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

FIELD: lubricant materials. SUBSTANCE: invention proposes a consistent lubricant comprising oily base and thickening agent involves additionally from 0.05% to 30% weight parts of sodium thiosulfate and at least 0.1 % weight part of one or some addition agent (A) taken among the group including calcium salicylate, magnesium salicylate, calcium phenolate and/or calcium sulfonate as measure for all lubricant mass. Indicated consistent lubricant is used for prevention of corrosion and enhancing wear resistance. The consistent lubricant is prepared by preliminary mixing sodium thiosulfate with one or some addition agents (A) and addition of a lubricant-base mixture comprising the base oil and a thickening agent, or by addition sodium thiosulfate and one or some addition agents (A) to the lubricant base separately. Invention provides enhancing corrosion-inhibiting properties and wear-resistance property with retaining anti-scuffing properties. EFFECT: improved preparing method, enhanced and valuable technical properties of lubricant. 10 cl, 9 tbl, 90 ex ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2 263 137 (13) C2 C 10 M 163/00//(C 10 M 163/00, 125:22, 129:10, 129:54, 117:00), C 10 N 30:06, 40:02, 50: 10 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2003106404/04, 10.08.2001 (24) Äàòà íà÷àëà äåéñòâè ïàòåíòà: 10.08.2001 (30) Ïðèîðèòåò: 10.08.2000 (ïï.1-10) JP 242911/00 (72) Àâòîð(û): ÎÇÀÊÈ Òàêàõèðî (JP), ÑÈÍÎÄÀ Íîðè êè (JP), ÍÀÊÀÇÀÂÀ Êîóèòè (JP) (45) Îïóáëèêîâàíî: 27.10.2005 Áþë. ¹ 30 2 2 6 3 1 3 7 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 4923625 A, 03.04.1991. WO 9905240 A1, 04.02.1999. WO 9219703 A1, 12.11.1992. RU 2160766 C1, 20.12.2000. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 11.03.2003 2 2 6 3 1 3 7 R U (87) Ïóáëèêàöè PCT: WO 02/12418 (14.02.2002) C 2 C 2 (86) Çà âêà PCT: EP 01/09347 (10.08.2001) Àäðåñ äë ïåðåïèñêè: 103735, Ìîñêâà, óë.Èëüèíêà, 5/2, ...

Schmiermittel für Gleichlaufgelenke

SCHMIERFETTZUSAMMENSETZUNG FÜR HOMOKINETISCHE KUPPLUNG

Schmiermittel für Gleichlaufgelenke

Ein Schmiermittel für Gleichlaufgelenke umfasst die folgenden Komponenten: (a) ein Grundöl; (b) ein Diharnstoff-Verdickungsmittel; (c) sulfurisiertes, molybdänhaltiges Dialkyldithiocarbamat; (d) Molybdändisulfid; (e) wenigstens ein schwefel-/ phosphorhaltiges Hochdruckmittel, ausgewählt aus Zinkdithiophosphatverbindungen und Thiophosphaten; und (f) ein Fettsäureamid. Das erfindungsgemäße Schmiermittel besitzt eine große Fähigkeit zur Verminderung der induzierten Schubkraft und ist ausgezeichnet haltbar.

Greases for homokinetic joints incorporating an organic molybdenum compound

Improved greases for use in homokinetic joints are proposed which comprise a base oil, a thickening agent, and an organic molybdenum compound. Greases comprising a base oil, a thickening agent, an organic molybdenum compound, and an organic zinc compound are also proposed. These greases exhibit smaller friction coefficients than conventional greases used for this purpose. On the homokinetic joint lubricated with the grease according to the present invention, the axial force produced is reduced and vibrations generated on the engine are absorbed. The vehicle is prevented from vibrating. The use of an expensive organic metallic extreme-pressure additive is unnecessary.

GREASE FOR HOMOKINETIC JOINT

Grease composition for constant velocity joint

A grease composition for use in a constant velocity joint comprises a urea grease composed of a lubricating oil and a urea base thickener and containing (A) 1-5% by weight of a molybdenum sulfide dialkyldithiocarbamate; (B) 0.2-1% by weight of molybdenum disulfide; (G) 0.5-3% by weight of a zinc dithiophosphate extreme pressure additive of the formula: (wherein R is an alkyl or aryl group); and (D) 0.5-5% by weight of an oiliness agent composed of at least one of vegetable oils and fats; provided that the weight ratio of component (B) to component (A) is 0.04-0.5.

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. ...

GREASE-SEALED ROLLING CONTACT BEARING

GREASE COMPOSITION.

GREASE COMPOSITION

GREASE COMPOSITION FOR CONSTANT VELOCITY JOINTS

Grease composition for constant velocity joints comprising a base oil and urea- based thickener, which grease further comprises, (A) from 0.1 to 10 % by weight of an optionally substituted molybdenum-organocyclic compound containing at least 5 ring atoms, wherein each ring atom attached directly to the molybdenum atom is a hetero atom, (B) from 0.1 to 5 % by weight of at least one sulphur-containing additive chosen from the group consisting of sulphur olefins, sulphur-phosphorus extreme-pressure agents, ashless dithiocarbamates, polysulphides, thiadiazoles and zinc dithiocarbamate, and (C) from 0.1 to 5 % by weight of at least one phosphorus-containing additive chosen from the group consisting of molybdenum dithiophosphate, zinc dithiophosphate and triphenylphosphorothionate; a method of lubricating a constant velocity joint comprising packing it with said grease according and a constant velocity joint packed with said grease.

GREASE COMPOSITION

Grease compositions including borated epoxides as friction-reducing additives, are thickened with a proportion of metal hydroxy-containing soap grease thickener. Such compositions have unexpectedly high dropping points.

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.

LUBRICATING COMPOSITION

A lubricating composition contains a base oil and an organomolybdenum compound and has a sodium content of not greater than 200 ppm. The limited content of a sodium metal allows the organomolybdenum compound to fully exhibit its peculiar physical performance in that composition. Sufficient friction reduction can be achieved when the lubricating composition is applied as a lubricant composition. Excellent frictional and wearing properties are attainable when the lubricating composition is used as a grease composition.

LUBRICATING GREASE

A lubricating grease having superior penetration, dropping point, and shear stability properties is provided comprising a base oil, an additive package, a urea- containing thickener, and a lithium soap thickener.

LUBRICATING GREASE

A lubricating grease having superior penetration, dropping point, and shear stability properties is provided comprising a base oil, an additive package, a urea-containing thickener, and a lithium soap thickener.

GREASE COMPOSITION FOR CONSTANT VELOCITY JOINT.

Grease formulation for the lubrication of constant velocity joints in vehicles, has a high capacity for absorption of axial thrust and long life

Composition de graisse pour joints à vitesse constante ou joints homocinétiques. La composition de graisse contient les substances suivantes : (a) une huile de base; (b) un agent épaississant du type diurée représenté par la Formule (1) suivante : R1NH-CO-NH-C 6H4-p-CH2-C6H4-p-NH-Co-NHR3 dans laquelle, R1 et R2 peuvent être identiques ou différents l'un de l'autre, et chacun représente un groupe aryle ou un groupe cycloalkyle ayant 6 ou 7 atomes de carbone; (c) un dialkyl dithiocarbamate de molybdène sulfurisé; (d) un dialkyl dithiophosphate de molybdène sulfurisé; (e) du disulfure de molybdène; (f) un sel de calcium d'un acide alkylaromatique sulfonique; et (g) un additif à pression extrême contenant du soufre et exempt de phosphore. La composition de graisse pour joints à vitesse constante présente une capacité élevée pour réduire la force de poussée induite et a une excellente durée de vie.

Universal joint for automobile transmission shafts contains lead-free grease including diurea thickener and sulfur-containing organotin compound

La présente invention concerne un joint homocinétique pour arbre de transmission pouvant être utilisé avec une bonne durée de vie, sans ajout de plomb organique, ayant un effet élevé de suppression de l'élévation de température de la graisse pendant une rotation à grande vitesse et qui peut éviter la détérioration de la graisse. C'est un joint homocinétique de type à rainures croisées dans lequel le jeu PCD est négatif et dans lequel une précontrainte est appliquée, ou tout autre joint homocinétique pour un arbre à transmission dans lequel une graisse contenant, à titre de composants essentiels, les composants (a), (b) et (g) ou (a) à (g) suivants, est scellée : (a) huile de base; (b) épaississant de type diurée selon la formule suivante : R1NH-CO-NH-C6H4-p-CH2-C6H4-p- NH-CO-NHR2 (dans laquelle R1 et R2 sont des groupes aryle ou cyclohexyle identiques ou différents ayant un nombre de carbones de 6 ou 7).

