СМАЗОЧНЫЕ КОМПОЗИЦИИ ДЛЯ ТРАНСМИССИЙ АВТОМОБИЛЕЙ

Настоящее изобретение относится к смазочной композиции для коробок передач, содержащей: (а) органическое соединение молибдена, выбранное из по меньшей мере одного органического комплекса молибдена, полученного путем реакции: (i) жира типа моно-, ди- или триглицерида или жирной кислоты, (ii) источника амина формулы (I), где X1 и X2 представляют собой О или N, а n и m равны 1, если X1 или X2 представляет собой О, и n и m равны 2, если X1 или X2 представляет собой N, и (iii) источника молибдена, выбранного из триоксида молибдена или молибдатов, в достаточном количестве для обеспечения от 0,1 до 20,0% молибдена в расчете на массу комплекса, (б) одну или более чем одну противоизносную и противозадирную присадку, выбранную из тиа(ди)азолов, (в) одну или более чем одну фосфорсодержащую и/или фосфорно-сернистую противоизносную и противозадирную присадку, выбранную из фосфитов, фосфатов, фосфонатов, тиофосфатов или тиофосфитов, (г) по меньшей мере одно основное масло; причем указанная смазочная ...

Трансмиссионное гипоидное масло

Смазочная композиция

Смазочная композиция

Liquid lubricant.

LUBRICANT COMPOSITION WITH IMPROVED PROTECTION AGAINST CORROSION OF CAMPS

LUBRICANT FOR HAND TRANSMISSIONS WITH BETTER ACHIEVEMENT OF THE SYNCHRONOUS TRANSMISSIONS

MIXTURE, CONTAINING BASIC OILS OF THE GROUP OF III AND THE GROUP OF IV

AT LEAST A HYDROXYSUBSTITUIERTE CARBONIC ACID ABSTENTION TRANSMISSION OIL COMPOSITION

HYDRATISIERTES ALKALI METAL BORATE AND HEXAGONAL BORON NITRIDE ABSTENTION ADDITIVE COMPOSITION FOR TRANSMISSION OILS

SEVERAL ANTIOXIDANTIEN ABSTENTIONS LUBRICANT COMPOSITIONS

FLUSSIGE HYDROCARBON COMPOSITION CONTAINING A SUCCINIMID DETERGENS

USE FROM POLYOLE ESTERS TO THE ENERGY CONSERVATION IN POWER TRANSMISSION FLUID

LUBRICANT COMPOSITION FOR TRANSMISSIONS

SULPHONATED OLEFINE AS ANTI-WEAR ADDITIVES AND COMPOSITIONS OF IT.

NITROGEN-FREE ESTERS OF CARBOXY EXHIBITING INTERCPOLYMERS.

SULFURIZIERTE COMPOSITIONS AND THESE CONTAINING AUXILIARY CONCENTRATES AND LUBRICATING OILS.

AS WELL AS PHOSPHITESTERZUBEREITUNGEN LUBRICANTS AND FUNCTIONAL LIQUIDS, THIS CONTAINING.

LUBRICATING OIL COMPOSITIONS AND THEIR USE

BOUND, AROMATIC FLIESSPUNKTERNIEDRIGER.

MIXED PHOSPHORUS CONNECTIONS AND THESE CONTAINING LUBRICANTS

FLUSSIGE HYDROCARBON COMPOSITION CONTAINING A SUCCINIMID DETERGENS

LUBRICATING OIL COMPOSITION

POLYALPHAOLEFIN DIMERE WITH LOW KINEMATIC VISCOSITIES

Functionalized copolymers and lubricating compositions thereof

The present invention relates to a lubricating composition containing an oil of lubricating viscosity and a dimercaptothiadiazole salt of a copolymer comprising units derived from monomers (i) an ?-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof (typically carboxylic acid groups or an anhydride), are partially esterified with an alcohol, or mixtures thereof, and wherein at least a portion of carboxylic acid groups not esterified are reacted with an amine. The invention further provides for a lubricating composition containing said copolymer. The invention further provides a method and use of lubricating composition in a mechanical device.

SULPHURIZATION OF SIOBUTYLENE

TERTIARY DIAMIDE BASED GREASE

OIL ADDITIVE

The present disclosure relates to the use of a C12-20 polyalkyl methacrylate polymer as a lubricating oil additive such that the C12-20 polyalkyl methacrylate polymer accounts for 0.1 to 0.3 % by weight of the finished lubricating oil. The use comprises the addition of said C12-20 polyalkyl methacrylate polymer to a lubricating oil based on mineral oil to improve the filtration of said lubricating oil based on mineral oil. Further, the present disclosure relates to finished lubricating oils resulting from such a use and methods of lubricating the metal surface of a gear or axle comprising applying to the metal surface such a finished lubricating oil.

TRANSMISSION FLUID COMPOSITIONS AND METHOD

LUBRICANT ADDITIVE FORMULATION CONTAINING MULTIFUNCTIONAL DISPERSANT

The present invention provides a lubricating composition comprising (a) an oil of lubricating viscosity; (b) a friction modifier; (c) a corrosion inhibitor; (d) an antiwear agent; and (e) a product prepared by heating together: (i) a dispersant; (ii) 2,5-dimercapto-1,3,4-thiadiazole or a hydrocarbyl-substituted 2,5-dimercapto-1,3,4-thiadiazole, or oligomers thereof; (iii) a borating agent;and (iv) optionally a dicarboxylic acid of an aromatic compound selected from the group consisting of 1,3 diacids and 1,4 diacids, or (v) optionally a phosphorus acid compound, said heating being sufficient to provide a product of (i), (ii), (iii) and optionally (iv), which is soluble in an oil of lubricating viscosity. The invention further provides a use for the lubricating composition in a transmission.

LUBRICANT COMPOSITIONS COMPRISING MULTIPLE ANTIOXIDANTS

A composition is disclosed that comprises lubricating oil and at least a first antioxidant and a second antioxidant, the first antioxidant being a secondary diarylamine and the second antioxidant being a 2,2,4-trialkyl-1,2- dihydroquinoline or a polymer thereof. Also disclosed is a method of increasing the oxidation stability of a lubricating oil comprising adding thereto at least a first antioxidant and a second antioxidant, the first antioxidant being a secondary diarylamine and the second antioxidant being a 2,2,4-trialkyl-1,2-dihydroquinoline or a polymer thereof.

LUBRICATING FLUIDS WITH LOW TRACTION CHARACTERISTICS

GEAR OIL COMPOSITION

The gear oil composition comprises a base oil (A) and another base oil (B), described, below, and at least one species of additive for gear oil, and has a kinematic viscosity of 80 mm2/s or less at 40~C: (A): a mineral based oil and/or hydrocarbon-based synthetic oil having a kinematic viscosity of 3.5 to 7 mm2/s at 100~C, and (B): a mineral-based oil and/or hydrocarbon-based synthetic oil having a kinematic viscosity of 20 to 52 mm2/s at 100~C.

ALKALINE EARTH ALKYLARYL SULFONATES, THEIR APPLICATION AS AN ADDITIVE FOR LUBRICATING OIL, AND METHODS OF PREPARATION

An alkaline earth alkylaryl sulfonate having a BN of at least 250, wherein the aryl radical is not phenol, wherein the alkyl chain is a linear chain that contains between 14 and 40 carbon atoms, and wherein the mole % of the aryl- sulfonate radical fixed on position 1 or 2 of the linear alkyl chain is between 13% and 30%. Such an alkaline earth alkylaryl sulfonate has improved compatibility, solubility, and foaming performances while having low color and no skin formation. The starting alkylate has a low iodine number, a very high level of monoalkylate, and, as a consequence, a high yield at the sulfonation step.

POWER TRANSMISSION FLUIDS WITH ENHANCED ANTISHUDDER DURABILITY AND HANDLING CHARACTERISTICS

A finished power transmitting fluid having enhanced friction durability and improved .mu./v characteristics on paper, steel and advanced friction materials such as carbon fiber, and which may provide a lubricant composition that carries minimal concern for skin sensitization and related health, safety, and environmental issues, can contain lubricating base oil, a friction modifier produced by reacting a polyamine with an aliphatic mono acid such as oleic or isostearic acid under conditions to form a mixture of 1,2-disubstituted imidazoline containing components, wherein further acylation of residual active nitrogens with mono or diacids or anhydrides affords friction modifier compositions having enhanced frictional and handling characteristics.

POWER TRANSMISSION FLUIDS WITH IMPROVED EXTREME PRESSURE LUBRICATION CHARACTERISTICS AND OXIDATION RESISTANCE

Power transmission fluids exhibiting improved antiwear properties containing a novel antiwear additive formed by reacting elemental sulfur and a dialkyl phosphite in the presence of an acylated amine compound. Also present in the fluid are dispersant, friction modifier, antioxidant and viscosity modifier.

COPOLYMERS OF OLEFINS OR OF OLEFINS AND NON CONJUGATED DIENES WITH UNSATURATED DERIVATIVES OF CYCLIC IMIDES

PROCESS FOR MODIFYING UNSATURATED TRIACYLGLYCEROL OILS; RESULTING PRODUCTS AND USES THEREOF

A process for modifying an unsaturated polyol fatty acid ester stock, such as an unsaturated triacylglycerol oil, to enhance its fluidity and/or oxidative stability is provided. The method includes reacting the unsaturated polyol fatty acid ester stock with cyclopropanating agent. Lubricants containing cyclopropanated polyol fatty acid ester and methods for their production and use are also provided.

LOW TEMPERATURE LUBRICANTS

COMPOSITIIONS COMPRISING AT LEAST ONE HYDROXY-SUBSTITUTED CARBOXYLIC ACID

There is provided a fluid composition including at least one hydroxy-substituted carboxylic acid. Also provided are methods of inhibiting at least one of corrosion and rust and of improving at least one of lubricity and lead compatibility. Also provided are lubricating, fuel, anticorrosion, antirust, and additive concentration compositions.

LUBRICATING FLUIDS WITH LOW TRACTION CHARACTERISTICS

The invention relates to lubricating fluids and oil formulations which provide exceptionally low traction, a method of lowering traction coefficients in lubricating compositions, and to uses of such compositions.

ALKYL PHENOL-FORMALDEHYDE CONDENSATES AS FUEL AND LUBRICATING OIL ADDITIVES

Additives for improving the low temperature flow properties of hydrocarbon oils are disclosed, which comprise the condensation reaction product of alkylated phenol and aldehyde, wherein: (a) the polymer composition has a number average molecular weight of at least about 3,000 and a molecular weight distribution of at least about 1.5; (b) in the alkylated phenol reactant the alkyl groups (i) are essentially linear; (ii) have between 6 and 50 carbon atoms; and (iii) have an average number of carbon atoms between about 12 and 26: and (c) not more than about 10 mole % of the alkyl groups on the alkylated phenol have less than 12 carbon atoms and not more than about 10 mole % of the alkyl groups on the alkylated phenol have more than 26 carbon atoms. The additives may also be sulfurized, or produced in a branched backbone form in which monomer reactants are copolymerized with certain tri- or tetrafunctional comonomers. Blends of these additives with various hydrocarbon oils, and particularly ...

