element constituting the sulfide particles. When measured by an X-ray photoelectron spectroscopy and an X-ray diffraction method, a ratio of a peak height of the metal oxide to a peak height of metal sulfide by the X-ray photoelectron spectroscopy is from 0.10 to 0.50, and a ratio of the peak height of the metal oxide to the peak height of the metal sulfide by the X-ray diffraction method is 0.10 or less.

Branched diesters and methods of making and using the same

The disclosure generally provides branched diester compounds having exceptional low-temperature and flow properties. The disclosure also provides uses of the branched diester compounds in lubricant compositions, for example, as a base oil, and in other applications where their low-temperature and flow properties can be employed beneficially. The disclosure also provides efficient and green methods for making the branched diester compounds. In certain embodiments, a vegetable oil-based diester (1,6-hexyldioleate) was branched with propanoic acid (C3) using a green synthetic approach involving solvent-free and catalyst-free epoxide ring opening followed by in situ normal esterification. A total of three branched ester derivatives possessing varied numbers of internal protruding branched ester groups and hydroxyl groups were obtained. All of the pure branched derivatives were comprised of mixtures of positional isomers and/or stereoisomers. Differential scanning calorimetry (DSC) showed that regardless of the composition inhomogeneity of each branched derivative, crystallization was suppressed completely in all of the branched compounds, and they all demonstrated glass transitions below −65° C. Without being bound by any theory, it is believed that this unique thermal behavior is attributed to the internal protruding branched moieties and hydroxyl groups, which dramatically slowed down mass transfer starting with the least branched compound (2-branched derivative). The viscosity of the branched compounds was one order of magnitude larger than that of the starting di ester due to the increased branching and increased resistance to flow associated with hydrogen bonding introduced by the OH groups. Overall, these branched diesters demonstrated superior low temperature and flow properties comparable to existing non-sustainable commercial lubricants and analogous biobased materials which makes them suitable alternatives for use in lubricant formulations particularly in high ...

Complex polyester composition, lubricant composition, lubricant, and production method for complex polyester composition

An object of the present invention is to provide a lubricant which has excellent lubrication performance and is able to exhibit excellent lubrication performance even when under extreme pressure conditions. The present invention relates to a complex polyester composition containing polyester obtained by condensing polyhydric alcohol having at least two hydroxyl groups, a dicarboxylic acid having 44 carbon atoms, and monohydric alcohol. Further, the present invention relates to a lubricant composition containing the complex polyester composition, and a lubricant and a production method for a complex polyester composition.

Lubricating oil composition and lubricating agent using same

An aspect of the present invention relates to a lubricant composition containing at least: (A) 50 to 80 mass % of silicone oil represented by formula (1) below, and having a mass-average molecular weight of 900 to 4000, a ratio (C/Si ratio) of carbon to silicon of 3.03 or higher in the structure, and a viscosity index (VI) of 300 or higher; (B) 10 to 49 mass % of hydrocarbon-based lubricant; and (C) 1 to 10 mass % of antioxidant.

METHOD FOR MANUFACTURING OIL GEL CAPSULES AND METHOD FOR MANUFACTURING CONTACT PART FOR VEHICLE, INCLUDING OIL GEL CAPSULES

The present disclosure relates to manufacturing oil gel capsules and adding the same to an overlay layer of a contact part for a vehicle. The present disclosure may provide a method for manufacturing oil gel capsules and a method for manufacturing a contact part for a vehicle, including the oil gel capsules. The oil gels in the oil gel capsules manufactured by the present disclosure may respond to the temperature environment of a contact part for a vehicle, and an aggregation phenomenon of gelators or an aggregation phenomenon of surfactants may not occur even after an oil is released. Therefore, as oil gel capsules are added to an overlay layer, the present disclosure may improve low friction characteristics and seizure resistance characteristics of a contact part for a vehicle without any side effects caused by the above-described aggregation phenomenon. 1. A method for manufacturing oil gel capsules , the method comprising:(a) manufacturing oil gels by mixing an oil and a gelator; and(b) producing at least one or more oil gel capsules by mixing the oil gels and an aqueous surfactant solution.2. The method of claim 1 , wherein the oil gel capsules are produced by surrounding the oil gel with a surfactant.3. The method of claim 1 , wherein the oil gels in step (b) are in a liquid state.4. The method of claim 1 , wherein the oil gel capsules have a size of 0.1 μm or more and less than 10 μm.5. The method of claim 1 , wherein the oil gel capsules have a size of 0.1 μm or more and 1 μm or less.6. The method of claim 1 , wherein in step (a) claim 1 , the oil and the gelator are mixed using an ultrasonic grinder.7. The method of claim 1 , wherein in step (b) claim 1 , the oil gel and the aqueous surfactant solution are mixed using an ultrasonic grinder.8. The method of claim 1 , wherein the oil is an engine oil.9. The method of claim 1 , wherein the gelator is 12-hydroxyoctadecanoic acid.10. The method of claim 1 , wherein the oil is an engine oil claim 1 , the gelator ...

Rolling bearing

A rolling bearing that can prevent peeling on a surface of an iron-based metal member by hydrogen brittleness even under a severe environment is provided. The rolling bearing 1 has plural bearing elements formed of an iron-based metal, and a lubricant composition 7 that lubricates metal contact surfaces of the respective bearing elements, the lubricant composition 7 is a grease containing a base oil and alkanolamine and being free of alkali metal salts and alkaline earth metal salts of inorganic acids, the base oil is at least one oil selected from alkyl diphenyl ether oils, poly-α-olefin oils and ester oils, and the alkanolamine is contained by 0.1 to 10 parts by weight with respect to 100 parts by weight of the total amount of the base oil and a thickener.

