КОМПОЗИЦИЯ КОНСИСТЕНТНОЙ СМАЗКИ С ПОВЫШЕННЫМИ АНТИКОРРОЗИОННЫМИ СВОЙСТВАМИ И СОПРОТИВЛЕНИЕМ ИЗНОСУ, СПОСОБ ПОЛУЧЕНИЯ СМАЗКИ

Изобретение относится к области смазочных материалов. Сущность: консистентная смазка, содержащая масляную основу и загуститель, дополнительно содержит от 0,05% до 30 вес.% тиосульфата натрия и, по меньшей мере, 0,1 вес.% одной или нескольких присадок (А), выбранных из группы, включающей салицилат кальция, салицилат магния, фенолят кальция и/или сульфонат кальция, в расчете на всю смазку. Указанная консистентная смазка применяется для предотвращения коррозии и повышения износостойкости. Консистентную смазку получают путем предварительного смешения тиосульфата натрия с одной или несколькими присадками (А) и добавления смеси к основе смазки, содержащей базовое масло и загуститель, или путем введения в основу смазки тиосульфата натрия и одной или нескольких присадок (А) по отдельности. Технический результат - повышение ингибирующих коррозию свойств и износостойкости при сохранении противозадирных свойств. 3 с. и 7 з.п. ф-лы, 9 табл.

КОМПОЗИЦИЯ НАПОЛНИТЕЛЯ КАБЕЛЯ

Настоящее изобретение относится к волоконно-оптическому кабелю, содержащему композицию наполнителя кабеля, которая содержит: (i) базовое масло, полученное синтезом Фишера-Тропша; и (ii) загущающую систему, которая содержит по меньшей мере один блочный сополимер. Композиция наполнителя кабеля настоящего изобретения обеспечивает усовершенствования реологических характеристик, улучшение свойств при низкой температуре и цветовой устойчивости, а также минимизируется содержание присадок, таких как антиоксиданты и депрессанты температуры текучести, которые необходимо использовать. 9 з.п. ф-лы, 1 ил., 4 табл ...

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 ...

ПЛАСТИЧНАЯ СМАЗКА ДЛЯ ВЫСОКОСКОРОСТНЫХ РАДИАЛЬНО-УПОРНЫХ ПОДШИПНИКОВ ДЛЯ ГИРОСКОПОВ И СИНХРОННЫХ ГИРОМОТОРОВ

Настоящее изобретение относится к пластичной смазке для высокоскоростных радиально-упорных подшипников гироскопов и синхронных гиромоторов, содержащая дисперсионную среду, дисперсную фазу и присадки функционального назначения, при этом дисперсионная среда содержит смесь маловязких полиальфаолефиновых углеводородов ПАОМ-4, диоктилсебацинат и представляющий собой продукты взаимодействия октадециламина, полиизоцианата и анилина, а присадки функционального назначения содержат антиокислительную присадку - фенил-альфа-нафтиламин и противоизносную присадку - трикрезилфосфат. Техническим результатом настоящего изобретения является получение смазки с высоким интервалом температур работоспособности, от минус 50°С до плюс 150°С. 2 табл.

СПОСОБ И УСТРОЙСТВО ДЛЯ ПОЛУЧЕНИЯ МОЧЕВИНОВОЙ КОНСИСТЕНТНОЙ СМАЗКИ

Изобретение относится к способу получения мочевиновой консистентной смазки, который осуществляют в устройстве, использующем экструдер и содержащем несколько реакционных зон, смонтированных в ряд и связанных по текучей среде. При этом устройство включает в себя: (а) первую зону подачи; (b) вторую зону подачи; (с) первую зону реакции-смешивания и (d) зону охлаждения-смешивания, причем указанные зоны расположены в устройстве в порядке (а), (b), (с), (d), и способ включает введение первого исходного компонента в первую зону подачи (а); введение второго исходного компонента во вторую зону подачи (b); реакцию первого и второго компонентов в первой зоне реакции-смешивания (с) и охлаждение и смешивание продукта первой зоны реакции-смешивания в зоне охлаждения-смешивания (d) с получением мочевиновой консистентной смазки. Также изобретение относится к устройству для осуществления данного способа. Настоящее изобретение обладает такими преимуществами, как технологическая стабильность, обладает трансформируемостью ...

Универсальная пластичная смазка

Настоящее изобретение относится к смазочным материалам, в частности к пластичным смазкам, которые могут применяться для обеспечения работы различных узлов трения механизмов в широком интервале температур. Предложена универсальная пластичная смазка на синтетической основе, в качестве которой использована композиция кремнийорганической жидкости и сложного эфира в сочетании с загустителем в виде полимочевины, отличающаяся тем, что в качестве кремнийорганической жидкости использована олигометилэтилсилоксановая жидкость, а в качестве сложного эфира использован ди-2-этилгексиловый эфир себациновой кислоты, взятые в соотношении от 50:50 до 60:40 соответственно, в присутствии загустителя, который содержит димочевину, представляющую собой продукт взаимодействия анилина, додециламина и 2,4-толуилендиизоцианата, гидрофобный модифицированный аэросил и церезин 75 при следующем содержании компонентов, % масс.: димочевина 10,0-21,0; аэросил 3,0-7,0; церезин 3,0-5,0. Техническим результатом настоящего ...

ПЛАСТИЧНАЯ СМАЗКА

Изобретение относится к пластичным смазкам, которая может быть использована в механизмах различного назначения, работающих при температуре до 200°С. Сущность: пластичная смазка содержит, мас. %: комплексное кальциевое мыло в виде смеси кальциевого мыла стеариновой кислоты, кальциевого мыла 12-оксистеариновой кислоты и кальциевого мыла уксусной кислоты при их массовом соотношении 1:(0,2÷1,8):(0,1÷1,2) соответственно 6-20, карбонатированный алкилсалицилат кальция с щелочным числом 100-600 мг КОН/г 80, минеральное или синтетическое масло - остальное до 100. Достигаемый технический результат заключается в обеспечении формирования стабильного структурного каркаса смазки на основе многокомпонентного кальциевого комплекса. 2 табл.

НИЗКОТЕМПЕРАТУРНАЯ ПЛАСТИЧНАЯ СМАЗКА

Изобретение относится к созданию низкотемпературной пластичной смазки, которая может быть использована в механизмах различного назначения, работающих при температуре от минус 60°С. Сущность: низкотемпературная пластичная смазка содержит, мас.%: загуститель 11,0-15,0, антиокислитель аминного и/или фенольного типа 0,3-0,5, наноструктурированную функциональную добавку - наноразмерные частицы галлуазита или монтмориллонита 0,5-5,0, присадку с противоизносными и/или противозадирными свойствами 0,0-3,0, ингибитор коррозии 0,0-2,0, базовое масло - остальное, до 100. Причем при формировании смазки указанную наноструктурированную функциональную добавку используют в виде предварительно механически диспергированной в базовом масле, а после смешения с остальными компонентами - термомеханически диспергированной в смеси указанных компонентов. Технический результат заключается в обеспечении модификации структурного каркаса смазки, используемой наноструктурированной функциональной добавкой. 2 табл.

МОРОЗОСТОЙКАЯ ПОЛУЖИДКАЯ СМАЗКА

Изобретение относится к составам смазочных материалов, в частности к смазкам узлов трения колесных и гусеничных транспортных средств, и летательных аппаратов и может быть использовано в бортовых редукторах и приводных механизмах техники, работающей в интервале температур от минус 60°С (кратковременно до минус 65°С) до 150°С. Смазка содержит взятые в определенном соотношении следующие компоненты, мас.%: литиевое мыло стеариновой или 12-оксистеариновой кислоты - 3,00-7,00; дифениламин - 0,20-1,00; фторопласт - 1,50-4,00; ингибитор коррозии - 0,40-1,40; дисульфид вольфрама - 2,00-7,00; трикрезилфосфат - 1,30-6,30; полимерный загуститель - 0,20-1,00; смесь, обеспечивающая вязкость при минус 50°С не более 1200 Па⋅с, температуру застывания - не выше минус 65°С, низкотемпературного минерального масла со сложным эфиром двухосновной карбоновой кислоты в соотношении от 1:4 до 2:3 до 100. Кроме того, в качестве основы содержит сложный эфир двухосновной карбоновой кислоты или смесь сложных эфиров двухосновных ...

СПОСОБ ИЗГОТОВЛЕНИЯ СМАЗОЧНОГО СТЕРЖНЯ

... 1. Способ изготовления смазочного стержня, включающий смешение наполнителя и связующего с последующим прессованием композита, отличающийся тем, что у стержня формируют оболочку путем покрытия его пропитанной клеем бумагой или тканью. 2. Способ по п.1, отличающийся тем, что для смешения и прессования в качестве наполнителя применяют графит и/или дисульфид молибдена, а в качестве связующего используют битум или его смесь с минеральным маслом. 3. Способ по пп.1 и 2, отличающийся тем, что содержание наполнителя составляет 50-70 мас.%, связующего - остальное. 4. Способ по пп.1-3, отличающийся тем, что при использовании минерального масла его содержание в битуме составляет 5-15 мас.%. 5. Способ по пп.1-4, отличающийся тем, что прессование ведут через фильеру. 6. Способ по пп.1-5, отличающийся тем, что для покрытия стержня используют пропитанную эпоксидным клеем фильтровальную бумагу или пористую хлопчатобумажную ткань.

ПЛАСТИЧНАЯ СМАЗКА ДЛЯ ВЫСОКОСКОРОСТНЫХ РАДИАЛЬНО-УПОРНЫХ ПОДШИПНИКОВ ДЛЯ ГИРОСКОПОВ И СИНХРОННЫХ ГИРОМОТОРОВ

Пластичная смазка для высокоскоростных радиально-упорных подшипников для гироскопов и синхронных гиромоторов, содержащая дисперсионную среду, дисперсную фазу и присадки функционального назначения, при этом дисперсионная среда содержит смесь маловязких полиальфаолефиновых углеводородов, диоктилсебацинат и триоктилфосфат, диспесная фаза содержит загуститель, представляющий собой продукт взаимодействия октадециламина, полиизоцианата и анилина, а в качестве присадок функционального назначения смазка содержит антиокислительную присадку фенил-альфа-нафтиламин и противоизносную присадку трикрезилфосфат при следующем соотношении исходных компонентов в мас.%: !дисперсионная среда: - 84,0-90,0 ! - смесь маловязких полиальфаолефинов ! углеводородов ПАОМ-4 - 37,46-39,46 - диоктилсебацинат - 37,46-39,46 - триоктилфосфат - 22,08 -24,08 дисперсная фаза - загуститель: - 8,0-9,0 ! продукт взаимодействия ! - октадециламина - 35,48-35,92 - полиизоцианата - 3,47-3,89 - анилина - 1,18-1,32 ! антиокислительная ...

Уплотнительная углеводородостойкая пластичная смазка

Способ приготовления консистентных мазей

Антифрикционная пластичная смазка

Смазка для горячей обработки металлов

VERWENDUNG EINER PERFLUORPOLYETHER-ÖLZUSAMMENSETZUNG ALS SCHMIERMITTELZUSAMMENSETZUNG

Verwendung einer Perfluorpolyether-Ölzusammensetzung als Schmier mittelzusammensetzung für metallische Teile, die Graphit oder Molybdändisulfid enthalten, wobei die Perfluorpolyether-Ölzusammensetzung ein Perfluorpolyether-Grundöl und 0,0150 Gew.-% einer Fluor-enthaltenden Verbindung auf Di- oder Monoamidbasis, bezogen auf das Gesamtgewicht des Grundöls und der Verbindung auf Amidbasis, umfasst, und wobei die Verbindung auf Amidbasis eine Verbindung einer der folgenden allgemeinen Formeln [I], [II] oder [III] ist: RCONHR1NHCOR[I]worin R: RfO[CF(CF3)CF2O]aCF(CF3)-, RfO(CF2CF2CF2O)aCF2CF2-, RfO[(CF2CF2O)a(CF2O)b]CF2- oder RfO[(CF2CF2O)a(CF2O)b]CF(CF3)- ist, wobei Rf eine Perfluor-Niederalkylgruppe mit 1 bis 5 Kohlenstoffatomen ist und a und b jeweils ganze Zahlen von 1 bis 30 sind, und R1: eine Alkylengruppe mit 1 bis 30 Kohlenstoffatomen ist, wobei ein Teil oder alle Wasserstoffatome der Alkylengruppe durch Halogenatome substituiert sein können; R2NHCOR[II]worin R: RfO[CF(CF3)CF2O]aCF(CF3 ...

Lubricant composition, e.g. useful for making self-lubricating bearing or roller parts, comprises a polyurethane and a lubricant

The invention relates to a lubricant composition containing a polyurethane and a lubricant, wherein different lubricating greases and oils can be used as lubricant. The lubricant composition can be easily applied on the place to be lubricated by pouring or processed into shaped parts. The lubricant composition is characterized by excellent, long-lasting self-lubricating properties and high temperature resistance.

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. ...

Process for producing ketones from fatty acids

GREASE-SEALED ROLLING CONTACT BEARING

Libricant

Lubricant.

A lubricant composition is disclosed which comprises tall oil and a suitable amount of an ...

Libricant

WITH A THREAD MISTAKE RÖHRFÖRMIGES ELEMENT FOR FITTING BOLT-CASH AGAINST A FIXED RUNNING STEADY ONE

PROCEDURE FOR THE PRODUCTION OF A GREASE FROM INERT OIL AND THICKENING MEANS

UREA GREASE COMPOSITION FOR HOMOKINETI JOINTS

USE OF A LIQUID ONE PERFLUORPOLYETHERS WITH VERY HIGH VISCOSITY AS LUBRICANTS.

GREASE COMPOSITION.

GREASES ON BASIS OF HYDROGEN-CONTAINING MINERAL OR SYNTHESIS OILS WITH IMPROVED CHARACTERISTICS

Fat masses

INSULATING MATERIAL FOR FIBRE OPTICS CABLES

GREASE COMPOSITION

HEAT TRANSMISSION LIQUID CONTAINING NANO-PARTICLES AND CARBOXYLATES

INSULATING MATERIAL FOR FIBRE OPTICS CABLES

Urea grease composition

PERFLUOROPOLYETHER SOLID FILLERS FOR LUBRICANTS

LUBRICANT GELS FOR PNEUMATIC TYRES

ALKYL-SUCCINHYDRAZIDE ADDITIVES FOR LUBRICANTS

PERFLUOROPOLYETHER ADDITIVES

Compounds formed of (per)fluoropolyether chains and end groups having a pyridine structure, with structural formula: T1-CW1-O-R f-CW2-T2(I) wherein T1, T2, equal to or different from each other, have the following meanings: - F, CF3, C2F5, (C2F4)C1: - CH2-B-Y, CH (CF3) O-Y, wherein: - B = O, S; (see above formula) wherein R1, R2, R3, R4, equal to or different from each other, are H, F, C1-C8 linear or branched perfluoroalkyl, NO2, CN; with the proviso that at least one of the two end groups T1, T2 is CH2-B-Y or CH(CF3)O-Y as above defined; W1, W2, equal to or different from each other, are -F, -CF3; Rf is a (per)fluoropolyoxyalkylene chain having a number average molecular weight from 400 to 10,000.

METHOD OF MANUFACTURING A MULTIFUNCTIONAL ADDITIVE AND USING THE SAME

Additives useful for reducing the coefficient of friction in lubricants, greases, or cosmetic formulations, and useful as a substitute for talc and as an anti-misting material are obtained by subjecting a raw plant material, such as cotton, to a dosage of radiation from an electron beam source. The irradiated plant material is subsequently fragmented, or micronized, to product the friction-reducing additive with a reduced diameter capable of reducing the coefficient of friction, used for anti-misting or as a substitute for talc in a variety of applications.

LUBRICANT COMPOSITIONS

Lubricant compositions having improved anticorrosion performance comprising an extreme pressure compound comprising a sulfur-containing compound, an antiwear compound comprising a phosphorous-containing compound, an alkylene amine friction modifying compound, a dispersant compound containing basic nitrogen, and a diluent or base oil as applicable, wherein any of compounds other than the diluent or base oil can be the same or different compounds. These lubricant compositions provide improved anticorrosion resistance and fatigue performance, which prolongs service lives of lubricated parts, especially those used in outdoor applications.

STABILIZED HYDROCARBON GELS AND A METHOD FOR THEIR PREPARATION

EXTREME PRESSURE METAL SULFONATE GREASE

An overbased metal detergent grease comprising at least one of polyalkylene glycol and/or an acid having at least one of both a nitrogen and a sulfur atom. The grease has improved extreme pressure performance as measured by the Standard Test Method for Measurement of Extreme-Pressure Properties of Lubricating Grease (Four-Ball Method), ASTM D2596. Methods of making an overbased metal detergent grease comprising using at least one of polyalkylene glycol and/or an acid having at least one of both a nitrogen and a sulfur atom. Methods of lubricating mechanical components using the grease comprising contacting the mechanical component with the grease. Mechanical components can include gears, drivetrain elements, bearings, hinges, or combinations thereof.

METHOD OF PREPARING GREASES USING LUBRICATING BASE OIL(S), AMINE(S) AND ISOCYANATE(S)

Provided is a method for preparing a grease composition, which comprises mixing an amine in a lubricating bas oil and an isocyanate in a lubricating base oil under high pressure and high flow rate impingement. In one embodiment, the mixing and reaction occurs in a reaction injection molding device. The resulting grease composition is an extremely low noise grease, being virtually clear of any urea thickener particles.

GREASE COMPOSITION INCLUDING AT LEAST ONE POLYOL-ESTER BASE OIL, A FATTY-ACID METAL SOAP, A DIMERCAPTOTHIADIAZOLE DERIVATIVE, AND A SULFUROUS FATTY-ACID ESTER

L'invention a pour objet une composition de graisse comprenant au moins une huile de base de type ester de polyol, au moins un savon métallique d'acide gras, au moins un dérivé du dimercaptothiadiazole et au moins un ester d'acide gras soufré, la quantité de soufre actif à 150°C selon la norme ASTM D1662en masse apportée par l'ester d'acide gras soufré, par rapport à la masse totale de composition de graisse, étant supérieure ou égale à 0,18%.

VISCOSITY-INDEX IMPROVER

The present invention provides polymers comprising polymerised blocks of a hydrogenated conjugated dime (B), a vinylarene (A), and a methacrylate (M) or an amide or imide derivative thereof, wherein the polymer is a mixture of first molecules having a polymerised block structure B-A-M and second molecules having a coupled block structure B-A-M-A-B; a process for their preparation; lubricating oil compositions containing them; and their use as viscosity-index improver additives.

CARRIER-FREE METALWORKING LUBRICANT AND METHOD OF MAKING ANDUSING SAME

A carrier-free pulverulent metalworking lubricant composition. In one preferred form, the composition contains at least two lubricant components one of which comprises a resin having a highly polar functional group the composition being formed by a method comprising the steps of: (a) forming a dry mixture of said particulate lubricant components, and (b) agglomerating said admixture to form agglomerated particles. The application of the composition as a metal working lubricant significantly reduces smoke and oily waste generation in hot forging operations by eliminating the use of oils or volatile organic compounds as carriers, while providing acceptable performance, cleanability, and sprayability.

LUBRICATING GREASE COMPOSITION

... 14 A lubricating grease compound formed of a basic oil and a lower proportion of a thickening agent derived from a polyurea (polycarbamide) compound as well as the usual additives, in which the base oil is an ester of an aromatic di-, tri-, or tetra-carboxylic acid with one or more C7-C18-alkanols and the thickening agent is the reaction product of a compound of the general formula A(B)n (I) with an amine of the general formula H2N-R (II), wherein A = CH4-n, B = aromatic mono- or di-isocyanate residue, n = 1 - 3, and R = an alkyl or an alkenyl residue with 8 to 22-C-atoms or an aryl residue with 6 to 10-C-atoms, and in which the mixture of the basic oil and the thickening agent has a consistency with a penetration of 220 - 385, 0.1mm.

BIODEGRADABLE GREASE COMPOSITIONS

Lubricant compositions comprising biodegradable ester base stocks are provided for water-cooled or air-cooled two-cycle engines. Grease compositions comprising biodegradable ester base storks are provided for a wide variety of machinery including chain saws, truck chassis, and the rail, wheel flanges and switches on the railroads.

BIODEGRADABLE GREASE COMPOSITIONS

Lubricant compositions comprising biodegradable ester base stocks are provided for water-cooled or air-cooled two-cycle engines. Grease compositions comprising biodegradable ester base stocks are provided for a wide variety of machinery including chain saws, truck chassis, and the rail, wheel flanges and switches on the railroads.

BEARING FOR AUTOMOBILE PULLEYS

According to the present invention, PAO oil and ester oil are mixed in a ratio by weight of from 50:50 to 90:10 to provide a base oil having a viscosity of not more than 70 mm2/S at 40.degree. C, to which base oil is then added 5-25% by weight of diurea, which is an alicyclic compound, serving as a thickener, and ZnDTC, which is an additive. The grease thus prepared is filled in a bearing 2. This bearing 2 is fitted in the inner portion of a pulley body 1 having a pulley peripheral surface 1e to be contacted by a belt driven by the engine of an automobile. Thereby, brittle peeling occurring in the raceway surfaces and ball surfaces, and abnormal noise under cold ambient can be reliably prevented.

Lubricant for cold-forming of metals

A lubricant for cold-forming metals contains a dispersant and a polymeric filling compound. The dispersant used is a mixture of distillation residues from hydrolysis products of animal fats and vegetable oils. The polymeric filling compound is a dispersed polymer. The lubricant has the following ratios of the constituents, in % by mass: - disperse polymer 5 - 15 - residue from the distillation of the hydrolysis product of animal fats 43-50 - residue from the distillation of the hydrolysis product of vegetable oils remainder.

МАСТИЛЬНА КОМПОЗИЦІЯ

Мастильна композиція включає полімерну матрицю. Як полімерну матрицу містить гуму загального призначення, розчинену в нафтовому маслі, і додатково - порошок природного мінералу.

THREADED COMPONENT FOR SEIZURE-RESISTANT TUBULAR THREADED JOINT

Консервационная смазка

Консервационная смазка, включающая петролатум, отличающаяся тем, что она дополнительно содержит экстракт фенольной очистки масел и низкомолекулярный полиэтилен при следующем соотношении компонентов, мас. %: петролатум 56-60 экстракт фенольной очистки масел 36-38 низкомолекулярный полиэтилен 3-7.

Silicone grease compositions

Lubricant

GRAISSE RESISTANT AU FEU

Graisse résistant au feu. Cette graisse renferme une huile de base résistant au feu et un agent épaississant constitué par du carbone graphite oléophilique, sensiblement non-hydrophile, présentant une surface d'au moins 170 m**2/g, un rapport << chaleur d'adsorption du n-dotriacontane à partir du n-heptane >> d'au moins 3,5 :1. L'huile de base est constituée par un fluide hydraulique résistant au feu, en particulier un ester ou un amide d'acide phosphorique, notamment des tri(hydrocarbonyl)-phosphates. L'agent épaississant représente de 1 à 20 % de préférence de 2 à 10 %, en poids de la graisse qui peut en outre renfermer des additifs courants. Application à la lubrification de paliers et autres surfaces mobiles, notamment dans des espaces fermés (mines, etc.) où il existe un risque d'incendie.

COMPOSITION OF FILLING OF CABLES, IN PARTICULAR HAS FIBEROPTICS

COMPOSITIONS Of HYDROCARBONS GEL CONTAINING DOUBLE PSEUDOSELS Of an ORTHOPHOSPHATE Of ACID ALDKYLE WITH ALUMINIUM AND a SECOND CATION

Ball bearing and lubricant combination for electrical motors, has properties to meet requirements of resisting critical temperature, where bearing is lubricated with grease for motor having specific viscosity of oil base

Combinaison d'un roulement et d'un lubrifiant destinée à servir de système de support pour un arbre tournant dans un système de ventilation d'évacuation de fumées et de chaleur et ayant des propriétés lui permettant de répondre à l'exigence de résistance à une température critique de 600°C pendant au moins 60 min., avec un arrêt de 2 min. après 15 min. d'exposition à la température critique, le roulement étant un roulement (bagues) en acier martensitique inoxydable avec une cage en acier ; et lequel roulement étant lubrifié avec une graisse ordinaire pour moteur électrique à viscosité d'huile de base de l'ordre de 50 à 200 cSt à 40°C.

GREASE RESISTING RADIATIONS

GREASE COMPOSITION

GREASE COMPOSITION

A grease composition which exhibits a long lifetime even when used in high-temperature atmosphere and excellently low evaporation and which is noncombustible, namely, a grease composition which comprises as the base oil an ionic fluid composed of a cation and an anion and having an ion concentration of 1 mol/dm^3 or above as determined at 20°C and which contains a thickening agent having a dropping point of 260°C or above. © KIPO & WIPO 2008 ...

grease composition, and, method a lubricated spherical

composição de graxa de uréia para juntas de velocidade constante, método de lubrificar uma junta de velocidade constante, uso da composição de graxa de uréia, e, junta de velocidade constante

COMPOSITIONS OF LUBRICATION GREASE

The compositions include a mixture of the followingcomponents: hydrocarbon-based oil; perfluoropolyalkylether oilhaving the general formulaA'-(O-CF2)v-(O-C2F4)w-(O-C3F6)x -(O-C4F8)y- (O-CF2CF(CF3))z-O-A"where A- is -CF3, -C2F5, -C3F7, -CF2T, where T means H or Cl, A"can be A' or -CF3, -C2F5, -C3F7, -CF2T, T being H or Cl and v, w,z, y and z being integers larger of equal to O; dicarbamide as athickener; typical additives and organic and inorganic solidlubricants. The invention also relates to a method for thepreparation of the compositions.6 claims ...

HEAT-TRANSFER FLUID CONTAINING NANO-PARTICLES AND CARBOXYLATES

GREASE COMPOSITION FOR ROLLING BEARING, AND ROLLING BEARING

Provided are a grease composition for a rolling bearing, and a rolling bearing in which the grease composition is encapsulated. The grease composition comprises a mixed oil of a trimethylolpropane fatty acid ester oil and at least one type of pentaerythritol fatty acid ester or other lubricating oil, and a base oil having a dynamic viscosity at 40°C of 19 - 35 mm2/s and an evaporation rate of 10 to 15 mass% when kept for 250 hours at 150°C contains a diurea compound as the thickener.