FLUID COMPOSITION

A stable fluid composition is provided by this invention which contains a cis-o-tercyclohexyl compound and a trans-o-tercyclohexyl compound at a weight ratio of 25:75 - 65:35. This composition is useful as a fluid for traction drive.

GRAFT COPOLYMERS PREPARED FROM SOLVENT-FREE REACTIONS AND DISPERSANT DERIVATIVES THEREOF

Compositions useful as oil additives are prepared in a solvent or a solvent free system by reacting (B) an unsaturated carboxylic acid reagent with (A) a hydrogenated block copolymer in the presence of (C) free radical initiators. The formed reaction product (D) can be further reacted with a (E) primary amine-containing compound in a s o l v e n t o r a s o l v e n t f r e e s y s t e m .

ALKYL PHENOL-SULFUR CONDENSATES AS FUEL AND LUBRICATING OIL ADDITIVES

Additives for improving the low temperature flow properties and oxidative stability of hydrocarbon oils are disclosed, which comprise the condensation reaction product of alkylated phenol and sulfurizing agent, wherein: (a) the polymer composition has a number average molecular weight of at least about 3,000 and a molecular weight distribution of at least about 1.5; (b) in the alkylated phenol reactant the alkyl groups (i) are essentially linear; (ii) have between 6 and 50 carbon atoms; and (iii) have an average number of carbon atoms between about 12 and 26; and (c) not more than about 10 mole percent of the alkyl groups on the alkylated phenol have less than 12 carbon atoms and not more than about 10 mole percent of the alkyl groups on the alkylated phenol have more than 26 carbon atoms. The additives may also be produced in a branched backbone form in which monomer reactants are copolymerized with certain trior tetrafunctional comonomers. Blends of these additives with various hydrocarbon ...

ACYLATED NITROGEN-CONTAINING COMPOUNDS AS FUEL AND LUBRICANT ADDITIVES

HIGH BORON FORMULATIONS FOR FLUIDS FOR CONTINUOUSLY VARIABLE TRANSMISSIONS

Continuously variable transmission can be lubricated by supplying to them a composition of (a) an oil lubricating viscosity; (b) a dispersant; and (c) a detergent. At least one of the dispersant (b) and the detergent (c) is a borated species, and the amount of boron present in the composition is at least 250 ppm and is sufficient to impart improved friction and anti-seizure properties to the composition when employed in said transmission.

THIO-BIS-(HYDROCARBYL DIACID MATERIALS) AS OIL ADDITIVES

POLYMERIC DISPERSANT ADDITIVE USEFUL IN FUELS AND LUBRICANTS

MIST LUBRICATION WITH OIL CONTAINING A POLYMERIC ADDITIVE

DISPERSANTS AND DISPERSANT VISCOSITY INDEX IMPROVERS FROM SELECTIVELY HYDROGENATED POLYMERS: BLENDS WITH LOWER MOLECULAR WEIGHT COMPONENTS

... ▓▓▓The invention provides dispersants and dispersant viscosity index improvers ▓which include polymers of conjugated dienes which have been hydrogenated, ▓functionalized, optionally modified, and post treated. The dispersant ▓substances include a copolymer of two different conjugated dienes. The ▓polymers are selectively hydrogenated to produce polymers which have highly ▓controlled amounts of unsaturation, permitting highly selective ▓functionalization. The polymers may be blended with lower molecular weight ▓components. Also provided are lubricant fluids, such as mineral and synthetic ▓oils, which have been modified in their dispersancy and/or viscometric ▓properties by means of the dispersant substances of the invention. The ▓addition of minor amounts of lower molecular weight ocmponents improves ▓compatibility and reduces haze. Also provided are methods of modifying the ▓dispersancy and/or viscometric properties of lubricating fluids such as ▓mineral and synthetic lubricating oils.

LUBRICATING OIL COMPOSITION

Lubricating oil composition comprising .beta.-dithiophosphorylated propionic acid (A), triaryl phosphate (B) and base oil comprising mineral oil and/or synthetic oil.

LUBRICATING COMPOSITION

There is provided a lubricating composition having a major amount of a lubricating oil having less than about 40% by weight alkylcycloparaffins and a minor amount of at least one diarylamine, and processes for making and using thereof.

TRANSESTERIFIED FATTY ESTERS FOR LUBRICANT AND REFRIGERANT OIL SYSTEM

This invention is a composition that includes a transesterified fatty acid ester resulting from the reaction of a fatty acid ester, in the presence of an acid, with a hydroxyl-containing compound. The fatty acid esters of the invention are selected from those with a carbon number of eight to twenty. The hydroxyl-containing compound is an alcohol having a carbon number between one and eighteen. The resulting composition is useful as a lubricant, as a heat transfer agent, as a rheological modifier and as a corrosion/moisture inhibitor, among other uses.

LUBRICATING COMPOSITION CONTAINING AN ANTIWEAR AGENT

Lubrication additives contain sulphur, which is bad for the environment. The invention provides a lubricating composition containing an antiwear agent and an oil of lubricating viscosity, containing a non-metallic cationic pnictogen salt of a hydroxy-carboxylic acid, or mixtures thereof. The invention further relates to the use of the lubricating composition in an internal combustion engine, or a driveline device.

LUBRICANT COMPOSITIONS FOR MOTOR VEHICLE TRANSMISSIONS

L'invention a pour objet une composition lubrifiante comprenant : (a) Un composé organomolybdène, (b) Un ou plusieurs additifs antiusure et extrême pression choisis parmi les thia(di)azoles, (c) Un ou plusieurs additifs antiusure et extrême pression phosphoré et/ou phosphosoufré choisi parmi les phosphites, phosphates, phosphonates, thiophosphates ou thiophosphites, ladite composition lubrifiante ayant une teneur massique en molybdène comprise entre 90 et 350 ppm. Utilisation pour la lubrification des boites de vitesses.

DIESEL LUBRICANTS AND METHODS

Title: DIESEL LUBRICANTS AND METHODS A diesel lubricant exhibiting improved ability to minimize undesirable viscosity increases when used in diesel engines is described. More particularly, in accordance with the present invention, a diesel lubricant is described which comprises a major amount of an oil of lubricating viscosity and a minor amount, sufficient to minimize undesirable viscosity increases of the lubricant when used in diesel engines, of a composition comprising (A) at least one carboxylic derivative composition produced by reacting at least one substituted succinic acylating agent with at least one amino compound containing at least one -NH- group wherein said acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from polyalkene characterized by an Mn value of at least about 1200 and an Mw/Mn ratio of at least about 1.5, and wherein said acylating agents are characterized by the presence within their structure of an average ...

RUST-PREVENTIVE AND CORROSION-COMBATING ADDITIVES FOR LUBRICATING OILS, AND LUBRICANT COMPOSITIONS CONTAINING SAME

RUST-PREVENTING AND CORROSION-COMBATING ADDITIVES FOR LURRICATING OILS, AND LUBRICANT COMPOSITIONS CONTAINING SAME. Boric acid esters of N-(2-hydroxyethyl)-amides, or of N,N-bis(2-hydroxyethyl)-amides of C12-C22 saturated or unsaturated fatty acids are useful as friction modifiers, rust-preventing- and corrosion-combating additives for lubricant oils. Lubricant compositions containing such additives are also described.

LUBRICANT OIL COMPOSITION

ETHYLENE ALPHA-OLEFIN POLYMER SUBSTITUTED MANNICH BASE USEFUL AS MULTIFUNCTIONAL VISCOSITY INDEX IMPROVER FOR OLEAGINOUS COMPOSITION

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

ADDITIVE COMBINATIONS FOR LUBRICANTS AND FUNCTIONAL FLUIDS

This invention relates to a composition, comprising: (A) an acylated amine having a base number in the range of about 45 to about 90, said acylated amine being the product made by contacting (A)(I) at least one carboxylic acid acylating agent with (A)(II) at least one polyamine, said polyamine (A)(II) being selected from the group consisting of (A)(II)(a) a product made by contacting at least one hydroxy material with at least one amine, (A)(II)(b) an alkylene polyamine bottoms product, and (A)(II)(c) a product made by contacting a hydroxy material with an alkylene polyamine bottoms product; (B) a boron compound; and (C) an organic phosphorus acid or ester, or derivative of said phosphorus acid or ester. In one embodiment, this composition further comprises (D) a thiocarbamate. In one embodiment, this composition further comprises (E) a nitrogencontaining ester of a carboxy-containing interpolymer. These compositions are useful as additives for lubricants and functional fluids, and are ...

LUBRICATING OIL COMPOSITION

A lubricating oil composition containing from 0.01 to 0.8% by weight, based on the whole composition, of a phosphoric ester and/or a phosphorous ester, from 50 to 2,000 ppm (in terms of molydbenum) of sulfurized oxymolybdenum dithiocarbamate having at least one hydrocarbyl group having 8 to 18 carbon atoms and from 0.3 to 2.5% by weight of a calcium salicylate having a total base number of 10 to 100.

AUTOMATIC TRANSMISSION AND WET BRAKE FLUIDS AND ADDITIVE PACKAGES THEREFOR

Case EI-6335 AUTOMATIC TRANSMISSION AND WET BRAKE FLUIDS AND ADDITIVE PACKAGES THEREFOR Of the Disclosure Oil-based functional fluid compositions formulated for use as automatic transmission fluid, fluid for a wet brake system, or a friction-depending lubricant are improved by including in the composition a minor amount of at least one alcohol or polyol having less than 12 carbon atoms in the molecule. This resultsin a desirable increase in the dynamic and/or static coefficients of friction ofautomatic transmission or other frictional surfaces contacted by the composition. Preferred for this use is a composition formed by heating at least one ashless dispersant containing basic nitrogen and/or at least one hydroxyl group with a combination of at least (i) an inorganic acid of phosphorus, (ii) a boron compound, and (iii) a polyol having less than 12 carbon atoms, so that a liquid composition is formed. The boron compound and the inorganic phosphorus acid are preferably co-present during ...

LUBRICATING COMPOSITION

A lubricating composition of the present invention comprises a base oil for lubricating oil or base grease; at least one molybdenum compound as component (A) selected from the group consisting of a selected sulfurized oxymolybdenum dithiocarbamate, a selected sulfurized oxymolybdenum dithiophosphate and a selected molybdenum amine compound; and a (poly)glycerol ether and/or a (poly)oxyalkylene glycol monoalkyl ether as component (B).

OIL SOLUBLE POLYETHERS

This invention discloses an oil soluble polyether composition, comprising: wherein R is either a C14-20 alkyl or C9-12 alkylphenyl; A is where x is from 7 to 13; i, j, k, and l are each independently from 0 to 35 and the sum (i + j + k + l) is from 8 to 35; o, p, and q are each independently 0 to 1 and the sum (o + p + q) is from 0 to 3; and, the average mole ratio of the glycidyl ether monomeric unit A to the initiator unit RO is from 0.4:1 to 1.5:1. This invention also discloses an anionic polymerization process for producing an oil soluble polyether composition, comprising reacting a mixture of propylene oxide and a C8-14 alkyl glycidyl ether with an initiator obtained from the group consisting of a C14-20 alkanol and a C9-12 alkylphenol under the influence of an alkaline metai alkoxide catalyst.