JОINТ НОМОСINЕТIQUЕ РОUR АRВRЕ DЕ ТRАNSМISSIОN

Lа présеntе invеntiоn соnсеrnе un jоint hоmосinétiquе pоur аrbrе dе trаnsmissiоn pоuvаnt êtrе utilisé аvес unе bоnnе duréе dе viе, sаns аjоut dе plоmb оrgаniquе, ауаnt un еffеt élеvé dе supprеssiоn dе l'élévаtiоn dе tеmpérаturе dе lа grаissе pеndаnt unе rоtаtiоn à grаndе vitеssе еt qui pеut évitеr lа détériоrаtiоn dе lа grаissе. С'еst un jоint hоmосinétiquе dе tуpе à rаinurеs сrоiséеs dаns lеquеl lе jеu РСD еst négаtif еt dаns lеquеl unе préсоntrаintе еst аppliquéе, оu tоut аutrе jоint hоmосinétiquе pоur un аrbrе à trаnsmissiоn dаns lеquеl unе grаissе соntеnаnt, à titrе dе соmpоsаnts еssеntiеls, lеs соmpоsаnts (а), (b) еt (g) оu (а) à (g) suivаnts, еst sсеlléе : (а) huilе dе bаsе; (b) épаississаnt dе tуpе diuréе sеlоn lа fоrmulе suivаntе : R1NН-СО-NН-С6Н4-p-СН2-С6Н4-p- NН-СО-NНR2 (dаns lаquеllе R1 еt R2 sоnt dеs grоupеs аrуlе оu сусlоhехуlе idеntiquеs оu différеnts ауаnt un nоmbrе dе саrbоnеs dе 6 оu 7).

Grease composition for constant velocity joint and a method of decreasing the coefficient of friction using the same

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 ...

UREA GREASE COMPOSITION

A urea grease composition and gears containing such composition, which composition comprises a urea grease and as additives: (A) a molybdenum dialkyldithiocarbamate sulfide represented by formula (I), wherein R?1 and R2¿ each independently represents a group selected from the group consisting of alkyl groups having from 1 to 24 carbon atoms; m is 0 or an integer of from 1 to 3; and n is an integer of from 1 to 4; provided that the sum of m and n is 4, and (B) a triphenyl phosphate represented by formula (II).

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.

ROLLING DEVICE

The rolling device of the present invention is a rolling device that is equipped with an inner ring, an outer ring, and a plurality of rolling elements disposed between the inner ring and the outer ring so as to freely roll, and that is packed with a lubricant composition containing a gelling agent in which a difference between a worked consistency and an unworked consistency is 40-130, and this rolling device has low-torque characteristics, is excellent in terms of recovery property and heat resistance, is free from lubricant leakage, and has a long life.

Schmierfett für ein Wälzlager und damit abgedichtetes Wälzlager

FASERARTIGES POLYHARNSTOFF-FETT

Schmierfettzusammensetzung für ein Hochgeschwindigkeitswälzlager

Grease composition for rolling contact bearing

A grease composition sealed in a rolling contact bearing contains a base oil in the form of a mixture of an alkyldiphenylether oil and a poly- alpha -olefin derived oil. The weight ratio of the former to the latter is between 20 : 80 and 80: 20. 5-40 % by weight of thickening agent which is at least one of an aromatic diurea compound and an aromatic urea- urethane compound is added to the base oil. Further, a passivation oxidizing agent, eg sodium nitrite, and an organic sulfonate are added.

Grease composition for constant velocity joints

Grease composition for constant velocity joints

Grease for constant-velocity joints

GREASE COMPOSITION FOR HOMOKINETI JOINTS

Lubricating grease compositions

Lubricating grease composition

Grease composition for constant velocity joints

GREASE COMPOSITION FOR CONSTANT VELOCITY JOINTS

Grease composition for constant velocity joints comprising a base oil and urea- based thickener, which grease further comprises, (A) from 0.1 to 10 % by weight of an optionally substituted molybdenum- organocyclic compound containing at least 5 ring atoms, wherein each ring atom attached directly to the molybdenum atom is a hetero atom, (B) from 0.1 to 5 % by weight of at least one sulphur-containing additive chosen from the group consisting of sulphur olefins, sulphur- phosphorus extreme-pressure agents, ashless dithiocarbamates, polysulphides, thiadiazoles and zinc dithiocarbamate, and (C) from 0.1 to 5 % by weight of at least one phosphorus-containing additive chosen from the group consisting of molybdenum dithiophosphate, zinc dithiophosphate and triphenylphosphorothionate; a method of lubricating a constant velocity joint comprising packing it with said grease according and a constant velocity joint packed with said grease.

GREASE COMPOSITION WITH IMPROVED RUST PREVENTION AND ABRASION RESISTANCE PROPERTIES

A grease composition comprising a base oil and a thickener, which grease additionally comprises from 0.05 % to 30 % by weight of sodium thiosulphate and at least 0.1 % by weight of one or more additives (A) selected from the group comprising calcium salicylate, magnesium salicylate, calcium phenate and/or calcium sulphonate, based on the total grease composition; use of sai d grease composition to improve rust prevention and abrasion resistance, and a method for preparing said grease composition.

LUBRICATING COMPOSITION

A lubricating composition contains a base oil and an organomolybdenum compound and has a sodium content of not greater than 200 ppm. The limited content of a sodium metal allows the organomolybdenum compound to fully exhibit its peculiar physical performance in that composition. Sufficient friction reduction can be achieved when the lubricating composition is applied as a lubricant composition. Excellent frictional and wearing properties are attainable when the lubricating composition is used as a grease composition.

COMPOSITION OF GREASE FOR SUBJECTED STAGES HAS HIGH CONDITIONS OF TEMPERATURE, SPEED AND LOAD.

Grease composition for constant velocity joints

A grease composition for constant velocity joints, on the basis of the total weight of the composition, comprising: (a) a base oil selected from mineral, oils, ester type synthetic oils, ether type synthetic oils, hydrocarbon type synthetic oils and a mixture thereof; (b) 1 to 25% by weight of a diurea thickener of the formula (1); wherein R1 and R2 may be the same or different and represent aryl groups having 6 or 7 carbon atoms or cyclohexyl groups; (c) 0.1 to 5% by weight of a molybdenum dialkyldithiocarbamate; (d) 0.1 to 5% by weight of molybdenum disulfide; (e) 0.05 to 3% by weight of at least one extreme pressure agent selected from the group consisting of zinc dithiophosphates, and sulfur-nitrogen extreme pressure agents; and (f) 0.1 to 5% by weight of a phosphorus-free sulfur extreme pressure agent in which sulfur content is 35 to 50% by weight.

Grease composition for rolling bearing

A grease composition for rolling bearings is disclosed which contains: (A) 100 parts by weight of a base oil having the kinematic viscosity of 40 to 200 mm2 /s at 40° C., (B) 5 to 65 parts by weight of a urea thickener, and (C) 0.05 to 10 parts by weight of zinc dithiocarbamate, the composition being free of boron nitride. This grease composition is suitable for application to rolling bearings in electrical components and accessory devices for automotive vehicles, such as alternators, electromagnetic clutches for car air conditioners, idle pulleys, electric fan motors, or the like.

Lubricative composition

A lubricative composition which can retain lubricating oil or grease without degrading it, which is heat-resistant and mechanically strong, and can be used continuously for a much longer time than conventional ones without the possibility of shortage of lubricant supply. It includes a first component, which is a modified silicone oil having reactive organic groups, a second component, which is a curing agent having organic groups that react with the reactive organic groups, and a third component, which is a lubricating oil or grease. The third component is retained in a three-dimensionally reticulated structure of silicone formed by polymerizing the first and second components in the third component. The third component has no compatibility with either the first or second components. The lubricating oil or grease retained in the lubricative composition can ooze out through the pores that communicate with each other onto the surface of the lubricative composition, so that the composition ...

FETTZUSAMMENSETZUNG FÜR HOMOKINETISCHE KUPPLUNG

Schmierfettzusammensetzung.

Grease composition for constant velocity joints

A grease composition for constant velocity joints comprising: (a) a base oil; (b) a diurea thickener of the formula (1): R1 NH-CO-NH-C 6 H 4 -p-CH 2 -C 6 H 4 -p-NH-CO-NHR2 wherein R1 and R2 may be the same or different and represent aryl groups having 6 or 7 carbon atoms or cyclohexyl groups; (c) a molybdenum dialkyldithiocarbamate; (d) molybdenum disulfide; (e) at least one extreme pressure agent selected from the group consisting of zinc dithiophosphates, and sulfur-nitrogen extreme pressure agents; and (f) a phosphorus-free sulfur extreme pressure agent. The grease composition has low coefficient of friction, good performance for reducing induced thrust and high durability.

GREASE FOR HOMOKINETIC JOINT

Grease compositions

Grease composition for constant velocity joints

Grease composition for constant velocity joints

LUBRICANTS, PARTICULARLY LUBRICATING GREASE COMPOSITIONS FORCONSTANT VELOCITY UNIVERSAL JOINTS

High performance lubricant compositions, particularly high performance lubricating grease for lubricating and reducing or eliminating shuddering in inboard constant velocity universal joints under high torque and high angle of articulation. In one preferred form, the lubricating grease comprises a base oil, a thickener and in intimate admixture therewith at least one organic molybdenum compound from the group consisting of molybdenum dithiophosphates and molybdenum dithiocarbamates and at least one ashless additive from the group consisting of ashless dithiophosphates and ashless dithiocarbamates.

GREASE TO BE SEALED IN BEARING

A grease to be sealed in bearings which shows good lubricating properties within a wide temperature range from low to high temperatures, whereby it can prevent bearing noise while it is cold, and maintain its good properties including excellent high-temperature durability for a long period of time. The grease contains a base oil made up of a synthetic hydrocarbon oil and an ester synthetic oil having eight or more ester groups arranged in a comb-like fashion on one side of an oil chain molecule made up of eight of more carbon atoms, as expressed by Formula below, the ratio of contents in weight of the synthetic hydrocarbon oil and the ester synthetic oil being 0.65-0.75 : 0.35-0.25, and 5-20 wt% of a urea thickening agent. The grease may further contain 0.1-10 wt% dithiophosphate as an extreme pressure agent. The grease may be used as grease to be sealed in a ball bearing for supporting a pulley engaging belts for transmitting automotive engine torque to prevent noise immediately after ...