GREASE COMPOSITION AND BEARINGS

A grease composition which can lengthen the life of bearings even under high temperature environment and exhibits excellent acrylic rubber resistance; and bearings prelubricated with the composition. A grease composition comprising a thickening agent and a base oil, characterized in that the base oil contains a synthetic hydrocarbon oil, that the content of the synthetic hydrocarbon oil in the base oil is 20mass% or above based on the whole base oil, that the content of ester oil in the base oil is 20mass% or below based on the whole base oil, and that the thickening agent consists of a diurea compound represented by general formula (I); and bearings prelubricated with the composition: (I) R1-NHCONH-R2-NHCONH-R3 wherein R2 is a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms; R1 and R3 are the same or different and are each cyclohexyl, or linear or branched alkyl having 8 to 18 carbon atoms; and the molar ratio of cyclohexyl to the sum of R1 and R3 is 60 to 95%.

LUBRICATING COMPOSITIONS BASED ON PERFLUOROPOLYETHERS

Use as additive to stabilize perfluoropolyether lubricant oils at high temperatures, preferably higher than 200°C, of a solid polymer at room temperature, having a softening or a melting point higher than 150°C, preferably higher than 200°C, and containing in the repeating unit at least one aromatic ring, preferably in the backbone, and lubricating compositions containing said additive.

SILANE ADDITIVES FOR LUBRICANTS AND FUELS

Lubricants, especially lubricating oils, and fuels, especially hydrocarbon fuels, contain a class of anti-wear, and extreme pressure additives that are derived from silanes. The additives can be used as either partial or complete replacements for zinc dialkyldithiophosphates currently used in lubricant and fuels.

SILICONE GREASE WITH HIGH COLD COHESION

Silicone grease with high cohesion, characterized in that it comprises at least one oily diorganopolysiloxane polymer, 10% to 30% by weight of organometallic soap(s) and 2% to 10% by weight of non-ecotoxic additive(s) such as non-chlorinated paraffins. Use of said grease as a treating and/or protecting and/or lubricating agent in the field of moving metallic mobile components, with good cohesion, especially when cold, thus making it possible to avoid, inter alia, skating phenomena, especially when cold, between components involved in a drive device.

UREA GREASE COMPOSITION FOR CONSTANT VELOCITY JOINTS

Urea grease composition for constant velocity joints, comprising base oil, one or more urea thickener compounds: A) one or more molybdenum sulphurized dialkyldithiocarbamates represented by general formula (I), wherein Rl and R2 are independently chosen from alkyl groups of from 1 to 24 carbons, m + n = 4, m is from 0 to 3 and n is from 4 to 1, B) triphenylphosphorothionate represented by formula (II) and C) one or more stearic acid metal salts.

UREA GREASE COMPOSITION

A urea grease composition comprising a lubricating base oil and from 2 to 30 wt.% of a thickening agent, with respect to the total weight of the urea grease composition and wherein said thickening agent is selected from: (1) a mixture of a compound (a) and a compound (b), containing compound (a) at 20 to 80 mol %, relative to the total amount of compound (a) and compound (b); (2) a mixture formed by mixing with a compound (c) with a mixture (1); or (3) a compound (c) alone, wherein the compounds are represented by the general formulae (a) R1NHCONHR2NHCONHR1; (b) R3NHCONHR2NHCONHR3; and (c) R1NHCONHR2NHCONHR3, and wherein R2 is a diphenylmethane group, R1 is a C6-10 saturated alkyl group and R3 is a C14-40 saturated and/or unsaturated alkyl group wherein unsaturated alkyl groups constitute at least 20 mol % of the R3 alkyl group.

LUBRICATING COMPOSITIONS CONTAINING AROMATIZED 1,2-DIHYDRO-2,2,4-TRIMETHYLQUINOLINE POLYMERS

Lubricating compositions containing a major amount of a base oil and an effective amount of an additive component having at least one compound of formula (I): where R is one of the following radicals, methyl, ethyl, n-propyl, I-propyl or a combination thereof, and n=0-8. In a preferred embodiment, R is a methyl radical and n=2-3. T he lubricating compositions provide improved lubricating performance, particularly by inhibiting oxidation and improving thermal stability.

Grease compositions for low temperature operation

Grease compositions are provided that can have one or more unexpectedly beneficial low temperature properties even though the grease compositions are formed from lower value components that traditional low temperature greases. The unexpectedly beneficial low temperature properties can be achieved in part by grease compositions that include a naphthenic base stock having a viscosity index of roughly 120 or less and/or a pour point of −20° C. or more while having a naphthenes content of 60 wt % or more. In some aspects, the naphthenic base stock can have an aromatics content of 20 wt % or less.

Aerosol grease

The present invention includes an aerosol grease precursor composition adapted to be sprayed and a pressurized aerosol grease precursor composition in a dispensing container. The present invention also includes a method of dispensing an aerosol grease composition.

Grease composition

A grease composition comprising a base oil containing not less than 10% by weight of an ester oil based on the total base oil and having a kinematic viscosity of 50 to 200 mm2 /sec at 40° C. and 15 to 35% by weight, based on the total grease composition, of a diurea compound represented by formula (I): см. иллюстрацию в PDF-документе wherein R2 represents an aromatic hydrocarbon group having 6 to 15 carbon atoms; and R1 and R3, which may be the same or different, each represent an aromatic hydrocarbon group having 6 to 12 carbon atoms or an aliphatic hydrocarbon group having 8 to 20 carbon atoms, the proportion of the aromatic hydrocarbon groups in the total of R1 and R3 being 50 to 100 mol %. When applied to outer race rotating bearings, the grease composition is excellent in flaking resistance, leak resistance, and low noise properties and prevents premature seizing under high temperature and high speed conditions.

Greasy silicone composition

A grease-like silicone composition comprising at least a liquid organopolysiloxane comprising siloxane units represented by the formula R₂SiO_2/2, siloxane units represented by the formula RSiO_3/2, and siloxane units represented by the formula R₃SiO_1/2 and a thickening agent. A grease-like silicone composition is provided that is capable of containing a large amount of thickening agent and possesses superior heat resistance.

Lubrication for tread supporting ring for use with a rim for a tire having two beads

The present invention relates to a method of lubricating the interface between a supporting ring and inner surface of a tire for use with a rim for a tire having two beads, comprising the step of providing a lubricant on a surface of said supporting ring, said lubricant comprising at least 60 percent by weight of polydimethylsiloxane, from about 7 to about 13 weight percent of amorphous silica, and from about 7 to about 13 weight percent of hydroxy-terminated dimethyl siloxane.

Urea grease composition for constant velocity joints

Urea grease composition for constant velocity joints is provided containing base oil, one or more urea thickener compounds, (A) one or more molybdenum sulphurized dialkyldithiocarbamates represented by general formula (I) wherein R<1 >and R<2 >are independently chosen from alkyl groups of from 1 to 24 carbons, m+n=4, m is from 0 to 3 and n is from 4 to 1, (B) triphenylphosphorothionate represented by formula (II) and (C) one or more stearic acid metal salts.

Grease composition

A grease composition for constant velocity joints which comprises the following components: (a) a base oil, (b) a thickener, (c) a montan wax, (d) a zinc sulfonate, and (e) a sulfurized molybdenum dialkyldithiocarbamate.

Cutting oil composition

Disclosed is a cutting oil composition, which is vastly superior in view of layer separation, dispersibility, viscosity, ingot-cleaning time after sawing, and wafer warpage after sawing, compared to conventional cutting oil compositions, and which includes mineral oil that is highly hydrogenated, as represented by Chemical Formulas 1 to 3, bentonite clay as a thickener, and glycerol trioleate as a dispersant. A cutting method using the cutting oil composition is also provided.

Viscosity index improver concentrates

A viscosity index improver containing, in non-ester diluent oil, one or more hydrogenated, functionalized linear block copolymers having at least one block derived from monoalkenyl arene covalently linked to at least one block derived from diene in an amount that is greater than the critical overlap concentration (ch*), in mass %, for the linear block copolymers in the diluent oil; and an amount of ester base stock.

Lubricating grease composition for bearings of electronic devices

Grease formulations

A grease formulation containing a thickener and a Fischer-Tropsch derived base oil, in particular a heavy or extra heavy base oil. The use of a Fischer-Tropsch oil results in an increase in thickener concentration and in improved properties such as anti-wear and copper corrosion performance. Also provided is the use of a Fischer-Tropsch derived base oil in a grease formulation, for the purpose of improving its anti-wear and/or copper corrosion performance, and/or for reducing the concentration of an additive in the formulation.

GREASE COMPOSITION

LUBRICATING COMPOSITIONS CONTAINING AROMATIZED 1,2-DIHYDRO-2,2,4-TRIMETHYLQUINOLINE POLYMERS

Lubricating compositions containing a major amount of a base oil and an effective amount of an additive component having at least one compound of formula (I): where R is one of the following radicals, methyl, ethyl, n-propyl, I-propyl or a combination thereof, and n=0-8. In a preferred embodiment, R is a methyl radical and n=2-3. T he lubricating compositions provide improved lubricating performance, particularly by inhibiting oxidation and improving thermal stability.

A bearing for an electrically controlled throttle motor and grease composition

A bearing for an electronically controlled throttle motor in an automobile filled with a grease composition with a kinetic viscosity between 40 and 150 mm2/sec (at 40°C) containing (a) a straight-chain perfluoropolyether oil with a kinetic viscosity less than 25 mm2/sec (at 40°C) expressed by the formula RfO(CF2O)p(C2F4O)q(C3F6O)rRf (where Rf is a perfluoro lower alkyl group, and p, q and r are integers whose total is between 25 and 45), (b) a base oil containing a straight-chain perfluoropolyether oil with a kinetic viscosity greater than 250 mm2/sec (at 40°C) expressed by the formula RfO(CF2O)p(C2F4O)q(C3F6O)rRf (where Rf is a perfluoro lower alkyl group, and p, q and r are integers whose total is between 80 and 200) and (c) a polytetrafluoroethylene filler.

Filling material for fibre optical cables

Disclosed are hydrophobic compositions useful for filling the voids within jacketed optical fiber cables. The compositions include about 85 to 95 parts by weight of mineral oil, 5 to 15 parts by weight of a (styrene) - (ethylene/propylene) diblock copolymer having a styrene: (ethylene/propylene) ratio of 37.5:62.5 to 27.5:72.5 and a specific gravity of about 0.90 to 0.95, optional antioxidant, and optional metal deactivator. The oil is selected from naphtanic mineral oils comprising 45 to 50 wt.% naphtanics and the balance paraffins and having a pour point of -45°F to -25°F and poly-alphaolefins and mixtures thereof having a pour point of -100°F to -50°F.

Filling composition for optical-fibre cables

ROLLER BEARING

PROBLEM TO BE SOLVED: To provide a roller bearing subject to operation under extreme pressures, enhanced in lubricating performance and further enhanced in abrasion resistance and torque reduction. SOLUTION: The roller bearing is characterized by rollably holding multiple rollers via a holder in between an inner ring and an outer ring and being sealed with a lubricant composition where an ester oil is compounded with a specific urea compound and a benzylidene sorbitol derivative in the weight ratio (the benzylidene sorbitol derivative/the urea compound) of 0.1-1.0 so as to be 10-30 mass% in the total amount of the urea compound and the benzylidene sorbitol derivative. COPYRIGHT: (C)2009,JPO&INPIT ...

GREASE COMPOSITION EMPLOYING FLUORINATED POLYMER OIL AND HEXAGONAL LATTICE BORON NITRIDE

PURPOSE: To obtain a grease composition having very good lubricity even under severe conditions by blending a fluorinated polymer oil and boron nitride having a specified mean particle diameter and particle size distribution at a specified ratio. CONSTITUTION: This composition is obtained by blending 55-95 wt.% liquid fluorinated polymer oil with 5-45 wt.% thickener containing boron nitride powder 25-75 wt.% of which has a mean particle diameter of 2-50 μm and 75-25 wt.% of which has a mean particle diameter of 0.01-1 μm and which has a bimodal particle size distribution. The thicker contains hexagonal lattice boron nitride. Examples of the fluorinated oil used include a chlorotrifluoroethylene telomer, a fluorosilicone polymer and a perfluoropolyether. The thickener may contain a fluorinated thickener, for example, with a weight ratio of boron nitride to a fluorinated thickener being (0.1 to 10):1. If necessary, a dispersant, a wetting agent, an abrasion resistance improver and a metal ...

グリース組成物

ROLLING BEARING GREASE COMPOSITION AND ROLLING BEARING

PROBLEM TO BE SOLVED: To provide a rolling bearing grease composition which is capable of keeping good lubricating properties even under very severe conditions and is safe because of its little influence on the environment and to provide a rolling bearing using the same. SOLUTION: Bismuth dithiocarbamate (BiDTC) is added to a urea grease comprising a lubricating base oil comprising a poly-α-olefin synthetic oil or a diphenyl ether synthetic oil and a diurea thickener or to a fluorine grease comprising a lubricating base oil comprising a fluorine-containing synthetic oil and a fluororesin thickener. This structure forms a surface film on the running surfaces of the inner and outer rings of the bearing or on the surfaces of the rolling elements. Therefore, a rolling bearing lubricated therewith can keep good lubricating properties even under very severe conditions such as high rotation speeds, high temperatures, and high loads. The rolling bearing grease composition is less harmful to the ...

PRODUCTION OF LUBRICATING GREASE

CONSTANT VELOCITY JOINT GREASE AND CONSTANT VELOCITY JOINT

PROBLEM TO BE SOLVED: To provide a novel grease composition excellent in the flaking prevention performance and the heat-resistant performance in rolling movement, and a constant velocity joint. SOLUTION: This constant velocity joint grease comprises a base oil, a thickener, and an inorganic bismuth in an amount of 0.01-15 wt.% based on the entire grease, and the inorganic bismuth is at least one inorganic bismuth selected from a bismuth powder, bismuth sulfate, and bismuth trioxide; the base oil is composed of at least one oil selected from a PAO oil, a mineral oil, an ester oil, and an ether oil and has a kenematic viscosity at 40°C of 30-500 mm2/s; and the thickener is at least one compound selected from a urea compound and lithium soap. The constant velocity joint has the constant velocity joint grease sealed therein. COPYRIGHT: (C)2006,JPO&NCIPI ...

LUBRICANT COMPOSITION AND ROLLER BEARING

PROBLEM TO BE SOLVED: To provide a lubricant composition which brings about elongation of a lubricity life span at an applied part under an extreme low temperature or an extreme pressure condition, and to provide a roller bearing superior in lubrication life span and made by sealing the lubricant composition described above therein. SOLUTION: The lubricant composition contains a synthetic oil as a base oil and a gelling agent comprised of a lipophilic and making thixotropic agent in a ratio of 1-20 mass%, and the roller bearing in which a plurality of rolling elements are kept to be freely rolling between an inner ring and an outer ring and the lubricant composition described above is also sealed. COPYRIGHT: (C)2008,JPO&INPIT ...

HIGH EFFICIENCY ENGINE OIL COMPOSITIONS

This invention is directed to passenger car engine oil compositions comprising in admixture wt % to wt % of a first base oil component, based on the total weight of the composition, the first base oil component consisting of a polyalphaolefin base stock or combination of polyalphaolefin base stocks, each having a kinematic viscosity at ° C. of from cSt to cSt; wt % to wt % of a second base oil component, based on the total weight of the composition, the second base oil component consisting of a Group II, Group III or Group V base stock, or any combination thereof; and at least wt % viscosity index improver, on a solid polymer basis. 1. An engine oil composition , comprising in admixture:60 wt % to 90 wt % of a first base oil component, based on the total weight of the composition, the first base oil component consisting of a polyalphaolefin base stock or combination of polyalphaolefin base stocks, each having a kinematic viscosity at 100° C. of from 3.2 cSt to 3.8 cSt;0.1 wt % to 20 wt % of a second base oil component, based on the total weight of the composition, the second base oil component consisting of a Group II, Group III or Group V base stock, or any combination thereof; andat least 0.75 wt % viscosity index improver, on a solid polymer basis;wherein the composition has a kinematic viscosity at 100° C. of from 5.6 to 16.3 cSt, a Noack volatility of less than 15% as determined by ASTM D5800, a CCS viscosity of less than 6200 cP at −35° C. as determined by ASTM D5293, and an HTHS viscosity of from 2.5 mPa·s to 4.0 mPa·s at 150° C. as determined by ASTM D4683.2. The engine oil composition of claim 1 , wherein the viscosity index of the composition is at least 180.3. The engine oil composition of claim 1 , wherein the first base oil component consists of a polyalphaolefin base stock chosen from the group consisting of a metallocene-catalyzed polyalphaolefin base stock and a polyalphaolefin base stock obtained by a process for producing low viscosity ...

METHOD FOR IMPROVING ENGINE FUEL EFFICIENCY

A method for improving fuel efficiency, while maintaining or improving wear protection, in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil having a HTHS viscosity of less than 2.6 cP at 150° C. In one form, the formulated oil has a composition that includes a lubricating oil base stock as a major component, and zinc dialkyl dithio phosphate, a mixture of (i) at least two alkali metal detergents, (ii) at least two alkaline earth metal detergents, or (iii) one or more alkali metal detergents and one or more alkaline earth metal detergents; and a viscosity index improver, as minor components. The lubricating oil has a HTHS viscosity of less than 2.6 cP at 150° C. The composition contains less than 2 weight percent of the viscosity index improver, based on the total weight of the formulated oil or lubricating engine oil. 1. A method for improving fuel efficiency , while maintaining or improving wear protection , in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil having a HTHS viscosity of less than 2.6 cP at 150° C. , said formulated oil having a composition comprising a lubricating oil base stock as a major component , and a zinc dialkyl dithio phosphate , a mixture of (i) at least two alkali metal detergents , (ii) at least two alkaline earth metal detergents , or (iii) one or more alkali metal detergents and one or more alkaline earth metal detergents; and a viscosity index improver , as minor components; wherein said composition contains less than 2 weight percent of the viscosity index improver , based on the total weight of the formulated oil; and wherein said composition is sufficient for the formulated oil to pass wear protection requirements of one or more engine tests selected from TU3M , Sequence IIIG , Sequence IVA and OM646LA.2. The method of wherein the base oil comprises a Group I claim 1 , Group II claim 1 , Group III claim 1 , Group IV or Group V base oil.3. The ...

CUTTING OIL WITH VEGETAL OIL

Methods and compositions relating to a cutting oil including vegetal oil such as Pinhao Manso vegetal oil, which may be applied to a metal such as aluminum or gray cast iron during milling, tapping, and/or drilling operations. 1. A cutting oil comprising Pinhao Manso vegetal oil in an amount of at least about 30 Wt % of the cutting oil.2. The cutting oil of claim 1 , wherein the cutting oil comprises about 40 wt % to about 70 wt % Pinhao Manso vegetal oil.3. The cutting oil of claim 1 , comprising synthetic esters in an amount of about 5 wt % to about 20 wt % of the cutting oil.4. The cutting oil of claim 1 , comprising saturated and/or unsaturated fatty acids in an amount of about 10 wt % to about 30 wt % of the cutting oil.5. A method of metal processing claim 1 , comprising:applying a cutting oil to a metal, wherein the cutting oil comprises Pinhao Manso vegetal oil in an amount of at least about 30 wt % of the cutting oil.6. The method of claim 5 , wherein the cutting oil comprises Pinhao Manso vegetal oil in an amount of about 40 wt % to about 70 wt % of the cutting oil.7. The method of claim 5 , wherein the cutting oil is applied to a metal for milling claim 5 , tapping claim 5 , and/or drilling operations.8. The method of claim 7 , wherein the metal is aluminum.9. The method of claim 7 , wherein the metal is gray cast iron. This application claims priority benefit from U.S. Provisional Patent Application No. 61/607,812, filed on Mar. 7, 2012, which is incorporated by reference in its entirety.Cutting fluid is often used in abundance to cool and lubricate machining and grinding processes of metal. The use of cutting fluid generally aids in economy of tools and it becomes easier to keep tight tolerances and to maintain workpiece surface properties without damages.According to some embodiments of the present invention, a cutting oil includes Pinhao Manso vegetal oil in an amount of at least about 30 wt % of the cutting oil; or about 40 wt % to about 70 wt % of ...

PERFLUOROPOLYETHER LUBRICANT AND SYSTEMS COMPRISING SAME

A surface agent includes two end portions and a middle portion disposed between the end portions. The end portions include a terminal section and a midsection. The terminal section includes at least one surface active functional group. The midsection includes at least one perfluoroethyl ether unit. The middle portion includes at least one perfluorobutyl ether unit. 1. A surface agent of the formula:{'br': None, 'sub': e', 'm', 'e, 'R-R-R'}{'sub': 'm', 'claim-text': {'br': None, 'sub': 2', '2', '2', '2', '2', '2', '2', '2', 'n', '2', '2', '2', '2, '—OCHCFCFCFO—(CFCFCFCFO)—CFCFCFCHO—'}, 'wherein the middle portion (R) includes'}wherein n is at least 1;{'sub': 'e', 'claim-text': {'br': None, 'sub': t', 'z', '1, 'R-R-R'}, 'wherein the end portions (R) are of the formula'}{'sub': 'z', 'claim-text': {'br': None, 'sub': 2', '2', '2', '2', 'm', '2', '2, '—OCHCFO—(CFCFO)—CFCHO—'}, 'wherein the midsection (R) includes a segment'}wherein m is at least 1;{'sub': 't', 'wherein the terminal section (R) includes at least one surface active functional group.'}2. The surface agent of claim 1 , wherein n is in a range of 1 to 6.3. The surface agent of claim 1 , wherein m is in a range of 2 to 6.4. The surface agent of claim 1 , wherein the surface active functional group is selected from the group consisting of a hydroxyl group claim 1 , a piperonyl group claim 1 , an amine group claim 1 , a phosphazene group or a combination thereof.5. The surface agent of claim 1 , wherein the intermediate section includes at least one surface active functional group.6. The surface agent of claim 5 , wherein the surface active functional group is selected from the group consisting of a hydroxyl group claim 5 , a piperonyl group claim 5 , an amine group claim 5 , a phosphazene group or a combination thereof.7. The surface agent of claim 1 , wherein the terminal section (R) includes{'br': None, 'sub': '2', 'HOCHCH(OH)CHO'} This application is a Divisional of U.S. Utility patent application Ser. No. ...

DEFOAMING AGENT COMPOSITION FOR LUBRICATING OIL AND METHOD OF DEFOAMING USING THIS

The present invention provides a defoaming agent composition in gel form, of number 1 NLGI grade or harder, for application to the inside wall of a container, being a composition for defoaming bubbles generated from lubricating oil present within a container. The present invention further provides a method of defoaming lubricating oil characterised in that it includes a step of applying a defoaming agent composition in gel form, of number 1 NLGI grade or harder, to the inside wall of a container for lubricating oil and characterised in that this step is a step in which said defoaming agent composition is applied to the inside wall face at or above the oil surface of the lubricating oil, or higher than this. 1. A defoaming agent composition in gel form , of number 1 NLGI grade or harder , for application to the inside wall of a container , being a composition for defoaming bubbles generated from lubricating oil present within a container.2. The defoaming agent composition according to which is a grease whose base oil is a fluorine oil.3. The defoaming agent composition according to characterised in that a thickener of said grease is tricalcium phosphate.4. The defoaming agent composition according to for application to the inside wall face at or above the oil surface of the lubricating oil claim 1 , or higher than this.5. The defoaming agent composition according to wherein said container is a gearbox.6. A method comprising:applying a defoaming agent composition in gel form, of number 1 NLGI grade or harder, to the inside wall of a container for a lubricating oil, wherein the defoaming agent composition is applied to an inside wall face of the container at or above the oil surface of the lubricating oil, or higher than this.7. The method of wherein the container is a gearbox.8. The method of wherein the defoaming agent composition is a fluorine-based defoaming agent composition.9. The method of wherein the defoaming agent composition is a fluorine-based grease ...

SILICONE GREASE COMPOSITION

The invention provides a silicone grease composition where the high friction properties are improved, with no decrease of the wear preventive characteristics. The silicone grease composition contains a thickener, a base oil containing a silicone oil in an amount of 50 mass % or more of the total mass of the base oil, and a metallic oxide with a Mohs hardness of 6 or less as a friction modifier. 1. A silicone grease composition comprising a thickener; a base oil comprising a silicone oil in an amount of 50 mass % or more of the total mass of the base oil; and a friction modifier comprising a metallic oxide with a Mohs hardness of 6 or less.2. The silicone grease composition of claim 1 , wherein the metallic oxide has a Mohs hardness of 2 to 6.3. The silicone grease composition of claim 1 , wherein the metallic oxide is magnesium oxide claim 1 , zinc oxide or molybdenum oxide.4. The silicone grease composition of claim 1 , wherein the metallic oxide is contained in an amount of 0.1 to 10 mass % based on the total mass of the composition.8. The silicone grease composition of claim 1 , wherein the metallic oxide has an average particle diameter of 2 μm or less. The present invention relates to a silicone composition. More particularly, the invention relates to a silicone grease composition suitably used for the parts to be lubricated, to be more specific, the lubrication parts of the clutch, the torque limiter mechanism and the like where high coefficient of friction and excellent wear preventive characteristics are needed.In consideration of the global environmental problems, weight reduction of the automobile has been advancing. In line with this tendency, a variety of portions tend to use more clutches and torque limiter mechanisms than ever. Of such a variety of clutches and torque limiter mechanisms using the grease composition in the automobile, the engine starter clutch is exposed to the highest torque and the severest operating conditions.The clutch of the ...

POLYFLUORO LUBRICANT COMPOSITIONS

Provided herein is a lubricant comprising a compound of Formula I: 2. The polyfluoro lubricant composition of claim 1 , wherein A is —H.3. The polyfluoro lubricant composition of claim 1 , wherein A is —CHCH(OH)CHOH.4. The polyfluoro lubricant composition of claim 1 , wherein A is —CHCH(OH)CHOCHCH(OH)CHOH.5. The polyfluoro lubricant composition of claim 1 , wherein B is —H.6. The polyfluoro lubricant composition of claim 1 , wherein B is —CHCH(OH)CHOH.7. The polyfluoro lubricant composition of claim 1 , wherein B is —CHCH(OH)CHOCHCH(OH)CHOH.8. The polyfluoro lubricant composition of claim 1 , wherein w is 0.9. The polyfluoro lubricant composition of claim 1 , wherein the number average molecular weight of the one or more compounds of Formula I is between about 300 Da to about 9000 Da.10. The polyfluoro lubricant composition of claim 9 , wherein the number average molecular weight of the one or more compound of Formula I is between about 900 Da to about 1800 Da.11. The polyfluoro lubricant composition of further comprising a liquid medium.12. The polyfluoro lubricant composition of claim 11 , wherein the liquid medium is a polyfluoroether (PFPE) polymer.13. The polyfluoro lubricant composition of claim 12 , wherein the polyfluoroether polymer is selected from: Zdol claim 12 , Z-DIAC claim 12 , Z-tetraol claim 12 , A20H claim 12 , AM2001 claim 12 , X1-P claim 12 ,Z-03 and D-4OH.14. An apparatus claim 1 , comprising: a substrate; a magnetic layer over the substrate for magnetic recording; a protective overcoat for protecting the magnetic layer; and a layer of lubricant over the protective overcoat comprising a composition of .15. A method of lubricating a media storage layer surface in an apparatus claim 1 , the method comprising the step of applying a lubricant composition of over a surface to be lubricated.16. The method of claim 1 , wherein the relative touchdown spacing of the polyfluoro lubricant composition of on a media storage layer is more than 2 Angstroms ...