Water-soluble lubricant oil

The present invention provides a water-soluble lubricating oil including a water-soluble base (A) and a corrosion inhibitor (B). The water-soluble base (A) contains at least one polyether (A1). A 0.1% by weight aqueous solution of the water-soluble lubricating oil has a surface tension of 31 mN/m or higher.

Natural oil derivative based thickener components used in grease compositions and processes for making such compositions

A grease composition is disclosed, having from 50 to 99 weight percent of a lubricating base oil, from 1 to 30 weight percent of a thickener component including one or more of (i) one or more natural oil derivatives selected from the group consisting of triglycerides, diglycerides, monoglycerides, or oligomers therefrom, fatty acid methyl esters and corresponding fatty acids, salts, and dibasic esters therefrom, and C 10- C 15 esters, C 15- C 18 esters, or C + diesters, or diesters therefrom, (ii) one or more carboxylic acids and/or derivatives thereof, and (iii) one or more of a metal base compound, and from 1 to 15 weight percent of one or more optional additives. Processes for making grease compositions are also disclosed.

Grease for rolling bearing, rolling bearing, rolling bearing device, and information recording and reproducing apparatus

Provided is grease for a rolling bearing of an information recording and reproducing apparatus 1, containing a base oil, a thickener, and at least one kind of an antioxidant selected from an amine-based antioxidant (A) expressed by the General Formula (1), and a phenol-based antioxidant (B) expressed by the General Formula (2).

LUBRICATING OIL COMPOSITION AND IMPREGNATED BEARING

Provided are a lubricating oil composition which contains a base oil (A) containing an ester-based oil (Al), and a polymer (B) having a constituent unit (b) derived from an alkyl (meth)acrylate, wherein the content of the polymer (B) is 0.1 to 10% by mass based on the total amount of the lubricating oil composition, the lubricating oil composition has a viscosity index of 350 or more, the lubricating oil composition has a BF viscosity at −40° C. of 4000mPa·s or less, and the lubricating oil composition is used for an impregnated bearing, and an impregnated bearing impregnated with the lubricating oil composition. The lubricating oil composition has excellent lubricity in use in a wide temperature environment from a low temperature region to a high temperature region, is capable of maintaining excellent infiltration property even in an environment in which a temperature change between a low temperature and a high temperature is severe, and is suitable for use in an impregnated bearing. 1. A lubricating oil composition ,. comprising: a base oil comprising an ester-based oil; and a polymer having a constituent unit (b) derived from an alkyl (meth)acrylate ,wherein:the content of the polymer is 0.1 to 10.0% by mass based on the total amount of the lubricating oil composition,the lubricating oil composition has a viscosity index of 350 or more,the lubricating oil composition has a BF viscosity at −40° C. of 4000 mPa·s or less, andthe lubricating oil composition is used for an impregnated bearing.2. The lubricating oil composition of claim 1 , wherein the polymer has a weight average molecular weight of 350 claim 1 ,000 or more.3. The lubricating oil composition of claim 1 , wherein the polymer has a molecular weight distribution (Mw/Mn) (Mw:weight average molecular weight of the polymer, Mn: number average molecular weight of the polymer of 2.2 or less.4. The lubricating oil composition of claim 1 , wherein the constituent unit is derived from methyl (meth)acrylate claim ...

Lubricating oil composition for rolling with round die

Provided is a lubricating oil composition for round die rolling, which is obtained by blending a base oil with: (A) 0.5 to 40 mass % of a monoester having 13 to 48 carbon atoms (a-1) and/or 0.5 to 30 mass % of a fatty dicarboxylate having 13 to 34 carbon atoms (a-2) ; (B) 0.01 to 10 mass % of a thiadiazole compound; (C) 0.01 to 15 mass % of a thiophosphite; and (D) 0.01 to 5 mass % of a triazole compound. The lubricating oil composition for round die rolling shows excellent processing performance without using any chlorine-based compound, and is able to improve lubricity in a bearing to lengthen the life of the bearing.

Lubricant Composition

A lubricant composition includes a base oil and melamine cyanurate. The base oil includes a perfluoropolyether oil having a straight chain structure. The lubricant composition is for one of a resin-resin sliding section and a resin-metal sliding section. A melamine cyanurate content is within a range of 1-20% by mass with respect to a sum of the base oil and melamine cyanurate.

Lubricating grease composition

The present invention relates to lubricating grease compositions comprising (a) at least one high-viscosity fluorinated oil having a viscosity of 500 to 1500 mm2/s, (b) boron nitride and (c) a binder selected from bentonite, alkali metal phosphates, aluminum phosphates, alkali metal silicates, alkaline earth metal silicates, aluminum silicates, alkaline earth metal carbonates, calcium borate, silicon dioxide, titanium dioxide, aluminum oxide and mixtures thereof. The lubricating grease compositions find use especially in the high-temperature sector, for example for the lubrication of oven pullout rails.