Grease composition for constant velocity joints

L'invention concerne une composition de graisse pour joints homocinétiques, constituée d'une combinaison particulière d'une graisse à base d'urée composée d'une huile lubrifiante et d'un épaississant à base d'urée, et des composés suivants: (A) sulfure et dialkyldithiocarbamate de molybdène, (B) disulfure de molybdène, (C) dithiophosphate de zinc et (D) un agent d'onctuosité constitué d'au moins une huile ou graisse végétale, la composition permettant non seulement de réduire la poussée induite, mais aussi d'améliorer la résistance aux écaillages. The invention relates to a grease composition for constant velocity joints, consisting of a particular combination of a urea-based grease composed of a lubricating oil and a urea-based thickener, and of the following compounds: ( A) molybdenum sulfide and dialkyldithiocarbamate, (B) molybdenum disulfide, (C) zinc dithiophosphate and (D) a smoothness agent consisting of at least one vegetable oil or fat, the composition not only reducing the thrust induced, but also to improve the resistance to flaking.

Grease formulation for the lubrication of constant velocity joints in automobiles, has a high capacity for absorption of axial thrust and long grease life

The grease composition has good lubricating powers for the parts of a sliding constant velocity joint which are susceptible to wear and generation of abnormal vibrations. The composition comprises the following materials : (a) A base oil ; (b) A di urea-type thickening agent ; (c) A sulfurized molybdenum dialkyl dithiocarbamate ; (d) Molybdenum disulfide ; (e) An extreme pressure agent containing sulfur-phosphorus, i.e. compounds of zinc dithiophosphate and thiophosphates ; (f) A fatty acid amide. The composition is suitable for lubrication of constant velocity joints of sliding type. The composition comprises 1 - 25% of the di urea thickening agent ; 0.1 - 5% of the dialkylthiocarbamate ; 0.1 - 5% of molybdenum disulfide ; 0.1 - 5% of extreme pressure agent and 0.1 - 5% of the fatty acid amide. The product (b) is obtained by reaction of a diisocyanate with a monoamine, the diisocyanate being the phenylene-, diphenyl-, phenyl-, diphenylmethane-, octadecane-, decane- or hexane-diisocyanate ; the monoamine is octylamine, dodecylamine, hexadecylamine, octadecylamine, oleylamine, aniline, p-toluidine or cyclohexylamine. The substance (c) is a product of formula(I) : (R<1>R<2>N-CS-S)2-Mo2OmSn R<1>, R<2> (independently) = 1 - 24C alkyl ; m + n = 4, on condition that m = 0 - 3 and n = 4 - 1. The substance (e) is a product of formula(II) : (R<3>O)(R<4>O)P(=S)(OR<5>) R<3> = 1 - 24C alkyl, cycloalkyl, alkylcycloalkyl, aryl, alkylaryl or arylalkyl ; R<4>, R<5> = H or 1 - 24C alkyl, cycloalkyl, alkylcycloalkyl, aryl, alkylaryl or arylalkyl. Preferably, R<3>, R<4> and R<5> are 12 or 13C alkyl. -or (e) is a product of formula(III) : ((R<6>O)2-PS-S)2Zn Z <6> = 1 - 24C alkyl or 6 - 30C aryl. Preferably R<6> = 3 - 8C primary or secondary alkyl. The substance (f) is palmitamide or stearamide.

GREASE COMPOSITION FOR CONSTANT VELOCITY JOINT

본 발명은 (a) 기재 오일; (b) 하기 식 (1)으로 나타내어지는 디우레아 타입의 증점제: The present invention (a) a base oil; (b) a thickener of the diurea type represented by the following formula (1): (1) R 1 NH-CO-NH-C 6 H 4 -p-CH 2 -C 6 H 4 -p-NH-CO-NHR 2 (1) R 1 NH-CO-NH-C 6 H 4 -p-CH 2 -C 6 H 4 -p-NH-CO-NHR 2 (상기 식 (1)에서, R 1 및 R 2 는 서로 동일하거나 상이할 수 있고 각각 탄소원자수 6 또는 7인 아릴기 또는 사이클로알킬기임); (c) 몰리브덴 황화 디알킬 디티오카바메이트; (d) 몰리브덴 황화 디알킬 디티오포스페이트; (e) 이황화몰리브덴; (f) 알킬 방향족 술폰산의 칼슘염; 및 (g) 인이 없는 황 함유 초고압 첨가제를 포함하는 등속 조인트용 그리스 조성물을 제공한다. 본 발명의 등속 조인트용 그리스 조성물은 높은 유도 추력의 감소능력과 우수한 내구성을 가진다. (In formula (1), R 1 and R 2 may be the same or different from each other and each is an aryl group or cycloalkyl group having 6 or 7 carbon atoms); (c) molybdenum sulfide dialkyl dithiocarbamate; (d) molybdenum sulfide dialkyl dithiophosphates; (e) molybdenum disulfide; (f) calcium salts of alkyl aromatic sulfonic acids; And (g) a phosphorus-free sulfur-containing ultrahigh pressure additive. The grease composition for constant velocity joints of the present invention has a high ability to reduce induced thrust and excellent durability. 그리스 조성물, 등속 조인트, 디우레아, 몰리브덴 황화 디알킬 디티오카바메이트, 이황화몰리브덴, 디티오포스페이트, 유도 추력 Grease composition, constant velocity joint, diurea, molybdenum sulfide dialkyl dithiocarbamate, molybdenum disulfide, dithiophosphate, induced thrust

LUBRICATING GREASE COMPOSITION

PURPOSE: A lubricating grease composition comprises a basic oil mixture of hydrocarbon oil and perfluoro-polyalkylether oil, an additive, and a thickening agent of a small quantity based on a dicarbamide composition. The composition has good noise proofing property at an operating temperature of 180 to 250°C. CONSTITUTION: The lubricating grease composition comprises: (a) a hydrocarbon-based oil; (b) a perfluoro-polyalkylether oil represented by the formula of A'-(O-CF2)v-(O-C2F4)w-(O-C3F6)x-(O-C4F8)y-(O-CF2CF(CF3))z-O-A'', wherein A' is -CF3, -C2F5, -C3F7, -CF2T (T is H or Cl); A'' is A' or -CF3, -C2F5, -C3F7, -CF2T (T is H or Cl); and v, w, x, y and z are an integer greater than zero); (c) a dicarbamide as a thickening agent; (d) a normal additive; and (e) an organic or inorganic solid lubricating oil. COPYRIGHT 2000 KIPO ...

COUPLED QUATERNARY AMMONIUM SALTS

Method for reducing one or more of deposits and friction of a lubricating oil

The present invention is directed to a method for improving one or more of the control of deposit formation and friction in an engine lubricated using a lubricating oil comprising a base oil and additives by employing as the additive the necessary combination of a borated hydroxyl saturated hydrocarbyl ester amide-amine mixture, zinc dialkyl dithiophosphate, and metal salicylate detergent, the deposit formation and friction being improved as compared to a lubricating oil containing the borated hydroxyl saturated hydrocarbyl ester amide-amine mixture, zinc dialkyl dithiophosphate and a detergent other than metal salicylate, such as metal phosphate and/or metal sulfonate.

GREASE COMPOSITION FOR CONSTANT VELOCITY JOINTS

Grease composition for constant velocity joints comprising a base oil and urea-based thickener, which grease further comprises, (A) from 0.1 to 10 % by weight of an optionally substituted molybdenum-organocyclic compound containing at least 5 ring atoms, wherein each ring atom attached directly to the molybdenum atom is a hetero atom, (B) from 0.1 to 5 % by weight of at least one sulphur-containing additive chosen from the group consisting of sulphur olefins, sulphur-phosphorus extreme-pressure agents, ashless dithiocarbamates, polysulphides, thiadiazoles and zinc dithiocarbamate, and (C) from 0.1 to 5 % by weight of at least one phosphorus-containing additive chosen from the group consisting of molybdenum dithiophosphate, zinc dithiophosphate and triphenylphosphorothionate; a method of lubricating a constant velocity joint comprising packing it with said grease according and a constant velocity joint packed with said grease.

A process for producing molybdenum oxysulfide dithiocarbamate

A process for producing molybdenum oxysulfide dithiocarbamate (MoDTC) by reacting [A] an aqueous solution or suspension prepared by reacting (a) a compound having hexavalent molybdenum, with (b) an alkali hydrogensulfide or an alkali sulfide, [B] a carbon disulfide, [C] a secondary amine and [D] a mineral acid, wherein [E] a reducing agent is added and reacted at any stage, and a lubricating oil composition containing the compound obtained according to said process. MoDTC can be efficiently produced in high yields by using a hexavalent molybdenum compound as a starting material, and the produced MoDTC has low corrosive action, excellent wear characteristics and excellent lubricating properties.

Schmiermittel.