LUBRICATING OILS OF IMPROVED FRICTION DURABILITY

The frictional durability of lubricating oils, including power transmitting fluids and in particular automatic transmission fluids, are improved by incorporating a combination of low potency friction modifiers, ashless and/or metal-containing antioxidants, and oil-soluble phosphorus-containing compounds.

POLYSULFIDE OLEFINS COMPOSITIONS, THEIR PREPARATION AND THEIR USE AS ADDITIVES FOR LUBRICANTS.

ДИАРОМАТИЧЕСКИЕ АМИНЫ

Предоставлены соединения диароматического амина, или их изомеры, или смеси изомеров, имеющие общую формулу (1), где n, m, R1, R2, R4, R и R5 определены, как описано выше. Также предоставлены композиции смазочных масел и композиции, содержащие стабилизатор, содержащие соединения диароматического амина.

Star polymer and lubricating composition thereof

The present invention relates to a lubricating composition containing an oil of lubricating viscosity and a star polymer that has at least two inner blocks, at least one of which is in turn bonded to one or more outer blocks. The invention further relates to methods of lubricating a mechanical device with the lubricating composition.

Lubricating oil composition

NEW LUBRICATING COMPOSITIONS

USEFUL NITROPHENOLS LIKE ADDITIVES FOR FUELS AND LUBRICANTS

NEW POLYMERS INHIBITING THE FORMATION OF FOAM AND LUBRICANTS THE CONTAINER

Additive compositions for hydrocarbon oils consisted organic compounds comprising of sulphur and nitrogen

TITANIUM-CONTAINING LUBRICATING OIL COMPOSITION

L'invention concerne une composition d'huile lubrifiante totalement formulée comprenant au moins un dispersant du type succinimide, un détergent contenant un métal, au moins un antioxydant et un composé de titane soluble dans les hydrocarbures. Elle concerne également un concentré d'additifs pour lubrifiants. Application : Utilisation de ladite composition pour réduire la formation des boues dans un moteur à combustion interne.

NEW LUBRICATING COMPOSITION

AGENTS DISPERSANT AMELIORES ET COMBUSTIBLES, HUILES LUBRIFIANTES ET CONCENTRES LES CONTENANT

L'invention concerne des dispositions utiles comme agents dispersants pour lubrifiants et pour combustibles. Ces compositions sont préparées en faisant réagir un produit intermédiaire A, des formules : ...

Process of obtaining polymers at high point of boiling

LUBRICANT FOR A CONTROLLED-SLIP DIFFERENTIAL

PRODUCTS OF CONDENSATION OF MANNICH NITROGEN AND SULPHIDES USEFUL LIKE ADDITIVES FOR LUBRICANTS AND FUELS

AMINE SALTS OF PARTIAL ESTERS OF POLYMERISED OR CONDENSED FATTY ACIDS AND THEIR USE AS CORROSION INHIBITORS

New polyether-thioethers and their method of preparation

Process of conservation of the trimmings or joints rubber of the casings with oil bath

New additives with antioxydant action for the organic compositions such as the hydrocarbon fuels, lubricants and polymers

Lubricating with the sulphur and its manufactoring process

Process of improvement of lubricating qualities high pressures of oils

Diffuser of current of gas fluids

LUBRICATING COMPOSITIONS FOR TRANSMISSIONS.

T LEUR APPLICATION EN TANT QU'ADDITIFS POUR COMBUSTIBLES ET LUBRIFIANTS

La présente invention concerne des compositions organiques contenant de l'azote. Ces compositions sont préparées en faisant réagir : A. Au moins un nitrophénol de la formule : ...

Lubricants for extreme pressures

New organic phosphates and lubricating oils the container

A method for preventing the foam formation in hydrocarbon oils

Manufactoring process of organic compositions containing of phosphorus

COMPOSITION LUBRIFIANTE A BASE D'UN FLUIDE DE POLYOXYALCOYLENE ET BOITE DE VITESSES CONTENANT CETTE COMPOSITION

L'INVENTION CONCERNE UNE COMPOSITION LUBRIFIANTE A BASE D'UN FLUIDE DE POLYOXYALCOYLENE ET UNE BOITE DE VITESSES CONTENANT CETTE COMPOSITION. LA COMPOSITION COMPREND COMME HUILE LUBRIFIANTE DE BASE UN FLUIDE DE POLYOOXYALCOYLENE ET COMME ADDITIFS DES PROPORTIONS MINEURES DE: 1.UNE THIODIARYLAMINE; 2.UNE DIARYLAMINE ALCOYLEE; 3.UNE N-ACYL SARCOSINE. CETTE COMPOSITION NE DONNE PAS NAISSANCE A DES BOUES ET FOURNIT UNE BONNE PROTECTION CONTRE LA CORROSION A CHAUD DES METAUX FERREUX.

Hvi lubricating compsns - contg mineral oils and esters of polyalkylene glycol ethers

NEW LUBRICATING COMPOSITIONS

FUNCTIONAL FLUID HAS LIFESPAN PROLONGEE

LUBRICANT COMPOSITIONS FOR TRANSMISSIONS

LUBRICANT AND FUEL ADDITIVE

ETHYLENE HYDROCARBONS SULPHIDES BY the ELEMENTARY SULPHUR IN THE PRESENCE OF CARBONATE OR Of ALKALINE HYDROGENOCARBONATE, THEIR PREPARATION AND THEIR USES

On décrit des produits soufrés dérivant d'hydrocarbures mono ou polyéthyléniques par sulfuration au moyen de soufre élémentaire en présence de carbonate ou d'hydrogénocarbonate de métal alcalin et en présence d'eau et/ou d'au moins un alkylèneglycol. Les produits soufrés, qui peuvent contenir de 20 à 70% en masse de soufre, sont généralement solubles dans les lubrifiants, dont ils améliorent les propriétés antiusure et extrême-pression. Ils peuvent également être utilisés comme agents de sulfuration notamment dans la préparation de catalyseurs de raffinage de produits pétroliers.

Combinations of Phosphorous-Containing Compounds for Use as Anti-Wear Additives in Lubricant Compositions

The present disclosure relates to a lubricant composition comprising a first phosphorus compound, a second phosphorus compound, and a third phosphorus compound, wherein the first phosphorus compound is present in the lubricant composition in an amount to provide between about 120 and 350 ppm phosphorus. The lubricant composition may provide robust anti-wear and reduced pitting. 1. A lubricant composition comprising: (i) reacting an O,O-dihydrocarbyl phosphorodithioic acid with an epoxide to form a product;', '(ii) reacting the product with phosphorus pentoxide to produce an acid phosphate intermediate; and', '(iii) neutralizing at least a major portion of the intermediate with at least one first amine;, '(a) a first phosphorus compound formed by(b) a second phosphorus compound formed by reacting a sulfur source with a dihydrocarbyl phosphite;(c) a third phosphorus compound formed by reacting an acid phosphate with at least one second amine;(d) wherein the first phosphorus compound is present in the lubricant composition to provide between about 120 and about 350 ppm phosphorus to the lubricant composition and said first and second amine may be the same or different.2. The lubricant composition of claim 1 , wherein the total amount of phosphorus present in the lubricant composition is between about 500 and about 1500 ppm.3. The lubricant composition of claim 1 , wherein the total amount of phosphorus present in the lubricant composition is between about 800 and about 1100 ppm.4. The lubricant composition of claim 1 , wherein the O claim 1 ,O-di-hydrocarbyl phosphorodithioic acid is O claim 1 ,O-di(4-methyl-2-pentyl) phosphorodithioic acid.5. The lubricant composition of claim 1 , wherein the O claim 1 ,O-di-hydrocarbyl phosphorodithioic acid is O claim 1 ,O′-di-n-hexylphosphorodithioic acid.6. The lubricant composition of claim 1 , wherein the epoxide is selected from the group consisting of: ethylene oxide claim 1 , propylene oxide claim 1 , styrene oxide claim 1 , ...

VISCOSITY INDEX IMPROVER AND LUBRICATING OIL COMPOSITION

The present invention aims to provide a viscosity index improver excellent in shear stability and having a low HTHS viscosity and a high viscosity index. The viscosity index improver of the present invention contains a (co)polymer (A) containing a polyolefin-based monomer as an essential monomer unit, and a base oil, wherein the absolute value of difference in solubility parameter between the (co)polymer (A) and the base oil is 0.8 to 2.0 (cal/cm). 1. A viscosity index improver comprising:a (co)polymer (A) containing a polyolefin-based monomer as an essential monomer unit; anda base oil,{'sup': 3', '1/2, 'wherein the absolute value of the difference in solubility parameter between the (co)polymer (A) and the base oil is 0.8 to 2.0 (cal/cm).'}2. The viscosity index improver according to claim 1 ,{'sup': 3', '1/2, 'wherein the solubility parameter of the base oil is 7.8 to 9.5 (cal/cm).'}4. The viscosity index improver according to claim 3 ,wherein the hydrocarbon polymer containing at least one of isobutylene or 1,2-butylene as an essential structural unit in the formula (1) is a polymer in which the total number of isobutylene and 1,2-butylene based on the total number of structural units is 30 mol % or more.6. The viscosity index improver according to claim 5 ,wherein the (co)polymer (A) is the copolymer containing, as monomer units, 1 to 50% by weight of the monomer (a) and 1 to 80% by weight of the monomer (b) based on the weight of the (co)polymer (A), with the total amount of the monomers (a) and (b) being 10% by weight or more.7. The viscosity index improver according to claim 5 ,wherein the (co)polymer (A) is the copolymer further containing, as a monomer unit, at least one of an alkyl (meth)acrylate (c) having a C1-C4 alkyl group or an alkyl (meth)acrylate (d) having a C12-C36 linear alkyl group.9. The viscosity index improver according to claim 8 ,wherein the (co)polymer (A) is the copolymer containing, as monomer units, 5 to 40% by weight of the monomer (a ...

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 , ...

Mineral base oil and lubricating oil composition

Provided is a mineral base oil having a kinematic viscosity at 40° C. of 4.0 mm 2 /s or more and less than 6.0 mm 2 /s, a kinematic viscosity at 100° C. of 1.0 mm 2 /s or more and less than 2.0 mm 2 /s, and a flash point of 140° C. or higher. A lubricating oil composition containing the mineral base oil has a high flash point while having a low viscosity and thus having excellent fuel-saving performance when used as a driving system oil and the like.