CHARGE CONTROL AGENT FOR FLUID DYNAMIC BEARING MOTOR LUBRICANT

Embodiments disclosed herein generally relate to magnetic recording systems having a spindle motor and, more particularly, to an optimized lubricant for bearings within the spindle motor. A lubricant used in a fluid dynamic bearing motor has an antioxidant additive and a charge control agent dissolved in a diester base oil. The charge control agent is chemically attached to the same diacid reactant used in the diester lubricant base oil, and is prepared through an esterification reaction. The charge control agent is then dissolved in the lubricant base oil. The charge control agent is soluble in the lubricant, and is resistant to free radical oxidation. The charge control agent effectively controls the charge of the lubricant by creating electron donor/acceptor sites in the lubricant, facilitating an independent electronic pathway through the lubricant. 1. A solution , comprising:a lubricant that includes a first acid reactant;a soluble charge control agent including a second acid reactant; andan antioxidant additive, wherein the first acid reactant and the second acid reactant are the same.2. The solution of claim 1 , wherein the first and second acid reactants are sebacic acid.3. The solution of claim 2 , wherein the soluble charge control agent is chemically attached to the lubricant through an esterification reaction.4. The solution of claim 3 , wherein the soluble charge control agent is dibenzyl sebacate.5. The solution of claim 4 , wherein one reactant used in the esterification reaction is benzyl alcohol.6. The solution of claim 3 , wherein the soluble charge control agent is dinaphthyl sebacate.7. The solution of claim 6 , wherein one reactant used in the esterification reaction is naphthyl alcohol.8. The solution of claim 3 , wherein one reactant used in the esterification reaction is anthracene methanol.9. The solution of claim 3 , wherein one reactant used in the esterification reaction is pyrene methanol.10. The solution of claim 1 , wherein the soluble ...

LUBRICANT COMPOSITION AND ROLLING BEARING HAVING SAME SEALED THEREIN

The rolling bearing of the present invention is lubricated with a lubricant composition which contains a fatty acid metal salt, a metal dithiocarbamate, a phosphorous-type additive, and a basic additive, and which has a total acid value of 3.7 mgKOH/g or more. The rolling bearing makes it possible to further improve anti-fretting performance, and to reduce a decrease in fretting resistance even when used under the circumstance that fluorine-type grease penetrates into the bearing using urea-type grease. 1. A urea-type grease composition , comprising:a fatty acid metal salt;a metal dithiocarbamate;a phosphate ester;a basic additive as an additive; anda base oil in which a urea compound is blended as a thickener,wherein a total acid value is 3.7 mgKOH/g or more.2. The urea-type grease composition according to claim 1 ,wherein pH is 8.6 or more.3. A rolling bearing lubricated by the urea-type grease composition according to .4. The urea-type grease composition according to claim 1 ,wherein the fatty acid metal salt is at least one selected from the group consisting of copper stearate, iron stearate, zinc stearate and magnesium stearate.5. The urea-type grease composition according to claim 1 ,wherein the content of the phosphate ester is 2 mass % or more relative to the total amount of the grease composition.6. A urea-type grease composition claim 1 , comprising:a fatty acid metal salt;a metal dithiocarbamate;a phosphorus-type additive;a basic additive as an additive; anda base oil in which a urea compound is blended as a thickener,wherein the fatty acid metal salt is a mixture of copper stearate, iron stearate, zinc stearate, magnesium stearate, andwherein a total acid value is 3.7 mgKOH/g or more.7. The urea-type grease composition according to claim 6 ,wherein the content of the phosphorus-type additive is 2 mass % or more relative to the total amount of the grease composition.8. The urea-type grease composition according to claim 6 ,wherein pH is 8.6 or more.9. The ...

LUBRICANT COMPOSITION

A lubricant composition according to the present invention contains a fatty acid metal salt, a metal dithiocarbamate, and an additive having an effect of increasing an acid value of the lubricant composition, whereby fretting resistance performances are further improved. 1. A lubricant composition , comprising:a fatty acid metal salt;a metal dithiocarbamate; andan acid value improver having an effect of increasing an acid value of the lubricant composition, wherein when a ratio of a content of the fatty acid metal salt (mass %)/content of the metal dithiocarbamate (mass %)] is defined as X, anda ratio of a content of the fatty acid metal salt (mass %)/total acid value of the lubricant composition (mgKOH/g) is defined as Y, {'br': None, 'i': Y≤', 'X', 'X+, 'sup': '2', '0.1547−0.13880.07 \u2003\u2003(A).'}, 'X is 0.38 to 1.35, Y is 0.027 or more, and the following relationship (A) is satisfied,'}2. (canceled)3. The lubricant composition according to claim 1 , wherein the content of the acid value improver is 1 mass % or more.4. The lubricant composition according to claim 1 , wherein the total acid value based on JIS K 2501:2003 is 3.7 (mgKOH/g) or more.5. The lubricant composition according to claim 1 , wherein the acid value improver is at least one selected from the group consisting of phosphate esters and phosphite esters.6. The lubricant composition according to claim 1 , wherein the fatty acid metal salt is at least one selected from the group consisting of copper stearate claim 1 , iron stearate claim 1 , zinc stearate and magnesium stearate.7. The lubricant composition according to claim 1 , which is a grease composition comprising a lubricant oil composition claim 1 , or claim 1 , a base oil and a thickener.8. The lubricant composition according to claim 7 , which is a urea-type grease. The present invention relates to a lubricant composition containing a particular additive and particularly, to a lubricant composition suitable for a rolling bearing.When a ...