Schmierfettzusammensetzung für homokinetische Gelenke

Mit Schmierstoff versehenes Wälzlager

ROLLING BEARING

GREASE COMPOSITIONS

HIGH-SPEED ANTIFRICTION BEARING

Urea grease composition

LUBRICATING GREASE COMPOSITION

A lubricating grease composition includes a grease containing a base oil and a thickening agent consisting of a mixture of tricalcium phosphate represented by the formula Ca3(P04)2 and a urea compound and, incorporated as additives in the grease, (A) a sulfurized molybdenum dialkyldithiocarbamate represented by the formula wherein R1 and R2 each independently represents a group selected from the group consisting of alkyl groups having from 1 to 24 carbon atoms; m is 0 or an integer of from 1 to 3; and n is an integer of from 1 to 4; provided that m+n=4 and (B) triphenyl phosphorothionate represented by the formula

COMPOSITION OF GREASE FOR JOINTS HAS CONSTANT SPEED

Grease composition for bearings subjected to high temperature, speed and load conditions

L'invention concerne une composition de graisse pour conditions élevées de température, de vitesse et de charge, comprenant: (i) une huile de base lubrifiante, comprenant comme constituant essentiel un lubrifiant du type alkyldiphényléther et ayant une viscosité cinématique de 0,000009 à 0,000016 m2 /s à 40 degréC, et (ii) 24-30% en poids, par rapport à la composition de graisse, d'une diurée servant d'épaississant, la diurée étant représentée par la formule suivante: (CF DESSIN DANS BOPI) dans laquelle R2 est un groupe hydrocarboné aromatique ayant 6-15 atomes de carbone, R1 et R3 représentent des groupes hydrocarbonés aromatiques ayant 6-12 atomes de carbone ou des groupes alkyle linéaire ayant 8-20 atomes de carbone, la proportion des groupes hydrocarbonés aromatiques dans R1 et R3 étant de 70-95% en moles; et l'indice NLGI de la composition allant du N degré 1 au N degré 3.

Grease composition for bearings subjected to conditions of elevated temperature, speed and discharge

L'invention concerne une composition de graisse pour conditions élevées de température, de vitesse et de charge, comprenant: (i) une huile de base lubrifiante, comprenant comme constituant essentiel un lubrifiant du type alkyldiphényléther et ayant une viscosité cinématique de 0,000009 à 0,000016 m2 /s à 40degré C, et (ii) 22-30% en poids, par rapport à la composition de graisse, d'une diurée servant d'épaississant, la diurée étant représentée par la formule suivante: (CF DESSIN DANS BOPI) dans laquelle R2 est un groupe hydrocarboné aromatique ayant 6-15 atomes de carbone, R1 et R3 représentent des groupes hydrocarbonés aromatiques ayant 6-12 atomes de carbone ou des groupes alkyle linéaire ayant 8-20 atomes de carbone, la proportion des groupes hydrocarbonés aromatiques dans R1 et R3 étant de 70-95% en moles; et l'indice NLGI de la composition allant du Ndegré 1 au Ndegré 3. The invention relates to a grease composition for high temperature, speed and load conditions, comprising: (i) a lubricating base oil, comprising as an essential component an alkyldiphenyl ether lubricant and having a kinematic viscosity of 0.000009 to 0.000016 m2 / s at 40 ° C, and (ii) 22-30% by weight, based on the fat composition, of a diurea serving as a thickener, the diurea being represented by the following formula: (CF DRAWING IN BOPI) in which R2 is an aromatic hydrocarbon group having 6-15 carbon atoms, R1 and R3 represent aromatic hydrocarbon groups having 6-12 carbon atoms or linear alkyl groups having 8-20 carbon atoms, the proportion of aromatic hydrocarbon groups in R1 and R3 being 70-95 mol%; and the NLGI index of the composition ranging from Ndegre 1 to Ndegré 3.

LUBRICATING GREASE COMPOSITIONS

The invention relates to lubricating grease compositions which consist of (a) an oil based on hydrocarbons; (b) a perfluorinated polyalkyl ether oil of the general formula A' - (O-CF2)v-(O-C2F4)w-(O-C3F6)x-(O-C4F8)y-(O-CF2CF(CF3))z-O-A'', in which A' is equivalent to -CF3, -C2F5, -C3F7, -CF2T, T being H or Cl, and v, w, x, y and z are integers ≥ 0; (c) a diurea as the thickening agent; (d) conventional additives; and (e) organic and inorganic solid lubricating grease compositions. The invention also relates to a process for preparing said lubricating grease compositions.

Grease composition and grease composition-sealed bearing

Disclosed is a grease composition comprising a base oil, a thickener, and an additive; the base oil having a kinetic viscosity of 20 to 150 mm2/s at 40°C, and the additive containing as an essential component 0.05 to 10 parts by weight of a metal salt of a dibasic acid based on 100 parts by weight of the base oil and the thickener, the metal salt of the dibasic acid being represented by the following formula: where M1 and M2 represent the same or different alkali metal, and R1 represents aliphatic hydrocarbon group or an aromatic hydrocarbon group.

Grease composition for high-speed rolling bearing

Hochtemperaturfett auf Harnstoffbasis

Einwegkupplung

"Grease composition for bearings"

A grease composition for high-temperature, high-speed and high-load bearings comprises (i) a lubricating base oil composed of an alkyldiphenyl ether lubricant and having a kinematic viscosity of 90-160 cSt at 40 DEG C, and (ii) 22-30 wt.%, based on the grease composition, of a diurea compound as a thickener. The diurea compound is represented by the following formula: wherein R2 means an aromatic hydrocarbon group having 6-15 carbon atoms, R1 and R3 denote an aromatic hydrocarbon group having 6-12 carbon atoms or a linear alkyl group having 8-20 carbon atoms, and the proportion of aromatic hydrocarbon groups in R1 and R3 is 70-95 mole %. The NLGI thickness grade of said composition is in a range of from No. 1 to No. 3.

Rolling bearing

A grease composition and a grease-sealed rolling bearing incorporating the same

GREASE COMPOSITION FOR CONSTANT VELOCITY JOINT

Grease composition with improved rust prevention and abrasion resistance properties

LUBRICATING GREASE COMPOSITIONS

The invention relates to lubricating grease compositions which consist of (a) an oil based on hydrocarbons; (b) a perfluorinated polyalkyl ether oil of the general formula A' - (O-CF2)v-(O-C2F4)w-(O-C3F6)x-(O-C4F8)y-(O-CF2CF(CF3))z-O-A'', in which A' is equivalent to -CF3, -C2F5, -C3F7, -CF2T, T being H or Cl, and v, w, x, y and z are integers 0; (c) a diurea as the thickening agent; (d) conventional additives; and (e) organic and inorganic solid lubricating grease compositions. The invention also relates to a process for preparing said lubricating grease compositions.

GREASE COMPOSITION FOR CONSTANT VELOCITY JOINTS

Grease composition for constant velocity joints, comprising a base oil and a urea-based thickener, which grease additionally contains, (A) molybdenum sulphide dialkyldithiocarbamate and (B) 5,5 -dithiobis(1,3,4-thiadiazole-2-thiol); a method of lubricating a constant velocity joint comprising packing it with said grease; and a constant velocity joint packed with said grease.

A PROCESS FOR PRODUCING MOLYBDENUM OXYSULFIDE DITHIOCARBAMATE

A process for producing molybdenum oxysulfide dithiocarbamate (MoDTC) by reacting [A] an aqueous solution or suspension prepared by reacting (a) a compound having hexavalent molybdenum, with (b) an alkali hydrogensulfide or an alkali sulfide, [B] a carbon disulfide, [C] a secondary amine and [D] a mineral acid, wherein [E] a reducing agent is added and reacted at any stage, and a lubricating oil composition containing the compound obtained according to said process. MoDTC can be efficiently produced in high yields by using a hexavalent molybdenum compound as a starting material, and the produced MoDTC has low corrosive action, excellent wear characteristics and excellent lubricating properties.

LUBRICATE FOR HOMOKINETIC JOINT

Une graisse lubrifiante, en particulier pour une utilisation dans des joints homocinétiques, comprend une huile de base comportant des huiles minérales ou synthétiques ou des mélanges de celles-ci, un épaississant, du dithiophosphate de molybdène et de l'oxyde (I) de cuivre. De plus, la graisse peut comprendre du dithiocarbamate de molybdène, du dithiophosphate de zinc, un agent d'extrême pression contenant du soufre et sans métal, une amine organique et si cela est souhaité, au moins certains des additifs normaux tels que des inhibiteurs de corrosion, des additifs anti-oxydants, des agents d'adhésivité et des agents d'amélioration de l'indice de viscosité. La graisse est économique en matière première, et présente des caractéristiques de faible usure et de faible friction.

HOMOKINETIC JOINT FOR DRIVESHAFT

GREASE COMPOSITION FOR CONSTANT VELOCITY JOINTS

Grease composition for constant velocity joints, comprising a base oil and a urea-based thickener, which grease additionally contains, (A) molybdenum sulphide dialkyldithiocarbamate and (B) 5,5 -dithiobis(1,3,4-thiadiazole-2-thiol); a method of lubricating a constant velocity joint comprising packing it with said grease; and a constant velocity joint packed with said grease.

GREASE COMPOSITION FOR A CONSTANT VELOCITY JOINT

A grease composition for a constant velocity joint, characterised in that it contains from 0.05 to 30 percent by weight of sodium thiosulphate with respect to a base oil and urea-based thickener.