Process for Preparing Polymers and Compositions Thereof

The present invention provides a process for preparing a polymer, employing the steps of: (1) contacting a free radical initiator; a chain transfer agent containing a thiocarbonyl thio group and a free radical leaving group; and a radically polymerisable monomer, to form a polymer chain; and (2) contacting the polymer chain of step (1) with at least one of a polyvalent coupling agent, a polymerisation inhibitor, a grafting acylating agent, an amine and an oil of lubricating viscosity. The invention further provides compositions and uses for the polymer. 1. A composition comprising an oil of lubricating viscosity and a star polymer derived from at least two monomers comprising:(a) at least 50 wt % of a mixture of C12 to C15 alkyl substituted (meth)acrylate monomers; and(b) less than 50 wt % of an alkyl (meth)acrylate monomer containing 1 to 30 carbon atoms in the alkyl group, other than the C12 to C15 alkyl substituted (meth)acrylate monomer;(c) optionally containing less than 20 wt % styrene; and(d) optionally containing less than 10 wt % alkyl methacrylamide, wherein the star-polymer has about 7 to about 50 arms present on the star polymer, and wherein the star polymer is prepared by a reversible addition-fragmentation chain transfer controlled radical polymerisation process.2. The composition of claim 1 , wherein the star polymer is derived from at least two monomers consisting essentially of:(a) at least 50 wt % of a mixture of C12 to C15 alkyl substituted (meth)acrylate monomers; and(b) less than 50 wt % of an alkyl (meth)acrylate monomer containing 1 to 30 carbon atoms in the alkyl group, other than the C12 to C15 alkyl substituted (meth)acrylate monomer.3. The composition of claim 1 , wherein the star polymer is derived from at least two monomers comprising:(a) at least 50 wt % of a mixture of C12 to C15 alkyl substituted (meth)acrylate monomers; and(b) less than 50 wt % of an alkyl (meth)acrylate monomer containing 1 to 30 carbon atoms in the alkyl group, ...

Lubricant additive

A lubricant formulation. The lubricant formulation includes a polyol-based base lubricant, an ionic liquid, and an organic nanoparticle. The ionic liquid is selected from the group consisting of trihexyltetradecylphosphonium bis(2-ethylhexyl) phosphate, trihexyl(tetradecyl)phosphonium bis-2,4,4-(trimethylpentyl)phosphinate, and trihexyl(tetradecyl)phosphonium bis(trifluoromethylsulfonyl)imide, or a combination thereof. The organic nanoparticle has a median particle size less than about 200 nm. The organic nanoparticle forms about 0.01 to about 5% by weight of the lubricant formulation. The ionic liquid forms about 0.5 to about 10% by weight of the lubricant formulation.

LUBRICANT COMPOSITION BASED ON METAL NANOPARTICLES

The present disclosure relates to a lubricant composition including an anti-wear additive and metal nanoparticles. The lubricant composition according to the disclosure has, simultaneously, good stability as well as good, long-lasting friction properties. 1. A lubricant composition comprising a kinematic viscosity at 100° C. measured according to standard ASTM D445 ranging from 4 to 50 cSt and further comprising at least one base oil , at least one compound comprising a dithiophosphate group and metal nanoparticles at a content by weight ranging from 0.01 to 2% with respect to a total weight of the lubricant composition.2. The lubricant composition according to claim 1 , wherein the metal of which the metal nanoparticle is included is selected from a group comprising one of: tungsten claim 1 , molybdenum claim 1 , zirconium claim 1 , hafnium claim 1 , platinum claim 1 , rhenium claim 1 , titanium claim 1 , tantalum claim 1 , niobium claim 1 , cerium claim 1 , indium and tin.3. The lubricant composition according to claim 1 , wherein the metal nanoparticles are selected from a group comprising one of: MoS claim 1 , MoSe claim 1 , MoTe claim 1 , WS claim 1 , WSe claim 1 , ZrS claim 1 , ZrSe claim 1 , HfS claim 1 , HfSe claim 1 , PtS claim 1 , ReS claim 1 , ReSe claim 1 , TiS claim 1 , ZrS claim 1 , ZrSe claim 1 , HfS claim 1 , HfSe claim 1 , TiS claim 1 , TaS claim 1 , TaSe claim 1 , NbS claim 1 , NbSeand NbTe.4. The lubricant composition according to claim 1 , wherein the metal nanoparticles are concentric polyhedrons with a multilayer or sheet structure.5. The lubricant composition according to claim 1 , wherein the content by weight of the metal nanoparticles ranges from 0.05 to 2% with respect to the total weight of the lubricant composition.6. The lubricant composition according to claim 1 , wherein an average size of the metal nanoparticles ranges from 5 to 600 nm.7. The lubricant composition according to claim 1 , wherein the compound comprising a ...

LUBRICANT WITH HIGH PYROPHOSPHATE LEVEL

A lubricant composition comprising an oil of lubricating viscosity and 0.01 to 5 percent by weight of a substantially sulfur-free alkyl phosphate amine salt, where at least 30 mole percent of the phosphorus atoms are in an alkyl pyrophosphate salt structure, exhibits good antiwear performance. In the phosphate amine salt, at least 80 mole percent of the alkyl groups are typically secondary alkyl groups of 3 to 12 carbon atoms. 1. A lubricant composition comprising an oil of lubricating viscosity and about 0.01 to about 5 percent by weight of a substantially sulfur-free alkyl phosphate amine salt wherein at least about 30 mole percent of the phosphorus atoms are in an-alkyl pyrophosphate salt structure; wherein at least about 80 mole percent of the alkyl groups are secondary alkyl groups of about 3 to about 12 carbon atoms.4. The lubricant composition of wherein the alkyl phosphate amine salt is prepared or preparable by the reaction of phosphorus pentoxide with a secondary alcohol having about 4 to about 12 carbon atoms and reacting the product thereof with an amine.5. The lubricant composition of wherein the amine is a hydrocarbyl amine.6. The lubricant composition of wherein the amine comprises 2-ethylhexylamine.7. The lubricant composition of wherein the amine comprises an N-hydrocarbyl-substituted γ- or δ-amino(thio)ester.9. The lubricant composition of wherein claim 4 , in the reaction to prepare the alkyl phosphate amine salt claim 4 , the phosphorus pentoxide is reacted with about 2 to about 3.1 moles per mole of PO claim 4 , of the secondary alcohol at a temperature of about 30° C. to about 60° C.10. The lubricant composition of wherein claim 4 , in the reaction to prepare the alkyl phosphate amine salt claim 4 , the phosphorus pentoxide is reacted with about 2.2 to about 2.4 moles claim 4 , per mole of PO claim 4 , of the secondary alcohol at a temperature of about 50° C. to about 60° C.11. The lubricant composition of wherein the alkyl phosphate amine salt ...

LUBRICATING OIL COMPOSITION FOR GEAR OIL

Disclosed is a lubricating oil composition for gear oil, comprising a lubricating base oil having a kinematic viscosity at 40° C. of 140 to 350 mm/s, a copolymer of an α-olefin and an ester monomer having a polymerizable unsaturated bond, a performance additive containing phosphorus and sulfur, and a poly(meth)acrylate pour-point depressant. 1. A lubricating oil composition for gear oil , comprising:{'sup': '2', 'a lubricating base oil having a kinematic viscosity at 40° C. of 140 to 350 mm/s;'}a copolymer of an α-olefin and an ester monomer having a polymerizable unsaturated bond;a performance additive comprising phosphorus and sulfur; anda poly(meth)acrylate pour-point depressant.2. The lubricating oil composition for gear oil according to claim 1 , wherein the lubricating base oil comprises a first lubricating base oil component having a kinematic viscosity at 40° C. of 200 to 600 mm/s and a sulfur content of 0.3 to 0.9 mass % claim 1 , and a second lubricating base oil component having a kinematic viscosity at 40° C. of less than 200 mm/s; andthe content of the first lubricating base oil component is 30 to 80 mass %, and the content of the second lubricating base oil component is 70 to 20 mass %, based on the total amount of the base oil.3. The lubricating oil composition for gear oil according to claim 1 , wherein the content of the copolymer is 0.5 mass % or more based on the total amount of the composition.4. The lubricating oil composition for gear oil according to claim 1 , wherein the content of the performance additive satisfies requirements represented by the following formulas (1) and (2):{'br': None, 'i': 'C', 'sub': 'P', '≥0.05\u2003\u2003(1)'}{'br': None, 'i': C', '/C, 'sub': S', 'P, '7≤()≤20\u2003\u2003(2)'}{'sub': P', 'S', 'P', 'S, 'wherein Crepresents the content of phosphorus contained in the performance additive, Crepresents the content of sulfur contained in the performance additive, and Cand Ceach represent an amount (mass %) in terms of ...

METHACRYLIC COPOLYMER AND SOLUTION CONTAINING SAME

This invention provides A methacrylic copolymer (C) comprising 25 to 35 mass % of a methyl methacrylate unit (A), and 75 to 65 mass % of an alkyl methacrylate ester unit (B) containing an alkyl group having 10 to 36 carbon atoms, the methacrylic copolymer having (a) a weight average molecular weight of 10,000 to 500,000, (b) a molecular weight distribution (Mw/Mn) of 1.01 to 1.60, (c) a triad syndiotacticity (rr) of 65% or more, and (d) a solubility of 5.0 mass % or more at 0° C. in at least one lubricant base oil (D) selected from the group consisting of API groups III, III+, and IV. 1: A methacrylic copolymer (C) comprising:25 to 35 mass % of a methyl methacrylate unit (A); and75 to 65 mass % of an alkyl methacrylate ester unit (B) containing an alkyl group having 10 to 36 carbon atoms,the methacrylic copolymer having(a) a weight average molecular weight of 10,000 to 500,000,(b) a molecular weight distribution (Mw/Mn) of 1.01 to 1.60,(c) a triad syndiotacticity (rr) of 65% or more, and(d) a solubility of 5.0 mass % or more at 0° C. in at least one lubricant base oil (D) selected from the group consisting of API groups III, III+, and IV.2: The methacrylic copolymer according to claim 1 , wherein the methyl methacrylate unit (A) is present in an amount of 30 to 35 mass %.3: The methacrylic copolymer according to claim 1 , which has a weight average molecular weight of 20 claim 1 ,000 to 450 claim 1 ,000.4: The methacrylic copolymer according to claim 1 , comprising a combination of an alkyl methacrylate ester unit (B1) containing an alkyl group having 14 to 30 carbon atoms and an alkyl methacrylate ester unit (B2) containing an alkyl group having 10 to 13 carbon atoms claim 1 , as the alkyl methacrylate ester unit (B) containing an alkyl group having 10 to 36 carbon atoms claim 1 , and having a mass ratio of the alkyl methacrylate ester unit (B1)/the alkyl methacrylate ester unit (B2) of 10/90 to 90/10.5: The methacrylic copolymer according to claim 1 , which has a ...

Functionalised Copolymers and Lubricating Compositions Thereof

The present invention relates to a lubricating composition comprising an oil of lubricating viscosity and a (thio)phosphate salt of an amine-functionalized esterified copolymer, wherein the esterified copolymer comprises units derived from monomers: (i) an α-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof, that are esterified with an alcohol, or mixtures thereof, and wherein at least a portion of carboxylic acid groups not esterified react with an amine. The invention further provides for a lubricating composition containing said copolymer. The invention further provides a method and use of lubricating composition in a mechanical device. 1. A lubricating composition comprising an oil of lubricating viscosity and a (thio)phosphate salt of an amine-functionalized esterified copolymer , wherein the esterified copolymer comprises units derived from monomers:(i) an α-olefin, wherein the α-olefin comprises 1-decene, 1-undecene, 1-dodecene, 1-tridecene, 1-tetradecene, 1-pentadecene, 1-hexadecene, 1-heptadecene, 1-octadecene, or mixtures thereof, and(ii) an ethylenically unsaturated carboxylic acid or derivative thereof, esterified with at least one alcohol, and wherein at least a portion of carboxylic acid groups are reacted with at least one amine.2. The lubricating composition of claim 1 , wherein the α-olefin further comprises a linear or branched olefin claim 1 , or mixtures thereof.3. (canceled)4. The lubricating composition of claim 3 , wherein the α-olefin is 1-dodecene.5. The lubricating composition of claim 1 , wherein the ethylenically unsaturated carboxylic acid or derivative thereof includes itaconic anhydride claim 1 , maleic anhydride claim 1 , methyl maleic anhydride claim 1 , ethyl maleic anhydride claim 1 , dimethyl maleic anhydride or mixtures thereof.6. The lubricating composition of claim 1 , wherein the ethylenically unsaturated carboxylic acid or derivative thereof is maleic anhydride or a derivative thereof.7. The ...