Anti-degradation and self-healing lubricating oil

A lubricating oil comprises a base oil; and an anti-degradation additive comprising microcapsules, nanocapsules, or a combination comprising at least one of the foregoing; the microcapsules and the nanocapsules each independently having a core of a neutralizing material and a polymeric encapsulant configured to release the neutralizing material in an acidic environment by breaking crosslinks or hydrogen bonds in the polymeric encapsulant. The released neutralizing material can prevent the formation of viscous, high molecular weight molecules thus enhancing the lifetime of the lubricating oil and improving its reliability.

GREASE FOR ROLLING BEARING OF INFORMATION RECORDING AND REPRODUCING APPARATUS, ROLLING BEARING, ROLLING BEARING DEVICE, AND INFORMATION RECORDING AND REPRODUCING APPARATUS

Grease for a rolling bearing of an information recording and reproducing apparatus contains a base oil and a thickener, wherein the film thickness of an elasto-hydrodynamic lubrication film is 20 nm or greater. Grease for a rolling bearing of an information recording and reproducing apparatus contains a base oil, and a thickener, wherein a width of the thickener in the grease is 20 nm or greater. A rolling bearing includes the grease for a rolling bearing. A rolling bearing device includes a shaft and the rolling bearing. An information recording and reproducing apparatus includes the rolling bearing device 1. Grease for a rolling bearing of an information recording and reproducing apparatus , comprising:a base oil; anda thickener,{'sub': 'C', 'wherein the film thickness (h) of an elasto-hydrodynamic lubrication film, which is measured by the following measurement method, is 20 nm or greater.'}{'sub': 'C', ''}A steel ball is brought into rolling-contact with a surface of a glass disc to which grease is applied, and the film thickness of a contact region is obtained by a dichromatic interference method.As the glass disc, a glass disc, in which chromium is deposited on a single surface and which has a diameter of 115 mm, a thickness of 16 mm, and a vertical elastic coefficient of 75 GPa, is used. As the steel ball, a steel ball for a bearing, which has a diameter of 19.05 mm, and a vertical elastic coefficient of 206 GPa, is used.{'sub': 'C', 'Grease is applied to a surface of the glass disc on which chromium is deposited. The glass disc and the steel ball are brought into contact with each other under pure rolling conditions of a contact load of 150 N and a maximum hertz pressure of 1.04 GPa. A peripheral velocity of the glass disc is set to 1 mm/s, and ten interference images are obtained for one rotation after initiating an operation of the glass disc. The film thickness at the center ...

Mixed grease

Provided is a mixed grease containing a grease (A) prepared from a base oil (a1) and a thickening agent (a2) that is a lithium soap consisting of a lithium salt of a monovalent fatty acid, and a grease (B) prepared from a base oil (b1) and a thickening agent (b2) that is a lithium complex soap consisting of a lithium salt of a monovalent fatty acid and a lithium salt of a divalent fatty acid. The mixed grease has good wear resistance and load bearing properties and has excellent grease leakage preventing properties.

Grease composition, method for manufacturing grease composition, and method for using grease composition

Provided is a grease composition which is excellent in fire extinguishing performance without water and can suppress fuming, malodor, and liquefaction on burning and a method for producing the grease composition. A grease composition contains a base oil (A), a thickener (B), and a fire retardant (C), wherein the base oil (A) contains a base oil (A1) having a 40° C. kinematic viscosity of 300 mm 2 /s or more, a sulfur content of 20 ppm by mass or less, and an initial boiling point of 400° C. or higher, the fire retardant (C) is at least one of aluminum hydroxide (C1) and 1,3,5-triazine-1,3,5 (2H, 4H, 6H)-tris(ethanol) (C2), and a content of the fire retardant (C) is 1.0 to 12.0 mass % based on a total amount of the grease composition.

Lubricant, friction pair having the lubricant and method for controlling friction coefficient between the friction pair

A lubricant, a friction pair having the lubricant and a method for controlling COF between the friction pair are provided. The friction pair includes a first friction part ( 1 ) and a second friction part ( 2 ). Firstly a lubricant ( 4 ) is provided between the first and second friction parts ( 1, 2 ). Then a potential is applied on the first friction part ( 1 ) via the lubricant ( 4 ). And COF is controlled by controlling the potential. The lubricant ( 4 ) contains propylene carbonate and a surfactant.

Grease compositions

The invention relates to a grease composition having a base oil and a thickener that includes hydrophilic metal oxide particles and one or more esters which contain one or more unsaturated C—C bonds and/or at least one OH group. The hydrophilic metal oxide particles have a BET specific surface area of at least 10 m 2 /g and at least 80% of the hydrophilic metal oxide particles have a particle size in the range of from 5 nm to 900 μm. The amount of the thickener is in the range of from 0.1-40% by weight, based on the total weight of the grease composition. The invention further relates to methods for manufacturing the grease compositions, and the use of the grease compositions for lubricating bearings, gears and couplings.

Lubricating Oil Composition

The invention provides a lubricant composition containing an oil of lubricating viscosity and a boron-containing en.) compound, wherein the boron containing compound comprises a borate ester comprising at least one alkyl group having a branch at the ? position or higher. The invention further relates to a method of lubricating an internal combustion engine with the lubricant composition.

Metal/Plastic slide bearing composite material and slide bearing element produced therefrom

A metal/plastic slide bearing composite material ( 2 ) has a metallic support layer ( 4 ), especially of steel, and a porous carrier layer ( 6 ), especially a carrier layer ( 6 ) applied by sintering from metallic particles ( 7 ). A polymer-based slide layer material ( 8 ) completely fills the pores of the carrier layer ( 6 ) and has fillers that improve the tribological properties. The polymer basis is PTFE. The sliding layer material ( 8 ) has 0.1-5% by mass of carbon nanotubes with an external tube diameter of <80 nm and a tube length of <20 μm.