Pulley and ball bearing for pulleys

A pulley which is brought into contact with a timing belt of an engine of automobile and a belt for driving auxiliary machinery, and a ball-bearing used for the same, wherein the radial internal clearance in the running state of a ball bearing is set to substantially 5 to 30 μm, and grease to be sealed in said ball bearing is such that the base oil thereof is made a mixture of α-olefin oligomer and ester, the thickening agent thereof is made a mixture of an alicyclic urea compound and an aliphatic urea compound, the worked penetration thereof is roughly 240, and the base oil viscosity thereof is made 40 to 43 cSt at a temperature of 40° C., whereby it is possible to suppress self-excited vibrations of a rolling element and to securely prevent the hoot sound from occurring. Furthermore, since grease used herein has superior characteristics in the high temperature durability, there is no worry about a lowering of the high temperature durability as in conventional pulleys in which low temperature ...

High speed rolling bearing

A high speed rolling bearing of a long life, having a low rotation torque and a small leakage amount of a grease, is provided. The high speed rolling bearing comprises retainers disposed so as to surround respective rolling elements between an outer member and an inner member thereof, and the respective rolling elements roll against a first contact face which is a contact face thereof with the outer member as well as a second contact face which is a contact face thereof with the inner member. The retainers are made of a polyamide, and the retainers made of the polyamide retains a grease composition, composed of a thickener and a base oil composed of a synthetic hydrocarbon oil having kinematic viscosity at 40° C in a range of 50 to 70 mm2/s, and containing 3 to 6 mass % of hydrocarbon molecules containing 28 to 32 carbon atoms.

Method of preparing greases

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 for constant velocity joints

A grease composition for constant velocity joints consists essentially of: (a) a base oil; (b) an urea thickener; (c) molybdenum disulfide; (d) a calcium salt or an overbasic calcium salt selected from the group consisting of calcium salts or overbasic calcium salts of oxidized waxes, petroleum sulfonates, alkyl aryl sulfonates, salicylate, and phenates; (e) a metal-free sulfur-phosphorus extreme pressure agent; and (f) molybdenum dithiocarbamate. The grease composition exhibits excellent wear-resistance and pitting-inhibitory effect.

LUBRICATING GREASE COMPOSITION

PURPOSE: To obtain the subject composition produced by adding a plurality of specific additives to a grease containing a thickening agent, having high and balanced load resistance, abrasion resistance and heat-resistance and useful for a lubricating part of a bearing, etc. CONSTITUTION: This composition is produced by incorporating (A) a grease containing 2-35wt.% (based on the total composition) of a thickener consisting of a mixture of (i) tricalcium phosphate of the formula Ca3(PO4)2 and (ii) a urea compound in a base oil with additives consisting of (B) 0.5-10wt.% of a dialkyldithiocarbamic acid molybdenum sulfide of formula I (R1 and R2 are each a 2-4C alkyl; m+n:4; (m) 18 0-3; (n) is 4-1) (e.g. diethyldithiocarbamic acid molybdenum sulfide) and (C) 0.1-10wt.% of triphenyl phosphorothionate of formula II. The ratios of the component (i) and the component (ii) (e.g. diurea) are preferably 5-95wt.% and 95-5wt.%, respectively. COPYRIGHT: (C)1996,JPO ...

SCHMIERMITTELZUSAMMENSETZUNG MIT VERBESSERTEM ROSTSCHUTZ UND ABRIEBFESTEN EIGENSCHAFTEN

Verwendung einer Fettzusammensetzung zum Füllen von Automobilkabelklemmen

Schmierstoffzusammensetzung für Wälzlager

Rolling bearing

Grease compositions

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 ...

Coupled quaternary ammonium salts

The present technology is related to coupled quaternary ammonium salts, and the use of such coupled quaternary ammonium salts in fuel and oil compositions, or demulsification and/or engine performance of the compositions.

用于等速万向节的润滑脂组合物

一种用于等速万向节的润滑脂组合物，主要由如下组分组成：(a)基础油；(b)脲增稠剂；(c)二硫化钼；(d)选自如下的钙盐或者高碱性钙盐：氧化蜡的钙盐或高碱性钙盐、石油磺酸的钙盐或高碱性钙盐、烷基芳基磺酸的钙盐或高碱性钙盐、水扬酸的钙盐或高碱性钙盐或者酚的钙盐或高碱性钙盐；(e)无金属硫—磷极压剂；和(f)二硫化氨基甲酸钼。该润滑脂组合物显示出极好的耐磨性能和耐点蚀作用。

Lubricating grease composition

Lubricating grease compositions

Grease composition for constant velocity joints

본 발명은 등속조인트용 그리스 조성물에 관한 것으로서, 더욱 상세하게는 (a) 기본유; (b) 우레아 증감제; (c) 몰비브덴 디설파이드; (d) 산화왁스, 석유술폰산, 알킬아릴술폰산, 살리실산 및 페녹시화물의 칼슘염 또는 과염기의 칼슘염중에서 선택된 칼슘염 또는 과염기의 칼슘염; (e) 금속을 함유하지 않은 황-인계 극압제; 그리고 (f) 몰리브덴 디티오카바메이드가 필수적으로 함유되어 이루어져 있어, 우수한 내마모도와 박리억제효과를 나타내는 등속조인트용 그리스 조성물에 관한 것이다.

A COMPOSITION OF FAT THAT INCLUDES A BASE OIL AND A THICKENER, USE OF THE SAME AND A METHOD TO PREPARE IT

Una composicion de grasa que comprende un aceite base y un espesante, grasa que comprende adicionalmente 0,05% a 30% en peso de tiosulfato de sodio y al menos 0,1% en peso de uno o más aditivos (A) seleccionados del grupo formado por salicilato de calcio, salicilato de magnesio, fenato de calcio y/o sulfonato de calcio, en base a la composicion de grasa total; uso de dicha composicion de grasa para mejorar la prevencion de la oxidacion y la resistencia a la abrasion, y un método para preparar dicha composicion de grasa. A fat composition comprising a base oil and a thickener, a fat that additionally comprises 0.05% to 30% by weight of sodium thiosulfate and at least 0.1% by weight of one or more additives (A) selected from the group formed by calcium salicylate, magnesium salicylate, calcium phenate and / or calcium sulphonate, based on the total fat composition; use of said fat composition to improve oxidation prevention and abrasion resistance, and a method of preparing said fat composition.

Fibrous polyurea grease

(57)【要約】 基油と、トルエンジイソシアネート、脂肪族アミン及びアルキルフェニルアミンの反応生成物からなる繊維状ジウレア増ちょう剤を含有する繊維状グリース。

Grease composition for constant velocity joints

Grease composition for high-speed rolling bearings

Lubricating Grease Composition

본 발명은 기재유, 및 Ca 3 (PO 4 ) 2 의 인산삼칼슘과 우레아 화합물의 혼합물로 이루어진 농조화제 및 그리이스에 첨가제로서 혼입된 일반식(A)의 황 처리된 몰리브덴 디알킬 디티오카바메이트(A) 및 구조식(B)의 트리페닐 포스포로티오네이트(B)를 포함하는 그리이스를 포함하는 윤활 그리이스 조성물에 관한 것이다. 상기 식에서, R 1 및 R 2 는 각각 독립적으로 탄소수 1 내지 24의 알킬 그룹으로 이루어진 그룹 중에서 선택된 그룹이고, m은 0 또는 1 내지 3의 정수이며, n은 1 내지 4의 정수이고, 단, m+n의 합은 4이다.

Urea grease composition

Constant velocity universal joint for propeller shaft

Break grease composition

Grease composition for constant velocity joints

Grease composition for constant velocity joints

A grease composition for constant velocity joints which consists essentially of: (a) a base oil; (b) an urea thickener; (c) molybdenum disulfide; and (d) a metal salt or an overbasic metal salt selected from the group consisting of metal salts or overbasic metal salts of oxidized waxes, petroleum sulfonates, alkyl aryl sulfonates, salicylate, and phenates. In addition to (a) to (d), it may further contain, (e) an extreme pressure agent selected from the group consisting of a metal-free sulfur-phosphorus extreme pressure agent and molybdenum dithiophosphate, or (f) molybdenum dithiocarbamate. The grease composition exhibits excellent wear-resistance and pitting-inhibitory effect.

Rolling bearing with grease for alternator

Grease composition for constant velocity joint

본 발명은 (a) 기본오일; (b) 우레아계 증감제; (c) 몰리브데늄 디설파이드; 그리고 (d) 산화왁스, 석유설폰산, 알칼아릴설폰산, 살리실산 및 페네이트의 금속염 또는 과염기금속염 중에서 선택된 금속염 또는 과염기금속염을 필수성분으로 함유하는 등속조인트용 그리스 조성물에 관한 것이다. 또한 본 발명은 상기 (a)∼(d)를 필수성분으로 하고, 여기에 (e) 금속을 함유하지 않은 황-인계 극압제 및 몰리브데늄 디티오포스페이트 중에서 선택된 극압제, 또는 (f) 몰리브데늄 티디오카바메이트가 함유되어 있는 등속조인트용 그리스 조성물을 포함한다. 본 발명의 등속조인트용 그리스 조정물은 현저한 내마모 효과 및 현저한 피팅 억제효과를 갖고 있다.