High Viscosity Index Comb Copolymer Viscosity Modifiers and Methods of Modifying Lubricant Viscosity Using Same

A comb copolymer viscosity modifier may be made by polymerization comprising at least, or consisting essentially of, the following monomers: (a) (optionally from 7.0 wt % to 18 wt %, by repeat units, of) a hydrogenated polybutadiene-based (alk)acrylate ester macromonomer; (b) (optionally from 33 wt % to 64 wt % or from 38 wt % to 58 wt %, by repeat units, of) a C-Calkyl (alk)acrylate ester monomer; (c) (optionally up to 35.0 wt %, by repeat units, of) a C-Calkyl (alk)acrylate ester monomer; and (d) (optionally from 3.0 wt % to 27 wt %, by repeat units, of) a C-Caryl, aralkyl, or alkaryl (alk)acrylate ester monomer, such that a sum of repeat units due to (c) plus (d) constitute at least 21.0 wt % of repeat units of the comb copolymer viscosity modifier. Lubricant compositions comprising the comb copolymer viscosity modifier, as well as uses thereof and methods for modifying viscosity and dispersancy, are also contemplated. 1. A lubricant composition comprising:a lubricating oil basestock;at least one lubricant additive comprising an antioxidant, a corrosion inhibitor, an anti-wear additive, a friction modifier, a dispersant, a detergent, a defoaming agent, an extreme pressure additive, a pour point depressant, a seal-swelling control agent, or a combination thereof; anda comb copolymer viscosity modifier made by polymerization comprising at least the following monomers:(a) a hydrogenated polybutadiene-based (alk)acrylate ester macromonomer;{'sub': 3', '8, '(b) a C-Calkyl (alk)acrylate ester monomer;'}{'sub': 12', '24, '(c) a C-Calkyl (alk)acrylate ester monomer; and'}{'sub': 6', '20, '(d) a C-Caryl, aralkyl, or alkaryl (alk)acrylate ester monomer,'}{'sub': 12', '24', '6', '20, 'wherein a sum of repeat units based on the C-Calkyl (alk)acrylate ester monomer plus the C-Caryl, aralkyl, or alkaryl (alk)acrylate ester monomer collectively comprise at least 21.0 wt % of repeat units of the comb copolymer viscosity modifier.'}2. The lubricant composition of claim 1 , ...

SILICONE FUNCTIONLIZED VISCOSITY INDEX IMPROVER

A multi-functional olefin copolymer viscosity index improver and a lubricating oil composition including such lubricant additive that provides improved viscometric properties and helps reduce low speed pre-ignition events at the same time. In one approach, the multi-functional olefin copolymer viscosity index improver is silicone functionalized and includes an acylated olefin copolymer with aminosilane or aminosiloxone pendant or side groups. 1. A multi-functional olefin copolymer viscosity index improver comprising an acylated olefin copolymer with aminosilane pendant groups , the acylated olefin copolymer including an olefin copolymer backbone with grafted acylating moieties thereon linking the aminosilane pendant groups to the olefin copolymer backbone.2. The multi-functional olefin copolymer viscosity index improver of claim 1 , wherein the aminosilane pendant groups are derived from aminoalkyl silanes claim 1 , aminoalkyl siloxanes claim 1 , aminoalkyl polysiloxanes claim 1 , aminoaryl silanes claim 1 , aminoaryl siloxanes claim 1 , aminoarl oxy silanes claim 1 , and combinations thereof.3. The multi-functional olefin copolymer viscosity index improver of claim 1 , wherein the multi-functional olefin copolymer viscosity index improver is the reaction product of the acylated olefin copolymer and the aminosilane selected from aminoalkyl silanes claim 1 , aminoalkyl silixones claim 1 , aminoalkyl polysiloxanes claim 1 , aminoaryl silanes claim 1 , aminoaryl siloxanes claim 1 , aminoarl oxy silanes claim 1 , and combinations thereof.4. The multi-functional olefin copolymer viscosity index improver of claim 3 , wherein the reaction product is further reacted with an amine selected from alkylamines claim 3 , alkylpolyamines claim 3 , or combinations thereof.5. The multi-functional olefin copolymer viscosity index improver of claim 1 , wherein the grafted acylating moieties are grafted dicarboxylic moieties.6. The multi-functional olefin copolymer viscosity index ...

DRIVELINE FLUIDS COMPRISING API GROUP II BASE OIL

Described herein is a process, comprising: a) selecting an API Group II base stock with selected viscosity index and pour point; b) blending a base oil with the base stock, and c) adding to the base oil: i) a liquid ethylene propylene copolymer viscosity modifier that reduces a traction coefficient, and ii) an additive package, to make a driveline fluid that has a defined viscosity index and excellent shear stability. Also provided is a driveline fluid composition having the high viscosity index and excellent shear stability, comprising: a) a base oil comprising from 50 wt % to 100 wt % API Group II base stock; b) a liquid ethylene propylene copolymer viscosity modifier that reduces a traction coefficient; and c) an additive package. Further provided is a method for lubricating an axle or manual transmission by supplying the driveline fluid composition. 1. A process for blending a driveline fluid , comprising:a. selecting at least one API Group II base stock having a viscosity index from 90 to 119 and a pour point from −19° C. to 0° C.;b. blending a base oil comprising 50 to 100 wt % of the at least one API Group II base stock; and i. 5 to 30 wt % of a viscosity modifier that is a liquid ethylene propylene copolymer, wherein the viscosity modifier reduces a traction coefficient of the driveline fluid; and', 'ii. an additive package designed for the driveline fluid, to make the driveline fluid; wherein the driveline fluid has a driveline fluid viscosity index of 140 to 180 and has a percentage loss of kinematic viscosity at 100° C. in a 20 hour KRL shear stability test of less than 5.5%., 'c. adding to the base oil2. The process of claim 1 , wherein the traction coefficient of the driveline fluid is from 0.019 to 0.028 when measured in a MTM traction measurement system at 120° C. claim 1 , with a 30% slide to roll ratio claim 1 , and at a load of 72 Newton.3. The process of claim 2 , wherein the traction coefficient of the driveline fluid is 0.026 or less.4. The ...

LUBRICANT COMPOSITIONS COMPRISING OLEFIN COPOLYMER DISPERSANTS IN COMBINATION WITH ADDITIVES

Lubricating oil compositions including olefin copolymer dispersants comprising olefin copolymers derived from ethylene and one or more C-Calpha olefins in combination with various additives and related methods are generally described herein. The compositions may include one or more phosphorus-containing compound(s), detergents, friction modifiers, extreme pressure agents, and mixtures thereof. 1. A lubricant composition comprisinga base oil of lubricating viscosity;an olefin copolymer dispersant;one or more phosphorus-containing compound(s) in an amount to provide up to 5000 ppm phosphorus to the lubricant composition;{'sub': 3', '10', 'C2,Experimental, 'sup': 1', '13', '1', '13, 'claim-text': {'br': None, 'i': n', ' Подробнее

Transmission Lubricant Composition

A lubricant composition comprising a) a synthetic poly-alpha-olefin base fluid; b) an organomolybdenum friction modifier; c) an alkylphosphorothiolate and a hydrocarbylamine anti-wear combination; and d) a dihydrocarbyl dithiophosphate extreme pressure additive and optionally one or more of e) a copper corrosion inhibitor; f) an anti-foam agent; g) a solubilizing agent; h) polymeric viscosity index improver; and i) an oligomeric viscosity modifier is highly suitable for use in the synchronizer of a transmission. 1. A lubricant composition comprisinga) a synthetic poly-alpha-olefin base fluid;b) an organomolybdenum friction modifier;c) an alkylphosphorothiolate and a hydrocarbylamine anti-wear combination; andd) a dihydrocarbyl dithiophosphate extreme pressure additive.2. The lubricant composition according to comprising a synthetic poly-alpha-olefin base fluid selected from the group consisting of about Cto about Cpoly-alpha-olefins.3. (canceled)4. The lubricant composition according to comprising a friction modifier selected from the group consisting of organomolybdenum dithiocarbamates claim 1 , organomolybdenum dithiophosphates claim 1 , molybdenum carboxylate salts claim 1 , molybdenum-amine complexes claim 1 , molybdenum amine/alcohol/amide complexes claim 1 , molybdenum cluster compounds and molybdenum disulfide.5. (canceled)7. The lubricant composition according to comprising a hydrocarbylamine selected from the group consisting of alkylene diamines claim 1 , primary hydrocarbylamines claim 1 , and a combination thereof.8. (canceled)9. The lubricant composition according to claim 1 , wherein the wt/wt ratio of the alkylphosphorothiolate and hydrocarbylamine is from about 1/9 to about 9/1.11. (canceled)12. The lubricant composition according to having a kinematic viscosity of from about 9.0 mm/s to about 15.0 mm/s at 100° C. claim 1 , determined according to ASTM D445.13. The lubricant composition according to wherein the synthetic base fluid is from about 62 ...

MANUAL TRANSMISSION OIL COMPOSITION HAVING ENHANCED FRICTIONAL PROPERTIES AND ENABLING IMPROVED FUEL EFFICIENCY

A manual transmission oil composition includes: polyisobutenyl succinimide serving as a detergent-dispersant; and comb polymethacrylate (comb PMA), which has at least one of polar and nonpolar branches connected to a main chain thereof, and serves as a viscosity modifier. Polyisobutenyl succinimide is contained in an amount of 1 wt % to 5 wt % based on a total weight of the manual transmission oil composition, W and comb PMA is contained in an amount of 4 wt % to 12 wt % based on the total weight of the manual transmission oil composition. 1. A manual transmission oil composition , comprising:polyisobutenyl succinimide serving as a detergent-dispersant; andcomb polymethacrylate (comb PMA), which has at least one of polar and nonpolar branches connected to a main chain thereof, and serves as a viscosity modifier.2. The manual transmission oil composition of claim 1 , wherein polyisobutenyl succinimide is contained in an amount of 1 wt % to 5 wt % based on a total weight of the manual transmission oil composition claim 1 , andcomb PMA is contained in an amount of 4 wt % to 12 wt % based on the total weight of the manual transmission oil composition.3. The manual transmission oil composition of claim 1 , wherein a weight ratio of polyisobutenyl succinimide : comb PMA is 1 to 5 : 4 to 12.4. The manual transmission oil composition of claim 1 , wherein comb PMA includes olefin amide comb polymethacrylate.5. The manual transmission oil composition of claim 1 , further comprising at least one additive selected from the group consisting of an antiwear additive claim 1 , a friction modifier claim 1 , an extreme pressure additive claim 1 , and an antioxidant.6. The manual transmission oil composition of claim 5 , wherein the antiwear additive is zinc alkyl dithiophosphate claim 5 , and the zinc alkyl dithiophosphate is contained in an amount of 3 wt % to 5 wt % based on a total weight of the manual transmission oil composition.7. The manual transmission oil composition of ...