Rolling Bearing, Rotating Machine Element, and Solid-Film Formation Method

A method is provided that forms a solid film on a bearing component of a rolling bearing. A solution containing a fluorine compound and a lubricant having no functional group is allowed to adhere to the bearing component as a first liquid film (adhesion step). The adhering first liquid film is hardened to form the solid film on the bearing component. The rolling bearing including the bearing component with the solid film formed thereon is rotated. The rolling bearing is washed in a washer fluid containing the same lubricant as that used in the adhesion step, and the washer fluid is allowed to adhere to the bearing component as a second liquid film. Then, the adhering second liquid film is dried.

Grease compositions

The invention relates to a grease composition including a base oil and a thickener that provides hydrophilic metal oxide particles and one or more amides which contain one or more unsaturated C—C bonds and/or at least one OH group. The hydrophilic metal oxide particles have a BET specific surface area of at least 10 m2/g and at least 80% of the hydrophilic metal oxide particles have a particle size in the range of from 5 nm to 900 μm. The amount of the thickener is in the range of from 0.1-40% by weight, based on the total weight of the grease composition. The invention further relates to methods for manufacturing the grease composition, and the use of the grease composition for lubricating bearings, gears and couplings.

Composition for low temperature

Lubricant composition comprising a dicarboxylic acid ester component which is formed from a dicarboxylic acid selected from the list consisting of adipic acid, phthalic acid, pimilic acid, suberic acid, azelaic acid and sebacic acid, and mixtures thereof and a branched aliphatic alcohol R—OH which is defined according to the following formula (I) whereas q, r and s are defined as follows, q+r=4 to 9, s=0 to 5, q=1 to 8, and r=1 to 6, and an ethylene-propylene copolymer.

Lubricating oil composition

A lubricating oil composition with enhanced deposit control capability is disclosed for engines operating under sustained high load conditions, such as natural gas engines and low-speed or medium-speed diesel engines. The composition comprises (a) a first base oil component selected from a Group I base stock, a Group II base stock, a Group III base stock, or a combination thereof, each having a kinematic viscosity at 100° C. of from 8.5 to 15 mm2/s; and (b) a second base oil component selected from a Group I base stock, a Group II base stock, a Group III base stock, or a combination thereof, each having a kinematic viscosity at 100° C. of from 4.0 to less than 8.5 mm2/s; wherein the weight ratio of the first base oil component to the second base oil component is in a range of from 1:10 to 1:1.15.

Process for producing a composite material for plain bearings with a plastic sliding layer and a paste suitable for this

润滑脂组合物及其制造方法

本发明提供高温下的油膜形成性和低温下的低转矩性均衡性良好地极优异、而且耐热氧化稳定性也优异的润滑脂组合物。润滑脂组合物，其含有10～98质量％的润滑油基础油(A)、89～1质量％的乙烯与α‑烯烃的液态无规共聚物(B)、及1～30质量％的增稠剂(C)(将(A)～(C)的总量作为100质量％。)，所述润滑油基础油(A)的100℃运动粘度为1～14mm 2 /s、粘度指数为100以上、倾点为0℃以下，所述乙烯与α‑烯烃的液态无规共聚物(B)是使用特定的催化剂制造的，润滑油基础油(A)及共聚物(B)以润滑油基础油(A)与乙烯‑α‑烯烃共聚物(B)的混合物的100℃时的运动粘度成为1～500mm 2 /s、并且粘度指数为120以上的比例进行配合。

Lubricants from mixed alpha-olefin feeds

This invention discloses an improved process which employs mixed alpha-olefms as feed over activated metallocene catalyst systems to provide essentially random liquid polymers particularly useful in lubricant components or as functional fluids.

Production of liquid polyolefins

A method for preparing a liquid polyolefin includes contacting a feedstock comprising at least one olefin monomer with a catalyst system to produce a reactor effluent stream, filtering the reactor effluent stream, washing a created filter cake with a wash fluid comprising at least one hydrocarbon liquid; and recovering the liquid polyolefin. The catalyst system may be any conventional polyolefin catalyst system, and in a preferred embodiment, the catalyst system contains at least one activated metallocene catalyst. The reactor effluent stream comprises at least one liquid polyolefin, residual catalyst, and unreacted olefin monomer.

Lubricants from mixed alpha-olefin feeds

This invention discloses an improved process which employs mixed alpha-olefms as feed over activated metallocene catalyst systems to provide essentially random liquid polymers particularly useful in lubricant components or as functional fluids.

Conductive lubricant for magnetic disk drives

An improved disk drive system using a non-ferrofluid conductive lubricant is disclosed. In the disk drive system, there is a plurality of critically spaced magnetic disks rotated by a disk motor. A spindle shaft, which is retained by the spindle sleeve, couples to the disk motor and to the plurality of magnetic disks for rotation. The spindle shaft and spindle sleeve uses a bearing, which is lubricated by a non-ferrofluid conductive lubricant. The lubricant is used to prevent electrostatic charge build up during operation of the disk drive system. The lubricant may be either a non-polar oil or a ball bearing grease and further comprising either a metal caged fullerenes compound, STADIS-450, ASA-3, or Polyfloe 130. One particular type of lubricant is an emeraldine salt of polyanilin produced according to the steps of first reacting a solution of HCL and ammonium persulfate into a solution of HCL and analine to form a polymer. Next, the polymer is mixed with ammonium hydroxide and then is prepared to have a molecular weight of 1,000-20,000. Finally, the polymer is mixed with dodecyl benzylsulfonc acid or camphor sulfonic acid until the emeraldine salt is formed.