MINERAL BASE OIL, LUBRICANT COMPOSITION, INTERNAL COMBUSTION ENGINE, LUBRICATING METHOD OF INTERNAL COMBUSTION ENGINE

Provided is a mineral base oil satisfying the following requirements (I) to (III): 1: A mineral base oil satisfying the following requirements (I) to (III):{'sup': 2', '2, 'Requirement (I): a kinematic viscosity at 100° C. is 2 mm/s or more and less than 7 mm/s;'}Requirement (II): a viscosity index is 100 or more; andRequirement (I): a temperature gradient Δ|η*| of complex viscosity between two temperature points −10° C. and −25° C. is 60 Pas/C or less as measured with a rotary rheometer under conditions at an angular velocity of 6.3 rad/s and a strain amount of 0.1 to 100%.2: The mineral base oil according to claim 1 , further satisfying the following requirement (IV):Requirement (IV): complex viscosity η* at −35° C. is 60,000 Pa·s or less as measured with a rotary rheometer under conditions at an angular velocity of 6.3 rad/s and a strain amount of 0.1%.3: The mineral base oil according to claim 1 , having a naphthene content (% C) of 10 to 30.4: The mineral base oil according to claim 1 , having a naphthene content (% C) of 15 to 30.5: The mineral base oil according to claim 1 , having an aromatic content (% C) of 0.1 or less and a sulfur content of less than 100 ppm by mass.6: A lubricating oil composition comprising a mineral base oil satisfying the following requirements (I) to (III) and an olefinic copolymer:{'sup': 2', '2, 'Requirement (I): a kinematic viscosity at 100° C. is 2 mm/s or more and less than 7 mm/s;'}Requirement (II): a viscosity index is 100 or more; andRequirement (III): a temperature gradient Δ|η*| of complex viscosity between two temperature points −10° C. and −25° C. is 60 Pa·s/° C. or less as measured with a rotary rheometer under conditions at an angular velocity of 6.3 rad/s and a strain amount of 0.1 to 100%.7: The lubricating oil composition according to claim 6 , wherein the content of the olefinic copolymer is from 0.01 to 15.0% by mass on the basis of the whole amount of the lubricating oil composition.8: The lubricating oil ...

Branched Acids

A novel, branched, saturated, primary fatty acid amide is disclosed. Application areas are as a slip and/or antiblocking agent or mould release agent. The branched, saturated, primary fatty acid has a formula R—CO—NHwhere R is a saturated, branched hydrocarbon chain having 11 to 23 carbon atoms, wherein at least 60% by weight of the R—CO—NHmolecules have monoalkyl branches and less than 25% by weight of the R—CO—NHmolecules have polyalkyl branches. 115-. (canceled)16. A mixture of branched saturated monocarboxylic acids wherein at least 60% by weight of the acid molecules have monoalkyl branches and less than 25% by weight of the acid molecules have polyalkyl branches , wherein the monoalkyl branches comprise methyl branches and ethyl branches.18. The mixture of branched fatty acids of claim 17 , wherein at least 70% by weight of the R—COOH molecules have monoalkyl branches.19. The mixture of branched fatty acids of claim 17 , wherein less than 20% claim 17 , by weight of the R-COOH molecules have polyalkyl branches.20. The mixture of branched fatty acids of claim 17 , wherein R has 13 to 23 carbon atoms.21. The mixture of branched fatty acids of claim 17 , wherein the monoalkyl branches further comprise propyl branches.22. The mixture of branched fatty acids of claim 17 , wherein the monoalkyl branches are at least 80% methyl branches.23. The mixture of branched fatty acids of claim 17 , wherein the monoalkyl branches are positioned in the middle of the hydrocarbon chain R. The present invention relates to a novel, branched, saturated, primary fatty acid amide and its use as a slip and/or antiblocking agent.In the manufacture of polyolefin and related copolymer films it is common practice to include slip agents in the polymer formulation. The slip characteristic of a polyolefin film or layer is a measure of the ability to slide one layer over another and is commonly expressed in terms of the film's coefficient of friction. The slip agents migrate to the surface of ...

LUBRICATING COMPOSITION

Lubricating composition for use in the crankcase of an engine comprising: (i) a base oil comprising at least one monoester or a mixture of monoesters, wherein said monoester or mixture of monoesters has a kinematic viscosity at 100° C. of not more than 4 mm/s, a viscosity index of at least 130 and a Noack evaporation loss of not more than 20 wt %; and (ii) a polymeric viscosity index improvers selected from (a) one or more comb polymers; (b) a poly(meth)acrylate polymer having 1 to 70 mol % of one or more (meth)acrylate structural units represented by formula (1) below (1) wherein Ris a hydrogen atom or a methyl group, and Ris a straight chain or branched hydrocarbon group having not less than 16 carbon atoms; (c) styrene-diene hydrogenated copolymers; and (d) mixtures thereof. The lubricating composition of the present invention provides improved fuel economy properties. 2. A lubricating composition according to wherein said monoester or mixtures of monoesters has a kinematic viscosity at 100° C. of not more than 3.3 mm/s.3. A lubricating composition according to wherein said monoester or mixtures of monoesters has a Noack evaporation loss of not more than 15 wt %.4. A lubricating composition according to wherein the at least one monoester or mixture of monoesters is present at a total level of at least 10 wt % claim 1 , by weight of the lubricating composition.5. A lubricating composition according to wherein the at least one monoester or mixture of monoesters is present at a total level of at most 75 wt % claim 1 , by weight of the lubricating composition.6. A lubricating composition according to wherein the polymeric viscosity index improver is a comb polymer.7. A lubricating composition according to wherein the polymeric viscosity index improver is present in a solid polymer amount of from 0.1 wt % to 7 wt % claim 1 , by weight of the lubricating composition.8. A lubricating composition according to wherein said at least one monoester or mixture of said ...

GREASE COMPOSITION, MECHANISM COMPONENT, AND PRODUCTION METHOD FOR GREASE COMPOSITION

The present invention addresses a problem of providing a grease composition that uses hydrophilic nanofibers but still has excellent water resistance and does not readily experience oil separation. The grease composition contains a base oil, hydrophilic nanofibers having a thickness (d) of 1 to 500 nm, and an organic bentonite. 1. A grease composition comprising a base oil , hydrophilic nanofibers having a thickness (d) of 1 to 500 nm , and an organic bentonite.2. The composition of claim 1 , wherein the content ratio of the hydrophilic nanofibers to the organic bentonite is 0.2 to 5.0 as a ratio by mass.3. The composition of claim 1 , wherein the content of the hydrophilic nanofibers is 0.1 to 20% by mass based on the total amount of the grease composition.4. The composition of claim 1 , wherein the content of the organic bentonite is 0.01 to 15% by mass based on the total amount of the grease composition.5. The composition of claim 1 , wherein the aspect ratio of the hydrophilic nanofibers is 5 or more.6. The composition of claim 1 , wherein the hydrophilic nanofibers contain one or more polysaccharides selected from cellulose claim 1 , carboxymethyl cellulose claim 1 , chitin and chitosan.7. A mechanical component filled with the composition of .8. A method of producing a grease composition claim 1 , comprising the following steps (1) to (3):Step (1): a step of mixing a water dispersion prepared by blending hydrophilic nanofibers having a thickness (d′) of 1 to 500 nm in water, a base oil and a dispersant to prepare a liquid mixture;Step (2): a step of removing water from the liquid mixture to prepare a grease;Step (3): a step of blending an organic bentonite in the grease.9. The method of claim 8 , wherein the dispersant is one or more selected from aprotic polar solvents claim 8 , alcohols and surfactants. The present invention relates to a grease composition, a mechanical component filled with the grease composition, and a method for producing the grease ...

LOW-FRICTION AND LOW-ADHESION MATERIALS AND COATINGS

Disclosed are materials that possess both low adhesion and the ability to absorb water. The material passively absorbs water from the atmosphere and then expels this water upon impact with debris, to create a self-cleaning layer. The lubrication reduces friction and surface adhesion of the debris (such as an insect), which may then slide off the surface. The invention provides a material comprising a continuous matrix including a polymer having a low surface energy (less than 50 mJ/m) and a plurality of inclusions, dispersed within the matrix, each comprising a hygroscopic material. The continuous matrix and the inclusions form a lubricating surface layer in the presence of humidity. The material optionally contains porous nanostructures that inject water back onto the surface after an impact, absorbing water under pressure and then releasing water when the pressure is removed. The material may be a coating or a surface, for example. 1. A low-friction , low-adhesion material comprising:{'sup': 2', '2, 'a substantially continuous matrix including a low-surface-energy polymer having a surface energy between about 5 mJ/mto about 50 mJ/m; and'}a plurality of inclusions, dispersed within said matrix, each comprising a hygroscopic material,wherein said continuous matrix and said inclusions form a lubricating surface layer in the presence of humidity.2. The material of claim 1 , wherein said material is characterized by a water absorption capacity of at least 5 wt % water based on total weight of said material.3. The material of claim 2 , wherein said material is characterized by a water absorption capacity of at least 10 wt % water based on total weight of said material.4. The material of claim 1 , wherein said surface energy of said polymer is between about 10 mJ/mto about 40 mJ/m.5. The material of claim 1 , wherein said low-surface-energy polymer is a fluoropolymer.6. The material of claim 5 , wherein said fluoropolymer is selected from the group consisting of ...

HIGH TEMPERATURE HEAT-RESISTANT OIL-BASED RELEASE AGENT, HIGH TEMPERATURE HEAT-RESISTANT ELECTROSTATIC APPLICATION-TYPE OIL-BASED RELEASE AGENT, AND APPLICATION METHOD THEREFOR

An oil-based release agent of the present invention contains a petroleum-based hydrocarbon solvent (a) and a high temperature adhesive (b), is applied to a metal die used for die casting or casting, has high adhesion and high lubricity even with respect to a metal die at a high temperature particularly of 300° C. or higher, and can prevent seizure. In addition, the present invention provides a method for applying the oil-based release agent of the present invention by controlling an adhesion amount thereof by micronization and speed-control thereof with respect to a metal die at a high temperature, and an electrostatic application method. 1. A high temperature heat-resistant oil-based release agent comprising a petroleum-based hydrocarbon solvent (a) and a high temperature adhesive (b) ,wherein the high temperature adhesive (b) is at least one selected from the group consisting of a fluororesin, polysulfone, a phenolic resin, an epoxy resin, and a silicon-containing compound, and has a weight average molecular weight of 100,000 or more.2. The high temperature heat-resistant oil-based release agent according to claim 1 , wherein the petroleum-based hydrocarbon solvent (a) is at least one selected from the group consisting of a paraffinic hydrocarbon solvent claim 1 , an olefinic hydrocarbon solvent claim 1 , a naphthenic hydrocarbon solvent claim 1 , and an aromatic hydrocarbon solvent.3. (canceled)4. The high temperature heat-resistant oil-based release agent according to claim 1 , wherein the high temperature adhesive (b) is dimethyl polysiloxane having a weight average molecular weight of 100 claim 1 ,000 or more.5. The high temperature heat-resistant oil-based release agent according to claim 1 , further comprising a low volatile conductive modifier (f).6. The high temperature heat-resistant oil-based release agent according to claim 5 , wherein the low volatile conductive modifier (f) contains at least one selected from the group consisting of an imidazolium ...

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 ...

CONTINUOUS PROCESS FOR THE MANUFACTURE OF GREASE

This disclosure relates to a continuous process for preparing a grease thickener product in which operating conditions of the continuous process can be varied to obtain desired grease product properties. The process includes: (a) introducing a Cto Chydroxy fatty acid or a Cto Chydroxy fatty acid ester, and a metal base into a reaction zone; (b) operating the reaction zone at a temperature between 100° C. and 240° C. to react the Cto Chydroxy fatty acid or the Cto Chydroxy fatty acid ester, and the metal base, to produce a grease thickener product; (c) introducing the grease thickener product of step (b) into a flash chamber zone; and (d) operating the flash chamber zone at a temperature sufficient to remove volatiles from the grease thickener product of step (b). The continuous process conditions afford a production throughput of grease thickener product of greater than 8,000 pounds per hour. 1. A continuous process for preparing a grease thickener product , said process comprising:{'sub': 3', '30', '3', '30, '(a) introducing a Cto Chydroxy fatty acid or a Cto Chydroxy fatty acid ester, and a metal base into a reaction zone;'}{'sub': 3', '30', '3', '30, '(b) operating the reaction zone at a temperature between about 100° C. and about 240° C. to react the Cto Chydroxy fatty acid or the Cto Chydroxy fatty acid ester, and the metal base, to produce a grease thickener product;'}(c) introducing the grease thickener product of step (b) into a flash chamber zone; and 'wherein continuous process conditions afford a production throughput of grease thickener product of greater than about 8,000 pounds per hour.', '(d) operating the flash chamber zone at a temperature sufficient to remove volatiles from the grease thickener product of step (b);'}2. The continuous process of claim 1 , further comprising:(e) passing the grease thickener product of step (b) through a reaction zone back pressure valve operated between about 10 and about 300 psig;(f) passing the grease thickener ...

POLY(METH)ACRYLATE COPOLYMERS WITH BRANCHED C17 ALKYL CHAINS AND THEIR USE IN LUBRICANT OIL COMPOSITIONS

The presently claimed invention is directed to poly(meth)acrylate copolymers containing alkyl(meth)acrylate comonomer with branched C17 alkyl group. The invention is further related to lubricating oil compositions comprising poly(meth)acrylate copolymers containing alkyl(meth) acrylate comonomer with branched C17 alkyl group as viscosity index improving component. 115.-. (canceled)16. A poly(meth)acrylate copolymer that is obtained by polymerizing a mixture comprising:(A) C17 alkyl (meth)acrylate, where C17 alkyl chain is branched with a mean degree of branching between 2.0 and 4.0,(B) methyl methacrylate and/or methyl acrylate, and(C) alkyl methacrylate and/or alkyl acrylate with a linear or branched C2 to C30 alkyl chain.17. The copolymer of claim 16 , wherein the C17 alkyl chain is branched with a mean degree of branching between 2.8 and 3.7.18. The copolymer of claim 16 , wherein the copolymer has a weight average molecular weight Mof from 10 claim 16 ,000 to 800 claim 16 ,000 determined by gel permeation chromatography according to DIN 55672-1.19. The copolymer of claim 16 , wherein the amount of comonomer (A) is from 5 to 80 wt.-% claim 16 , based on the total weight of the poly(meth)acrylate copolymer.20. The copolymer of claim 16 , wherein the amount of comonomer (B) is from 5 to 40 wt.-% claim 16 , based on the total weight of the poly(meth)acrylate copolymer.21. The copolymer of claim 16 , wherein the amount of comonomer (C) is from 15 to 80 wt.-% claim 16 , based on the total weight of the poly(meth)acrylate copolymer.22. The copolymer of claim 16 , wherein the linear or branched C2 to C30 alkyl chain is selected from the group consisting of ethyl claim 16 , n-propyl claim 16 , iso-propyl claim 16 , n-butyl claim 16 , iso-butyl claim 16 , sec-butyl claim 16 , tert-butyl claim 16 , pentyl claim 16 , hexyl claim 16 , heptyl claim 16 , octyl claim 16 , 2-ethylhexyl claim 16 , 2-propyl heptyl claim 16 , nonyl claim 16 , decyl claim 16 , stearyl claim 16 , ...

NOVEL HYPERBRANCHED POLYESTERS AND THEIR USE AS WAX INHIBITOR, AS POUR POINT DEPRESSANT, AS LUBRICANT OR IN LUBRICATING OILS

The invention relates to a method for the preparation of a hyperbranched polyester mixture obtainable by reacting a hydroxyl group containing carboxylic acid (B) with at least one carboxylic acid group and at least two hydroxyl groups with a diol (C) having a molecular weight of more than 100 g/mol, optionally in the presence of at least one further reactant, wherein the at least one further reactant is a polyol (A) having at least three hydroxyl groups under a reaction condition allowing ester and ether formation; and reacting the mixture resulting from step (a) with a hydrophobic carboxylic acid (D) resulting in the hyperbranched polyester mixture. The invention further relates to said hyperbranched polyester mixture and the use as wax inhibitor, as pour point depressant, as lubricant or in lubricating oils. 116.-. (canceled)17. A method for the preparation of a hyperbranched polyester mixture obtainable by(a) reacting a hydroxyl group containing carboxylic acid (B) with at least one carboxylic acid group and at least two hydroxyl groups with a diol (C) having a molecular weight of more than 100 g/mol, in the presence of at least one further reactant, wherein the at least one further reactant is a polyol (A) having at least three hydroxyl groups under a reaction condition allowing ester and ether formation; and(b) reacting the mixture resulting from step (a) with a hydrophobic carboxylic acid (D) or an activated form thereof, wherein at least 30% of terminal OH groups are converted into hydrophobically modified groups resulting in the hyperbranched polyester mixture.18. The method of claim 17 , wherein the reaction condition in step (a) comprises a reaction temperature of more than 80° C.19. The method of claim 17 , wherein the reaction condition in step (a) comprises acidic conditions.20. The method of claim 17 , wherein the reaction condition in step (a) comprises a reaction temperature of more than 140° C. and is carried out in the presence of an acid.21. The ...

FLUORINATED POLYACRYLATE ANTIFOAM COMPONENTS FOR LUBRICATING COMPOSITIONS

There is disclosed an antifoam component for a mechanical device which includes a fluorinated poly(acrylate) copolymer. The antifoam component has improved foam performance and thermal stability in finished fluids, such as driveline fluids. 1. A lubricating composition , comprising:a) an oil of lubricating viscosity selected from the group consisting of a Group III oil, a Group IV oil, a Group V oil, or mixtures thereof; andb) an antifoam component comprising a poly(acrylate) copolymer including:{'sub': 4', '8, '(i) from about 50 wt % up to about 90 wt % of an acrylate monomer having Cto Calkyl esters of acrylic acid;'}{'sub': 2', '3, '(ii) from about 10 wt % up to about 35 wt % of an acrylate comonomer having Cto Calkyl esters of acrylic acid; and'}(iii) from about 1.0 wt % up to 20 wt % of a fluorinated acrylate monomer;{'sub': 'w', 'the antifoam component having a Mof at least 45,000 Daltons.'}2. The lubricating composition of claim 1 , wherein the acrylate monomer (i) is present in an amount of about 54 wt % claim 1 , or 72 wt % claim 1 , and the acrylate comonomer (ii) is present in an amount of about 31 wt % or 23 wt %.3. The lubricating composition of claim 1 , wherein the acrylate monomer (i) comprises 2-ethylhexyl acrylate.4. The lubricating composition of claim 1 , wherein the comonomer (ii) comprises ethyl acrylate or propyl acrylate.5. The lubricating composition of claim 1 , wherein the acrylate monomer (i) is 2-ethylhexyl acrylate and the acrylate comonomer (ii) is ethyl acrylate.6. The lubricating composition of claim 1 , wherein the fluorinated acrylate comonomer is branched or linear.7. The lubricating composition of claim 1 , wherein the fluorinated acrylate monomer is selected from the group consisting of 2 claim 1 ,2 claim 1 ,2-trifluoroethyl acrylate claim 1 , 1 claim 1 ,1 claim 1 ,1 claim 1 ,3 claim 1 ,3 claim 1 ,-hexafluoroisopropyl acrylate claim 1 , octafluoropentylmethacrylate claim 1 , heptadecafluoroundecyl acrylate and tridecafluorooctyl ...

Lubricating grease composition

The invention provides a grease composition containing a thickener and a base oil, wherein the base oil contains (a) a hydrocarbon oil extracted from Botryococcus braunii and/or (b) a hydrocarbon oil obtainable by hydrogenating the hydrocarbon oil (a).

Phosphorylated Dispersants in Fluids for Electric Vehicles

The present disclosure relates to a lubricating fluid for an electric motor system and a method of lubricating gears and cooling a motor in an electric motor system. In particular, the disclosed technology relates to a lubricating fluid, for use in electric motor vehicle, comprising an oil of lubricating viscosity and at least one phosphorylated dispersant exhibiting increased resistivity after aging. 1. A lubricating composition for use in an electric vehicle comprising:at least 95 weight percent of a lubricating base oil composition, the lubricating base oil composition including base oil selected from API Group III base oils or blends of Group III base oils with Group II, Group V base oils or mixtures thereof;a phosphorylated succinimide dispersant containing 2 wt % to 3.5 wt % phosphorus, the phosphorylated succinimide dispersant providing 650 ppm or less phosphorus to the lubricating composition;the lubricating composition having 700 ppm or less total phosphorus and the phosphorylated succinimide dispersant provides at least 70% of the total phosphorus; andwherein the lubricating composition has a kinematic viscosity from 3 cSt to 6.5 cSt at 100° C. and has a resistivity of at least 50 M Ω·m, as measured according to ASTM D2624-15 using the lubricating composition at 1.5 volts and at 30° C., after the fluid has been aged according to JIS K2514-1 at 150° C.;wherein if the lubricating base oil composition comprises API Group V base oil, the API Group V base oil is present in an amount up to 15 wt % based on the total lubricating composition;wherein if the lubricating base oil composition comprises API Group II base oil, the API Group II is present in an amount up to 80 wt % base on the total lubricating composition.2. The lubricating composition of claim 1 , wherein the phosphorylated succinimide dispersant is a first dispersant and wherein the composition further comprises a second dispersant containing 0.2 wt % to 0.4 wt % phosphorus claim 1 , the second ...

ELECTRORHEOLOGICAL FLUID

The present invention provides an electrorheological fluid, which includes a dielectric particle, a conductor particle and insulating oil, and the dielectric particle is evenly dispersed in the insulating oil; wherein the conductor particle is evenly dispersed in the insulating oil or inlaid in an interior and on a surface of the dielectric particle. The electrorheological fluid has the advantages of high shear stress, long service life, good temperature stability and small leakage current. 1. An electrorheological fluid , comprising a dielectric particle , a conductor particle and insulating oil , wherein the dielectric particle is evenly dispersed in the insulating oil , and the conductor particle is evenly dispersed in the insulating oil or inlaid in an interior and on a surface of the dielectric particle.2. The electrorheological fluid according to claim 1 , wherein the dielectric particle has a dielectric constant greater than 10 and a resistivity greater than 10 Ω·m.3. The electrorheological fluid according to claim 2 , wherein the dielectric particle is selected from one or more of TiO claim 2 , CaTiO claim 2 , BaTiO claim 2 , SrTiOand LaTiO.4. The electrorheological fluid according to claim 1 , wherein when a temperature is less than 20° C. claim 1 , the conductor particle is a solid with a resistivity less than 10Ω·m claim 1 , and the conductor particle is selected from one or more of metal claim 1 , carbon and a conductive organic matter.5. The electrorheological fluid according to claim 4 , wherein the metal is one or more of Ag claim 4 , Al claim 4 , Au claim 4 , Cu claim 4 , Fe claim 4 , Hf claim 4 , In claim 4 , Nd claim 4 , Ni claim 4 , Pd claim 4 , Pt claim 4 , Rh claim 4 , Ru claim 4 , Sm claim 4 , Sn claim 4 , Ti claim 4 , V claim 4 , Y and Zr;the carbon is one or more of amorphous carbon, graphite, graphene and reduced graphene oxide; andthe conductive organic matter is one or more of polyacetylene, polythiophene, polypyrrole, polyaniline, ...

COMPOSITIONS OF POLYMER COMPOSITES FOR EFFLUENTS DELIVERY AND APPLICATIONS THEREOF

Coating compositions, coatings, and coated articles are provided exhibiting drag-reducing properties. The drag reduction can lead to improved flow, e.g. an improved measure of slip length, over both laminar and turbulent flow conditions, e.g. for Reynolds numbers less than 2,000 to as much as about 500,000. The coating compositions include abase matrix and an effluent polymer dispersed in the base resin in such a way that, when an exposed surface of the drag-reducing coating is exposed to an aqueous medium, the effluent polymer migrates to the exposed surface of the drag-reducing coating and into the aqueous medium at or near the exposed surface to create a diluted effluent polymer solution in the aqueous medium at or near the exposed surface; wherein the diluted effluent polymer solution reduces a drag of the surface moving through the aqueous medium. 1. A composite composition capable of curing to form a drag-reducing coating on a surface , the composite composition comprising:a base resin composition capable of curing to form a coating on the surface; andan effluent polymer dispersed in the base resin in such a way that, when an exposed surface of the drag-reducing coating is exposed to an aqueous medium, the effluent polymer migrates to the exposed surface of the drag-reducing coating and into the aqueous medium at or near the exposed surface to create a diluted effluent polymer solution in the aqueous medium at or near the exposed surface;wherein the diluted effluent polymer solution reduces a drag of the surface moving through the aqueous medium.2. The composite composition of claim 1 , wherein the base resin composition comprises (i) a curable thermoset or thermoplastic polymer resin and (ii) polymerizable monomers;wherein upon curing the polymerizable monomers polymerize inside the thermoset or thermoplastic polymer to form an interpenetrating polymer network; andwherein the effluent polymer is diffused within the interpenetrating polymer network and swells ...