Viscosity Modifiers For Improved Fluoroelastomer Seal Performance

A lubricant composition of (a) an oil of lubricating viscosity; (b) a poly(meth)acrylate ester polymer comprising 0.5 to 5 weight percent of amine nitrogen-containing dispersant monomer units and (c) an esterified copolymer with a backbone comprising units derived from (i) an α-olefin monomer of at least about 6 carbon atoms, (ii) an ethylenically unsaturated carboxylic acid or derivative thereof, further containing nitrogen functionality in groups pendant from the copolymer backbone, provides a good combination of seal performance and oxidation resistance. 2. The lubricant composition of wherein the amount of the poly(meth)acrylate polymer (b) is about 2 to about 30 percent by weight and the amount of the esterified copolymer (c) is about 1 to about 45 percent by weight.3. The lubricant composition of wherein the amount of the esterified copolymer (c) is about 10 to about 45 percent by weight.4. The lubricant composition of wherein the total amount of the poly(meth)acrylate ester polymer (b) plus the esterified copolymer (c) is about 3 to about 65 percent by weight.5. The lubricant composition of wherein the total amount of the poly(meth)acrylate ester polymer (b) plus the esterified copolymer (c) is about 15 to 60 or about 25 to about 60 percent by weight.6. The lubricant composition of wherein the poly(meth)acrylate ester polymer (b) further comprises monomer units of one or more C1 to C5 alkyl (meth)acrylates.7. The lubricant composition of wherein the poly(meth)acrylate ester polymer (b) comprises monomer units of C6 to C10 alkyl (meth)acrylates and C12 to C18 alkyl (meth)acrylates.8. The lubricant composition of wherein the poly(meth)acrylate ester polymer (b) comprises monomer units of C12 to C15 alkyl(meth)acrylates.9. The lubricant composition of wherein the poly(meth)acrylate ester copolymer (b) comprises monomer units of dimethylaminopropyl methacrylamide or dimethylaminoethyl methacrylate.10. The lubricant composition of wherein the poly(meth)acrylate ...

Lubricant Containing Thiadiazole Derivatives

The present disclosure describes a lubricating composition including 2. The lubricating composition according to claim 1 , wherein the one or more monohydrocarbyl-substituted dimercaptothiadiazole derivatives (s) according to Formula (I) are present in a total of 0.08 to 0.15 wt. % based on the total lubricating composition and the total lubricating composition has a sulfur content of up to 940 Rpm (wt.).3. The lubricating composition according to claim 1 , wherein the one or more monohydrocarbyl-substituted dimercaptothiadiazole derivative(s) comprise 5-(methylthio)-3 claim 1 ,4-thiadiazole-2(3H)-thione.4. The lubricating composition according to claim 1 , wherein the monohydrocarbyl-substituted dimercaptothioadiazole derivative(s) contributes 200 to 1 claim 1 ,500 ppm sulfur to the lubricating composition.5. The lubricating composition according to claim 1 , wherein the lubricating composition further contains a dispersant.6. The lubricating composition according to wherein the dispersant is present in an amount of 0.001 to 10 wt. % claim 5 , based on the total lubricating composition claim 5 , in the lubricating composition.7. The lubricating composition according to wherein the dispersant is selected from the group consisting of ashless dispersants claim 5 , borated ashless dispersants claim 5 , ash-containing dispersants claim 5 , and dispersant viscosity index improvers claim 5 , and combinations thereof.8. The lubricating composition according to claim 1 , wherein the total lubricating composition has a sulfur content of less than 940 ppm (wt.).9. The lubricating composition according to claim 1 , further comprising one or more additives selected from the group consisting of extreme-pressure agents claim 1 , anti-wear agents claim 1 , friction modifiers claim 1 , metal deactivators claim 1 , detergents claim 1 , viscosity index improvers claim 1 , antioxidants claim 1 , corrosion inhibitors claim 1 , foam inhibitors claim 1 , demulsifiers claim 1 , pour point ...

Azole Derivatives as Lubricating Additives

Lubricating compositions comprising an azole-acrylic adduct formed by contacting an azole compound with an acrylic. The adduct formed has at least one N-alkyl group comprising at least one acyl. The lubricating composition also comprises a thiadiazole. Methods of lubricating a component of a farm tractor, off-highway vehicle or drivetrain comprising contacting the component with the lubricating composition comprising an azole-acrylic adduct formed by mixing an azole compound with an acrylic. Methods of reducing corrosion in a component. The use of an azole-acrylic adduct in a lubricating composition to reduce corrosion in a component. 1. A lubricating composition comprising:a. an oil of a lubricating viscosity;b. a thiadiazole; and i. said adduct is formed by contacting an azole compound with an acrylic; and', 'ii. said adduct has at least one nitrogen-alkyl group comprising at least one acyl., 'c. an azole-acrylic adduct wherein2. The lubricating composition of claim 1 , wherein said acrylic comprises at least one (meth)acrylate claim 1 , (meth)acrylic acid claim 1 , (meth)acrylamide claim 1 , or combinations thereof.3. The lubricating composition of claim 1 , wherein said acrylic comprises at least one acrylate claim 1 , acrylic acid claim 1 , acrylamide claim 1 , methacrylate claim 1 , methacrylic acid claim 1 , methacrylamide claim 1 , or combinations thereof.5. The lubricating composition of claim 4 , wherein R is a hydrogen or a methyl group.6. The lubricating composition of claim 2 , wherein said (meth)acrylate comprises at least one acrylate claim 2 , methacrylate claim 2 , or combinations thereof.7. The lubricating composition of claim 1 , wherein said acrylic comprises at least one of octadecyl acrylate claim 1 , hexadecyl acrylate claim 1 , tridecyl acrylate claim 1 , dodecyl acrylate claim 1 , decyl acrylate claim 1 , 2-propylheptyl acrylate claim 1 , 2-ethylhexyl acrylate claim 1 , octyl acrylate claim 1 , hexyl acrylate claim 1 , butyl acrylate claim 1 ...

ANTI-CORROSION ADDITIVES

A lubricant composition comprising an oil of lubricating viscosity and an N-hydrocarbyl-substituted aminoester, wherein the N-hydrocarbyl substituent comprises a hydrocarbyl group of at least 3 carbons atoms, with a branch at the 1 or 2 position of the hydrocarbyl chain, provides good iron and copper corrosion performance in driveline or gear applications. 1. A lubricant composition comprising:(a) an oil of lubricating viscosity;(b) an N-hydrocarbyl-substituted aminoester having an amino group separated from an ester group by a chain of 3 or 4 carbon atoms, wherein the N-hydrocarbyl substituent comprises a hydrocarbyl group of at least 3 carbons atoms, with a branch at the 1 or 2 position of the hydrocarbyl group, provided that if the ester is a methyl ester then the hydrocarbyl group has a branch at the 1 position, and further provided that the hydrocarbyl group is not a tertiary group; and(c) about 0.05 to about 8 percent by weight of a substituted thiadiazole or about 0.04 to about 4 percent by weight of an amine (thio)phosphate.2. The lubricant composition of wherein the amino group is separated from the ester group by a chain of 3 carbon atoms.3. The lubricant composition of wherein the amino group is separated from the ester group by a chain of 4 carbon atoms.4. The lubricant composition of wherein the N-hydrocarbyl-substituted aminoester comprises a 2-((hydrocarbyl)aminomethyl) succinic acid dihydrocarbyl ester.5. The lubricant composition of wherein the ester functionality comprises an alcohol-derived group which is a hydrocarbyl group having 1 to about 30 carbon atoms.6. The lubricant composition of wherein the ester functionality comprises an alcohol-derived group which is an ether-containing group.7. The lubricant composition of wherein the aminoester comprises a second ester functionality claim 1 , and wherein the two alcohol-derived groups of the ester functionalities are alkyl moieties which are the same or different and have 1 to about 18 carbon atoms ...

HYDROGENATED POLYBUTADIENES USEFUL AS LUBRICANT ADDITIVES

The invention relates to low molecular weight hydrogenated polybutadienes and to a method for the preparation of these polymers. The invention is also directed to lubricant compositions comprising these polymers and uses thereof. 1: A hydrogenated polybutadiene , comprising 25 to 45% by weight of monomer units of 1 ,4-butadiene and 55 to 75% by weight of monomer units of 1 ,2-butadiene , based on the total weight of the hydrogenated polybutadiene , wherein the hydrogenated polybutadiene;(i) has a weight-average molecular weight comprised in the range between 2,000 g/mol and 10,000 g/mol; and(i) has a hydrogenation degree of more than 99%.2: The hydrogenated polybutadiene according to claim 1 , wherein the hydrogenated polybutadiene comprises 30 to 45% by weight of monomer units of 1 claim 1 ,4-butadiene and 55 to 70% by weight of monomer units of 1 claim 1 ,2-butadiene claim 1 , based on the total weight of the hydrogenated polybutadiene.3: The hydrogenated polybutadiene according to claim 2 , wherein the hydrogenated polybutadiene comprises 30 to 40% by weight of monomer units of 1 claim 2 ,4-butadiene and 60 to 70% by weight of monomer units of 1 claim 2 ,2-butadiene claim 2 , based on the total weight of the hydrogenated polybutadiene.4: The hydrogenated polybutadiene according to claim 1 , wherein the hydrogenated polybutadiene has a polydispersity index PDI ranging from 1.0 to 1.5.5: The hydrogenated polybutadiene according to claim 4 , wherein the hydrogenated polybutadiene has a polydispersity index PDI ranging from 1.0 to 1.2.6: The hydrogenated polybutadiene according to claim 1 , wherein the hydrogenated polybutadiene has a weight-average molecular weight ranging from 3 claim 1 ,000 g/mol to 9 claim 1 ,000 g/mol.7: The hydrogenated polybutadiene according to claim 6 , wherein the hydrogenated polybutadiene has a weight-average molecular weight ranging from 4 claim 6 ,000 g/mol to 8 claim 6 ,000 g/mol.8: A process for preparing the hydrogenated ...