Polyurea-thickened grease composition

A grease composition comprising a major amount of an oil of lubricating viscosity; a thickener selected from the group consisting of monoureas, diureas, triureas and polyureas, or mixtures thereof; and an oil soluble neutral or overbased zinc salt of a carboxylic acid selected from the group consisting of zinc salts of fatty acids, the zinc salts of hydrocarbyl-substituted salicylic acids, and zinc glyoxylates is disclosed.

GREASE COMPOSITION FOR CONSTANT SPEED JOINTS

L'invention a pour objet une composition de graisse pour joints à vitesse constante, comprenant : (a) une huile de base ; (b) une épaississant à base de diurée, de formule (1) : (CF DESSIN DANS BOPI) dans laquelle R1 et R2 peuvent être identiques ou différents et représentent des groupes aryles ayant 6 ou 7 atomes de carbone ou des groupes cyclohexyle ; (c) un dialkyldithiocarbamate de molybdène ; (d) du disulfure de molybdène ; (e) au moins un agent pour pressions extrêmes choisi dans le groupe constitué par les dithiophosphates de zinc et des agents pour pressions extrêmes à base de soufre-azote ; et (f) un agent pour pressions extrêmes à base de soufre, exempt de phosphore. La composition de graisse présente un faible coefficient de friction, elle diminue bien la poussée induite et présente une bonne durabilité. The invention relates to a grease composition for constant speed seals, comprising: (a) a base oil; (b) a diurea-based thickener of formula (1): (CF DRAWING IN BOPI) in which R1 and R2 may be the same or different and represent aryl groups having 6 or 7 carbon atoms or cyclohexyl groups; (c) a molybdenum dialkyldithiocarbamate; (d) molybdenum disulfide; (e) at least one extreme pressure agent selected from the group consisting of zinc dithiophosphates and sulfur-nitrogen based extreme pressure agents; and (f) a sulfur-based, phosphorus-free extreme pressure agent. The grease composition has a low coefficient of friction, it reduces the induced thrust well and has good durability.

Urea grease composition

A urea grease composition and gears containing such composition, which composition comprises a urea grease and as additives: (A) a molybdenum dialkyldithiocarbamate sulfide represented by formula (I), wherein R1 and R2 each independently represents a group selected from the group consisting of alkyl groups having from 1 to 24 carbon atoms; m is 0 or an integer of from 1 to 3; and n is an integer of from 1 to 4; provided that the sum of m and n is 4, and (B) a triphenyl phosphate represented by formula (II).

GREASE FOR HOMOCINETIC JOINT.

GREASE FOR HOMOCINETIC JOINT.

Graisses améliorées pour utilisation dans des joints homocinétiques, qui comprennent une huile de base, un agent épaississant et un composé organique du molybdène, et également graisses qui comprennent une huile de base, un agent épaississant, un composé organique du molybdène et un composé organique du zinc. Ces graisses ont des coefficients de frottement plus faibles que ceux des graisses habituelles pour cet usage. Sur le joint homocinétique lubrifié avec la graisse conforme à l'invention, la force axiale engendrée est réduite et les vibrations dues au moteur sont absorbées. La vibration du véhicule est empêchée, l'utilisation d'un additif organique métallique coûteux de type extrême-pression n'est pas nécessaire. (CF DESSIN DANS BOPI) Improved greases for use in constant velocity joints, which include a base oil, a thickening agent, and an organic molybdenum compound, and also greases which include a base oil, a thickening agent, an organic molybdenum compound and an organic molybdenum compound. zinc. These greases have lower friction coefficients than those of greases usual for this use. On the constant-velocity joint lubricated with the grease according to the invention, the axial force generated is reduced and the vibrations due to the motor are absorbed. The vibration of the vehicle is prevented, the use of an expensive metal organic additive of extreme pressure type is not necessary. (CF DRAWING IN BOPI)

Grease composition with improved rust prevention and abrasion resistance properties

一种含有基础油和增稠剂的润滑脂组合物，以整个润滑脂组合物为基准，该润滑脂中附加含有0.05wt％－30wt％的硫代硫酸钠和至少0.1wt％的一种或多种选自水杨酸钙、水杨酸镁、苯酚钙和/或磺酸钙的添加剂(A)；使用所述润滑脂组合物以改进防锈和抗磨损性，以及制备所述润滑脂组合物的方法。

GREASE COMPOSITION FOR HOMOCINETIC SEAL.

Une composition de graisse pour joint homocinétique, notamment pour joints de type Zeppa, prend une huile de base et contient (A) un composé de diurée particulier en tant qu'épaississant, (B) un dialkyldithiocarbamate de sulfure de molybdène, (C) un additif extrême pression à base de dithiophosphate de zinc, (D) un additif extrême pression de la série soufre-phosphore ne contenant aucun élément métallique et ayant une teneur en soufre de 10-30 % en poids et une teneur en phosphore de 0,5-5 % en poids et (E) un dialkyldithiocarbamate de plomb en tant que composant essentiel. A homokinetic joint grease composition, especially for Zeppa type joints, takes a base oil and contains (A) a particular diurea compound as a thickener, (B) a molybdenum sulfide dialkyldithiocarbamate, (C) a extreme pressure additive based on zinc dithiophosphate, (D) an extreme pressure additive of the sulfur-phosphorus series containing no metallic elements and having a sulfur content of 10-30% by weight and a phosphorus content of 0.5 -5% by weight and (E) a lead dialkyldithiocarbamate as an essential component.

Grease composition with improved rust prevention and abrasion resistance

基油及び増粘剤を含むグリース組成物において、更にチオ硫酸ナトリウムを全グリース組成物に対し０．０５〜３０重量％と、サリチル酸カルシウム、サリチル酸マグネシウム、カルシウムフェネート及び／又はスルホン酸カルシウムよりなる群から選ばれた１種以上の添加剤（Ａ）を全グリース組成物に対し少なくとも０．１重量％とを含有するグリース組成物、防錆性及び耐摩耗性を改良するための前記グリース組成物の使用、並びに該グリース組成物の製造方法。

Fat for homokinetic joints

Pulley and ball bearing for pulleys

The present invention relates to a pulley which is brought into contact with a timing belt of an engine of automobile and a belt for driving auxiliary machinery, and a ball bearing used for the same, wherein the radial internal clearance in the running state of a ball bearing is set to substantially 5 to 30µm, and grease to be sealed in said ball bearing is such that the base oil thereof is made a mixture of .alpha. -olefin oligomer and ester, the thickening agent thereof is made a mixture of an alicyclic urea compound and an aliphatic urea compound. the worked penetration thereof is roughly 240, and the base oil viscosity thereof is made 40 to 43cSt at a temperature of 40 ° C, whereby it is possible to suppress self-excited vibrations of a rolling element and to securely prevent the hoot sound from occurring. Furthermore, since grease used herein has superior characteristics in the high temperature durability, there is no worry about a lowering of the high temperature durability as in conventional pulleys in which low temperature grease of good low temperature characteristics is employed.

Grease for Constant Velocity Joint

본 발명은 등속조인트용 그리이스에 관한 것으로서, 더욱 상세하게는 기존 그리이스 조성에 유기몰리브덴, 안티몬디알킬디티오카바메이트(이하, Sb-DTC)와 아연디티오포스페이트 및 유기황화합물을 첨가하여 이루어짐으로써 극압성을 향상되고 저마찰로인해 내구성이 향상됨은 물론 진동방지 효과까지 가진 등속조인트용 그리이스에 관한 것이다.

Grease composition

Grease composition, mechanism component, and production method for grease composition

The present invention addresses the problem of providing a grease composition that uses hydrophilic nanofibers but still has excellent water resistance and does not readily experience oil separation. A grease composition that contains a base oil, hydrophilic nanofibers that have a thickness (d) of 1–500 nm, and organic bentonite.

Grease suitable for high temperature use

Lubricating grease compositions

The invention relates to lubricating grease compositions which consist of (a) an oil based on hydrocarbons; (b) a perfluorinated polyalkyl ether oil of the general formula A' - (O-CF2)v-(O-C2F4)w-(O-C3F6)x-(O-C4F8)y-(O-CF2CF(CF3))z-O-A'', in which A' is equivalent to -CF3, -C2F5, -C3F7, -CF2T, T being H or Cl, and v, w, x, y and z are integers ≥ 0; (c) a diurea as the thickening agent; (d) conventional additives; and (e) organic and inorganic solid lubricating grease compositions. The invention also relates to a process for preparing said lubricating grease compositions.

High temperature lubricating grease containing urea compounds

Disclosed is a lubricating grease suitable for high temperature use, consisting essentially of 60 to 90% by weight of a base oil mixture comprising at least one mineral oil and at least one synthetic oil, 5 to 17% by weight of at least one urea compound as a thickener, wherein the at least one urea compound is a reaction product of at least one fatty amine and at least one isocyanate or at least one diisocyanate, 2 to 20% by weight of calcium complex grease, 1 to 4% by weight of molybdenum disulphide, 0.2 to 1% by weight of graphite powder, 0.2 to 1% by weight of polytetrafluoroethylene powder, 0.2 to 1% by weight of solid particles of at least one organo-molybdenum compound selected from a molybdenum dithiocarbamate and a molybdenum dithiophosphate, up to 2% by weight of a metal deactivator and up to 2% by weight of a corrosion inhibitor.