NOVEL FLUORINATED POLYACRYLATES ANTIFOAMS IN ULTRA-LOW VISCOSITY (<5 CST) FINISHED FLUIDS

There is disclosed an antifoam component for a mechanical device which includes a poly(acrylate) copolymer. The antifoam component has improved foam performance in finished fluids utilizing dibutyl hydrogen phosphite compounds, such as driveline fluids. A lubricating composition comprising a) at least one oil of lubricating viscosity; and b) an antifoam component comprising a poly(acrylate) copolymer. The poly(acrylate) copolymer, b) may include (i) from about 30 wt % up to about 99 wt % of a (meth)acrylate monomer having Cto Calkyl esters of (meth)acrylic acid; and (ii) from about 1 wt % up to about 70 wt % of a fluorinated (meth)acrylate monomer. 1. A lubricating composition comprising:a) at least one oil of lubricating viscosity; and [{'sub': 1', '4, '(i) from about 40 wt % up to about 80 wt % of a (meth)acrylate monomer having Cto Calkyl esters of (meth)acrylic acid; and'}, '(ii) from about 20 wt % up to about 60 wt % of a fluorinated (meth)acrylate monomer;', {'sub': 'w', 'the antifoam component having a Mof at least 1,000 Daltons.'}], 'b) an antifoam component comprising a poly(acrylate) copolymer including2. The lubricating composition of claim 1 , wherein the (meth)acrylate monomer has Cto Calkyl esters of (meth)acrylic acid.3. A lubricating composition comprising:a) at least one oil of lubricating viscosity; and [{'sub': 1', '3, '(i) from about 20 wt % up to about 55 wt % of a (meth)acrylate monomer having Cto Calkyl esters of (meth)acrylic acid; and'}, '(ii) from about 5 wt % up to about 50 wt % of a fluorinated (meth)acrylate monomer; and', {'sub': 4', '12, '(iii) from about 20 wt % up to about 75 wt % of a (meth)acrylate comonomer having Cto Calkyl esters of (meth)acrylic acid;'}], 'b) an antifoam component comprising a poly(acrylate) copolymer including{'sub': 'w', 'the antifoam component having a Mof at least 1,000 Daltons.'}4. (canceled)5. The lubricating composition of or claim 1 , wherein the at least one oil of lubricating viscosity is a Group I ...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM

The fluorine-containing ether compound is represented by the following formula (1): R-R—CH—R—CH—R. In the formula (1), Ris represented by the following formula (2), Ris represented by the following formula (3), Ris a perfluoropolyether chain, and Ris an organic end group different from R-R- and contains two or three polar groups, wherein each polar group is bonded to a different carbon atom, and the carbon atoms to which the polar groups are bonded are bonded to one another via a linking group containing a carbon atom to which the polar group is not bonded. In the formula (2), r is 1 to 3. In the formula (3), w is 2 or 3. 2. The fluorine-containing ether compound according to claim 1 , wherein all the polar groups of Rin the formula (1) are hydroxyl groups.7. The fluorine-containing ether compound according to claim 1 , wherein r is 2.8. The fluorine-containing ether compound according to claim 1 , wherein a number average molecular weight is in the range of 500 to 10000.9. A lubricant for magnetic recording media claim 1 , comprising the fluorine-containing ether compound according to .10. A magnetic recording medium in which at least a magnetic layer claim 1 , a protective layer claim 1 , and a lubricant layer are sequentially provided on a substrate claim 1 , wherein the lubricant layer contains the fluorine-containing ether compound according to .11. The magnetic recording medium according to claim 10 , wherein an average film thickness of the lubricant layer is 0.5 nm to 2 nm. The present invention relates to a fluorine-containing ether compound suitable for use as a lubricant for magnetic recording media, a lubricant for magnetic recording media containing the same, and a magnetic recording medium.This application claims priority under Japanese Patent Application No. 2018-170365 filed Sep. 12, 2018, the contents of which are incorporated herein by reference.In recent years, as information processing capacity increases, various information recording ...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM

The fluorine-containing ether compound is represented by the following formula (1): R—R—CH—R—CH—R. In the formula (1), Ris represented by the following formula (2), Ris represented by the following formula (3), Ris a perfluoropolyether chain, and Ris an organic end group different from R—R— and contains two or three polar groups, wherein each polar group is bonded to a different carbon atom, and the carbon atoms to which the polar groups are bonded are bonded to one another via a linking group containing a carbon atom to which the polar group is not bonded. In the formula (2), Ris an alkoxy group selected from the group consisting of a methoxy, an ethoxy and a propoxy group. In the formula (3), w is 2 or 3. 2. The fluorine-containing ether compound according to claim 1 , wherein all the polar groups of Rin the formula (1) are hydroxyl groups.7. The fluorine-containing ether compound according to claim 1 , wherein Ris a methoxy group.8. The fluorine-containing ether compound according to claim 1 , wherein a number average molecular weight is in the range of 500 to 10000.9. A lubricant for magnetic recording media claim 1 , comprising the fluorine-containing ether compound according to .10. A magnetic recording medium in which at least a magnetic layer claim 1 , a protective layer claim 1 , and a lubricant layer are sequentially provided on a substrate claim 1 , wherein the lubricant layer contains the fluorine-containing ether compound according to .11. The magnetic recording medium according to claim 10 , wherein an average film thickness of the lubricant layer is 0.5 nm to 2 nm. The present invention relates to a fluorine-containing ether compound suitable for use as a lubricant for magnetic recording media, a lubricant for magnetic recording media containing the same, and a magnetic recording medium.This application claims priority under Japanese Patent Application No. 2018-170364 filed Sep. 12, 2018, the contents of which are incorporated herein by reference.In ...

IONIC PERFLUOROPOLYETHER LUBRICANT

An ionic lubricant includes a single lubricant compound having a perfluoropolyether main chain, wherein each end of the perfluoropolyether main chain is terminated by an end group, and at least one of the end groups includes an ionic bond and at least one functional group. The ionic perfluoropolyether lubricant has unique characteristics that allows its ultra-thin and uniform distribution over a protective overcoat layer of a magnetic recording medium, while at the same time providing its molecules with strong adhesion power to the protective overcoat layer of the magnetic recording medium compared to existing lubricants, so as to provide shorter magnetic spacing between the magnetic recording medium and the magnetic head, and enable longer operation hours for the magnetic recording medium. 1. An ionic lubricant , comprising a single lubricant compound having a perfluoropolyether main chain ,wherein each end of the perfluoropolyether main chain is terminated by an end group, and at least one of the end groups comprises an ionic bond and at least one functional group.2. The ionic lubricant according to claim 1 , wherein the ionic bond is between a carboxylic acid group and a basic amino group.3. The ionic lubricant according to claim 1 , wherein the end group comprises a hydrocarbon chain.4. The ionic lubricant according to claim 3 , wherein the end group comprises from 3 to 6 carbon atoms.5. The ionic lubricant according to claim 1 , wherein the end group comprises a fluorocarbon chain.6. The ionic lubricant according to claim 5 , wherein the end group comprises from 3 to 6 carbon atoms.7. The ionic lubricant according to claim 1 , wherein the functional group is a hydroxyl group.8. The ionic lubricant according to claim 1 , wherein the functional group is a phenyl group.9. The ionic lubricant according to claim 1 , wherein the ionic bond is at least two chemical bonds from the end of the perfluoropolyether main chain.12. A magnetic recording medium claim 1 , ...

GREASE COMPOSITION FOR RESIN LUBRICATION AND SLIDING MEMBER HAVING SLIDING SURFACE MADE OF RESIN

The invention provides a grease composition for lubrication of a sliding surface made of resin, including a fluorine-based base oil and a synthetic hydrocarbon oil as a base oil; a fluorine-based thickener, and a lithium soap thickener or a lithium complex soap thickener as a thickener; and an extreme pressure additive as an additive. The invention also provides a sliding member including a sliding surface made of a resin wherein the grease composition for lubrication is applied to the sliding surface made of a resin. 1. A grease composition for lubrication of a sliding surface made of a resin , comprising:a fluorine-based base oil;a synthetic hydrocarbon oil;a fluorine-based thickener;a lithium soap thickener or a lithium complex soap thickener; andan extreme pressure additive,{'sup': '2', 'wherein the synthetic hydrocarbon oil has a kinetic viscosity at 40° C. of 30 to 220 mm/s.'}2. The grease composition according to claim 1 , wherein the extreme pressure additive is at least one selected from the group consisting of a phosphorus extreme pressure additive and a macromolecular ester extreme pressure additive.3. The grease composition according to claim 1 , wherein a worked penetration is in the range of 265 to 340.4. A sliding member comprising a sliding surface made of a resin wherein the grease composition according to is applied to the sliding surface.5. The sliding member according to claim 4 , wherein the sliding member is a sliding switch.6. The sliding member according to claim 4 , wherein the sliding member is a gear device. This application is based on Japanese Patent Application (No. 2018-141700) filed on Jul. 27, 2018, the contents of which are incorporated herein by reference.The present invention relates to a grease composition for lubrication of a sliding surface made of resin and a sliding member having a sliding surface made of resin.In JP-A-2016-139589, a sliding switch (resin sliding member) for improving waterproof property is proposed.When a ...

NATURAL OIL BASED 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 comprising one or more of (i) one or more natural oil derivatives, (ii) one or more hydrogenated metathesized natural oils and/or natural oil derivatives, (iii) one or more amidated metathesized natural oils and/or natural oil derivatives, (iv) one or more, or two or more, carboxylic acids and/or derivatives thereof, and (v) 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. 1. A grease composition comprising:(a) from 50 to 99 weight percent of a lubricating base oil,(b) from 1 to 30 weight percent of a thickener component comprising one or more of (i) one or more natural oil derivatives, (ii) one or more hydrogenated metathesized natural oils or a natural oil derivative thereof, comprising a hydrogenated metathesized soybean oil or a hydrogenated metathesized soybean oil based wax, (iii) one or more carboxylic acids and/or derivatives thereof, and (v) one or more of a metal base compound; and(c) from 1 to 15 weight percent of one or more optional additives.2. The grease composition of claim 1 , wherein the lubricating base oil comprises a mineral oil claim 1 , a synthetic oil claim 1 , a natural oil claim 1 , or a natural oil derivative claim 1 , individually or in combinations thereof.3. The grease composition of claim 1 , wherein the natural oil derivative is a hydrogenated natural oil selected from the group consisting of hydrogenated canola oil claim 1 , hydrogenated rapeseed oil claim 1 , hydrogenated coconut oil claim 1 , hydrogenated corn oil claim 1 , hydrogenated cottonseed oil claim 1 , hydrogenated olive oil claim 1 , hydrogenated palm oil claim 1 , hydrogenated peanut oil claim 1 , hydrogenated safflower oil claim 1 , hydrogenated sesame oil claim 1 , hydrogenated soybean oil claim 1 , ...

LUBRICATING ENGINE OIL FOR IMPROVED WEAR PROTECTION AND FUEL EFFICIENCY

Provided are lubricating engine oils including a lubricating oil base stock as a major component having a base oil viscosity at 100 deg. C. ranging from 4.5 to 7.5 cSt, and a carboxylic functionalized polymer dispersant with aromatic amine functionality, as a minor component, wherein the lubricating engine oils have a cold crank simulator viscosity at −30 deg. C. of less than 8500 mPa·s. The lubricating engine oils may provide improved engine wear protection at equivalent fuel efficiency or improved fuel efficiency at equivalent engine wear protection compared to a lubricating engine oil containing a dispersant as a minor component other than the carboxylic functionalized polymer with aromatic amine functionality. Methods of making the lubricating engine oil are also provided. The lubricating engine oils are useful in internal combustion engines including direct injection, gasoline and diesel engines. 1. A multi-grade lubricating engine oil comprising a lubricating oil base stock as a major component , and a carboxylic functionalized polymer dispersant with aromatic amine functionality , as a minor component , wherein the lubricating engine oil base oil viscosity at 100 deg. C. ranges from 4.5 to 7.5 cSt , wherein the lubricating engine oil has a cold crank simulator viscosity at −30 deg. C. of less than 8500 mPa·s and wherein fuel efficiency as measured by HTHS (ASTM D4683) and/or engine wear protection as measured by HFRR wear scar (ISO Provisional Standard , TC22/SC7N959 , 1995) are improved or maintained as compared to fuel efficiency and engine wear protection achieved using a multi-grade lubricating engine oil containing a dispersant as a minor component other than the carboxylic functionalized polymer with aromatic amine functionality.2. The oil of claim 1 , wherein the lubricating oil base stock is selected from the group consisting of a Group I base stock claim 1 , a Group II base stock claim 1 , a Group III base stock claim 1 , a Group IV base stock claim ...

GREASE AND METHOD FOR MANUFACTURING GREASE

A grease of the invention contains a base oil and a thickener, where, when the volumetric-based arithmetic mean particle size of particles contained in the grease measured using laser diffraction/scattering method is A (unit: μm), a formula A≦3 (1) is satisfied. 1: A grease , comprising:a base oil; anda thickener, {'br': None, 'i': 'A≦', '3\u2003\u2003(1).'}, 'wherein A (unit: μm) representing a volumetric-based arithmetic mean particle size of particles comprised in the grease calculated using laser diffraction/scattering method satisfies a formula (1)2: The grease according to claim 1 , wherein the thickener is one of urea claim 1 , a thickener for a simple soap grease claim 1 , and a thickener for a complex grease.3: The grease according to claim 2 , wherein the thickener is one of a calcium soap claim 2 , a lithium soap claim 2 , a sodium soap claim 2 , a calcium complex soap claim 2 , a lithium complex soap claim 2 , and a calcium sulfonate complex soap.4: The grease according to claim 2 , wherein;the thickener is urea,the urea is a reaction product of a monoamine and a diisocyanate, andthe monoamine is composed of a single amine compound or is a mixture of a plurality of amine compounds.5: The grease according to claim 1 , wherein the grease is prepared by mixing the thickener or a precursor of the thickener in the base oil to provide a mixture solution claim 1 , and applying a minimum shear rate of 10sor more to the mixture solution.6: The grease according to claim 1 , wherein the grease is prepared by mixing a first base oil comprising a first thickener precursor and a second base oil comprising a second thickener precursor to prepare a mixture solution claim 1 , and applying a minimum shear rate of 10sor more to the mixture solution.7: A manufacturing method of a grease claim 1 , the method comprising:{'sup': 2', '−1, 'applying a minimum shear rate of 10sor more to at least one of a first base oil comprising a first thickener precursor and a second base oil ...

LUBRICANT FOR A TWO-STROKE MARINE ENGINE

Relating to the field of lubricant, more particularly relates to lubricant for marine engine, notably for a two-stroke marine engine. More particularly, relates to a lubricant for a marine engine including at least one lubricant base oil and at least one fatty amine. 115.-. (canceled)17. Lubricant composition according to claim 16 , wherein the polyalkylamine composition comprises at least 4% w/w of branched compounds of formula (I) or (II) claim 16 , with regards to the total weight of polyalkylamine compounds (I) and (II) in the composition claim 16 , branched compound signifying that:in formula (I) at least one of n or z are superior or equal to 1,in formula (II) n is superior or equal to 1.18. Lubricant composition according to claim 16 , wherein the polyalkylamine composition comprises at least 5% by weight claim 16 , with regards to the total weight of compounds (I) and (II) claim 16 , of products of formulae (I) and (II) with a linear structure claim 16 , linear meaning n is 0 in formulae (I) and (II) and z is 0 in formula (I).19. Lubricant composition according to claim 16 , wherein the polyalkylamine composition further comprises derivatives of polyalkylamines of formula (I) or (II) claim 16 , wherein said derivatives are alkoxylates which are optionally methylated.20. Lubricant composition according to claim 16 , wherein the polyalkylamine composition further comprises derivatives of polyalkylamines of formula (I) or (II) claim 16 , wherein said derivatives are methylated.21. Lubricant composition according to claim 16 , wherein the polyalkylamine composition has a BN measured according to standard ASTM D-2896 from 150 to 350 milligrams of potash per gram of amine compound.22. Lubricant composition according to claim 16 , having a BN claim 16 , measured according to standard ASTM D-2896 claim 16 , greater than or equal to 70 milligrams of potash per gram of the lubricant composition.23. Lubricant composition according to claim 22 , wherein the percentage ...

Novel formulation for lubrication of hyper compressors providing improved pumpability under high-pressure conditions

The present disclosure provides a lubricating composition with improved high-pressure pumpability and/or reduced viscosity at high pressures, as well as method of making and using the same. The lubricating composition includes a white oil and a polymeric thickener present in an amount equal to or less than about 40 wt % of the lubricating composition. The white oil has a kinematic viscosity of at least one of: about 80 mm2/sec to about 120 mm2/sec at 40° C. and/or about 9.5 mm2/sec to about 14 mm2/sec at 100° C.

LUBRICATING OIL COMPOSITION

The present invention relates to a lubricating oil composition containing a base oil (A) and a viscosity index improver (B) such that in X-ray small-angle scattering spectra obtained through measurement at 40° C. and 100° C., a ratio [Δ|α(40)|/Δ|α(100)|] between Δ|α(40)| and Δ|α(100)|, each of which is an absolute value of a slope of a straight line calculated in a range of the scattering vector q as the x axis of from 0.1 nm to 1 nm by the least-squares method, is 1.5 or more. 1. A lubricating oil composition comprising a base oil (A) and a viscosity index improver (B) in which a ratio [Δ|α(40)|/Δ|α(100)|] between Δ|α(40)| and Δ|α(100)| as calculated through the following operations (i) to (iii) is 1.5 or more:{'sup': '−1', 'Operation (i): a sample oil comprising the viscosity index improver (B) dissolved in a mineral oil is prepared, and X-ray small-angle scattering measurement is performed under a temperature condition at 40° C. to acquire X-ray small-angle scattering spectra (x axis: scattering vector q (nm), y axis: common logarithm log (I) of scattering intensity I) at 40° C. and 100° C., respectively;'}{'sup': −1', '−1, 'Operation (ii): in the X-ray small-angle scattering spectrum at 40° C. obtained in Operation (i), an absolute value Δ|α(40)| of a slope of a straight line is calculated in a range of the scattering vector q as the x axis of from 0.1 nmto 1 nmby the least-squares method; and'}{'sup': −1', '−1, 'Operation (iii): in the X-ray small-angle scattering spectrum at 100° C. obtained in Operation (i), an absolute value Δ|═(100)| of a slope of a straight line is calculated in a range of the scattering vector q as the x axis of from 0.1 nmto 1 nmby the least-squares method.'}2. The lubricating oil composition according to claim 1 , wherein the base oil (A) comprises a mineral oil.3. The lubricating oil composition according to claim 2 , wherein the mineral oil is a mineral oil classified into Group 2 or Group 3 of the base stock categories of the API ( ...

Use Of Polytetrahydrofurans In Lubricating Oil Compositions

An axle lubricating oil composition includes a polyalphaolefin having a kinematic viscosity at 100° C. of from 2 to 40 cSt when measured in accordance with ASTM D445. The axle lubricating oil composition also includes an alkoxylated polytetrahydrofuran of general formula (II). The alkoxylated polytetrahydrofuran of general formula (II) is present in an amount of from 10 to 40 parts by weight based on 100 parts by weight of the axle lubricating oil composition. 2. The axle lubricating oil composition according to wherein said polyalphaolefin has a kinematic viscosity at 100° C. of from 2 to 10 cSt when measured in accordance with ASTM D445 claim 1 , with said polyalphaolefin being present in an amount of from 40 to 50 parts by weight based on 100 parts by weight of said axle lubricating oil composition.3. The axle lubricating oil composition according to further comprising a carboxylic acid ester in an amount of from 5 to 20 parts by weight based on 100 parts by weight of said axle lubricating oil composition.4. The axle lubricating oil composition according to wherein k is an integer in the range of ≧3 to ≦25.5. The axle lubricating oil composition according to wherein k is an integer in the range of ≧5 to ≦20 claim 1 , and wherein (m+m′) is in the range of ≧3 to ≦65.6. The axle lubricating oil composition according to claim 1 , wherein the alkoxylated polytetrahydrofuran has a weight average molecular weight in the range of 4000 to 7000 g/mol determined according to DIN 55672-1 (polystyrene calibration standard) claim 1 , and wherein the ratio of (m+m′) to k is in the range of 0.3:1 to 6:1.7. The axle lubricating oil composition according to having a KRL Shear loss after 200 hours of less than 8% when measured in accordance with CEC L-45-A-99.8. The axle lubricating oil composition according to wherein Rdenotes an unsubstituted claim 1 , linear alkyl radical having 6 claim 1 , 7 claim 1 , 8 claim 1 , 9 claim 1 , 10 claim 1 , 11 claim 1 , 12 claim 1 , 13 claim 1 , ...

GREASE COMPOSITION

A grease composition comprising a polyalphaolefin and a thickener which is a fatty acid salt of calcium is disclosed. The composition is suitable for use at a seal-metal interface in a sealed bearing. 1. A grease composition comprising from 40 to 90 wt % of a first base oil component which is a polyalphaolefin and having a kinematic viscosity at 100° C. of between 1 and 5 mm/s , wherein the weight percentage is based upon the weight of the grease composition , and comprising a thickener which is a C13-C21 fatty acid salt of calcium.2. A grease composition according to claim 1 , wherein the amount of thickener is from 2 to 18 wt % claim 1 , based upon the weight of the grease composition.3. A method comprising:{'sup': '2', 'applying a grease composition at a seal-metal interface in a sealed bearing, wherein the grease composition comprises from 40 to 90 wt % of a first base oil component which is a polyalphaolefin and has a kinematic viscosity at 100° C. of between 1 and 5 mm/s, wherein the weight percentage is based upon the weight of the grease composition, and comprises a thickener which is a C13-C21 fatty acid salt of calcium.'}4. A method according to claim 3 , wherein the amount of thickener is from 2 to 18 wt % claim 3 , based upon the weight of the grease composition.5. A grease composition according to claim 1 , wherein the amount of thickener is from 2 to 14 wt % claim 1 , based upon the weight of the grease composition.6. A method according to wherein the amount of thickener is from 2 to 14 wt % claim 3 , based upon the weight of the grease composition. This invention relates to a grease composition and to use of the grease composition in a sealed bearing.Sealed bearings are used in many different types of machinery. The seals prevent the ingress of dirt and water that could damage the bearing and impair the functioning of the machinery. Typical seal materials include acrylonitrile-butadiene rubber (NBR) and fluoroelastomers (FKM). A grease is provided at ...

GEAR OIL COMPOSITION

The presently claimed invention relates to a gear oil composition having a kinematic viscosity at 40° C. in the range of ≥68 to ≤1000 cSt when measured in accordance with ASTM D445. The gear oil composition is useful as a lubricant in a gear box, especially in a wind turbine gear box.

ELECTRIC DISCHARGE MACHINING OIL COMPOSITION, METHOD FOR MANUFACTURING ELECTRIC DISCHARGE MACHINING OIL COMPOSITION, AND ELECTRIC DISCHARGE MACHINING METHOD

The present invention relates to an electric discharge machining oil composition and an electric discharge machining method capable of enhancing machining speed in electric discharge machining. This electric discharge machining oil composition is characterized by including (A) a base oil, and (B) one or more types of petroleum resin selected from hydrogenated products of copolymers of dicyclopentadiene and an aromatic compound and having a softening point of 75 to 185° C. and a mean molecular weight (Mn) of 670 to 3000, wherein the kinematic viscosity of the electric discharge machining oil composition at 40° C. is 1 to 10 mm/s. Further, the electric discharge machining method is characterized by employing said electric discharge machining oil composition, and includes interposing the electric discharge machining oil composition between a workpiece and an electrode, and generating an electric discharge between the workpiece and the electrode in this state to machine the workpiece. 1: An electric discharge machining oil composition , comprising:a base oil; and{'sup': '2', 'a petroleum resin, which is hydrogenated product of a copolymer of dicyclopentadiene and an aromatic compound, and which has a softening point of from 75 to 185° C. and a number-average molecular weight (Mn) of from 670 to 3000, wherein a kinetic viscosity of the electric discharge machining oil composition at 40° C. is from 1 to 10 mm/s.'}2: The electric discharge machining oil composition according to claim 1 , wherein a content of an aromatic compound unit in the petroleum resin is from 0 to 50% by mass based on the aromatic compound.3: The electric discharge machining oil composition according to claim 1 , wherein the hydrogenated product of the copolymer of dicyclopentadiene and the aromatic compound is a partially hydrogenated product or a completely hydrogenated product.4: The electric discharge machining oil composition according to claim 1 , wherein the hydrogenated product of the ...

LUBRICATING GREASE COMPOSITION

The invention provides a lubricating grease composition containing the following components (a) and (b): (a) an ionic liquid having as an anion bis(trifluoromethylsulfonyl)imide; and (b) as a thickener a diurea compound of formula (1): R1NH-CO-NH-R2-NH-CO-NH-R3 (1) wherein R2 is an aromatic hydrocarbon group having 6 to 15 carbon atoms; and R1 and R3, which may be the same or different are each an aromatic hydrocarbon group having 6 to 12 carbon atoms, an alicyclic hydrocarbon group having 6 to 12 carbon atoms or a straight-chain alkyl group having 8 to 20 carbon atoms, with the groups represented by R1 and R3 containing the aromatic hydrocarbon group in an amount of 50 to 100 mol %. The lubricating grease composition of the invention can favorably be used under ultra-high vacuum, and under high temperatures of 200 to 300° C. 1. A lubricating grease composition comprising;(a) an ionic liquid having as an anion bis(trifluoromethylsulfonyl)imide, {'br': None, 'R1NH—CO—NH—R2—NH—CO—NH—R3\u2003\u2003(1)'}, '(b) as a thickener a diurea compound of formula (1)wherein R2 is an aromatic hydrocarbon group having 6 to 15 carbon atoms; and R1 and R3, which may be the same or different are each an aromatic hydrocarbon group having 6 to 12 carbon atoms, an alicyclic hydrocarbon group having 6 to 12 carbon atoms or a straight-chain alkyl group having 8 to 20 carbon atoms, with the groups represented by R1 and R3 comprising the aromatic hydrocarbon group in an amount of 50 to 100 mol %.2. The lubricating grease composition of claim 1 , wherein the ionic liquid (a) has 1-(2-methoxyethyl)-1-methylpyrrolidinium or 1-butyl-2 claim 1 ,3-dimethylimidazolium as a cation.3. The lubricating grease composition of claim 1 , wherein the thickener (b) is the diurea compound represented by formula (1) wherein the groups represented by R1 and R3 comprise the aromatic hydrocarbon group in an amount of 100 mol %.4. The lubricating grease composition of claim 1 , further comprising a fatty amine ...

LUBRICANT COMPOSITION, SLIDING APPARATUS, FIXING APPARATUS, AND IMAGE-FORMING APPARATUS

Provided is a lubricant composition having small shear rate dependence of its apparent viscosity. The lubricant composition includes a perfluoropolyether as a base oil, and fluorine resin particles as a thickener. The lubricant composition further includes a fluorine-containing polymer having a tetrafluoroethylene structure under a state in which the polymer is dissolved in the perfluoropolyether. 1. A lubricant composition comprising:a perfluoropolyether as a base oil; andfluorine resin particles as a thickener,wherein the lubricant composition further comprises a fluorine-containing polymer having a tetrafluoroethylene structure under a state in which the fluorine-containing polymer is dissolved in the perfluoropolyether.2. The lubricant composition according to claim 1 , wherein the fluorine-containing polymer has the tetrafluoroethylene structure and a heterocyclic structure having an oxygen atom as a heteroatom claim 1 , the fluorine-containing polymer having an atom or a group selected from the group consisting of a fluorine atom claim 1 , a perfluoroalkyl group having 1 to 3 carbon atoms claim 1 , and a perfluoroalkoxy group having 1 to 3 carbon atoms claim 1 , which is bonded to at least one carbon atom forming a ring structure in the heterocyclic structure.3. The lubricant composition according to claim 2 , wherein the heterocyclic structure is one of a fluorine-containing oxolane structure and a fluorine-containing dioxolane structure.4. The lubricant composition according to claim 3 , wherein a total sum of a mole fraction of the fluorine-containing dioxolane structure and a mole fraction of the fluorine-containing oxolane structure in the fluorine-containing polymer is from 10 mol % to 90 mol %.7. The lubricant composition according to claim 1 , wherein a mole fraction of the tetrafluoroethylene structure in the fluorine-containing polymer is from 10 mol % to 90 mol %.8. The lubricant composition according to claim 1 , wherein an amount of the fluorine- ...