VISCOSITY INDEX IMPROVER, LUBRICANT COMPOSITION, AND METHOD FOR MANUFACTURING LUBRICANT COMPOSITION

The present invention provides a viscosity index improver having an excellent viscosity index improving effect, a lubricant composition having excellent low-temperature viscosity in which the viscosity reduction due to long-term use is small, and a method for producing the lubricant composition. A viscosity index improver of the present invention contains a copolymer (A) containing, as monomer units, an alkyl (meth)acrylate (a) whose alkyl group contains 5 or more carbon atoms, and an alkyl (meth)acrylate (b) whose alkyl group contains 1 to 4 carbon atoms, wherein the alkyl group of the alkyl (meth)acrylate (a) whose alkyl group contains 5 or more carbon atoms has a molar-average carbon number (Q) of 29 or more, and the alkyl (meth)acrylate (b) whose alkyl group contains 1 to 4 carbon atoms is contained as a monomer unit in an amount of 38 to 75% by weight based on the weight of the copolymer (A). 1. A viscosity index improver comprising:a copolymer (A) containing, as monomer units, an alkyl (meth)acrylate (a) whose alkyl group contains 5 or more carbon atoms, and an alkyl (meth)acrylate (b) whose alkyl group contains 1 to 4 carbon atoms,wherein the alkyl group of the alkyl (meth)acrylate (a) whose alkyl group contains 5 or more carbon atoms has a molar-average carbon number (Q) of 29 or more, andthe alkyl (meth)acrylate (b) whose alkyl group contains 1 to 4 carbon atoms is contained as a monomer unit in an amount of 38 to 75% by weight based on the weight of the copolymer (A).2. The viscosity index improver according to claim 1 ,{'sup': 3', '1/2, 'wherein the copolymer (A) has a solubility parameter of 9.0 to 9.5 (cal/cm).'}4. The viscosity index improver according to claim 1 ,wherein the copolymer (A) has a degree of solubility parameter variance of 0.35 to 1.00.5. The viscosity index improver according to claim 1 ,wherein the copolymer (A) has a weight average molecular weight of 5,000 to 200,000.6. The viscosity index improver according to claim 1 ,wherein the ...

ALKYL PHOSPHATE AMINE SALTS FOR USE IN LUBRICANTS

A lubricant composition comprising an oil of lubricating viscosity and about 0.01 to about 5 percent by weight of a (thio)phosphoric acid salt (“phos-amine salt”) of at least one hydrocarbyl amine. The hydrocarbyl amine may be a hindered hydro-carbyl amine, an aromatic hydrocarbyl amine, or a combination thereof. 1. A lubricant composition comprising an oil of lubricating viscosity and about 0.01 to about 5 percent by weight of a (thio)phosphoric acid salt (“phos-amine salt”) of at least one hydrocarbyl amine that is a tertiary alkyl amine with at least two branched alkyl groups.2. The lubricant composition of claim 1 , wherein said hydrocarbyl amine is an aromatic hydrocarbyl amine.3. The lubricant composition of claim 1 , wherein said hydrocarbyl amine is a hindered hydrocarbyl amine.4. The lubricant composition of claim 3 , wherein said hindered hydrocarbyl amine has at least one aromatic group.5. The lubricant composition of claim 1 , wherein said hydrocarbyl amine comprises at least one C-Chydrocarbyl group.6. The lubricant composition of claim 1 , wherein said hydrocarbyl amine is a hindered amine represented by formula (I){'br': None, 'sup': 1', '3', '2, 'R—NR—R\u2003\u2003(I)'}{'sup': 1', '2', '3, 'sub': 1', '30, 'wherein R, R, and Rare independently a C-Chydrocarbyl group.'}7. (canceled)8. The lubricant composition of claim 1 , wherein the at least two branched alkyl groups are independently branched at the α or the β position.9. The lubricant composition of claim 8 , wherein the at least two branched alkyl groups are both branched at the β position.10. The lubricant composition of claim 1 , wherein the (thio)phosphoric acid comprises a mono- or di-hydrocarbyl (thio)phosphoric acid (typically alkyl (thio)phosphoric acid) claim 1 , or mixtures thereof.11. The lubricant composition of claim 1 , wherein the (thio)phosphoric acid is prepared by reacting a phosphating agent with a monohydric alcohol and an alkylene polyol.12. The lubricant composition of claim 1 ...

Lubricant Composition

A lubricant composition includes a base oil present in an amount of greater than 70 parts by weight per 100 parts by weight of the lubricant composition and an antioxidant. The antioxidant has the structure: wherein each X is independently C-A or N, so long as at least one X is N but no more than two of X are N. Moreover, A is H, cyano or an electron donating group that: (1) has an atom having at least one lone pair of electrons that is bonded directly to the aromatic ring; or (2) is an aryl group or alkyl group. Further, each R is independently H, an alkyl group, or aryl group and each R′ is independently an alkyl group or an aryl group.

Lubricant Composition

A lubricant composition includes a base oil present in an amount of greater than 70 parts by weight per 100 parts by weight of the lubricant composition and an antioxidant. The antioxidant has the structure: wherein each X is independently CH or N, so long as at least one X is N. A is an electron donating group that (1) has an atom having at least one lone pair of electrons that is bonded directly to the aromatic ring or (2) is an aryl or alkyl group. Z is chosen from a hydrogen atom and an electron donating group that has an atom having at least one lone pair of electrons that is bonded directly to the aromatic ring or is an aryl or alkyl group. 2. The lubricant composition of wherein each of A and Z is independently an electron donating group that has an oxygen atom or nitrogen atom that is bonded directly to the aromatic ring.3. The lubricant composition of wherein each of A and Z is independently —NR claim 1 , —NH claim 1 , —OH claim 1 , —OR claim 1 , —NHCOR claim 1 , or —COOR claim 1 , wherein R is an alkyl group having 1 to 10 carbon atoms.4. The lubricant composition of wherein at least one of A and Z is —NR claim 1 , wherein R is an alkyl group having 1 to 10 carbon atoms.5. The lubricant composition of wherein at least one of A and Z is —NH.6. The lubricant composition of wherein at least one of A and Z is —OH.7. The lubricant composition of wherein at least one of A and Z is —OR claim 1 , wherein R is an alkyl group having 1 to 10 carbon atoms.8. The lubricant composition of wherein at least one of A and Z is —NHCOR claim 1 , wherein R is an alkyl group having 1 to 10 carbon atoms.9. The lubricant composition of wherein at least one of A and Z is —COOR claim 1 , wherein R is an alkyl group having 1 to 10 carbon atoms.10. The lubricant composition of wherein at least one of A and Z is an alkyl group having 1 to 20 carbon atoms.11. The lubricant composition of wherein at least one of A and Z is an aryl group.12. The lubricant composition of wherein each X is ...

NITROGEN-FREE PHOSPHORUS COMPOUNDS AND LUBRICANTS CONTAINING THE SAME

A composition obtained by reacting an O,O′-dialkyldithiophosphoric acid with a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with a dialkylphosphite provides good antiwear protection. 3. The composition of wherein Rand Rare 2-ethylhexyl groups or 4-methyl-2-pentyl groups or mixtures thereof.4. A composition obtained or obtainable by reacting(a) an O,O′-dialkyldithiophosphoric acid with(b) a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with(c) a dialkylphosphite.5. The composition of obtained or obtainable by reacting(a) an O,O-dialkyldithiophosphoric acid with(b) a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with(c) a dialkylphosphite.6. The composition of wherein the components (a) claim 4 , (b) claim 4 , and (c) are reacted in a molar ratio of about 2:2:1.7. The composition of wherein the alkyl groups of (a) the O claim 4 ,O-dialkyldithiophosphoric acid each are independently Cto Calkyl groups.8. The composition of wherein the alkyl groups of (a) are each independently Cor Calkyl groups.9. The composition of wherein the alkyl groups of (a) are 2-ethylhexyl groups or 4-methyl-2-pentyl groups or mixtures thereof.10. The composition of wherein (b) the hydroxyalkyl acrylate or hydroxyalkyl methacrylate comprises a hydroxyalkyl acrylate.11. The composition of wherein the hydroxyalkyl group of (b) is a 2-hydroxyethyl group.12. The composition of wherein the dialkylphosphite comprises alkyl groups of claim 4 , independently claim 4 , 1 to about 12 carbon atoms.13. The composition of wherein the dialkylphosphite comprises dimethylphosphite.14. The composition of wherein the O claim 4 ,O-dialkyldithiophosphoric acid of (a) is added to the hydroxyalkyl acrylate or -methacrylate of (b) and reacted at about 40 to about 80° C. claim 4 , and the dialkylphosphite of (c) is added thereto claim 4 , optionally in the presence of base claim 4 , with heating ...

Lubricant Composition

A lubricant composition includes a polyalkylene glycol base oil component in an amount of at least about 60 parts by weight based on 100 parts by weight of the lubricant composition. The lubricant composition has a kinematic viscosity at 100° C. of from about 4 to about 50 cSt and a kinematic viscosity at 40° C. of from about 20 to about 700 cSt, each measured in accordance with ASTM D445. 1. A lubricant composition comprising a polyalkylene glycol base oil component in an amount of at least about 60 parts by weight based on 100 parts by weight of said lubricant composition , wherein said lubricant composition has a kinematic viscosity at 100° C. of from about 4 to about 50 cSt and a kinematic viscosity at 40° C. of from about 20 to about 700 cSt , each measured in accordance with ASTM D445.2. The lubricant composition as set forth in wherein said polyalkylene glycol base oil component is water-soluble.3. The lubricant composition as set forth in wherein said polyalkylene glycol base oil component comprises;a first polyalkylene glycol having a kinematic viscosity at 100° C. of from about 2 to about 70 cSt and a kinematic viscosity at 40° C. of from about 5 to about 200 cSt, each measured in accordance with ASTM D445, anda second polyalkylene glycol having a kinematic viscosity at 100° C. of from about 50 to about 220 cSt and a kinematic viscosity at 40° C. of from about 150 to about 1,300 cSt, each measured in accordance with ASTM D445,wherein said second polyalkylene glycol has a kinematic viscosity that is greater than the kinematic viscosity of said first polyalkylene glycol at 100° C. and 40° C.4. The lubricant composition as set forth in wherein;said first polyalkylene glycol has a kinematic viscosity at 100° C. of from about 2 to about 30 cSt and a kinematic viscosity at 40° C. of from about 10 to about 50 cSt, each measured in accordance with ASTM D445, andsaid second polyalkylene glycol has a kinematic viscosity at 100° C. of from about 120 to about 200 cSt ...

LUBRICATING COMPOSITION CONTAINING AN ANTIWEAR AGENT

The invention provides a lubricating composition containing an antiwear agent and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in an internal combustion engine, or a driveline device. 123-. (canceled)24. A lubricating composition comprising an oil of lubricating viscosity and 0.01 wt % to 2 wt % a non-metallic cationic pnictogen salt of a hydroxy-carboxylic acid , or mixtures thereof ,wherein the non-metallic cationic pnictogen salt of a hydroxy-carboxylic acid is a quaternary ammonium salt of a hydroxy-carboxylic acid,wherein the quaternary ammonium salt is derived from an amine comprising alkyl groups having 3 to 10 carbon atoms, andwherein the hydroxy-carboxylic acid is selected from the group consisting of glycolic acid, malic acid, tartaric acid and mixtures thereof.25. The lubricating composition of claim 24 , wherein lubricating composition contains 0.05 wt % to 0.1 wt % of the non-metallic cationic pnictogen salt of a hydroxy-carboxylic acid claim 24 , or mixtures thereof.26. The lubricating composition of claim 24 , wherein lubricating composition contains 0.03 wt % to 0.5 wt % of the non-metallic cationic pnictogen salt of a hydroxy-carboxylic acid claim 24 , or mixtures thereof.27. The lubricating composition of further comprising a zinc dialkyldithiophosphate.28. The lubricating composition of further comprising an overbased detergent claim 24 , wherein the overbased detergent is typically selected from the group consisting of phenates claim 24 , sulphur containing phenates claim 24 , sulphonates claim 24 , salixarates claim 24 , salicylates claim 24 , and mixtures thereof.29. The lubricating composition of claim 24 , wherein the lubricating composition is characterised as having (i) a sulphur content of 0.5 wt % or less claim 24 , (ii) a phosphorus content of 0.1 wt % or less claim 24 , and (iii) a sulphated ash content of 1.5 wt % or less.30. A method of lubricating an internal combustion ...