Grease composition

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Grease composition for bearings subjected to high conditions of temperature, speed and load.

Sulfurized molybdenum carbamate and phosphorothionate-containing urea grease composition

A urea grease composition is disclosed, which comprises a urea grease and, incorporated therein as additives, a sulfurized molybdenum dialkyldithiocarbamate represented by formula (A): (wherein R1 and R2 each independently represent an alkyl group having from 1 to 24 carbon atoms, m+n=4, m is 0 to 3, and n is 4 to 1) and triphenyl phosphorothionate represented by formula (B):

Grease containing diamine corrosion inhibitors

A FAT COMPOSITION FOR CONSTANT SPEED GASKETS, A METHOD FOR LUBRICATING A CONSTANT SPEED GASKET AND A CONSTANT SPEED GASKET PACKAGED WITH SUCH FAT

Una composicion de grasa para juntas de velocidad constante que comprenden un aceite base y un espesante de urea, grasa que comprende además: (A) de 0,1 a10% en peso de un compuesto organocíclico de molibdeno opcionalmente constituido que contieneal menos 5 átomos anulares, en el cual cada átomo anular ligadodirectamente al átomo de molibdeno es un heteroátomo; (B) de 0,1 a 5% en peso de al menos un aditivo que contiene azufre, seleccionado del grupo formado porolefinas sulfonadas, agentesde p resion extrema que contienen azufre y fosforo, ditiocarbamato sin cenizas, polisulfuros, tiadiazoles y ditiocarbamato de cinc;y (C) de 0,1 a 5% en peso de al menos un aditivo que contiene fosforo, seleccionado del grupo formado por ditiofosfatode molibdeno, ditiofosfato de cinc, y trifenilfosforotianato; un método para lubricar una junta de velocidad constante que comprende empaquetar la misma con dicha grasa; y una junta de velocidadconstante empaquetada con dicha grasa. A grease composition for constant velocity joints comprising a base oil and a urea thickener, a fat further comprising: (A) 0.1 to 10% by weight of an optionally constituted molybdenum organocyclic compound containing at least 5 ring atoms , in which each ring atom directly linked to the molybdenum atom is a heteroatom; (B) 0.1 to 5% by weight of at least one sulfur-containing additive, selected from the group consisting of sulfonated olefins, extreme pressure agents containing sulfur and phosphorus, ash-free dithiocarbamate, polysulfides, thiadiazoles and zinc dithiocarbamate; and (C) from 0.1 to 5% by weight of at least one phosphorus-containing additive, selected from the group consisting of molybdenum dithiophosphate, zinc dithiophosphate, and triphenyl phosphorothianate; a method for lubricating a constant speed joint comprising packaging it with said grease; and a constant speed seal packaged with said grease.

Grease composition for constant velocity joints

Patent JPH0579119B2

Grease composition

The invention is an improved grease composition comprising a major proportion of a grease, a hydroxy-containing soap thickener and a minor amount of a compound prepared by reacting a boron compound with an organic compound containing oxygen, sulfur and/or nitrogen or mixtures thereof.

Urea grease composition

Bir üre gresi bilesimi ve bu bilesimi ihtiva eden disliler olup, bu bilesim bir üre gresini ve ilave maddeler olarak asagidaki maddeleri içermektedir: (A) I formülü ile temsil edilen bir molibden dialkilditiokarbamat sülfid; bu formülde, R1 ve R2'nin her biri bagimsiz olarak, 1-24 karbon atomuna sahip olan alkil gruplarini kapsayan gruptan seçilen bir grubu temsil etmektedir; m, 0'dir ya da 1'den 3'e bir tamsayidir; ve n,1'den 4'e bir tamsayidir, bu durumun kosulu olarak, m ve n toplami 4 olmasidir, ve (B) II formülü ile temsil edilen bir trifenil fosfat. A urea grease composition and gears containing this composition, which contains a urea grease and the following substances as additional ingredients: (A) A molybdenum dialkyldithiocarbamate sulfide represented by formula I; wherein R1 and R2 each independently represent a group selected from the group consisting of alkyl groups having 1 to 24 carbon atoms; m is 0 or an integer from 1 to 3; and n is an integer from 1 to 4, provided that the sum of m and n is 4, and (B) a triphenyl phosphate represented by formula II.

Grease composition for constant velocity joint

A process for producing molybdenum oxysulfide dithiocarbamate

A process for producing molybdenum oxysulfide dithiocarbamate (MoDTC) by reacting [A] an aqueous solution or suspension prepared by reacting (a) a compound having hexavalent molybdenum, with (b) an alkali hydrogensulfide or an alkali sulfide, [B] a carbon disulfide, [C] a secondary amine and [D] a mineral acid, wherein [E] a reducing agent is added and reacted at any stage, and a lubricating oil composition containing the compound obtained according to said process. MoDTC can be efficiently produced in high yields by using a hexavalent molybdenum compound as a starting material, and the produced MoDTC has low corrosive action, excellent wear characteristics and excellent lubricating properties.

Grease for constant velocity joint

A grease composition for constant velocity joints comprises a base grease comprising a mineral oil and an urea compound, to which are added the following compounds: (1) 0.5 - 5 % by weight, based on the grease composition, of a molybdenum dithiocarbamate compound and 0.5 - 5 % by weight, based on the grease composition, of a molybdenum dithiophosphate compound as organo-molybdenum compounds, (2) 0.5 - 10 % by weight, based on the grease composition, of zinc dithiophosphate compound as an extreme pressure agent, and (3) 0.5 - 60 % by weight, based on the grease composition, of a copolymer of ethylene and branched α-olefin.

Rolling device

This rolling device is provided with an inner wheel, an outer wheel, and a plurality of rolling elements disposed freely rotatably between the inner wheel and outer wheel and is filled with a lubricant composition that includes a gelation agent and has a difference between worked penetration and unworked penetration of 40 - 130. At low torque, recovery properties and heat resistance are superior, and the life is long without lubricant leakage.

High speed rolling bearing

A high speed rolling bearing of a long life, having a low rotation torque and a small leakage amount of a grease, is provided. The high speed rolling bearing comprises retainers disposed so as to surround respective rolling elements between an outer member and an inner member thereof, and the respective rolling elements roll against a first contact face which is a contact face thereof with the outer member as well as a second contact face which is a contact face thereof with the inner member. The retainers are made of a polyamide, and the retainers made of the polyamide retains a grease composition, composed of a thickener and a base oil composed of a synthetic hydrocarbon oil having kinematic viscosity at 40°C in a range of 50 to 70 mm 2 /s, and containing 3 to 6 mass % of hydrocarbon molecules containing 28 to 32 carbon atoms.

Phenylamides of organoamine polyacetic acids as anti-oxidants in greases

Lubricant for constant speed joints

Grease composition for constant velocity joints

베이스 오일 (base oil) 및 우레아-기재 증점제를 함유하는 등속 조인트용 그리스 조성물로서, 그리스가 추가로, (A) 몰리브데늄 설파이드 디알킬디티오카바메이트 및 (B) 5,5'-디티오비스(1,3,4-티아디아졸-2-티올)을 함유하는 조성물; 상기 그리스로 패킹(packing)하는 것을 포함하는 등속 조인트 윤활 방법; 상기 그리스로 패킹된 등속 조인트. A grease composition for constant velocity joints containing a base oil and a urea-based thickener, wherein the grease further comprises (A) molybdenum sulfide dialkyldithiocarbamate and (B) 5,5'-dithiobis A composition containing (1,3,4-thiadiazole-2-thiol); A constant velocity joint lubrication method comprising packing with the grease; Constant velocity joint packed with grease.

Grease composition containing urea, urea-urethane, or urethane thickeners

A grease composition comprises a base oil selected from the group consisting of mineral lubricant base oils, synthetic lubricant base oils and mixtures thereof, (A) 2 to 25 wt %, based on the total weight of the composition, of a thickener selected from the group consisting of urea compounds, urea-urethane compounds, urethane compounds and mixtures thereof and (B) 0.2 to 5.0 wt. %, based on the total weight of the composition, of an ingredient selected from the group consisting of oxidized paraffins, diphenylhydrogen phosphite, hexamethyl phosphoric triamide and mixtures thereof.

Grease composition for constant velocity joints

Wafer carrier

(57)【要約】 【課題】 外部から又は結露により潤滑剤に水分が混入 したり、或いは振動の影響を受ける使用状況下であって も、十分なる軸受寿命を安価に得ることができ、特にオ ルタネータ等の自動車エンジンの電装・補機類に好適し た転がり軸受を得ることができるようにした。 【解決手段】 軸受内部に封入されるグリースの水素イ オン指数ｐＨを７〜１３の範囲に設定した。有機金属塩 又はＡＤＴＣをグリースに所定量添加した場合、平均粒 径２μｍ以下の無機系化合物をグリースに所定量添加し た場合、或いは芳香族アミンを含有したジウレア化合物 又は該ジウレア化合物の混合物を増稠剤としてグリース に添加した場合は、グリースの水素イオン指数ｐＨを５ 〜１３の範囲に設定した。

Diurea grease composition

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Grease composition for constant velocity joints

Grease composition for constant velocity joints

Calcium soap thickened steel mill grease

A high performance lubricating grease effectively lubricates and protects caster rollers and bearings in steel mills and other metal processing mills. The high performance grease has excellent extreme pressure and antiwear qualities and is economical, nontoxic and safe. The high performance gease can comprise a base oil, a calcium soap thickener, extreme pressure wear-resistant additives comprising tricalcium phosphate and calcium carbonate, and a water-resistant high performance polymer.