GREASE COMPOSITION

Provided is a grease composition including a base oil (A) containing an alkyl naphthalene (A1) and an aliphatic diurea (B) represented by general formula (b1): 1: A grease composition comprising a base oil (A) containing an alkyl naphthalene (A1) , and an aliphatic diurea (B) represented by general formula (b1):{'br': None, 'sup': 1', '3', '2, 'R—NHCONH—R—NHCONH—R\u2003\u2003(b1)'}{'sup': 1', '2', '3, '(wherein, Rand Reach independently represent a monovalent aliphatic hydrocarbon group having 9 to 20 carbon atoms, and Rrepresents a divalent aromatic hydrocarbon group having 6 to 18 carbon atoms),'}wherein a content of the aliphatic diurea (B) is from 20 to 30% by mass based on a total amount of the grease composition.2: The grease composition according to claim 1 , which has a worked penetration at 25° C. of 220 or more.3: The grease composition according to claim 1 , wherein a kinematic viscosity at 40° C. of the base oil (A) is from 20 to 30 mm/s.4: The grease composition according to claim 1 , further comprising a poly-α-olefin in an amount of less than 10 parts by mass based on 100 parts by mass of the alkyl naphthalene (A1).5: The grease composition according to claim 1 , further comprising a mineral oil in an amount of less than 10 parts by mass based on 100 parts by mass of the alkyl naphthalene (A1).6: The grease composition according to claim 1 , further comprising a metal atom-containing compound in an amount of less than 5% by mass based on a total amount of the grease composition.7: The grease composition according to claim 1 , wherein a content of the alkyl naphthalene (A1) is from 50 to 100% by mass based on a total amount of the base oil (A).8: The grease composition according to claim 1 , which is to be used for an apparatus that is used in a clean room.9: The grease composition according to claim 1 , which is to be used for an apparatus that is used for food production. The present invention relates to a grease composition.In general, a precision ...

SOLID LUBRICANT, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

A solid lubricant containing a fatty acid metal salt and a polyethylene having an acid value is prepared. The solid lubricant is disposed so as to be applied on a surface of an image bearing member of an image forming apparatus in electrophotography, and a lubricant layer is formed on the surface of the image bearing member with the solid lubricant. 1. A solid lubricant for forming a lubricant layer on a surface of an image bearing member of an image forming apparatus in electrophotography by being applied on the surface of the image bearing member , the solid lubricant comprising:a fatty acid metal salt; anda polyethylene having an acid value.2. The solid lubricant according to claim 1 , whereinthe polyethylene having an acid value has one or both of a carboxyl group and a carboxylic acid anhydride group.3. The solid lubricant according to claim 1 , whereinthe polyethylene having an acid value has a structure of a copolymer of an acidic monomer and ethylene.4. The solid lubricant according to claim 1 , whereinthe fatty acid metal salt is zinc stearate.5. An image forming apparatus comprising:a rotatable image bearing member;a charging device for charging the image bearing member;a transfer device for transferring a toner image born on the charged image bearing member to a toner receiving article; anda lubricant applying device for applying a lubricant on a surface of the image bearing member, the lubricant applying device being disposed between the transfer device and the charging device in a rotational direction of the image bearing member, wherein [{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the solid lubricant according to ;'}, 'a lubricant applying member that has flexibility and is to be disposed so as to abut freely on the surface of the image bearing member; and', 'a lubricant supplying device for supplying the solid lubricant to the lubricant applying member., 'the lubricant applying device comprises6. An image forming method comprising:charging an ...

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.

LUBRICATING OIL COMPOSITION FOR TRANSMISSIONS

The present invention provides a lubricating oil composition for transmissions which is improved in fuel saving properties and has excellent metal fatigue prevention properties and heat resistance. The lubricating oil composition comprises (A) a mineral base oil having a 100° C. kinematic viscosity of 1.5 mm/s or higher and 3.5 mm/s or lower, a pour point of −25° C. or lower, a viscosity index of 110 or greater, a % Cof 2 or greater and 20 or less and a % Cof 3 or less, the lubricating oil composition having a 100° C. kinematic viscosity of 2.5 mm/s or higher and 3.8 mm/s or lower. 1. A lubricating oil composition for transmissions comprising (A) a mineral base oil having a 100° C. kinematic viscosity of 1.5 mm/s or higher and 3.5 mm/s or lower , a pour point of −25° C. or lower , a viscosity index of 110 or greater , a % CN of 2 or greater and 20 or less and a % CA of 3 or less ,{'sup': 2', '2, 'the lubricating oil composition having a 100° C. kinematic viscosity of 2.5 mm/s or higher and 3.8 mm/s or lower.'}2. The lubricating oil composition for transmissions according to claim 1 , wherein (A) the mineral base oil has a naphthene content of 3 percent by mass or more and 15 percent by mass or less.4. The lubricating oil composition for transmissions according to claim 3 , wherein Component (B) comprises (B-1) a poly(meth)acrylate produced by polymerizing a monomer component comprising at least the following (Ba-1) to (Bd-1):{'sup': '2', '(Ba-1) a (meth)acrylate wherein Ris an alkyl group having 1 to 4 carbon atoms: 20 to 60 percent by mass;'}(Bb-1) a (meth)acrylate wherein R2 is an alkyl group having 5 to 10 carbon atoms: 0 to 30 percent by mass;(Bc-1) a (meth)acrylate wherein R2 is an alkyl group having 11 to 18 carbon atoms: 20 to 70 percent by mass; and(Bd-1) a (meth)acrylate wherein R2 is an alkyl group having 19 to 40 carbon atoms: 5 to 50 percent by mass.5. The lubricating oil composition for transmissions according to claim 3 , wherein Component (B) ...

MACHINE ELEMENT & METHOD

A machine element having only a first component of a two-component grease, wherein the first component includes a thickener, and a second component includes a fluid lubricant, whereby the two-component grease is obtained by mixing together the first component and the second component. 1. A machine element , comprising only a first component of a two-component grease that comprises a first component including a thickener , and a second component including a fluid lubricant , whereby the two-component grease is obtained by mixing together the first component and the second components.2. The machine element claim 1 , according to claim 1 , wherein said fluid lubricant comprises at least one of the following: mineral oil claim 1 , synthetic oil claim 1 , vegetable oil claim 1 , a polyalphaolefin claim 1 , an ester claim 1 , and a polyether.3. The machine element claim 1 , according to claim 1 , wherein the thickener comprises at least one of the following: a polymeric thickener claim 1 , polypropylene claim 1 , polyethylene claim 1 , polyalkylene glycol claim 1 , polyethylene glycol claim 1 , polyolefin phenol claim 1 , lanolin claim 1 , lanoline polyethylene glycol claim 1 , polyoxyethylene lanolin claim 1 , silicon oil claim 1 , ionic soap claim 1 , urea soap claim 1 , and metal organic soap.4. The machine element claim 1 , according to claim 1 , wherein the thickener comprises at least one high molecular weight component and at least one low molecular component.5. The machine element according to claim 4 , wherein the tickener has a ratio of the at least one high molecular weight component to the at least one low molecular component of between 1:40 and 1:5.6. The machine element claim 5 , according to claim 5 , wherein at least one of the thickener high molecular weight component and the low molecular component comprises at least one of the following: a polymeric thickener claim 5 , polypropylene claim 5 , polyethylene claim 5 , polyalkylene glycol claim 5 , ...

ALKYLPHENOL DETERGENTS

The disclosed technology provides a lubricating composition comprising an oil of lubricating viscosity and a detergent comprising a polyolefin-substituted hydroxy-aromatic carboxylic acid or salt thereof, wherein the polyolefin is derived from a branched alkene having at least 4 carbon atoms and wherein the polyolefin has a number average molecular weight of 150 to 800. The invention further relates to a method of lubricating a mechanical device with the lubricant composition. 2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. The lubricating composition of claim 1 , wherein the detergent is a metal salt.10. The lubricating composition of claim 9 , wherein the metal in the salt comprises calcium.11. The lubricating composition of claim 9 , wherein the metal is overbased.12. The lubricating composition of claim 1 , wherein the detergent is free of C8 and higher unbranched alkyl chains.13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. The lubricating composition of claim 1 , wherein the polyisobutylene has a number average molecular weight of 300 to 400.18. The lubricating composition of claim 1 , wherein the alkylsalicylate is at least 0.01 wt. % of the lubricating composition.19. The lubricating composition of claim 18 , wherein the alkylsalicylate is at least 0.1 wt. %.20. The lubricating composition of claim 18 , wherein the alkylsalicylate is up to 20 wt. of the lubricating composition.21. The lubricating composition of claim 1 , wherein the oil of lubricating viscosity comprises at least one of an API Group I claim 1 , II claim 1 , III claim 1 , IV claim 1 , and V base oil.22. The lubricating composition of claim 1 , wherein the oil of lubricating viscosity is at least 10 wt. % of the lubricating composition.23. The lubricating composition of claim 22 , wherein the oil of lubricating viscosity is at least 30 wt. % of the lubricating composition.24. The lubricating composition of claim 1 , wherein the oil of ...

WAX-CONTAINING, ORGANIC THICKENED LUBRICANT POWDER

This disclosure relates to a lubricant powder composition that is made from a combination of wax, grease thickener, and additives. The lubricant powder composition exhibits low frictional, and improved mechanical stability in high temperature environments. This disclosure further relates to the use of a lubricant powder composition in a mechanical component. 1. A lubricant powder composition comprising: a wax , a grease thickener , and one or more additives; wherein the wax is in an amount of about 50 wt. % or higher in the lubricant powder composition , and the lubricant powder composition is solid at a temperature of 35° C. or is solid at a temperature lower than 35° C.2. The lubricant powder composition according to claim 1 , wherein the grease thickener is an organic thickener or an inorganic thickener.3. The lubricant powder composition according to claim 1 , wherein the wax is in an amount of about 50 wt. % to about 90 wt. % claim 1 , the grease thickener is in an amount of about 1 wt. % to about 40 wt. % claim 1 , the additive is in an amount of about 0.1 wt. % to about 32 wt. % claim 1 , in the lubricant powder composition.4. The lubricant powder composition according to claim 3 , wherein the wax is a natural wax or a synthetic wax.5. The lubricant powder composition according to claim 3 , wherein the wax is a paraffin wax.6. The lubricant powder composition according to claim 3 , wherein the grease thickener is an organic thickener.7. The lubricant powder composition according to claim 3 , wherein the additive is selected from a group consisting of anticorrosive agent or corrosion inhibitor claim 3 , an extreme pressure additive claim 3 , an antiwear agent claim 3 , a pour point depressants claim 3 , an antioxidant or oxidation inhibitor claim 3 , a rust inhibitor claim 3 , a metal deactivator claim 3 , a dispersant claim 3 , a demulsifier claim 3 , a dye or colorant/chromophoric agent claim 3 , a seal compatibility agent claim 3 , a friction modifier claim ...

GREASE COMPOSITION

The present invention provides a grease composition including a thickener and a base oil, in which the thickener is a urea compound represented by the following formula (1) 2. The grease composition according to claim 1 , wherein [{'br': None, 'sup': 10', '2', '10, 'R—NHCONH—R—NHCONH—R\u2003\u2003(1-1)'}, {'br': None, 'sup': 10', '2', '30, 'R—NHCONH—R—NHCONH—R\u2003\u2003(1-2)'}, {'br': None, 'sup': 30', '2', '30, 'R—NHCONH—R—NHCONH—R\u2003\u2003(1-3)'}, {'br': None, 'sup': 10', '2', '40, 'R—NHCONH—R—NHCONH—R\u2003\u2003(1-4)'}, {'br': None, 'sup': 40', '2', '40, 'R—NHCONH—R—NHCONH—R\u2003\u2003(1-5)'}], 'the thickener is one or more members from a urea compound represented by a formula (1-1), a urea compound represented by a formula (1-2), a urea compound represented by a formula (1-3), a urea compound represented by a formula (1-4), and a urea compound represented by a formula (1-5) belowwherein R10 represents a cyclohexyl group, R2 represents a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms, R30 represents an alkyl group having 8 to 22 carbon atoms, and R40 represents an aryl group having 6 to 18 carbon atoms.3. The grease composition according to claim 2 , wherein{'sup': 10', '10', '30, 'in the formula (1), (the number of moles of R)×100/(the number of moles of R+the number of moles of R) is 50% or more.'}4. The grease composition according to claim 1 , wherein{'sup': 4', '5, 'in the formula (2), Rand Rmay be the same or different and are each a linear or branched alkyl group having 10 to 26 carbon atoms.'}5. The grease composition according to claim 1 , wherein{'sup': 4', '5, 'in the formula (2), Rand Rmay be the same or different and are each a linear or branched alkyl group having 12 to 14 carbon atoms.'}6. The grease composition according to claim 1 , which is used for a rolling-element bearing. The present invention relates to a grease composition which is suitable for use in a rolling-element bearing, in particular a rolling-element ...

MECHANICAL SEAL FITTING SYSTEM AND METHOD

A method of installing a mechanical seal includes wrapping a sleeve around a shaft, placing the seal over the wrapped sleeve and shaft, sliding the seal along the wrapped sleeve and shaft, toward a housing, and pressing the seal into seat in the housing. The sleeve has dimensions of length at least about same as length of the shaft protruding from the housing and width at least greater than the circumference of the shaft. Thickness of the sleeve ranges from about 0.01 inches (0.254 mm) to about 0.05 inches (1.27 mm). The sleeve is formed of polyethylene terephthalate, low-density polyethylene, polyvinyl chloride, high-density polyethylene, other elastomer, other polymer, or combinations of these. The sleeve may include a lubricant. 1. A system for installing a seal on a shaft , comprising:a sleeve wrappable around the shaft, the sleeve is sufficiently strong to avoid tear and configured to guide the seal into position along the shaft.2. The device of claim 1 , wherein the sleeve has dimensions of length at least about same as length of the extended shaft and width at least greater than the circumference of the shaft.3. The device of claim 1 , wherein the sleeve has thickness in the range of about 0.01 inches (0.254 mm) to about 0.05 inches (1.27 mm).4. The device of claim 3 , wherein the sleeve has dimensions of length at least about same as length of the extended shaft and width at least greater than the circumference of the shaft.5. The device of claim 4 , wherein the sleeve is formed of PET.6. The device of claim 4 , further comprising:a lubricant laminated on the extended surface of the sleeve.7. The device of claim 6 , wherein the lubricant is selected from the group consisting of: petroleum jelly claim 6 , oil claim 6 , polytetrafluoroethylene (e.g. claim 6 , Teflon®) claim 6 , and combinations.8. A system for installing a seal on a shaft claim 6 , comprising:a sheet of sleeve material, the sheet has dimensions of length at least about same as length of the ...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM

A fluorine-containing ether compound represented by Formula (1) is provided, 1. A fluorine-containing ether compound represented by Formula (1){'br': None, 'sup': 1', '2', '3', '4, 'sub': 2', '2, 'R-R—CH—R—CH—R\u2003\u2003(1)'}{'sup': 1', '2', '1', '3', '4', '1', '2, '(in Formula (1), Ris an alkyl group that may have a substituent, Ris a divalent linking group bonded to Rvia an ethereal oxygen, Ris a perfluoropolyether chain, and Ris an end group which is different from R-Rand includes two or three polar groups, in which each of the polar groups is bonded to a different carbon atom, and the carbon atoms bonded to the polar groups are bonded to each other via a linking group containing a carbon atom not bonded to the polar groups).'}2. The fluorine-containing ether compound according to claim 1 ,{'sup': '4', 'wherein the polar groups of Rin Formula (1) are hydroxyl groups.'}6. The fluorine-containing ether compound according to claim 1 ,{'sup': '1', 'wherein Rin Formula (1) is an alkyl group in which a part or all of hydrogen atoms are substituted with halogen and an alkoxy group or with either halogen or an alkoxy group.'}8. The fluorine-containing ether compound according to claim 1 , wherein Rin Formula (1) includes three polar groups.9. The fluorine-containing ether compound according to claim 1 ,wherein a number-average molecular weight thereof is in a range of 500 to 10000.10. A lubricant for a magnetic recording medium claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the fluorine-containing ether compound according to .'}11. A magnetic recording medium claim 1 , comprising:a substrate; andat least a magnetic layer, a protective layer, and a lubricating layer in this order on the substrate,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the lubricating layer includes the fluorine-containing ether compound according to .'}12. The magnetic recording medium according to claim 11 ,wherein an average film thickness of the ...

ARTICLES HAVING LOW COEFFICIENTS OF FRICTION, METHODS OF MAKING THE SAME, AND METHODS OF USE

Briefly described, embodiments of this disclosure include articles and methods of making articles. 1. An article , comprising:a polymer matrix having a plurality of solid lubricant structures, the solid lubricant structures are chosen from: a filament, a fiber, a yarn, and a combination thereof, wherein each solid lubricant structure has a central axis down the longest dimension of the solid lubricant structure, wherein at an edge of a side of the article where the solid lubricant structure is adapted to slide along a sliding surface, an angle between the central axis of the plurality of the solid lubricant structures and a plane that is transverse with the sliding surface of the article is about 5° or more.2. The article of claim 1 , wherein the article has a coefficient of friction of about 0.3 to 0.05.3. The article of claim 1 , wherein the article has a coefficient of friction of about 0.25 to 0.05.4. The article of claim 1 , wherein the article has a coefficient of friction of about 0.2 to 0.05.5. The article of claim 1 , wherein an aspect ratio is about 5:1 or more.6. The article of claim 1 , wherein the polymer is chosen from: a polyetheretherketone (PEEK) claim 1 , a polyimide (PI) claim 1 , polyamide (PA) claim 1 , poly amide imide (PAI) claim 1 , a polyphenylene sulfide (PPS) claim 1 , polysulphone (PSU) claim 1 , polyether sulphone (PES) claim 1 , a precursor thereof claim 1 , a derivative thereof claim 1 , a homopolymer thereof claim 1 , a monomer thereof claim 1 , a copolymer thereof claim 1 , a terpolymer thereof claim 1 , and a combination thereof.7. An article claim 1 , comprising:a polymer matrix having a plurality of solid lubricant structures having an aspect ratio of about 5:1 or more, wherein each solid lubricant structure has a central axis down the longest dimension of the solid lubricant structure, wherein at an edge of a side of the article where the solid lubricant structure is adapted to slide along a sliding surface, an angle between the ...

GREASE COMPOSITION

Provided is a grease composition for a magnet clutch of an automobile, including: a base oil; and a thickener, wherein the composition contains 5% by mass or more of a sulfur content in terms of sulfur element relative to a total mass of the composition. 1. A grease composition for a magnet clutch of an automobile , comprising:a base oil; anda thickener, whereinthe composition contains 5% by mass or more of a sulfur content in terms of sulfur element relative to a total mass of the composition.2. The grease composition according to claim 1 , wherein the base oil is at least one selected from fatty acid sulfides claim 1 , sulfurized oils and fats claim 1 , and polysulfides.3. The grease composition according to claim 1 , wherein the thickener comprises a metal oxide.4. The grease composition according to claim 3 , wherein the metal oxide is silica.5. The grease composition according to claim 4 , wherein a primary particle diameter of the silica is 300 nm or less.6. The grease composition according to claim 1 , wherein the sulfur content in terms of sulfur element is 50% by mass or less relative to the total mass of the grease composition.9. The grease composition according to claim 1 , wherein the ratio of the base oil in the composition of the invention is 50 to 95% by mass relative to the total mass of the composition.10. The grease composition according to claim 1 , wherein the content of the thickener is 5 to 25% by mass relative to the total mass of the grease composition of the invention. The invention relates to a grease composition which is favorably applicable to a lubricated part which requires high torque transmission performance and excellent adhesion prevention performance, specifically to a lubricated part and the like of an electromagnetic clutch for transmitting and shutting rotational power.Conventionally, a compressor of a vehicle air conditioning apparatus receives a driving force via a belt from a drive engine, and its operation is usually ...

STEEL WIRE ROPE, ELEVATOR PROVIDED WITH STEEL WIRE ROPE, LUBRICANT FOR STEEL WIRE ROPE, AND USE OF LUBRICANT FOR LUBRICATING THE STEEL WIRE ROPE

The object of the invention is a traction sheave elevator and a steel rope that comprises metal as a load-bearing material, such as the suspension rope of an elevator, which rope comprises at least one or more strands laid from metal wires and which rope is lubricated with a lubricant. Another object is the use of the aforementioned lubricant for lubricating a steel rope. The lubricant comprises at least oil and powder substance, which powder substance comprises at least particles whose shape substantially spherical or almost spherical, and preferably the hardness of at least part of the particles is greater than 4 on the Mohs scale. 1. Steel wire rope comprising one or more strands composed of steel wires and a lubricant , which lubricant comprises oil and an amount of a powder substance , wherein the lubricant is in a form of paste and the powder substance in the lubricant comprises particles whose internal aspect ratio is at most about 5 , preferably less than 2 , more preferably less than 1.5 , even more preferably at most about 1.2 , most preferably as close to one as possible.2. Steel wire rope according to claim 1 , wherein the shape of the particles is substantially spherical or almost spherical.3. Steel wire rope according to claim 1 , wherein the powder substance in the lubricant comprises particles whose hardness is greater than 4 on the Mohs scale.4. Steel wire rope according to claim 1 , wherein the hardness of the particles is about equal to the hardness of the steel of the wires of the strands claim 1 , or greater than the hardness of the steel of the wires of the strands.5. Steel wire rope according to claim 1 , wherein the powder substance comprises particles that belong to the spinel group of minerals claim 1 , which has crystal forms that are cubic or isometric claim 1 , for instance octahedral.6. Steel wire rope according to claim 1 , wherein the powder substance comprises classified manganese (II claim 1 , III) oxide claim 1 , MnOand/or ...

Steel wire rope, elevator provided with steel wire rope, lubricant for steel wire rope, and use of lubricant for lubricating the steel wire rope

A wire rope is disclosed that comprises metal wires, preferably steel wires, as a load-bearing material, which rope comprises at least one or more strands laid from said metal wires and which rope is lubricated with a lubricant. Another object is the use of the aforementioned lubricant for lubricating a steel rope. The lubricant comprises at least oil and powder substance, which powder substance comprises at least particles whose hardness is greater than 4 on the Mohs scale. A traction sheave elevator comprising such a wire rope as a suspension rope is disclosed, too.

METHODS AND APPARATUS USING REFRIGERANT COMPOSITIONS COMPRISING REFRIGERANT AND LUBRICANT COMPRISING PERFLUOROPOLYETHER AND NON-FLUORINATED LUBRICANT

Disclosed herein is a method to improve miscibility in refrigeration, air conditioning, heat pump or power cycle systems comprising charging a refrigeration, air conditioning or heat pump system with a refrigerant composition; wherein the refrigerant composition comprises at least one refrigerant and a lubricant comprising at least one perfluoropolyether and at least one non-fluorinated lubricant, provided that the refrigerant composition has no more than two liquid phases over the range of the composition and over a range of temperature from about −40° C. to about +60° C. Also disclosed is a refrigeration, air conditioning, heat pump, or power cycle system containing said refrigerant composition. 1. A method to improve miscibility in refrigeration , air conditioning , or heat pump systems comprising:charging a refrigeration, air conditioning, or heat pump system with a refrigerant composition;wherein the refrigerant composition comprises at least one refrigerant and a lubricant; wherein the lubricant comprises at least one perfluoropolyether and at least one non-fluorinated lubricant, provided that the refrigerant composition has no more than two liquid phases over the range of the composition and over a range of temperature from about −40° C. to about +200° C.; andwherein the refrigeration, air conditioning, or heat pump system comprises an evaporator, a condenser, a compressor and an expansion device.2. The method of claim 1 , wherein the at least one refrigerant comprises at least one compound selected from the group consisting of HFO-1234yf and trans-HFO-1234ze; and wherein the non-fluorinated lubricant comprises polyalkylene glycols.3. The method of claim 1 , wherein the at least one refrigerant is chosen from HFO-1234yf claim 1 , trans-HFO-1234ze claim 1 , HFO-1243zf claim 1 , HFC-32 claim 1 , HFC-134 claim 1 , HFC-134a claim 1 , HFC-125 claim 1 , HFC-152a claim 1 , HFC-161 claim 1 , HFC-227ea claim 1 , HFC-236fa claim 1 , HFC-245fa claim 1 , HFC-245eb claim ...

SLIDING MEMBER

In a sliding member, a sliding surface of a substrate of fluorine rubber on which another member slides is covered with a coating that is formed of an epoxy resin having a scratch hardness (Pencil Method) after curing of F to 2H and in which fluorine resin powder is dispersed. 1. A sliding member formed of fluorine rubber , the sliding member comprising:a substrate with a sliding surface on which another member slides; anda coating that covers at least the sliding surface, whereinthe coating contains an epoxy resin in which fluorine resin powder is dispersed and has a scratch hardness (Pencil Method) of F to 2H.2. The sliding member according to claim 1 , wherein a filling rate at which the coating is filled with the fluorine resin powder is 5 vol % or more and 15 vol % or less of the cured coating. The disclosure of Japanese Patent Application No. 2014-183429 filed on Sep. 9, 2014 including the specification, drawings and abstract, is incorporated herein by reference in its entirety.1. Field of the InventionThe invention relates to a sliding member used for an oil seal and the like.2. Description of Related ArtAn oil seal is assembled on a rotating shaft for an engine of an automobile in order to prevent, for example, leakage of oil through an end of the rotating shaft, and conversely, entry of external dust. The oil seal needs to be highly resistant to heat and oil. Thus, fluorine rubber is often used as a formation material for a sliding member used for the oil seal. For the oil seal, there has also been a request for a substantial reduction in sliding torque in order to meet recent demands for energy saving and an extended life of the oil seal.Thus, effort has been made to cover a sliding surface of a seal lip on which the rotating shaft slides with a coating that enables friction to be reduced and that is highly resistant to wear. Japanese Patent Application Publication No. 2003-165856 (JP 2003-165856 A) discloses that a sealing material (O ring) for a ...