Lubricants from mixed alpha-olefin feeds

Corrosion-inhibited grease compositions

Described are lubricating greases corrosion inhibited by a synergistic amount of a mixture of sodium nitrite and N-acyl sarcosines. The greases contain from 75 to 96 parts by weight, preferably 80 to 95 parts by weight of a mineral oil having a SUS viscosity of 50 to 2500 at 100° F thickened to grease consistency with about 3 to 25, preferably 5 to 20, parts by weight of an alkali metal or alkaline earth metal soap or a mixture thereof.

High solids content dispersions

HIGH SOLIDS CONTENT DISPERSIONS The present invention provides a dispersion composition containing (a) a metal base selected from the group consisting of: (i) a metal hydroxide with a solids content of greater than about 51 wt % of the composition; (ii) a metal base other than a metal hydroxide with a solids content of greater than about 15 wt % of the composition; and (iii) mixtures thereof; (b) a surfactant; and (c) an organic medium containing less than about 2 wt % of water. The invention further provides a process for preparing the composition and a method for its use.

Fluorinated lubricant composition and its use

Fluorbasierte Schmiermittelzusammensetzung, umfassend ein Basisöl und eine fluorhaltige Verbindung, dargestellt durch die allgemeine Formel CF3(CF2)nO(CF2O)p(C2F4O)q(C3F6O)rRfCONHAr[I]worin Ar eine 2-Benzimidazolgruppe ist, Rf eine Fluorkohlenstoffgruppe der Kohlenstoffanzahl 1 oder 2 ist, n 0, 1 oder 2 ist, p, q und r eine ganze Zahl sind, die der Bedingung p + q + r ≰ 100 genügen, wobei eine oder zwei aus p, q und r 0 sein kann bzw. können, und die CF2O-Gruppe, die CF2O4-Gruppe und die C3F6O-Gruppe zufällig in der Hauptkette gebundene Gruppen sind, als Additiv, enthalten im Basisöl. A fluorine-based lubricant composition comprising a base oil and a fluorine-containing compound represented by the general formula CF3 (CF2) nO (CF2O) p (C2F4O) q (C3F6O) rRfCONHAr [I] wherein Ar is a 2-benzimidazole group, Rf is a fluorocarbon group of carbon number 1 or 2, n is 0, 1 or 2, p, q and r are an integer satisfying the condition p + q + r ≰ 100, where one or two may be p, q and r 0 and the CF2O group, the CF2O4 group and the C3F6O group are randomly bonded in the main chain as an additive contained in the base oil.

Solvent-free polyamideimide lubricant on water basis

Die Erfindung betriff einen von organischen Lösungsmitteln freien Polyamidimid-(PAI)-Gleitlack, nachfolgend als lösungsmittelfreier PAI-Gleitlack bezeichnet, auf Wasserbasis und dessen Verwendung für die Beschichtung von metallischen Oberflächen. The invention relates to a non-organic solvent polyamide imide (PAI) slipcoat, hereinafter referred to as solvent-free PAI bonded coating, based on water and its use for the coating of metallic surfaces.

Nu-oxyalkylated-aminediphenyl-oxo-and amino-compounds

Improvements in or relating to lubricating compositions and additives therefor

The invention comprises an additive for lubricating oils (see Group III), said additive being a compound obtained by the sulphurization or sulphurization and phosphorization of the unsaponifiable matter extracted from saponified wool grease, or a metal salt of such a sulphurized and phosphorized compound. The unsaponifiable matter may be sulphurized by heating with sulphur and the reaction may be assisted by adding a small amount of sulphur monochloride or sulphur dichloride. The sulphurized product may then be phosphorized by reacting it with a phosphorus compound, e.g. a phosphorus sulphide or halide and particularly phosphorus pentasulphide or sesquisulphide, e.g. by heating with either of the latter at 220 DEG to 250 DEG F. Alternatively, the unsaponifiable matter may be reacted with sulphur chlorides in oil or an inert solvent and the chlorine then replaced by sulphur, or phosphorus and sulphur, by reacting the product in a suitable solvent with sodium sulphide or polysulphide or the sodium salt of an organic dithiophosphoric acid. The sulphurization of the unsaponifiable material may be carried out in the presence of a vulcanization accelerator, e.g. mercaptobenzothiazole, benzothiazole disulphide, tetramethyl and tetraethyl thiuram disulphides or mixtures of these compounds with diphenyl guanidine. It is preferred to carry out the sulphurization in the presence of an aliphatic, alicyclic, or reduced heterocyclic secondary amine such as dicyclohexylamine, diethanolamine, or morpholine and the sulphurization is facilitated by carrying it out in the presence of mineral oil. The products may be freed from oil-insoluble impurities by dissolving in a suitable solvent such as petroleum ether, filtering, and then removing the solvent by distillation. Alternatively, the phosphorized - sulphurized reaction products may be heated in oil solution with a minor amount of an aqueous suspension of lime or baryta and then filtered with the addition of filter-aid material. The ...