Lubricant for double joints of vehicles

Lubricant comprises: (a) a base oil; (b) a urea thickener; (c) an organic molybdenum compound selected from molybdenum dithiocarbamate and molybdenum thiophosphate; and (d) a calcium salt selected from salts of petroleum sulphonates, alkylarylsulphonates, Ca-salicylates, -phenolates, oxidised waxes, and super-crystallised salts of petroleum sulphonates, alkylarylsulphonates, Ca-salicylates, Ca-phenolates and oxidised waxes.

Grease containing diamine corrosion inhibitors

The present invention is directed to a grease containing base oil, a thickener and a hydrocarbyl substituted diamine additive exhibiting enhanced resistance to corrosion.

Grease Composition for Constant Velocity Joint

본 발명은 (a)기본오일; (b)우레아계 증감제; (c)몰리브데늄 디설파이드; 그리고 (d)산화왁스, 석유설폰산, 알킬아릴설폰산, 살리실산 및 페네이트의 금속염 또는 과염기금속염중에서 선택된 금속염 또는 과염기금속염을 필수성분으로 함유하는 등속조인트용 그리스 조성물에 관한 것이다. 또한 본 발명은 상기 (a) ∼ (d)를 필수성분으로 하고, 여기에 (e)금속을 함유하지 않은 황-인계 극압제 및 몰리브데늄 디티오포스페이트 중에서 선택된 극압제, 또는 (f)몰리브데늄 디티오카바메이트가 함유되어 있는 등속조인트용 그리스 조성물을 포함한다. 본 발명의 등속조인트용 그리스 조성물은 현저한 내마모 효과 및 현저한 피팅 억제효과를 갖고 있다. The present invention (a) basic oil; (b) urea sensitizers; (c) molybdenum disulfide; And (d) a grease composition for a constant velocity joint containing as an essential component a metal salt or an overbased metal salt selected from metal salts or overbased metal salts of wax oxide, petroleum sulfonic acid, alkylarylsulfonic acid, salicylic acid and phenate. In addition, the present invention is the extreme pressure agent selected from the sulfur-phosphorus extreme pressure agent and molybdenum dithiophosphate containing (a) to (d) as an essential component, and (e) metal-free, or (f) mol Grease compositions for constant velocity joints containing ribdenium dithiocarbamate. The grease composition for constant velocity joints of the present invention has remarkable wear resistance and remarkable fitting suppression effect.

Rolling bearing

A rolling bearing is composed of an outer race having an inner-race raceway on an outer peripheral wall thereof, an outer race having an outer-race raceway on an inner peripheral wall thereof, a plurality of rolling elements interposed for rotation between the outer-race raceway and the inner race, and a lubricant composition filled in a space, which is defined between the inner-race raceway and the outer-race raceway, at a position where the plurality of rolling elements are disposed. The rolling bearing features: (a) at least one of the inner-race and outer-race raceways is made of steel having an oxygen content not higher than 6 ppm; (b) at least a raceway surface of said at least one raceway has been hardened by heat treatment; (c) the lubricant composition comprises as a base oil a synthetic lubricant having a kinematic viscosity of 60-160 cSt at 40° C.; and (d) the lubricant composition further comprises 18-28 wt. % of a thickener which comprises a polyurea compound.

Grease composition

1. 청구범위에 기재된 발명이 속한 기술분야 본 발명은 그리스(grease) 조성물에 관한 것이다. 2. 발명이 해결하려고 하는 기술적 과제 종래 기술의 그리스 조성물이 외부 레이스 회전베어링에 적용될 경우, 베어링이 만족할만한 밀봉 및 내박편성을 나타내지만 조숙한 시징이 발생되며 윤활성이 수명도 항상 만족스러운것만은 아니었다. 이러한 사실을 연구한 결과, 합성 탄화수소 오일 또는 알킬디페닐 에테르 오일을 독립적을 또는 배합하여 함유하는 종래의 오일은 외부 레이스 회전베어링에 적용시킬 경우 윤활작용이 오래 지속되지 못한다는 사실을 발견하게 되었다. 따라서, 본 발명의 목적은 필수 성분으로서의 에스테르 오일을 포함하는 기초오일(base oil) 및 우레아-기초 농휴제를 함유하는 그리스 조성물 제공하는데 있다. 3. 발명의 해결방법의 요지 본 발명의 그리스 조성물은 기초오일의 초량을 기준으로 하여 에스테르 오일 10중량% 이상을 포함하며 40℃에서 50-200㎟/sec의 운동학적 점도를 갖는 기초오일 및 그리스 조성물의 충량을 기준으로 하여 다음 일반식(Ⅰ)으로 나타내어지는 디우레이 화합물 15-35중량%을 함유한다. (위식에서, R 2 는 방향족 C 6∼15 탄화수소기이며; R 1 및 R 3 는 동일하거나 서로 다를 수 있으며; 각각 방향족 C 6∼15 탄화수소기 혹은 지방족 C 8∼12 탄화수소기를 나타내고, R 1 및 R 3 의 총 몰에서 방향족 탄화수소기의 비율은 50-100몰%이다.) 4. 발명의 중요한 용도 본 발명의 그리스 조성물은 내박편성(耐剝片性), 누출 방지성, 및 저소음성에서 우수하며, 고온 및 고속의 조건하에서 조숙한 시징(seizing)을 방지해주므로 외부 레이스 회전형 밀봉 볼베어링(outer race rotating type sealed ball bearing)에 적용시키기에 적합하다.

Method of preparing greases

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 compositions

The invention relates to lubricating grease compositions which consist of (a) an oil based on hydrocarbons; (b) a perfluorinated polyalkyl ether oil of the general formula A' - (O-CF2)v-(O-C2F4)w-(O-C3F6)x-(O-C4F8)y-(O-CF2CF(CF3))z-O-A'', in which A' is equivalent to -CF3, -C2F5, -C3F7, -CF2T, T being H or Cl, and v, w, x, y and z are integers >/= 0; (c) a diurea as the thickening agent; (d) conventional additives; and (e) organic and inorganic solid lubricating grease compositions. The invention also relates to a process for preparing said lubricating grease compositions.

Fibrous polyurea grease

Grease composition and this grease composition bearing enclosed

在基油中配合了增稠剂和添加剂构成的润滑脂组合物中，上述基油在40℃的动粘度为20～150mm 2 /s，上述添加剂的以下式(1)表示的2元酸金属盐的含量，相对于基油及增稠剂的合计量100重量份为0.05～5重量份，式(1)中，M 1 及M 2 表示相同的或不同的碱金属，R 1 表示脂肪族烃基或芳香族烃基。

Urea thickened carbonate ester grease composition

An improved lubricating grease composition is herein disclosed, which comprises a base oil and a thickening agent, wherein the base oil comprises 50 to 100% by weight of a carbonate ester compound represented by the following general formula (I): R 1 O—CO—OR 2   (I) wherein R 1 and R 2 each independently represents a saturated or unsaturated, linear or branched alkyl group having 6 to 30 carbon atoms, on the basis of the total weight of the base oil. The lubricating grease composition shows remarkably improved acoustic life and an improved frictional coefficient, as compared with those observed for conventional grease compositions.

High-temperature constant-velocity-joint grease

High temperature grease comprises mineral and/or synthetic oil base; urea cpd. as thickener; and 2-5 wt.% dispersed solid lubricant comprising MoS2, graphite, PTFE and at least one organic molybdenum cpd.

Urea grease composition

Lubricating grease composition

Silicone grease

Grease to be sealed in bearing

A grease to be sealed in bearings which shows good lubricating properties within a wide temperature range from low to high temperatures, whereby it can prevent bearing noise while it is cold, and maintain its good properties including excellent high-temperature durability for a long period of time. The grease contains a base oil made up of a synthetic hydrocarbon oil and an ester synthetic oil having eight or more ester groups arranged in a comb-like fashion on one side of an oil chain molecule made up of eight of more carbon atoms, as expressed by Formula below, the ratio of contents in weight of the synthetic hydrocarbon oil and the ester synthetic oil being 0.65-0.75 : 0.35-0.25, and 5-20 wt% of a urea thickening agent. The grease may further contain 0.1-10 wt% dithiophosphate as an extreme pressure agent. The grease may be used as grease to be sealed in a ball bearing for supporting a pulley engaging belts for transmitting automotive engine torque to prevent noise immediately after the engine is started.

Grease composition

Urea grease composition

내용없음. None.

Adhesive grease composition

내용 없음. No content.

Use of a grease composition for homokinetic coupling

Grease composition for constant velocity joint

A grease composition for a constant velocity joint involves a base oil containing a thickener and boron nitride powders.

Grease composition for constant velocity joints

Grease composition with improved rust prevention and abrasion resistance properties

A grease composition comprising a base oil and a thickener, which grease additionally comprises from 0.05% to 30% by weight of sodium thiosulphate and at least 0.1% by weight of one or more additives (A) selected from the group comprising calcium salicylate, magnesium salicylate, calcium phenate and/or calcium sulphonate, based on the total grease composition; use of said grease composition to improve rust prevention and abrasion resistance, and a method for preparing said grease composition.

Grease composition