LITHIUM-BASED THICKENER AND GREASE COMPOSITION INCLUDING THE SAME

A lithium salt thickener that enhances thermal stability at high temperature and operability at low temperature, and a grease composition including the same, is provided. 2. The lithium-based thickener according to claim 1 , wherein m and n are the same or different and are integers of 7 or 8.4. The grease composition according to claim 3 , wherein the grease composition comprises:70 to 85% by weight of the synthetic polyalphaolefin (PAO) base oil;10 to 20% by weight of the lithium-based thickener; and0.1 to 10% by weight of the additives.5. The grease composition according to claim 3 , wherein an ester-based viscosity regulator having a viscosity of 500 to 1000 cSt is included as an additive.6. The grease composition according to claim 4 , wherein the ester-based viscosity regulator is included in a content range of 1 to 7% by weight based on a total weight of the grease composition.7. The grease composition according to claim 3 , wherein one or more styrene-based oil separation regulators selected from the group consisting of a styrene-ethylene/propylene block copolymer and a styrene-isoprene copolymer are included as additives.8. The grease composition according to claim 6 , wherein the styrene-based oil separation regulator is included in a content range of 0.5 to 3% by weight based on a total weight of the grease composition. This application claims the benefit of and priority to Korean Patent Application No. 10-2015-0127544 filed on Sep. 9, 2015, the content of which is incorporated herein by reference in its entirety.The present disclosure relates to lithium salt thickeners, as well as grease compositions including the same. More particularly, it relates to a lithium salt thickener that enhances thermal stability at high temperature and operability at low temperature.The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.Grease is a semisolid-type lubricant used for lubrication ...

SLIDING MECHANISM AND GREASE COMPOSITION FOR SLIDING MECHANISMS

A sliding mechanism includes first and second members slidable relative to each other and a grease composition interposed between the first and second members and containing a thickening agent and a base oil, wherein the grease composition contains lithium 12-hydroxystearate as the thickening agent and dioctyl sebacate and/or poly-α-olefin as the base oil; and wherein at least one of the first and second member has a sliding surface coated with a hard carbon film of diamond-like carbon. 15.-. (canceled)6. A sliding mechanism , comprising:first and second members slidable relative to each other; anda grease composition interposed between the first and second members and containing a thickening agent and a base oil,wherein the grease composition contains lithium 12-hydroxystearate as the thickening agent and dioctyl sebacate and/or poly-α-olefin as the base oil;wherein at least one of the first and second member has a sliding surface coated with a hard carbon film of diamond-like carbon; andwherein the diamond-like carbon has a hydrogen content of 0.5 atomic % or less.7. The sliding mechanism according to claim 6 , wherein the base oil has a kinematic viscosity of 10 to 70 mm/sec at 40° C.8. A grease composition for a sliding mechanism claim 6 , the sliding mechanism comprising first and second members slidable relative to each other claim 6 , at least one of the first and second members having a sliding surface coated with a hard carbon film of diamond-like carbon claim 6 , the grease composition adapted to be interposed between the first and second members and comprising:a thickening agent; anda base oil,wherein the grease composition contains lithium 12-hydroxystearate as the thickening agent and dioctyl sebacate and/or poly-α-olefin as the base oil; andwherein the diamond-like carbon has a hydrogen content of 0.5 atomic % or less.9. The grease composition for the sliding mechanism according to claim 8 , wherein the base oil has a kinematic viscosity of 10 to 70 mm ...

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 and a thickener, 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 80% by mole or more and less than 91% by mole, and a worked penetration being 300 to 330. 1. A grease composition comprising a base oil and a thickener ,wherein said thickener is 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,an amount of cyclohexylamine in said amine mixture is 80% by mole to or more and less than 91% by mole, anda worked penetration is 300 to 330.2. A rolling device comprising:a first race member having a first raceway surface,a second race member having a second raceway surface, anda plurality of rolling elements rotatably arranged between said first raceway surface and said second raceway surface,wherein said first race member and said second race member can move relative to each other, and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'said rolling device comprises the grease composition of intervening to rolling contact parts and/or sliding contact parts between said plurality of rolling elements and said first raceway surface and rolling contact parts and/or sliding contact parts between said plurality of rolling elements and said second raceway surface.'} The present invention relates to a grease composition comprising a predetermined thickener and having a predetermined worked penetration, and a rolling ...

COMPOUND COMPRISING POLYAMINE, ACIDIC AND BORON FUNCTIONALITIES AND ITS USE AS A LUBRICANT ADDITIVE

A product resulting from the reaction of at least: a hydroxybenzoic acid, optionally substituted by a hydrocarbyl group, a boron compound, an amine component selected from a di-fatty-alkyl(ene) polyalkylamine composition including one or more polyalkylamines of formulae (I) or (II). A lubricant composition includes this product. Use of this product as a lubricant for two-stroke marine engines and four-stroke marine engines, more preferably two-stroke marine engines. 114-. (canceled)16. The product according to claim 15 , wherein the hydroxybenzoic acid claim 15 , optionally substituted by a hydrocarbyl group claim 15 , is selected from the group consisting of: mono-alk(en)yl substituted salicylic acids claim 15 , di-alk(en)yl substituted salicylic acids claim 15 , acid functionalized calixarenes and mixtures thereof.18. The product according to claim 17 , wherein X comprises from 12 to 40 carbon atoms.20. The product according to claim 19 , wherein the hydroxybenzoic acid compound is salicylic acid.21. The product according to claim 15 , wherein the boron compound is selected from the group consisting of: boric acid claim 15 , boric acid complexes claim 15 , boric oxide claim 15 , a trialkyl borate in which the alkyl groups comprise independently from 1 to 4 carbon atoms claim 15 , a C-Calkyl boronic acid claim 15 , a C-Cdialkyl boric acid claim 15 , a C-Caryl boric acid claim 15 , a C-Cdiaryl boric acid claim 15 , a C-Caralkyl boric acid claim 15 , a C-Cdiaralkyl boric acid claim 15 , and products deriving from these by substitution of an alkyl group by one or more alkoxy unit.22. The product according to claim 21 , wherein the boron compound is boric acid.23. The product according to claim 15 , wherein the polyalkylamine composition comprises at least 4% w/w of branched compounds of formula (I) or (II) claim 15 , with regards to the total weight of polyalkylamine compounds (I) and (II) in the composition claim 15 , branched compound signifying that:in formula (I), ...

FLUOROPOLYETHER COMPOUND, LUBRICANT USING SAME AND USAGE THEREOF

An object of an aspect of the present invention is to provide: a lubricant excellent in adsorbability on the surface of a magnetic disk and in contamination resistance; and a magnetic disk which uses the lubricant and which is excellent in durability. The lubricant in accordance with an aspect of the present invention contains a fluoropolyether compound having, at a terminal thereof, a hydroxyalkenyl group or a hydroxyalkynyl group. 1. A fluoropolyether compound having a structure represented by Formula (1) below:{'br': None, 'sup': 1', '2', '3, 'R—R—R\u2003\u2003(1)'}where:{'sup': '2', 'Rrepresents a perfluoropolyether;'}{'sup': 1', '3, 'Rand Reach independently represent an organic group having, at a terminal thereof, a hydroxyl group, a halogenated alkyl group, an alkoxy group, a carboxy group, an amino group, an ester group, an amide group, or an aryl group; and'}{'sup': 1', '3, 'at least one of Rand Rcontains a hydroxyalkenyl group which has a hydroxyl group at a terminal thereof, or a hydroxyalkynyl group which has a hydroxyl group at a terminal thereof.'}2. The fluoropolyether compound as set forth in claim 1 , wherein:{'sup': 1', '3, 'in a case where at least one of Rand Rcontains the hydroxyalkenyl group which has a hydroxyl group at a terminal thereof, the hydroxyalkenyl group has a structure represented by Formula (2) below; and'}{'sup': 1', '3, 'claim-text': {'br': None, 'sub': 2', 'a', '2', 'b, '—(CH)—CH═CH—(CH)—OH\u2003\u2003(2)'}, 'in a case where at least one of Rand Rcontains the hydroxyalkynyl group which has a hydroxyl group at a terminal thereof, the hydroxyalkynyl group has a structure represented by Formula (3) below {'br': None, 'sub': 2', 'c', '2', 'd, '—(CH)—C≡C—(CH)—OH\u2003\u2003(3)'}, 'where a and b are each a real number of 1 to 4, and'}where c and d are each a real number of 1 to 4.4. The fluoropolyether compound as set forth in claim 1 , wherein:{'sup': 1', '3', '1', '3, 'in a case where at least one of Rand Rcontains the ...

NANOSHEET COMPOSITIONS AND THEIR USE IN LUBRICANTS AND POLISHING SLURRIES

Lubrication and friction reduction improves fuel efficiency and reduces energy consumption. Effective and controllable material removal results in superior surface finishing and planarization. Nanosheets are developed with specific functionalization that can be used to reduce friction and wear, improve the fluidic property, and rheological performance 1. A suspension , comprising:a plurality of nanosheets, wherein a nanosheet has a length ranging from about 10 nm to about 10 μm; wherein the nanosheet has a thickness of less than 90 nm; anda substance capable of suspending the plurality of nanosheets.2. The suspension of wherein the thickness is less than 50 nm.3. The suspension of wherein the nanosheets have an aspect ratio of at least 10.4. The suspension of wherein the nanosheets are comprised of one of the group consisting of: graphene claim 1 , fluoro-graphene claim 1 , graphene oxide claim 1 , BCN claim 1 , h-BN claim 1 , MoS claim 1 , WS claim 1 , MoSe claim 1 , WSe claim 1 , TiTe claim 1 , MnPS claim 1 , MoTe claim 1 , WTe claim 1 , ZrS claim 1 , ZrSe claim 1 , TiS claim 1 , VSe claim 1 , GaSe claim 1 , GaTe claim 1 , InSe claim 1 , BiSe claim 1 , BiTe claim 1 , BiMnTe claim 1 , NbSe claim 1 , NbS claim 1 , LaSe claim 1 , TaS claim 1 , NiSe claim 1 , semiconducting chalcogenides claim 1 , metallic dichalcogenide claim 1 , micas claim 1 , BSCCO claim 1 , MoO claim 1 , WO claim 1 , TiO claim 1 , MnO claim 1 , VO claim 1 , TaO claim 1 , RuO claim 1 , YO claim 1 , TiNbO claim 1 , KHNbO claim 1 , LaNbO claim 1 , LaEuNbO claim 1 , (Ca claim 1 ,Sr)NbO claim 1 , CaTaTiO claim 1 , BiTiO claim 1 , BiSrTaO claim 1 , BiLaTiO claim 1 , KNbOF claim 1 , Ni(OH) claim 1 , Mg(OH) claim 1 , Sm(OH) claim 1 , Er(OH) claim 1 , Eu(OH) claim 1 , Y(OH) claim 1 , Co—Al(OH) claim 1 , Mg—Al(OH) claim 1 , perovskite-type oxides claim 1 , hydroxides claim 1 , TiAlC claim 1 , TiAlC claim 1 , TaAlC claim 1 , (Ti claim 1 ,Nb)AlC claim 1 , (VCr)AlC claim 1 , TiAlCN claim 1 , zirconium ...

LUBRICATING COMPOSITIONS HAVING A MIXED DISPERSANT ADDITIVE PACKAGE

The instant disclosure generally relates to lubricating compositions having an oil of lubricating viscosity and a mixed dispersant additive package. The mixed dispersant additive package can include an acylated poly(1-olefin)-based dispersant and a poly-isobutylene succinimide dispersant where the ratio of the acylated poly(1-olefin)-based dispersant to the polyisobutylene succinimide dispersant in the lubricating composition is from 3:1 to 1:3. 1. A lubricating composition comprising:an oil of lubricating viscosity; and [{'sub': 6', '18, 'an acylated poly(1-olefin)-based dispersant, where the poly(1-olefin) is comprised of at least 75 mole percent of a Cto Chydrocarbyl;'}, 'a polyisobutylene-based dispersant;, '2 to 20 wt % of a dispersant additive package includingwhere the ratio of the acylated poly(1-olefin)-based dispersant to the polyisobutylene succinimide dispersant is from 3:1 to 1:3, or 2:1 to 1:2, or 3:2 to 2:3.2. The lubricating composition of claim 1 , wherein the poly(1-olefin) comprises at least 80 mole percent of the Cto Chydrocarbyl.3. The lubricating composition of claim 1 , wherein the 1-olefin comprises at least 90 mole percent of the Cto Chydrocarbyl.4. The lubricating composition of claim 1 , wherein the 1-olefin comprises at least 95 mole percent of the Cto Chydrocarbyl.5. The lubricating composition of claim 1 , wherein the 1-olefin comprises 100 mole percent of the Cto Chydrocarbyl.6. The lubricating composition of claim 1 , wherein the 1-olefin is a Cto Chydrocarbyl.7. The lubricating composition of claim 1 , wherein the acylated poly(1-olefin)-based dispersant is selected from a polyalphaolefin succinimide claim 1 , a polyalphaolefin succinamide claim 1 , a polyalphaolefin acid ester claim 1 , a polyalphaolefin oxazoline claim 1 , a polyalphaolefin imidazoline claim 1 , a polyalphaolefin succinamide imidazoline claim 1 , and combinations thereof.8. The lubricating composition of claim 1 , wherein the acylated poly(1-olefin)-based ...

LUBRICATING GREASE COMPOSITION

A lubricating grease composition, and more specifically, to a lubricating grease composition which, when used with an article clamping device, such as a chuck, produces excellent lubricating properties whilst remaining strongly adhered to metal parts in the clamping mechanism of the device and showing enhanced chemical and physical resistance to fluids such as cutting fluids with which they come into contact. 1. A lubricating grease composition comprising:a) from 15 to 65% by weight of one or more solid lubricants powders;b) from 15 to 84.0% by weight of or one more base oils;c) from 0.5 to 20% by weight of one or more adhesion improver;d) from 0.5 to 15% by weight of one or more waxes; ande) from 0 to 30% by weight of one or more thickeners.2. A lubricating grease composition in accordance with wherein the solid lubricant powder (a) is selected from one or more of the group of calcium oxide claim 1 , zinc oxide claim 1 , magnesium oxide claim 1 , calcium hydroxide claim 1 , zinc hydroxide claim 1 , magnesium hydroxide claim 1 , a carbonate such as calcium carbonate claim 1 , zinc carbonate claim 1 , magnesium carbonate claim 1 , calcium fluoride claim 1 , zinc fluoride claim 1 , magnesium fluoride claim 1 , polytetrafluoroethylene (PTFE) claim 1 , titanium dioxide claim 1 , a phosphorus containing salt such as a phosphoric acid salt claim 1 , a metaphosphoric acid salt claim 1 , a diphosphoric acid salt (pyrophosphate) claim 1 , a triphosphoric acid salt (tripolyphosphate) claim 1 , a phosphorous acid salt claim 1 , a diphosphorous acid salt claim 1 , or a hypophosphorous acid salt and zinc salts other than listed above.3. A lubricating grease composition in accordance with wherein the solid lubricant powder (a) is a mixture of hydrated tricalcium phosphate and calcium carbonate treated with stearic acid.4. A lubricating grease composition in accordance with wherein base oil (b) is selected from synthetic hydrocarbon oils claim 1 , polyalphaolefins (PAO) claim 1 , ...

LUBRICATING OIL COMPOSITION, LUBRICATING METHOD, AND TRANSMISSION

Provided are a lubricating oil composition containing a mineral oil (1) having a kinematic viscosity at 100° C. of 2 mm/s or more and less than 2.5 mm/s, and a polymethacrylate (2) having a functional group containing an oxygen atom in the molecule while having a specific structural, unit, which satisfies both high viscosity index and high shear stability, and a lubrication method and a transmission using the lubricating oil composition. 2. The lubricating oil composition according to claim 1 , wherein the functional group is a hydroxy group.3. The lubricating oil composition according to claim 1 , wherein the mass average molecular weight of the polymethacrylate is 5 claim 1 ,000 or more and 100 claim 1 ,000 or less.4. The lubricating oil composition according to claim 1 , wherein the content of the polymethacrylate is 1% by mass or more and 15% by mass or less based on the total amount of the composition.5. The lubricating oil composition according to claim 1 , having a kinematic viscosity at 100° C. of 4 mm/s or more and 7 mm/s or less.6. The lubricating oil composition according to claim 1 , having a viscosity index of 232 or more.7. The lubricating oil composition according to claim 1 , wherein the rate of change in kinematic viscosity at 40° C. of the composition claim 1 , as calculated according to the following method claim 1 , is 5% or less:Method for calculating rate of change in kinematic viscosity at 40° C.;{'sub': 1', '0', '0', '1', '0, 'with respect to an ultrasonically-treated composition obtained by irradiating a lubricating oil composition with ultrasonic waves for 60 minutes according to JASO M347-95 and an untreated lubricating oil composition, their kinematic viscosity at 40° C. (v, v) is measured according to JIS K2283:2000, and the rate of reduction ((v−v)/v×100) is referred to as the rate of change in kinematic viscosity at 40° C.'}8. The lubricating oil composition according to claim 1 , which is for transmissions.9. A lubrication method ...

SLIDE MEMBER, BICYCLE COMPONENT USING SLIDE MEMBER, FISHING TACKLE COMPONENT USING SLIDE MEMBER, AND METHOD OF MANUFACTURING SLIDE MEMBER

A slide member is provided with a base material, a plated slide layer and an intermediate plated layer. The plated slide layer contains a solid lubricant. The intermediate plated layer is disposed between the base material and the plated slide layer, the intermediate plated layer increasing cohesion of the base material and the plated slide layer. The plated slide layer has a content of the solid lubricant in a range from 30 to 70 vol %, inclusive. 1. A slide member comprising:a base material;a plated slide layer containing a solid lubricant; andan intermediate plated layer disposed between the base material and the plated slide layer, the intermediate plated layer increasing cohesion of the base material and the plated slide layer,the plated slide layer having a content of the solid lubricant in a range from 30 to 70 vol %, inclusive.2. The slide member according to claim 1 , whereinthe base material includes at least one metal selected from the group consisting of iron, stainless steel, aluminum and titanium.3. The slide member according to claim 1 , whereinthe plated slide layer and the intermediate plated layer contain at least one metal selected from the group consisting of nickel, copper, tin and zinc.4. The slide member according to claim 1 , whereinthe plated slide layer and the intermediate plated layer contain a metal of the same type selected from the group consisting of nickel, copper, tin and zinc.5. The slide member according to claim 1 , whereinthe intermediate plated layer contains a solid lubricant in a smaller quantity than the solid lubricant contained in the plated slide layer.6. The slide member according to claim 1 , whereinthe intermediate plated layer contains no solid lubricant.7. The slide member according to claim 1 , whereinthe solid lubricant contains particles of a fluorine compound.8. The slide member according to claim 7 , whereinthe solid lubricant has a content of the particles the fluorine compound particles in a range from 30 to ...

SLIDE MEMBER, BICYCLE COMPONENT USING SLIDE MEMBER, AND FISHING TACKLE COMPONENT USING SLIDE MEMBER

A slide member is provided with a base material and a slide layer. The slide layer is disposed on at least a portion of the base material. The slide layer contains a solid lubricant and a plurality of hard particles, the hard particles being harder than the solid lubricant. 1. A slide member comprising:a base material; anda slide layer disposed on at least a portion of the base material, and the slide layer containing a solid lubricant and a plurality of hard particles, the hard particles being harder than the solid lubricant.2. The slide member according to claim 1 , whereinthe base material includes at least one metal selected from the group consisting of iron, stainless steel, aluminum and titanium.3. The slide member according to claim 1 , further comprisingan intermediate layer disposed between the base material and the slide layer, and the intermediate layer increasing cohesion of the base material and the slide layer, andthe slide layer and the intermediate layer being plated layers containing at least one metal selected from the group consisting of nickel, copper, tin and zinc.4. The slide member according to claim 1 , further comprisingan intermediate layer disposed between the base material and the slide layer, and the intermediate layer increasing cohesion of the base material and the slide layer,the slide layer and the intermediate layer being plated layers containing metal of the same type selected from the group consisting of nickel, copper, tin, and zinc.5. The slide member according to claim 3 , whereinthe intermediate layer contains a solid lubricant in a smaller quantity than the solid lubricant contained in the slide layer.6. The slide member according to claim 3 , whereinthe intermediate layer contains no solid lubricant.7. The slide member according to claim 1 , whereinthe solid lubricant contains particles of at least one selected from the group consisting of boron nitride, molybdenum disulfide, polytetrafluoroethylene, tetrafluoroethylene- ...

LUBRICIOUS COATINGS FOR SKIS AND SNOWBOARDS AND RELATED SYSTEMS AND METHODS OF USE

Coatings, coating systems and coating methods for skis and snowboards are provided. The coatings may be lubricious coatings including one or more hydrophobic compounds, adhesion agents, shape memory polymers, free-radical initiators, and/or carrying solvents.

IMAGE BEARER PROTECTIVE AGENT, PROTECTIVE LAYER FORMING DEVICE, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

An image bearer protective agent is provided. The image bearer protective agent includes a fatty acid metal salt and an inorganic lubricant. The inorganic lubricant includes a first inorganic lubricant having a tap density of from 0.30 to 0.8 g/cm. 1. An image bearer protective agent comprising:a fatty acid metal salt; and{'sup': '2', 'an inorganic lubricant including a first inorganic lubricant having a tap density of from 0.30 to 0.8 g/cm.'}2. The image bearer protective agent of claim 1 , wherein the inorganic lubricant further includes a second inorganic lubricant having a tap density of 0.25 g/cmor less.3. The image bearer protective agent of claim 1 , wherein the first inorganic lubricant includes boron nitride.4. The image bearer protective agent of claim 2 , wherein the second inorganic lubricant includes at least one member selected from the group consisting of mica claim 2 , boron nitride claim 2 , molybdenum disulfide claim 2 , tungsten disulfide claim 2 , talc claim 2 , kaolin claim 2 , montmorillonite claim 2 , calcium fluoride claim 2 , silica claim 2 , graphite claim 2 , polymethyl methacrylate resin claim 2 , polytetrafluoroethylene resin claim 2 , melamine formaldehyde claim 2 , organic molybdenum claim 2 , and silicone resin.5. The image bearer protective agent of claim 1 , wherein the fatty acid metal salt includes at least one member selected from the group consisting of zinc stearate claim 1 , calcium stearate claim 1 , and zinc laurate.6. The image bearer protective agent of claim 1 , wherein the image bearer protective agent has a density of from 1.11 to 1.190 g/cm.7. The image bearer protective agent of claim 1 , wherein a mass ratio of the fatty acid metal salt to the inorganic lubricant ranges from 70/30 to 98/2.8. The image bearer protective agent of claim 1 , wherein the image bearer protective agent is a compression-molded product of a mixture of the fatty acid metal salt and the inorganic lubricant.9. A protective layer forming device ...

REINFORCED COMPOSITES WITH REPELLENT AND SLIPPERY PROPERTIES

Compositions and processes are disclosed for forming hydrophobic coatings and lubricant-infused surface coatings. Coatings may be applied to various substrates without prior chemical or temperature treatment of the substrates and over large and irregular surfaces. Coatings are self-healing, antifouling, and have enhanced lifetimes. 1. A structure having a slippery surface , the structure comprising:an abrasion resistant composite structure comprising a porous reinforcing material and a repellent interfacial material; anda lubricant-infused surface coating on an exposed surface of the composite structure.2. The structure of claim 1 , wherein the repellent interfacial material is coated on and/or embedded within the porous reinforcing material.3. The structure of claim 1 , wherein the porous reinforcing material comprises stainless steel claim 1 , or copper claim 1 , or aluminum claim 1 , or fiberglass claim 1 , or carbon fiber claim 1 , or canvas claim 1 , or any combination thereof.4. The structure of claim 1 , wherein the repellent interfacial material comprises a polymer claim 1 , or an organosilicon compound claim 1 , or a combination thereof.5. The structure of claim 1 , wherein the repellent interfacial material comprises at least one of siloxane claim 1 , silicone claim 1 , fluoropolymer claim 1 , methacrylate claim 1 , polypropylene claim 1 , polyethylene claim 1 , cellulose claim 1 , and silazane.6. The structure of claim 1 , wherein the lubricant-infused surface coating comprises a fluorocarbon polymer claim 1 , or a silicone oil claim 1 , or a combination thereof.7. The structure of claim 1 , wherein the exposed surface comprising the lubricant-infused surface coating has a surface energy between 10 and 20 mJ/m claim 1 , or a water contact angle between 90 and 135 degrees claim 1 , or a water roll-off angle between 1 and 25 degrees claim 1 , or any combination thereof.8. The structure of claim 1 , wherein the composite structure further comprises a pore- ...

GREASE COMPOSITION, AND LUBRICATION METHOD AND DEVICE FOR SLIDING MECHANISM, USING SAID GREASE COMPOSITION

The present invention addresses a problem of providing a grease composition containing a urea-based thickener and capable of appropriately maintaining the kinematic friction force in lubrication parts. The grease composition contains a base oil (A) and a urea-based thickener (B), wherein the base oil (A) has a kinematic viscosity at 40° C. of 100 mm/s or more, and the particles containing the urea-based thickener (B) in the grease composition satisfy the following requirement (I). Requirement (I): the area-based arithmetic average particle diameter of the particles is 2.0 μm or less, as measured by a laser diffraction/scattering method. 1. A grease composition , comprising:a base oil (A) anda urea-based thickener (B),wherein:{'sup': '2', 'the base oil (A) has a kinematic viscosity at 40° C. of 100 mm/s or more, and'}particles containing the urea-based thickener (B) in the grease composition satisfy the following requirement (I):Requirement (I): an area-based arithmetic average particle diameter of the particles is 2.0 μm or less, as measured by a laser diffraction/scattering method.2. The grease composition of claim 1 , wherein the particles containing the urea-based thickener (B) in the grease composition further satisfy the following requirement (II):{'sup': 5', '2', '3, 'Requirement (II): a specific surface area of the particles is 1.0×10cm/cmor more, as measured by the laser diffraction/scattering method.'}3. The grease composition of claim 1 , wherein the kinematic viscosity at 40° C. of the base oil (A) is from 150 to 700 mm/s.4123. The grease composition of claim 1 , wherein the base oil (A) is a mixed base oil of a low-viscosity base oil (A) having a kinematic viscosity at 40° C. of from 10 to 50 mm/s claim 1 , a high-viscosity base oil (A) having a kinematic viscosity at 40° C. of from 200 to 700 mm/s claim 1 , and an ultrahigh-viscosity base oil (A) having a kinematic viscosity at 40° C. of from 30 claim 1 ,000 to 45 claim 1 ,000 mm/s.5. The grease ...