Sulfurization of triisobutylene and products resulting therefrom

A process for the sulfurization of triisobutylene and resulting products comprising contacting triisobutylene with sulfur under essentially atmospheric conditions at a temperature between about 360* and 500*F., utilizing a mole ratio of triisobutylene to sulfur of between about 1:4 and 1:2.5 while blowing the reaction mixture during at least a part of said contacting with an inert gas and recovering a sulfurized triisobutylene product containing as a major component a compound of the empirical formula C12H20S3 having substantially reduced corrosive activity to copper coupled with superior EP (extreme pressure) improving properties when incorporated in hydrocarbon lubricating oils such as gear oils and cutting oils.

Process for sulfurizing norbornenyl compounds

Norbornenyl compounds such as dicyclopentadiene are sulfurized by reaction with a controlled amount of sulfur in the absence of a solvent or using a non-polar solvent to give a normally liquid oil-soluble sulfur-containing compound useful as a lubricating oil additive.

Sulfurized compositions

Sulfurized compositions are prepared by the reaction of unsaturated compounds and a mixture of sulfur and hydrogen sulfide under superatmospheric pressure and in the presence of a catalyst, followed by removal of low boiling materials. They are useful as lubricant additives.

Olefin polysulfide compositions of high sulfur content and very low chlorine content, their manufacture and use as additives for lubricants

Olefin polysulfide compositions of high sulfur content and of very low chlorine content are obtained by a process comprising the steps of: (1) reacting sulfur mono- and/or dichloride with at least one aliphatic monoolefin of 2-12 carbon atoms, to form an addition product or "adduct", (2) reacting hydrogen sulfide with an alkali hydroxide or ammonium hydroxide dissolved in at least one substantially anhydrous C 1 -C 4 aliphatic monoalcohol, with optional addition of elemental sulfur, (3) contacting said "adduct" together with at least one monohalogenated hydrocarbon compound, with the alcoholic solution obtained at the end of step (2), (4) heating the resultant mixture from step (3), removing the monoalcohol, while adding water, and (5) after settling and removal of the aqueous phase, recovering the organic phase formed at least in major part of the desired olefin polysulfide composition. These compositions, of sulfur content up to 65% by weight and of chlorine content generally lower than about 0.1% by weight, are used in particular as additives for improving the extreme-pressure properties of lubricants.

POLYSULFURATED OLEFIN COMPOSITIONS, THEIR PREPARATION AND THEIR USE AS LUBRICANT ADDITIVES

Sulfurized olefin extreme pressure/antiwear additives and compositions thereof

Reaction products of sulfur, olefins and sodium sulfide hydrates are improved extreme-pressure/antiwear additives for lubricants and liquid hydrocarbyl fuels.

Process for sulfurized olefinic product

A process for preparing, in high yield, a sulfurized olefinic product for use in lubricating oil compositions having a low chlorine content, a sulfur content of from about 40 to about 50 weight percent and a viscosity at 100° C. of less than about 20 cSt.

Ethylene alpha-olefin polymer substituted mono-and dicarboxylic acid dispersant additives

The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful fuel and lubricating oil additives, e.g., as dispersants.

Ethylene alpha-olefin copolymer substituted Mannich base lubricant dispsersant additives

The present invention is directed to oil-soluble lubricating oil additives comprising Mannich Base condensates of an alkyl substituted hydroxy aromatic compound with formaldehyde and an amine, wherein the alkyl-moiety of the aromatic compounds is derived from at least one ethylene alpha-olefin copolymer of 300 to 20,000 number average molecular weight, wherein at least about 30% of the polymer's chains contain terminal ethenylidene unsaturation. The Mannich Base condensates of this invention are useful as dispersants.

Novel ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives

The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful fuel and lubricating oil additives, e.g., as dispersants.

Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives (PT-920)

The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful fuel and lubricating oil additives, e.g., as dispersants.

Borated ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives

The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful fuel and lubricating oil additives, e.g., as dispersants.

Ethylene α-olefin/diene interpolymer-substituted carboxylic acid dispersant additives

The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene/alpha-olefin/diene interpolymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted interpolymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such s amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful lubricating oil additives, e.g., as dispersants.

Derivatized ethylene alpha-olefin polymer useful as multifunctional viscosity index improver additive for oleaginous composition

The present invention is directed to an oil-soluble oleaginous composition additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of from above 20,000 to about 500,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to oleaginous compositions such as lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful oleaginous composition additives, e.g., as multifunctional viscosity index improvers.

Ethylene alpha-olefin polymer substituted amine dispersant additives

The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight terminally substituted with amine compounds, which are also useful additives to oleaginous compositions, e.g., as fuel and lubricating oil dispersants.

Ethylene alpha-olefin polymer substituted mannich base useful as multifunctional viscosity index improver for oleaginous composition

The present invention is directed to oil-soluble lubricating oil additives comprising Mannich Base condensates of an alkyl substituted hydroxy aromatic compound with formaldehyde and an amine, wherein the alkyl-moiety of the aromatic compounds is derived from at least one ethylene alpha-olefin copolymer of greater or above 20,000 to about 500,000 number average molecular weight, wherein at least about 30% of the polymer's chains contain terminal ethenylidene unsaturation. The Mannich Base condensates of this invention are useful as multifunctional viscosity index improvers for oleaginous compositions, particularly lubricating oil compositions.