APPARATUS AND METHOD FOR PRECISE APPLICATION OF LUBRICANT ON COLLIMATOR COMPONENTS

A method of applying a lubricant onto a carriage box of a collimator includes: providing a mixture having a lubricant and a solvent; applying an amount of the mixture that includes a predetermined quantity of the lubricant onto a first set of guide rails at a first side of the carriage box; and removing the solvent from the mixture to leave the lubricant adhering to the surface. A kit for lubricating a collimator includes: a container housing a lubricating mixture having a lubricant mixed in a solvent; wherein a quantity of the lubricant is predetermined based, at least in part, on a first surface area of a first set of guide rails at a first side of a carriage box, a second surface area of a second set of guide rails at a second side of the carriage box, or both the first surface area and the second surface area. 1. A method of applying a lubricant onto a carriage box of a collimator , comprising:providing a mixture having a lubricant and a solvent;applying an amount of the mixture that includes a predetermined quantity of the lubricant onto a first set of guide rails at a first side of the carriage box; andremoving the solvent from the mixture to leave the lubricant adhering to the surface.2. The method of claim 1 , wherein the solvent comprises Vertrel XF claim 1 , Hydrofluorocarbon (HFC) fluid claim 1 , hydrochlorofluorcarbon (HCFC) fluid claim 1 , perfluorocarbon (PFC) fluid claim 1 , or chlorinated solvent fluid.3. The method of claim 1 , wherein the lubricant comprises perfluoropolyether (PFPE) claim 1 , polyphenyl ether (PPE) claim 1 , Krytox XP 2A5 claim 1 , or Krytox XP 2A7.4. The method of claim 1 , wherein the mixture is provided in a container claim 1 , and wherein the act of applying comprises transferring the amount of the mixture from the container to the carriage box without requiring a user to measure the amount of the mixture.5. The method of claim 1 , wherein the mixture is provided in a container claim 1 , and wherein the method further ...

TOOL FOR TREATING A SEAL WIPING SURFACE OF A SEALED CONNECTOR

A tool configured to apply a lubricant includes an insert disposed within a shroud of an electrical connector. The insert has a central cavity and passages extending from the central cavity to portals defined in an outer surface of the insert and a spray valve disposed within the insert configured to dispense a lubricant mist into the central cavity, through the passages to the portals, and onto a seal wiping surface of the electrical connector. 1. A tool configured for preparing a sealed connector system for connection , said sealed connector system comprising a male connector body , a female connector body defining a shroud configured to receive the male connector body , and a resilient seal arranged intermediate the male connector body and the female connector body , said tool comprising:an insert defining a central cavity and a plurality of passages extending from the central cavity to portals defined in an outer surface of the insert; anda spray valve disposed within the insert configured to dispense a lubricant mist into the central cavity and through the plurality of passages to the portals.2. The tool according to claim 1 , wherein the insert is configured to be disposed within the shroud.3. The tool according to claim 1 , wherein the portals are configured to deposit the lubricant mist onto a seal wiping surface of the shroud.4. The tool according to claim 3 , wherein the insert is configured to limit application of the lubricant mist to the seal wiping surface.5. The tool according to claim 1 , wherein the insert and the spray valve are configured to accommodate a perfluoropolyether based lubricant.6. The tool according to claim 1 , wherein the insert and the spray valve are configured to accommodate a phenylmethyl polysiloxane based lubricant.7. The tool according to claim 1 , wherein the resilient seal axially surrounds a portion of the male connector body.8. The tool according to claim 1 , wherein the spray value is connected to an air supply and a ...

HIGHLY-FLEXIBLE ELECTRIC WIRE

A highly-flexible electric wire includes: a conductor; and an insulator layer covering the conductor and further includes a liquid lubricant interposed between the conductor and insulator layer. The lubricant contains at least one selected from the group consisting of polyethylene glycol, polypropylene glycol, and fluorine lubricants. Such a configuration enables the conductor and insulator layer to slide smoothly on each other, therefore increasing the flexibility. 1. A highly-flexible electric wire , comprising:a conductor; andan insulator layer covering the conductor,wherein a liquid lubricant is interposed between the conductor and the insulator layer and contains at least one selected from the group consisting of polyethylene glycol, polypropylene glycol, and fluorine lubricants.2. The highly-flexible electric wire according to claim 1 , wherein the conductor is a stranded. conductor composed of a bundle of plural wires claim 1 , andthe lubricant is interposed between the conductor and the insulator layer and between the wires adjacent to each other.3. The highly-flexible electric wire according to claim 1 , wherein the lubricant is in liquid state in a temperature range from −40 to 80° C. and has a boiling point of 150° C. or higher.4. The highly-flexible electric wire according to claim 2 , wherein the lubricant is in liquid state in a temperature range from −40 to 80° C. and has a boiling point of 150° C. or higher. This application is a Continuation of PCT Application No. PCT/JP2014/065975, filed on Jun. 17, 2014, and claims the priority of Japanese Patent Application No. 2013-131806 filed on Jun. 24, 2013, the content of all of which is incorporated herein by reference.1. Technical FieldThe present invention relates to a highly-flexible electric wire. Specifically, the present invention relates to a highly-flexible electric wire having high durability in an environment where the electric wire is repeatedly bent.2. Related ArtElectric wires connected to ...

BICYCLE LUBRICANT

A bicycle chain lubricant that may be applied as a coating on a bicycle chain is a crystalline solid at ambient temperatures, yet when the chain is in motion the forces around internal components locally transforms the coating to a lubricous fluid. This increases chain efficiency in the drive train and reduces ware by limiting water and dirt access to chain internal components. 1. A lubricant composition comprising:greater than or equal to 50% paraffin wax by weight;less than or equal to 30% petroleum oil by weight; and10% to 20% molybdenum disulphide by weight.2. The lubricant composition of claim 1 , wherein the petroleum oil is paraffinic oil.3. The lubricant composition of claim 2 , comprising 50% to 60% paraffin wax by weight.4. The lubricant composition of claim 2 , comprising:60% to 70% paraffin wax by weight; andless than or equal to 20% paraffinic oil by weight.5. The lubricant composition of claim 2 , comprising:70% to 80% paraffin wax by weight; andless than or equal to 10% paraffinic oil by weight.6. The lubricant composition of claim 2 , comprising:75% to 85% paraffin wax by weight; andless than or equal to 5% paraffinic oil by weight.7. A chain drive component comprising:a chain; anda lubricant composition coating the chain, the lubricant composition comprising greater than or equal to 50% paraffin wax by weight, less than or equal to 30% paraffinic oil by weight, and 10% to 20% molybdenum disulphide by weight.8. The chain drive component of claim 7 , wherein the lubricant composition has a solidification temperature greater than or equal to 15° C. and less than 25° C.9. The chain drive component of claim 7 , wherein the lubricant composition has a solidification temperature greater than or equal to 25° C. and less than 35° C.10. The chain drive component of claim 7 , wherein the lubricant composition has a solidification temperature greater than or equal to 35° C. less than 42° C.11. The chain drive component of claim 7 , wherein the lubricant ...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING MEDIUM

This fluorine-containing ether compound is a fluorine-containing ether compound represented by formula (1). 2. The fluorine-containing ether compound according to claim 1 , wherein Y in the formula (3) represents one of O claim 1 , S and CH.3. The fluorine-containing ether compound according to claim 1 , wherein R in the formula (3) represents a methyl group or H.4. The fluorine-containing ether compound according to claim 1 , wherein Rin the formula (1) represents one of a vinyloxy group claim 1 , an allyloxy group claim 1 , a 3-butenyloxy group claim 1 , a 4-pentenyloxy group and a propargyloxy group.5. The fluorine-containing ether compound according to claim 1 , wherein Rin the formula (1) is represented by any one of formulas (4) to (6) shown below:{'br': None, 'sub': 2', '2', '2', 'c', '2', 'a', '2, '—CFO—(CFCFO)—(CFO)—CF—\u2003\u2003(4)'} {'br': None, 'sub': 3', '3', '2', 'e', '3, '—CF(CF)—(OCF(CF)CF)—OCF(CF)—\u2003\u2003(5)'}, 'wherein in the formula (4), c and d indicate an average polymerization degree, and each represents a number from 0 to 30, provided that c and d are not both 0,'} {'br': None, 'sub': 2', '2', '2', '2', '2', 'f', '2', '2, '—CFCFO—(CFCFCFO)—CFCF—\u2003\u2003(6)'}, 'wherein in the formula (5), e indicates an average polymerization degree, and represents a number from 0.1 to 30,'}wherein in the formula (6), f indicates an average polymerization degree, and represents a number from 0.1 to 30.6. The fluorine-containing ether compound according to claim 1 , wherein the polar groups in Rin the formula (1) are hydroxyl groups.8. The fluorine-containing ether compound according to claim 1 , having a number average molecular weight within a range from 500 to 10 claim 1 ,000.9. A lubricant for a magnetic recording medium claim 1 , the lubricant comprising the fluorine-containing ether compound according to .10. A magnetic recording medium comprising at least a magnetic layer claim 1 , a protective layer and a lubricant layer provided sequentially ...

LUBRICATING OIL COMPOSITION FOR COMPRESSOR OILS AND METHOD FOR PRODUCING THE SAME

A lubricating oil composition for compressor oils, including 10 to 99% by mass of a lubricant base oil (A) having a kinematic viscosity at 100° C. of 1 to 14 mm/s, a viscosity index of 100 or more, and a pour point of 0° C. or lower, and 90 to 1% by mass of a liquid random copolymer ethylene-α-olefin copolymer (B) of ethylene and α-olefin, the liquid random copolymer ethylene-α-olefin copolymer (B) being prepared by means of a specific catalyst (where the total amount of (A) and (B) is 100% by mass), the lubricating oil composition for compressor oils having a kinematic viscosity at 40° C. of 10 to 300 mm/s. 2. A lubricating oil composition for compressors oils according to claim 1 , wherein in the metallocene compound represented by the above Formula 1 claim 1 , at least one among substituents (R claim 1 , R claim 1 , Rand R) bonded to a cyclopentadienyl group claim 1 , is a hydrocarbon group having 4 or more carbon atoms.3. A lubricating oil composition for compressors oils according to claim 1 , wherein Rand R claim 1 , being the same claim 1 , are hydrocarbon groups having 1 to 20 carbon atoms.4. A lubricating oil composition for compressors oils according to claim 1 , wherein in the metallocene compound represented by the above Formula 1 claim 1 , substituent (Ror R) bonded to the 3-position of the cyclopentadienyl group is a hydrocarbon group.5. A lubricating oil composition for compressors oils according to claim 4 , wherein in the metallocene compound represented by the above Formula 1 claim 4 , the hydrocarbon group (Ror R) bonded to the 3-position of the cyclopentadienyl group is an n-butyl group.6. A lubricating oil composition for compressors oils according to claim 1 , wherein in the metallocene compound represented by the above Formula 1 claim 1 , substituents (Rand R) bonded to the 2-position and 7-position of the fluorenyl group are all tert-butyl groups.8. A lubricating oil composition for compressors oils according to claim 7 , wherein the ammonium ...

MINERAL OIL-BASED BASE OIL, LUBRICATING OIL COMPOSITION, EQUIPMENT, LUBRICATING METHOD, AND GREASE COMPOSITION

The present invention provides a mineral base oil having a kinetic viscosity at 100° C. of 7 mm/s or more and less than 10 mm/s, a viscosity index of 100 or more, and a temperature gradient Δ|η*| complex viscosity between two temperature points of −5° C. and −15° C. of 240 mPa·s/° C. or less as measured with a rotary rheometer at an angular velocity of 6.3 rad/s. The use of the mineral base oil enables easy preparation of a lubricating oil composition and a grease composition having excellent oxidation stability while ensuring the freedom of selection of additives. 1: A mineral base oil having:{'sup': 2', '2, 'a kinetic viscosity at 100° C. of 7 mm/s or more and less than 10 mm/s;'}a viscosity index of 100 or more; anda temperature gradient Δ|η*| of complex viscosity between two temperature points of −5° C. and −15° C. of 240 mPa·s/° C. or less as measured with a rotary rheometer at an angular velocity of 6.3 rad/s.2: The mineral base oil according to claim 1 , which has a complex viscosity η* at −15° C. of 3 claim 1 ,000 mPa·s or less as measured with a rotary rheometer at an angular velocity of 6.3 rad/s.3: The mineral base oil according to claim 1 , which has an aromatic content (% C) of 0.1 or less and a sulfur content of less than 10 ppm by mass.4: The mineral base oil according to claim 1 , which is produced by refining a feedstock oil that comprises a petroleum-derived wax.5: The mineral base oil according to claim 1 , which is produced by refining a feedstock oil that comprises a petroleum-derived wax and a bottom oil and has a ratio of the content of the wax to the content of the bottom oil [wax/bottom oil] by mass of 30/70 to 98/2.6: A lubricating oil composition claim 1 , comprising a mineral base oil according to .7: The lubricating oil composition according to claim 6 , which has a kinetic viscosity at 100° C. of 7 mm/s or more and less than 10 mm/s and a viscosity index of 100 or more.8: An instrument claim 6 , which is selected from a turbomachine ...

POLYETHER COMPOUND AND PRODUCTION METHOD THEREFOR

The present invention relates to a polyether compound having a halogen atom content of 0.1000% by mass or less in terms of a polymer molecule thereof as measured by combustion ion chromatography and a weight average molecular weight (Mw) of 140,000 or more and 1,000,000 or less. 1: A polyether compound having a halogen atom content of 0.1000% by mass or less in terms of a polymer molecule thereof as measured by combustion ion chromatography and a weight average molecular weight of 140 ,000 or more and 1 ,000 ,000 or less.2: The polyether compound according to claim 1 , wherein the polyether compound is represented by the formula (1):{'br': None, 'sup': 1', '2, 'sub': 'n', 'X\ue8a0RO\ue8a0R\u2003\u2003(1)'}{'sup': 1', '2, 'wherein X represents a halogen atom; each RO independently represents a constitutional unit derived from an oxirane monomer; Rrepresents a hydrogen atom, a hydrocarbon group having a number of carbon atoms of 1 or more and 10 or less, or an oxygen-containing hydrocarbon group having a number of carbon atoms of 1 or more and 10 or less; and'}n represents such an integer that the polyether compound has a weight average molecular weight of 140,000 or more and 1,000,000 or less.4: The polyether compound according to claim 1 , wherein the polyether compound has a weight average molecular weight of 160 claim 1 ,000 or more and 1 claim 1 ,000 claim 1 ,000 or less.5: The polyether compound according to claim 1 , wherein the polyether compound has a halogen atom only at a molecular end thereof.6: The polyether compound according to claim 2 , wherein the oxirane monomer is at least one selected from the group consisting of ethylene oxide claim 2 , propylene oxide claim 2 , 1 claim 2 ,2-epoxybutane claim 2 , 1 claim 2 ,2-epoxyisobutane claim 2 , and 2 claim 2 ,3-epoxybutane.7: The polyether compound according to claim 1 , wherein the polyether compound has a molecular weight distribution of 10.0 or less.8: A viscosity index improver claim 1 , comprising the ...

HYDRAULIC OIL COMPOSITION

The present invention provides a hydraulic oil composition comprising a lubricating base oil having a kinematic viscosity at 40° C. of 15 to 50 mm/s, a viscosity index of 125 or lower, and an aromatic content of 1% by mass or higher; and 1 to 40% by mass based on a total amount of the hydraulic oil composition of a polymethacrylate having a number-average molecular weight of 28000 or lower. 1. A hydraulic oil composition comprising:{'sup': '2', 'a lubricating base oil having a kinematic viscosity at 40° C. of 15 to 50 mm/s, a viscosity index of 125 or lower, and an aromatic content of 1% by mass or higher; and'}1 to 40% by mass based on a total amount of the hydraulic oil composition of a polymethacrylate having a number-average molecular weight of 28000 or lower.2. The hydraulic oil composition according to claim 1 , wherein the hydraulic oil composition has a ratio (A/B) of (A) a kinematic viscosity (unit: mm/s) at 80° C. to (B) a high shear viscosity (unit: mPa·s claim 1 , shear condition: 10/s) at 80° C. of 1.15 or lower. The present invention relates to a hydraulic oil composition.In recent years, energy-saving hydraulic oils have been developed as one of responses to global warming. There are some conventional energy-saving hydraulic oils allowing achieving the reduction of energy consumption of apparatuses at starting, for example, by decreasing their low-temperature viscosity.There are also developed energy-saving hydraulic oils whose viscosity change is made small by blending a viscosity index improver to thereby reduce energy consumption in the steady-state operation after the oil temperature is raised. In the energy-saving hydraulic oils, the oil leakage (internal leakage) from construction machines' characteristic various hydraulic apparatus interiors is prevented by making small the viscosity change (making the viscosity index high) of the hydraulic oils, and the reduction of the energy consumption is achieved (for example, see Patent Literatures 1 to 3 ...

EPILAMIZATION METHOD OF AN ELEMENT OF A TIMEPIECE OR PIECE OF JEWELLERY

The invention relates to a method for epilamization of at least one portion of a substrate surface comprising the steps of: 1. A epilamization method of at least one part of a substrate surface comprising the steps of:a) preparing an epilame agentb) optionally, preparing the substrate surfacec) placing the substrate and the epilame agent in a chamber at ambient pressure{'sub': '2', 'd) introducing COinto the hermetically sealed chamber at a pressure comprised between 25 bar and 74 bar and at a temperature comprised between 10° C. and 80° C. for a duration comprised between 1 minute and 30 minutes.'}e) reducing the pressure in the chamber, andf) removing the epilamized substrate from the chamber.2. The epilamization method according to claim 1 , wherein the pressure in the hermetically sealed chamber in step d) is comprised between 45 bar and 70 bar.3. The epilamization method according to claim 2 , wherein the pressure in the hermetically sealed chamber in step d) is comprised between 50 bar and 60 bar.4. The epilamization method according to claim 1 , wherein the temperature in the hermetically sealed chamber in step d) is comprised between 25° C. and 60° C.5. The epilamization method according to claim 4 , wherein the temperature in the hermetically sealed chamber in step d) is comprised between 30° C. and 50° C.6. The epilamization method according to claim 1 , wherein the duration of step d) is comprised between 1 minute and 20 minutes.7. The epilamization method according to claim 6 , wherein the duration of step d) is comprised between 3 minutes and 15 minutes.8. The epilamization method according to claim 1 , wherein the method further comprises claim 1 , between steps e) and f) claim 1 , a step g) of heat treatment of the epilamized substrate.9. The epilamization method according to claim 1 , wherein step b) comprises a COtreatment at a temperature comprised between 10° C. and 80° C. and a pressure comprised between 25 bar and 250 bar.10. The epilamization ...

Grease Composition and Rolling Bearing in Which Grease Composition is Sealed

There is provided a grease composition containing a base oil including an ester oil, and a thickener including diurea represented by formula (1) below: 2. The grease composition according to claim 1 , wherein a shear viscosity at a temperature of 130° C. and a shear rate of 100 sis 4 Pa·s or more claim 1 , and a shear stress at a strain of 1 claim 1 ,000 claim 1 ,000% is 1800 Pa or more.3. A rolling bearing in which the grease composition according to is sealed.4. A rolling bearing in which the grease composition according to is sealed. The disclosure of Japanese Patent Application No. 2016-207010 filed on Oct. 21, 2016 including the specification, drawings and abstract is incorporated herein by reference in its entirety.The invention relates to a grease composition and a rolling bearing in which the grease composition is sealed.Japanese Patent Application Publication No. 2010-65171 (JP 2010-65171 A) discloses a grease composition for use with motor bearings, which contains a base oil made of a perfluoropolyether oil, a thickener made of polytetrafluoroethylene, and silica as inorganic particles.In a bearing in which grease is sealed as a lubricant, the grease significantly affects the torque performance of the bearing. To assure low-torque performance in the bearing, it is preferred that the high-temperature viscosity of the grease be reduced, so that during rotation of the bearing, the grease flows in regions (such as seals and a cage) that are unlikely to affect torque. When the grease has high fluidity, however, the grease may leak through minute gaps or the like present in the bearing.One object of the present invention is to provide a grease composition that can provide both low-torque performance and resistance to grease leakage, as well as a rolling bearing in which the grease composition is sealed.According to an aspect of the present invention a grease composition contains a base oil including an ester oil, and a thickener including diurea represented by ...

GREASE COMPOSITION AND ROLLING DEVICE

The present invention relates to: a grease composition that includes a base oil which has a pressure-viscosity coefficient as measured at 40° C. of 33 GPaor less and a thickener which is contained in a projected-area proportion of 10% by area or higher; and a rolling device packed with the grease composition. 1. A grease composition comprising a base oil which has a pressure-viscosity coefficient as measured at 40° C. of 33 GPaor less and a thickener which is contained in a projected-area proportion of 10% by area or higher.2. A rolling device comprising an inner ring claim 1 , an outer ring and a plurality of rolling elements freely rollably held between the inner ring and the outer ring by means of a cage claim 1 , wherein the rolling device is packed with the grease composition according to .3. The grease composition according to claim 1 , {'br': None, 'sub': 2', '1', '3, 'R—NHCONH—R—NHCONH—R\u2003\u2003General formula (I)'}, 'wherein the thickener is a diurea compound represented by the following general formula (I) or general formula (II), and an amount of the thickener is 10-40% by mass based on the whole grease composition{'sub': 1', '2', '3', '2', '3, 'claim-text': {'br': None, 'sub': 5', '4', '6, 'R—NHCONH—R—NHCONH—R\u2003\u2003General formula (II)'}, 'in general formula (I), Rrepresents an aromatic hydrocarbon group having 6-15 carbon atoms, Rand Reach represent an aromatic hydrocarbon group having 6-12 carbon atoms, and Rand Rmay be the same or different{'sub': 4', '5', '6', '5', '6', '5', '6, 'in general formula (II), Rrepresents an aromatic hydrocarbon group having 6-15 carbon atoms, Rand Reach represent an aliphatic hydrocarbon group having 6-20 carbon atoms or a cyclohexyl derivative group having 6-12 carbon atoms, a proportion of the cyclohexyl derivative group in the whole Rand Rmoieties is 50-90% by mole, and Rand Rmay be the same or different.'}4. The grease composition according to claim 3 ,wherein the thickener is a diurea compound represented ...

Articles having low coefficients of friction, methods of making the same, and methods of use

Briefly described, embodiments of this disclosure include articles and methods of making articles.

METHOD OF MAKING A GREASE THICKENER AND THE THICKENER MADE BY THE METHOD

A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocayante in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials. 1. A process comprising providing at least one amine and a first base oil to a rotor stator mixer which is operating at a shear rate of less than 5000 reciprocal seconds (1/sec) , adding a isocyanate to the mixer in the shear zone and in a position such that a residence time in the mixer after addition of the isocyanate is less than 20 seconds to produce a paste comprising a polyurea.2. The process of characterized in that the process is continuous.3. The process of wherein the at least one amine is a mixture comprising a first linear primary amines having six to eighteen carbon atoms and either a second linear primary amines having six to eighteen carbon atoms or a cyclic primary amine.4. The process of wherein the residence time is less than 10 seconds.5. The process of wherein the residence time is less than 5 seconds.6. The process of wherein the at least one amine is a primary amine and the isocyanate is a di-isocyanate such that the poly urea formed is a diurea.7. The process of wherein the at least one amine comprises an alkylamine and a fatty amine.8. The process of wherein the paste comprises at least 20 weight percent of the polyurea.9. The process of wherein the first base oil is selected from API Groups I claim 1 , II claim 1 , III claim 1 , IV or V.10. The process of further comprising diluting the paste with a ...

LUBRICATING OIL FOR PRESS WORKING

A lubricating oil for press working contains a base oil and a fat or oil-containing additive and a calcium-containing additive added to the base oil. The proportion of the fat or oil-containing additive with respect to the whole volume of the lubricating oil for press working is 10 to 30%. The proportion of the calcium-containing additive with respect to the whole volume of the lubricating oil for press working is 5 to 15%. 1. A lubricating oil for press working , comprising:a base oil; anda fat or oil-containing additive and a calcium-containing additive added to the base oil, whereina proportion of the fat or oil-containing additive with respect to the whole volume of the lubricating oil for press working is 10 to 30%, anda proportion of the calcium-containing additive with respect to the whole volume of the lubricating oil for press working is 5 to 15%.2. The lubricating oil for press working according to claim 1 , wherein the calcium-containing additive comprises a calcium petroleum sulfonate.3. A lubricating oil for press working claim 1 , comprising:a base oil; anda fat or oil-containing additive and a sodium-containing additive added to the base oil, whereina proportion of the fat or oil-containing additive with respect to the whole volume of the lubricating oil for press working is 10 to 30%, anda proportion of the sodium-containing additive with respect to the whole volume of the lubricating oil for press working is 5 to 20%.4. The lubricating oil for press working according to claim 3 , wherein the sodium-containing additive comprises a sodium petroleum sulfonate.5. The lubricating oil for press working according to claim 1 , wherein the fat or oil-containing additive comprises a phosphate ester.6. The lubricating oil for press working according to claim 3 , wherein the fat or oil-containing additive comprises a phosphate ester. The present invention relates to a lubricating oil for press working.When workpieces such as separators for fuel cells are press ...

LUBRICANT COMPOSITION FOR SHOCK ABSORBERS, METHOD FOR PRODUCING SAME, DAMPING METHOD AND SHOCK ABSORBER

Provided are a lubricating oil composition for shock absorber, containing a base oil and a comb polymer having a mass average molecular weight of 5×10or more and 1×10or less, which has a high viscosity index and provides a shock absorber capable of keeping a damping force thereof substantially constant at any temperature and exhibiting excellent damping force characteristics; a method of producing the lubricating oil composition for shock absorber; a damping method; and a shock absorber. 1. A lubricating oil composition for shock absorber , the lubricating oil composition comprising a base oil and a comb polymer having a mass average molecular weight of 5×10or more and 1×10or less.2. The lubricating oil composition for shock absorber according to claim 1 , wherein a content of the comb polymer in terms of a resin component is 1% by mass or more and 10% by mass or less on the basis of a whole amount of the composition.3. The lubricating oil composition for shock absorber according to claim 1 , wherein a mass average molecular weight of the comb polymer is 3×10or more and 8×10or less.4. The lubricating oil composition for shock absorber according to claim 1 , wherein a kinematic viscosity at 40° C. of the base oil is 1 mm/s or more and 8 mm/s or less.5. The lubricating oil composition for shock absorber according to claim 1 , which has a kinematic viscosity at 40° C. of 5 mm/s or more and 35 mm/s or less.6. The lubricating oil composition for shock absorber according to claim 1 , which has a viscosity index of 380 or more.7. The lubricating oil composition for shock absorber according to claim 1 , which is adapted to function as a lubricating oil composition for a shock absorber of a two-wheeled vehicle.8. A shock absorber claim 1 , comprising the lubricating oil composition for shock absorber according to .9. A method of damping sways or vibrations claim 1 , the method comprising lubricating a shock absorber with the lubricating oil composition according to .10. A ...

GREASE COMPOSITION AND SLIDING MEMBER COATED THEREWITH

Grease composition contains (A) a straight-chain perfluoropolyether having a kinematic viscosity of 2-110 mm/s at 40° C., (B) a branched perfluoropolyether having a kinematic viscosity of 2-100 mm/s at 40° C., and (C) a fluorocarbon resin powder having a primary particle size of 1 μm or less, wherein the contained amount of the fluorocarbon resin powder is 25-40 wt % with respect to the weight of the grease composition, and the weight ratio of the straight-chain perfluoropolyether (A) to the branched perfluoropolyether (B) is 15:85 to 70:30. 1. A grease composition comprising: (A) a perfluoropolyether that has a kinematic viscosity of 2-110 mm/sec at 40□ and that is represented by general formula (1){'br': None, 'sub': 2', '2', 'm', '2', 'n, 'RfO(CFCFO)(CFO)Rf\u2003\u2003(1)'}{'sub': 1-4', '2', '2', '2, '(where Rf is a Cperfluoro lower alkyl group, m and n are each an integer ≥0, the sum of m and n is 30-190, and the CFCFO and CFO groups are randomly bonded in the main chain);'}{'sup': '2', 'claim-text': {'br': None, 'sub': 3', '2', 'p', '2', 'r, 'RfO(CF(CF)CFO)(CFO)Rf\u2003\u2003(2)'}, '(B) a perfluoropolyether that has a kinematic viscosity of 2-100 mm/sec at 40□ and that is represented by general formula (2)'}{'sub': 1-4', '3', '2', '2, '(where Rf is a Cperfluoro lower alkyl group, p is a positive number, r is a number ≥0, the sum of p and r is 5-50, and the CF(CF)CFO and CFO groups are randomly bonded in the main chain); and'}(C) a fluororesin powder having a primary particle size ≤1 μm,wherein the fluororesin powder content is 25-40 wt % based on the weight of the grease composition, and the perfluoropolyether (A) to perfluoropolyether (B) weight ratio is 15:85 to 70:30.2. The grease composition as claimed in claim 1 , furthermore containing (D) polyolefin particles having a viscosity-average molecular weight of 500 claim 1 ,000-7 claim 1 ,000 claim 1 ,000 and a particle size ranging from 10-200 μm in an amount of 1.5-10 wt % based on the weight of the grease ...

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.

POLYMER GREASE MANUFACTURING PROCESS

A process for the manufacture of a lubricating grease composition, the process comprising steps of: (a) providing an essentially homogeneous liquid composition comprising a lubricating oil and a thickening polymer, and (b) flowing the liquid composition through a shear-mixing device to mix and cool the liquid composition to form a lubricating grease composition. 1. A process for a manufacture of a lubricating grease composition , the process comprising steps of:providing an essentially homogeneous liquid composition comprising a lubricating oil and a thickening polymer;flowing the essentially homogeneous liquid composition through a shear-mixing device to mix and cool the essentially homogeneous liquid composition to form the lubricating grease composition,wherein the thickening polymer forms from 5 to 20 wt % of the essentially homogeneous liquid composition,wherein the liquid composition flows through the shear-mixing device along a flow-path provided with one or more temperature-controlled portions to each at least one of heat and cool the liquid composition,wherein the shear-mixing device comprises at least one pair of heat-transfer plates between which the liquid composition is flowed,wherein the surface of at least one plate is provided with surface features in a flow path of the liquid composition which act as baffles for the flow of the liquid composition, causing shear-mixing.2. The process according to claim 1 , wherein the essentially homogeneous liquid composition is provided at a temperature of from 150 to 350° C. from 200 to 250° C.3. The process according to claim 1 , wherein the lubricating oil comprises oils selected from mineral oils claim 1 , synthetic hydrocarbons claim 1 , ester oils claim 1 , vegetable oils and mixtures of two or more thereof.4. The process according to claim 1 , claims claim 1 , the thickening polymer further comprising a polymer selected from polyamides claim 1 , polyesters claim 1 , polyethylene oxides claim 1 , polyethylene ...

ORGANIC FLUORINE COMPOUND AND LUBRICANT

In an organic fluorine compound, an organic group including a single aromatic ring or a condensed ring consisting of aromatic rings at a non-bonded terminal is bonded to each of all of terminals of a chain structure including a perfluoropolyether structure. 1. An organic fluorine compound , comprising:a chain structure including a perfluoropolyether structure, an organic group being bonded to each of all of terminals of the chain structure, the organic group including a single aromatic ring or a condensed ring consisting of aromatic rings at a non-bonded terminal.2. The organic fluorine compound according to claim 1 , wherein the chain structure is a straight chain group.3. The organic fluorine compound according to claim 1 , wherein the organic group is bonded to each of all of the terminals of the chain structure via an ether bond or a carboxylate ester bond whose carbonyl group being positioned at a side of the organic group.5. The organic fluorine compound according to claim 4 , wherein carbon number of each of “R” and “R” is claim 4 , independently claim 4 , less than or equal to 15.6. The organic fluorine compound according to claim 4 , wherein “R” and “R” are the same.7. The organic fluorine compound according to claim 4 , wherein “E” and “E” are the same.9. The organic fluorine compound according to claim 1 , wherein the chain structure includes at least one group expressed by a general formula (6) claim 1 , where “x” is an integer from 1 to 5.{'br': None, 'sub': 2', 'x, '—(CF)O—\u2003\u2003(6)'}10. The organic fluorine compound according to claim 9 , wherein the chain structure includes a group expressed by a general formula (7) claim 9 , where each of “y” and “z” is claim 9 , independently claim 9 , an integer from 1 to 50.{'br': None, 'sub': 2', '2', 'y', '2', 'z, '—(CFCFO)(CFO)—\u2003\u2003(7)'}11. The organic fluorine compound according to claim 1 , wherein the chain structure consists of the perfluoropolyether structure(s) and one or more methylene ...

COMPOSITION FOR USE IN OILS

A composition comprising a sheared antifoam solution/mixture with a mean particle size from about 0.01 microns to about 0.5 microns and a maximum particle size of less than about 1 micron. In this composition the sheared antifoam solution/mixture comprises antifoam solution/mixture comprising an antifoam and a base stock. 1. A composition comprising:a sheared antifoam mixture with a mean particle size from about 0.01 microns to about 0.5 microns and a maximum particle size of less than about 1 micron,wherein the sheared antifoam mixture comprises antifoam mixture comprising an antifoam and a base stock.2. The composition of claim 1 , wherein the antifoam is selected from the group consisting of: organo-modified siloxane claim 1 , silicone claim 1 , flurosilicone claim 1 , polyacrylate and combinations thereof.3. The composition of claim 1 , wherein the base stock is selected from the group consisting of: esters claim 1 , polyalkylene glycols claim 1 , alkylated naphthalenes claim 1 , polyalphaolefins claim 1 , petroleum mineral oils based on aromatic claim 1 , naphthenic or paraffinic crude oils claim 1 , or combinations thereof.4. The composition of claim 1 , wherein the antifoam mixture does not contain a solubilizing agent.5. The composition of claim 1 , wherein the amount of antifoam ranges from about 20 wt % to about 80 wt % of the antifoam mixture.6. The composition of claim 1 , wherein the amount of antifoam ranges from about 40 wt % to about 60 wt % of the antifoam mixture.7. The composition of claim 1 , wherein the amount of base stock ranges from about 20 wt % to about 80 wt % of the antifoam mixture.8. The composition of claim 1 , wherein the amount of base stock ranges from about 30 wt % to about 70 wt % of the antifoam mixture.9. The composition of claim 1 , wherein the amount of base stock ranges from about 40 wt % to about 60 wt % of the antifoam mixture.10. The composition of claim 1 , wherein the antifoam mixture is sheared with a shear device to ...

LUBRICANT COMPOSITIONS COMPRISING POLYMERIC DIPHENYLAMINE ANTIOXIDANTS

Disclosed in certain embodiments is a lubricating oil composition comprising an antioxidant polymer (e.g., oligomer) composition comprising repeat units of diphenylamine monomers of formula I 2. The lubricating oil composition according to claim 1 , comprising one or more components selected from the group consisting of other antioxidants claim 1 , antiwear additives claim 1 , viscosity index improvers claim 1 , detergents claim 1 , dispersants claim 1 , pour point depressants claim 1 , corrosion inhibitors claim 1 , metal deactivators claim 1 , seal compatibility additives claim 1 , antifoam agents claim 1 , inhibitors claim 1 , antirust additives claim 1 , and friction modifiers.3. The lubricating oil composition according to claim 1 , wherein the Mn of the polymer composition is from about 400 g/mol to about 5000 g/mol.4. The lubricating oil composition according to claim 1 , wherein R claim 1 , R claim 1 , Rand Rare each independently H or a linear or branched C-Calkyl.5. The lubricating oil composition according to claim 1 , wherein R is H.6. The lubricating oil composition according to claim 1 , wherein the polymer composition further comprises one or more monomers selected from the group consisting of other diphenylamines claim 1 , phenothiazines claim 1 , phenoxazines claim 1 , aminodiphenylamines claim 1 , methylenedianiline claim 1 , toluenediamine claim 1 , aminophenols claim 1 , alkylphenols claim 1 , thiophenols claim 1 , phenylenediamines claim 1 , quinolines claim 1 , phenyl pyridinediamines claim 1 , pyridinepyrimidinediamines and phenylpyrimidinediamines.7. The lubricating oil composition according to claim 1 , wherein the polymer composition comprises from about 10 mol % to about 99 mol % diphenylamine monomers.8. The lubricating oil composition according to claim 1 , wherein the polymer composition comprises <70 wt % residual monomers of formula I.9. The lubricating oil composition according to claim 1 , wherein the polymer composition comprises ...

ULTRA-FLUID LUBRICATING COMPOSITION

In the field of lubricating compositions for motor vehicles, there is disclosed a lubricating composition of a grade according to the SAEJ300 classification defined by the formula (X) W (Y) wherein X represents 0 or 5 and Y represents an integer ranging from 4 to 20. This lubricating composition includes at least one polyalphaolefinic oil (PAO), from 10 to 80% by weight of the composition of at least one oil of group V and at least one comb polymer. Also isclosed is the use of this lubricating composition for improving the Fuel Eco (FE) of a lubricant or for reducing the fuel consumption of an engine, in particular a motor vehicle engine, notably a motor of a hybrid vehicle. 118-. (canceled)20. The lubricant composition according to of a grade according to the SAEJ300 classification selected from among 0W4 claim 19 , 0W8 claim 19 , 0W12 claim 19 , 0W16 claim 19 , 0W20 claim 19 , 5W4 claim 19 , 5W8 claim 19 , 5W12 claim 19 , 5W16 claim 19 , 5W20.21. The lubricant composition according to claim 19 , for which the cinematic viscosity measured at 40° C. according to the ASTM D445 standard ranges from 12 to 30 mm.s.22. The lubricant composition according to for which the cinematic viscosity of the PAO claim 19 , measured at 100° C. according to the ASTM D445 standard claim 19 , ranges from 1.5 to 6 mm.sor from 2 to 8 mm.sor further from 2 to 6 mm.s.23. The lubricant composition according to for which the average molecular mass by weight of the PAO is less than 500 Da or ranges from 50 to 500 Da or ranges from 50 to 350 Da or from 50 to 300 Da.24. The lubricant composition according to comprising from 20 to 80% claim 19 , from 30 to 60% or from 35 to 45% by weight of the oil composition of group V.25. The lubricant composition according to claim 19 , for which the oil of group V is selected from among a monoester claim 19 , a polyalkylene-glycol (PAG).27. The lubricant composition according to claim 19 , for which the comb polymer for which the pendant chains are obtained ...

HIGH TEMPERATURE LUBRICANTS FOR MAGNETIC MEDIA

High temperature lubricants for magnetic media are provided. One such lubricant includes fluoroalkyl, fluoroalkenyl, perfluoroalkyl, or perfluoroalkyl ether segments, anchoring functional groups engageable with a protective overcoat of a magnetic recording media, and cyclic functional groups. The lubricants can be used in conjunction with a magnetic recording medium and/or a magnetic data storage system. 1. A lubricant comprising: a plurality of segments according to general formula (I) , (II) , or (III):{'br': None, 'sup': 1', '1', '2', '2, 'Re—Rb-Rc-Rb—Re\u2003\u2003(I);'}{'br': None, 'sup': 1', '1', '2, 'Re—Rb—Re\u2003\u2003(II); or'}{'br': None, 'sup': 1', '1', '2', '2, 'sub': 'm', 'Re—Rb—(Rc-Rb)—Re\u2003\u2003(III);'}wherein Rc, when present, is a divalent linking segment comprising an anchoring functional group engageable with a protective overcoat of a magnetic recording media;{'sup': 1', '2, 'wherein each Rband Rb, when present, independently comprises a chain segment comprising at least one of a fluoroalkyl ether moiety, a fluoroalkenyl ether moiety, a perfluoroalkyl ether moiety, a perfluoroalkenyl ether moiety, or a combination thereof;'}{'sup': 1', '2, 'wherein each of Reand Reindependently comprises an anchoring functional group engageable with a protective overcoat of a magnetic recording media, and'}{'sup': 1', '2, 'sub': 3', '50', '3', '50', '3', '50', '5', '50', '10', '50', '5', '50, 'wherein one or more of Re, Re, and Rc, independently comprises a cyclic functional group comprising at least one of an alicyclic C-Calkyl radical, an alicyclic C-Calkenyl radical, a heterocyclic C-Cradical, an aromatic C-Cradical, a polycyclic aromatic C-Cradical, a heteroaromatic C-Cradical, a cyclotriphosphazine radical, or a combination thereof.'}2. The lubricant of claim 1 , wherein at least one anchoring functional group claim 1 , at least one cyclic functional group claim 1 , or a combination thereof claim 1 , further comprises at least one of B claim 1 , Si ...

Hybrid Grease with Low Friction Coefficients and High Wearing Protection

A hybrid grease is provided having low coefficients of friction and high wear protection which is employable over a wide temperature range. The hybrid grease includes a combination of a grease based on a silicone oil in conjunction with a grease based on synthetic hydrocarbon oils, mineral oils or polyglycols. The hybrid grease may especially be used to lubricate joints in vehicle parts based on plastic-steel pairings. 1. A hybrid grease comprising(A) 10% to 50% by weight of a grease based on a synthetic hydrocarbon oil, mineral oil or polyglycol containing 50% to 90% by weight of base oil selected from synthetic hydrocarbon oil, PAO, mineral oil and polyglycol, 10% to 25% by weight of thickener, 0% to 10% by weight of additives, and(B) 50 to 90% by weight of a silicone grease containing 70% to 90% by weight of silicone oil selected from the group consisting of polydimethylsiloxane, polyphenylmethylsiloxane and mixtures thereof, 5% to 30% by weight of thickener and 0% to 10% by weight of additives.2. The hybrid grease as claimed in further comprising(A) 10% to 20% by weight of a grease based on a synthetic hydrocarbon oil, mineral oil or polyglycol containing 70% to 80% by weight of base oil selected from synthetic hydrocarbon oil, PAO, mineral oil and polyglycol, 10% to 20% by weight of thickener, 1% to 7% by weight of additives, and(B) 80 to 90% by weight of a silicone grease containing 70% to 80% by weight of silicone oil selected from the group consisting of polydimethylsiloxane, polyphenylmethylsiloxane and mixtures thereof, 10% to 30% by weight of thickener and 1% to 10% by weight of additives.3. The hybrid grease as claimed in claim 1 , further comprising in the component (A) 0% to 50% by weight of a solid lubricant.4. The hybrid grease as claimed in any claim 1 , wherein the synthetic hydrocarbon oil is an oil selected from the group consisting of PAO claim 1 , mixtures of PAO and olefin copolymers claim 1 , mixtures of PAO and polyisobutylene.5. A method of ...

METHOD FOR PREPARING A TETRAFLUORO-1,2-EPOXYPROPANE

A method for preparing a tetrafluoro-1,2-epoxypropane comprising reacting a 3-acetoxy-2-bromo-tetrafluoropropane with an alkaline or alkaline earth metal hydroxide solution to provide a tetrafluoro-1,2-epoxypropane, and partially fluorinated polyethers of formula [OCRRCRR]wherein n is from 5 to 100, R is F or H, Ris CF, Ris F or H and Ris H. 1. A method for preparing a tetrafluoro-1 ,2-epoxypropane comprising reacting a 3-acetoxy-2-bromo-tetrafluoropropane with an alkaline or alkaline earth metal hydroxide solution to provide a tetrafluoro-1 ,2-epoxypropane.2. The method according to claim 1 , wherein the 3-acetoxy-2-bromo-tetrafluoropropane is 3-acetoxy-2-bromo-1 claim 1 ,1 claim 1 ,1 claim 1 ,2-tetrafluoropropene or 3-acetoxy-2-bromo-1 claim 1 ,1 claim 1 ,1 claim 1 ,2-tetrafluoropropene claim 1 , which is reacted with sodium or potassium hydroxide to form 2 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoro-1 claim 1 ,2-epoxypropane or 1 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoro-1 claim 1 ,2-epoxypropane.3. The method of claim 1 , wherein the alkaline earth metal hydroxide is sodium hydroxide.4. The method of claim 1 , wherein the alkaline earth metal hydroxide is potassium hydroxide.5. A method for preparing a partially fluorinated polyether claim 1 , comprising polymerising 2 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoro-1 claim 1 ,2-epoxypropane or 1 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoro-1 claim 1 ,2-epoxypropane to provide a partially fluorinated polyether of formula [OCRRCRR] claim 1 , wherein R is H claim 1 , Ris CF claim 1 , Ris H and Ris F or R is F claim 1 , Ris CF claim 1 , Ris H and Ris H claim 1 , wherein n is from 5 to 100.6. The method according to claim 5 , further comprising reacting a 2-bromo-tetrafluoropropan-3-ol with an alkaline or alkaline earth metal hydroxide solution to provide 2 claim 5 ,3 claim 5 ,3 claim 5 ,3-tetrafluoro-1 claim 5 ,2-epoxypropane or 1 claim 5 ,3 claim 5 ,3 claim 5 ,3-tetrafluoro-1 claim 5 ,2-epoxypropane.7. The method ...

LOW PROFILE LUBRICANTS FOR DATA STORAGE DEVICES

Low-profile thermally stable lubricants for data storage devices are provided based on multi-dentate molecular designs. One such lubricant comprises perfluoroalkyl ether segments, a divalent linking segment, and anchoring functional groups attachable to, or engageable with, a protective overcoat of a magnetic recording medium. The lubricants can be used in conjunction with a magnetic recording medium and/or a magnetic data storage system. 3. The lubricant of claim 1 , wherein each anchoring functional group comprises claim 1 , at least one of B claim 1 , Si claim 1 , a pnictogen claim 1 , a chalcogen claim 1 , a halogen claim 1 , —OR* claim 1 , —NR* claim 1 , —NR*—CO—R* claim 1 , —O—CO—R* claim 1 , —CO—O—R* claim 1 , —SeR* claim 1 , —TeR* claim 1 , —PR* claim 1 , —PO—(OR*) claim 1 , —O—PO—(OR*) claim 1 , —N═P(NR*) claim 1 , —AsR* claim 1 , —SR* claim 1 , —SO—(OR*) claim 1 , —BR* claim 1 , —SiR* claim 1 , —(CH)—SiR* claim 1 , —(CF)—SiR* claim 1 , or a combination thereof claim 1 , wherein q is 1 to 10 and each R* is claim 1 , independently claim 1 , a hydrogen claim 1 , B claim 1 , Si claim 1 , a pnictogen claim 1 , a chalcogen claim 1 , a halogen claim 1 , a saturated C-Cradical claim 1 , an unsaturated C-Cradical claim 1 , an aromatic C-Cradical claim 1 , a polycyclic aromatic C-Cradical claim 1 , a heteroaromatic C-Cradical claim 1 , an alicyclic C-Cradical claim 1 , and/or a heterocyclic C-Cradical claim 1 , and wherein two or more R* may join together to form a ring structure.4. The lubricant of claim 1 , wherein at least one anchoring functional group comprises a hydroxyl moiety (—OH).7. The lubricant of claim 5 , wherein at least one anchoring functional group comprises a hydroxyl moiety (—OH).8. The lubricant of claim 1 , wherein each of Rband Rbindependently comprises one or more of general formulas (ia) through (va):{'br': None, 'sub': 2', '2', '2', '2', '2', '2', '2', 'a', '2', '2', '2, '—CFCFCFO(CFCFCFCFO)CFCFCF-; \u2003\u2003(ia)'}{'br': None, 'sub': 2', ...

LUBRICANT COMPOSITION

The present invention provides a non-aqueous lubricant composition comprising a base stock and 5 at least 0.02 wt % of a friction reducing additive which comprises a block co-polymer of at least one block A which is an oligo- or polyester residue of a hydroxycarboxylic acid and at least one block B which is a residue of a polyalkylene glycol. The invention also provides the use of a block co-polymer of at least one block A which is an oligo- or polyester residue of a hydroxycarboxylic acid and at least one block B which is a residue of a polyalkylene glycol to reduce the kinetic co-efficient of friction in a non-aqueous lubricant composition when compared to an equivalent lubricant composition comprising no block co-polymer. 1. A non-aqueous lubricant composition comprising:a base stock; andat least 0.02 wt % of a friction reducing additive which comprises a block co-polymer of at least one block A which is an oligo- or polyester residue of a hydroxycarboxylic acid and at least one block B which is a residue of a polyalkylene glycol.2. A non-aqueous lubricant composition as claimed in wherein the hydroxycarboxylic acid is a hydroxystearic acid.3. A non-aqueous lubricant composition as claimed in wherein the polyalkylene glycol is a polyethylene glycol4. A non-aqueous lubricant composition as claimed in claim 1 , wherein the molecular weight of the block A is in the range 1000 to 2500.5. A non-aqueous lubricant composition as claimed in wherein the molecular weight of the block B is in the range 400 to 4600.6. A non-aqueous lubricant composition as claimed in wherein the number average molecular weight of the block co-polymer is in the range 3000 to 5000.7. A non-aqueous lubricant composition as claimed in wherein the block co-polymer has the structure AB or ABA.8. A non-aqueous lubricant composition as claimed in wherein the block co-polymer has an HLB value of at least 6.5.9. A non-aqueous lubricant composition as claimed in wherein the base stock is selected from ...

LUBRICATING OIL COMPOSITION, VISCOSITY MODIFIER FOR LUBRICATING OIL, AND ADDITIVE COMPOSITION FOR LUBRICATING OIL

An object of the present invention is to provide a lubricating oil composition particularly excellent in viscosity characteristics at a low temperature. The present invention provides: a lubricating oil composition including a polymer (A) and a base oil (B), wherein the polymer (A) satisfies the following requirement (A-1), and the content ratio of the polymer (A) and the base oil (B) is such that the ratio of a resin (A) is within the range of from 0.1 to 50 parts by mass with respect to 100 parts by mass of the total amount of the polymer (A) and the base oil (B). (A-1) The polymer (A) is a polymer containing a structural unit derived from an α-olefin having 20 or less carbon atoms. 1. A lubricating oil composition comprising a polymer (A) and a base oil (B) ,wherein the polymer (A) satisfies the following requirement (A-1):(A-1) the polymer (A) is a polymer containing a structural unit derived from an α-olefin having 20 or less carbon atoms; andwherein the content ratio of the polymer (A) and the base oil (B) is such that the ratio of the polymer (A) is within the range of from 0.1 to 50 parts by mass with respect to 100 parts by mass of the total amount of the polymer (A) and the base oil (B).2. A lubricating oil composition comprising: a resin (A1) containing the polymer (A) recited in ; and a base oil (B);wherein the resin (A1) satisfies the following requirements (A-2) to (A-4):(A-2) the resin (A1) has an intrinsic viscosity [η] as measured in decalin at 135° C. of within the range of from 0.01 to 5.0 dl/g;(A-3) the resin (A1) has a melting point (Tm) as measured by differential scanning calorimetry (DSC) of less than 110° C., or has no detected melting point (Tm); and(A-4) the resin (A1) has a glass transition temperature (Tg) as measured by differential scanning calorimetry (DSC) of within the range of from −10 to 50° C.; [{'sup': '2', '(B-1) the base oil (B) has a kinematic viscosity at 100° C. of within the range of from 1 to 50 mm/s; and'}, 'wherein the ...

BEARING GREASE

A bearing grease contains a base oil and a thickener. The base oil is a base oil mixture containing a polyalphaolefin and an ester. The bearing grease is used in an atmosphere of a fluorine compound refrigerant containing no hydrogen. A bearing using the bearing grease does not cause elution of grease for a long time. Further, since there is no need for a collecting system unlike lubricating oil, the arrangement around the bearing can be made compact. Thus, the bearing can be easily applied in a form of an energy recovery equipment to a vehicle or various industrial machineries. 110-. (canceled)11. A method , comprising:lubricating a bearing using a grease, the grease comprising:a base oil; anda thickener, wherein {'br': None, 'sup': 1', '2', '3, 'RNHCONHRNHCONHR\u2003\u2003(1)'}, 'the base oil is a base oil mixture comprising a polyalphaolefin and an aromatic ester, a mass ratio of the polyalphaolefin to the aromatic ester is in a range from 50:50 to 93:7, and the thickener is a urea thickener represented by the following formula (1),'}{'sup': 1', '3, 'where Rand Rrespectively independently represent: a monovalent linear hydrocarbon group having 6 to 22 carbon atoms; a monovalent alicyclic hydrocarbon group having 6 to 12 carbon atoms; or a monovalent aromatic hydrocarbon group having 6 to 12 carbon atoms, and'}{'sup': '2', 'Rrepresents a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms, the bearing grease being used in an atmosphere of a fluorine compound refrigerant containing no hydrogen.'}12. The method according to claim 11 , wherein 10 mass % or more of the hydrocarbon groups represented by R1 and R3 is occupied by a monovalent alicyclic hydrocarbon group having 6 to 12 carbon atoms.13. The method according to claim 11 , wherein a worked penetration of the grease is in a range from 200 to 380.14. The method according to claim 11 , wherein the fluorine compound refrigerant is at least{'sub': 3', '2', '3', '2', '3', '3', '2', '2', '3, 'one of ...