Gel-free alpha-olefin dispersant additives useful in oleaginous compositions

Gel-free dispersant additives for lubricating and fuel oil compositions comprise at least one adduct of (A) .alpha.-olefin homopolymer or interpolymer of 700 to 10,000 number average molecular weight, free radically grafted with an average of from about 0.5 to about 5 carboxylic acid producing moieties per polymer chain, and (B) at least one non-aromatic nucleophilic post-treating reactant selected from (i) amine compounds containing only a single reactive amino group per molecule, (ii) alcohol compounds containing only a single hydroxy group per molecule, (iii) polyamine compounds containing at least two reactive amino groups per molecule, (iv) polyol compounds containing at least two reactive hydroxy groups per molecule, (v) aminoalcohol compounds containing at least one reactive amino group and at least one reactive hydroxy group per molecule, and (vi) mixtures of (i) to (v): provided that when said post-treating reactant includes one or more of (iii), (iv) or (v), the reaction between (A) and (B) is conducted in the presence of sufficient chain-stopping or end-capping co-reactant (C) to ensure that the grafted and post-reacted product mixture is gel-free.

Gel-free ethylene interpolymer dispersant additives useful in oleaginous compositions

Gel-free dispersant additives for lubricating and fuel oil compositions comprise at least one adduct of (A) .alpha.-olefin homopolymer or interpolymer of 700 to 10,000 number average molecular weight, free radically grafted with an average of from about 0.5 to about 5 carboxylic acid producing moieties per polymer chain, and (B) at least one non-aromatic nucleophilic post-treating reactant selected from (i) amine compounds containing only a single reactive amino group per molecule, (ii) alcohol compounds containing only a single hydroxy group per molecule, (iii) polyamine compounds containing at least two reactive amino groups per molecule, (iv) polyol compounds containing at least two reactive hydroxy groups per molecule, (v) aminoalcohol compounds containing at least one reactive amino group and at least one reactive hydroxy group per molecule, and (vi) mixtures of (i) to (v); provided that when said post-treating reactant includes one or more of (iii), (iv) or (v), the reaction between (A) and (B) is conducted in the presence of sufficient chain-stopping or end-capping co-reactant (C) to ensure that the grafted and post-reacted product mixture is gel-free.

Lubricating composition

A lubricating composition is provided containing: a high viscosity synthetic hydrocarbon such as high viscosity polyalphaolefins, liquid hydrogenated polyisoprenes or ethylene-alphaolefin copolymers having a viscosity of 40-1000 centistokes at 100° C.; a low viscosity synthetic hydrocarbon and/or optionally a low viscosity ester; and optionally an additive package to impart desirable performance properties to the composition.

High functionality low molecular weight oil soluble dispersant additives useful in oleaginous composition

Hydrocarbyl substituted C 4 to C 10 monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C 2 to C 10 monoolefin, preferably polyisobutylene, having a number arrange molecular weight of about 700 to 1200, preferably with a C 4 to C 10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 1.2 to 2.0 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting materials may be further reacted with amines, alcohols, amino alcohols, boric acid, etc. to form dispersants.

Low-temperature lubrication grease and rolling bearings

Viscosity index improver

Degraded molecular weight copolymers of ethylene alpha-olefin are provided. The ethylene alpha-olefin copolymers, before degradation, are characterized by having a narrow molecular weight distribution and are comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains. The degraded copolymers are useful as viscosity index improvers for oils.

Continuous process for production of functionalized olefins

A continuous process for functionalizing olefins, especially polymer olefins in a CSTR or pipe reactor. Esters are preferably produced by continuous reaction of the olefin with carbon monoxide and a nucleophilic trapping agent. The liquid-filled pipe reactor operates in plug flow with static mixers and the CSTR is operated in the substantial absence of air at constant liquid level.

Functionalization of polymers based on Koch chemistry and derivatives thereof

A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least ethylenic double bond per polymer chain, with carbon monoxide and a nucleophilic trapping agent. The invention includes functionalized polymer, derivatives thereof and methods of making the same.

Viscosity index improver

Degraded molecular weight copolymers of ethylene alpha-olefin are provided. The ethylene alpha-olefin copolymers, before degradation, are characterized by having a narrow molecular weight distribution and are comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains. The degraded copolymers are useful as viscosity index improvers for oils.

Lubricating grease

A heavy-duty lubricating grease is shown which includes a synthetic fluid base and a thickener system. The heavy-duty grease can be used in both rolling element and journal type rock bit bearings to drill in heavy-duty, high temperature applications, such as in the bearing structures of rock bits used to drill hot subterranean formations.

Lubricating composition

ABSTRACT A lubricating composition is provided containing: a high viscosity synthetic hydrocarbon such as a high viscosity polyalphaolefin, a liquid hydrogenated polyisoprene or an ethylene-alphaolefin copolymer having a viscosity of 40-1000 centistopes at 100°C; a low viscosity synthetic hydrocarbon and/or optionally a low viscosity ester; and optionally an additive package to impart desirable performance properties to the composition.

Ethylene alpha-olefin polymer substituted mono-and dicarboxylic acid lubricant dispersant additives

The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 10,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful lubricating oil additives, e.g., as dispersants.

Ethylene alpha-olefin/diene interpolymer-substituted carboxylic acid dispersant additives

The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene/alpha-olefin/diene interpolymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted interpolymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful lubricating oil additives, e.g., as dispersants.

Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives

The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful fuel and lubricating oil additives, e.g., as dispersants.