Lubricant Composition Containing an Antiwear Agent

The invention provides a lubricant composition comprising an oil of lubricating viscosity and a (thio)phosphoric acid salt of an N-hydrocarbyl-substituted gamma- (γ-) or delta- (δ-)amino(thio)ester. The invention further relates to a method of lubricating a mechanical device with the lubricant composition.

LUBRICANT OIL COMPOSITIONS FOR AUTOMOTIVE GEARS

A lubricant oil composition for automotive gears includes a lubricant base oil including a mineral oil having a kinematic viscosity at 100° C. of 2.0 to 6.5 mm/s, a viscosity index of not less than 105 and a pour point of not more than −10° C., and/or a synthetic oil having a kinematic viscosity at 100° C. of 1.0 to 6.5 mm/s, a viscosity index of not less than 120 and a pour point of not more than −30° C.; and an ethylene/α-olefin copolymer having an ethylene content of 55 to 85 mol %, a kinematic viscosity at 100° C. of 10 to 200 mm/s, a molecular weight distribution of not more than 2.2, and a melting point in the range of −30° C. to −60° C. The lubricant oil composition for automotive gears has a kinematic viscosity at 100° C. of 4.0 to 9.0 mm/s. 1. A lubricant oil composition for automotive gears , comprising: a lubricant base oil comprising a mineral oil (A) having characteristics (A1) to (A3) described below , and/or a synthetic oil (B) having characteristics (B1) to (B3) described below; and an ethylene/α-olefin copolymer (C) having characteristics (C1) to (C5) described below , the lubricant oil composition having a kinematic viscosity at 100° C. of 4.0 to 9.0 mm/s ,{'sup': '2', '(A1) the kinematic viscosity at 100° C. is 2.0 to 6.5 mm/s,'}(A2) the viscosity index is not less than 105,(A3) the pour point is not more than −10° C.,{'sup': '2', '(B1) the kinematic viscosity at 100° C. is 1.0 to 6.5 mm/s,'}(B2) the viscosity index is not less than 120,(B3) the pour point is not more than −30° C.,(C1) the ethylene content is in the range of 55 to 85 mol %,{'sup': '2', '(C2) the kinematic viscosity at 100° C. is 10 to 200 mm/s,'}(C3) the molecular weight distribution (Mw/Mn) for the molecular weight measured by gel permeation chromatography (GPC) with reference to polystyrene is not more than 2.2,(C4) the pour point is not more than −10° C.,(C5) the melting point has a peak in the range of −30° C. to −60° C. and gives a heat of fusion (ΔH) of not more than 25 J/g ...

TOXICOLOGICALLY ACCEPTABLE ALKYLPHENOL DETERGENTS AS FRICTION MODIFIERS IN AUTOMOTIVE LUBRICATING OILS

The disclosed technology relates to the use of toxicologically acceptable hydrocarbyl- (e.g. alkyl-) phenol detergents and their salts in automotive lubricating oils, such as, for example, automatic or manual transmissions. 1. A transmission lubricant composition comprisinga. an oil of lubricating viscosity,b. from about 0.1 to about 5 wt % of a dispersant, andc. from about 0.1 to about 5 wt % of a detergent, wherein from about 0.01 to about 2 wt % of the detergent comprises an alkylphenol detergent comprising at least one unit of an alkyl-substituted phenol wherein the alkyl group is derived from oligomers of an olefin compound containing 3 to 8 carbon atoms, wherein the olefin-derived alkyl group comprises at least 30 mol percent of oligomers derived from n-butane, and where the alkyl group is a hydrocarbyl group of 12 to 48 carbon atoms, and{'sub': 2', '18, 'd. from about 0.05 to about 3 wt % of a C-Cdi- or tri-hydrocarbyl phosphite, based on the total weight of said lubricant'}wherein all wt % are based on a total weight of said lubricant composition.2. The lubricant of claim 1 , wherein the alkylphenol detergent is a sulfur-bridged phenate claim 1 , a sulfur-free alkylene-bridged phenate claim 1 , a salicylate claim 1 , or mixtures thereof.3. The lubricant of claim 2 , wherein the alkylphenol detergent comprises one or more alkali metals claim 2 , one or more alkaline earth metals claim 2 , or mixtures thereof.4. The lubricant of claim 3 , wherein the alkylphenol detergent is overbased.5. The lubricant of claim 4 , where the overbased alkylphenol detergent has a metal ratio of at least 1.5 claim 4 , at least 5 claim 4 , or at least 7.6. (canceled)7. The lubricant of claim 1 , wherein the alkylphenol detergent is an overbased sulfur-coupled alkylphenol detergent with a metal ratio of at least 1.5.9. The lubricant of claim 1 , wherein the alkylphenol detergent is a neutral or overbased salt of alkylsalicylic acid.11. The lubricant of claim 1 , wherein the oil of ...

Novel AminoBisPhosphonate Antiwear Additives

The present invention relates to novel aminobisphosphonate compounds useful as antiwear and/or friction modifier additive components, lubricant additive compositions and lubricant compositions each comprising such compounds, and methods for making and using the same.

Lubricant compositions

A lubricant composition includes a lubricant base oil (A) having a kinematic viscosity at 100° C. of 1 to 10 mm2/s, and an ethylene/α-olefin copolymer (B) in which (B1) the peak top molecular weight is 3,000 to 10,000, (B2) the copolymer shows no melting peak, (B3) the value B is not less than 1.1 and (B4) the kinematic viscosity at 100° C. is 140 to 500 mm2/s. The lubricant composition has a kinematic viscosity at 100° C. of not more than 20 mm2/s, a peak top of molecular weight in the range of 3,000 to 10,000, and a weight fraction of components having a molecular weight not less than 20,000 of 1 to 10% relative to all components having a molecular weight not less than the molecular weight that gives the peak top.

Ethylene/α-olefin copolymers and lubricating oils

The invention has an object of providing ethylene/α-olefin copolymers having high randomness and a small number of double bonds in the copolymers. The ethylene/α-olefin copolymers of the invention are obtained by copolymerizing ethylene and an α-olefin having 3 to 20 carbon atoms in the presence of an olefin polymerization catalyst which includes a bridged metallocene compound (A) represented by the formula [I], and at least one compound (B) selected from organometallic compounds (B-1), organoaluminum oxy compounds (B-2) and compounds (B-3) capable of reacting with the bridged metallocene compound (A) to form an ion pair, and have a specific weight average molecular weight, a specific molecular weight distribution, a specific glass transition point and a specific value B.

Polyolefin-derived dispersants

Ethylene-C 3 -C 10 alpha olefin copolymers, dispersants and lubricating oils/fuel compositions incorporating dispersants, and related methods are generally described herein. The copolymer may comprise ethylene-derived units and C 3 -C 10 alpha-olefin-derived units. The C 3 -C 10 alpha-olefin-derived units may have a carbon number from three to ten. For example, the C 3 -C 10 alpha-olefin-derived units may be propylene-derived units.

Lubricating composition containing an antiwear agent

The invention provides a lubricating composition containing an antiwear agent and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in a mechanical device such as an internal combustion engine, or a driveline device.

Lubricating composition containing an antiwear agent

The invention provides a lubricating composition containing an antiwear agent and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in a mechanical device such as an internal combustion engine, or a driveline device.

Pyrrolidine-2,5-dione derivatives for use in friction modification

The present disclosure relates to a compound of the formula I or a tribologically acceptable salt, solvate, hydrate, or proadditive thereof, wherein R1, R2 and R4 are as defined herein. Such novel pyrrolidine, or succinimide, derivatives may be useful as friction modifiers in lubricant compositions. This disclosure also relates to a method of using such friction modifier compounds in lubricating fluid formulations to lubricate machine parts, including gear, axle, engine, and transmission parts, and to lubricant compositions containing such friction modifier compounds.

Anti-corrosion additives

A lubricant composition comprising an oil of lubricating viscosity and an N-hydrocarbyl-substituted aminoester, wherein the N-hydrocarbyl substituent comprises a hydrocarbyl group of at least 3 carbons atoms, with a branch at the 1 or 2 position of the hydrocarbyl chain, provides good iron and copper corrosion performance in driveline or gear applications.

Lubricant and functional fluid compositions containing viscosity index improver

The disclosed invention relates to lubricant or functional fluid compositions containing viscosity index improvers in the form of self-healing polymers. The polymers may comprise one or more cleavable linkages, such as one or more disulfide bonds and/or one or more diene/dienophile linkages, to permit the polymer to reform if cleaved during use.

Star polymer and lubricating composition thereof

The present invention relates to a lubricating composition containing an oil of lubricating viscosity and a star polymer that has at least two inner blocks, at least one of which is in turn bonded to one or more outer blocks. The invention further relates to methods of lubricating a mechanical device with the lubricating composition.

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유동성 및 산화안정성을 향상시키는 절연유 제조 방법

유동성 및 산화안정성을 향상시키는 절연유 제조 방법이 개시된다. 본 발명에 따른 절연유 제조 방법은 (a) 나프텐계 기유와 파라핀계 기유를 70 : 30 ~ 60 : 40 중량부의 비율로 혼합하는 단계와; (b) 상기 (a) 단계에서 투입되는 파라핀계 기유 100 중량부에 대하여 사이클로헥사논을 0.01 중량부 ~ 0.1 중량부를 투입하는 단계와; (c) 상기 (b) 단계로 원료가 투입된 교반 탱크에 초음파를 인가하고 온도를 50 ~ 65도로 승온시킨 상태에서 60분 ~ 90분 동안 혼합 교반하는 단계; 및 (d) 상기 (c) 단계의 교반 탱크에 벤젠 C6H6등에 포함된 수소를 염소로 치환하여 얻는 불연성 절연유인 염소화 합성유를 사이클로헥사논 100 중량부에 대하여 200 ~ 500 중량부를 추가로 투입하여 교반하는 단계;를 포함하는 것을 특징으로 한다.

Seal swell additive

A seal swell agent for a lubricating fluid is described. The invention relates to a seal swell agent for use in lubricating oils, such as engine oils, turbine oils, automatic and manual transmission, or gear, fluids, drivetrain and gear oils and hydraulic fluids. The seal swell agent comprises a diester of sorbitol or a derivative thereof and at least one carboxylic acid. The invention extends to the use of a diester of sorbitol or a derivative thereof and at least one carboxylic acid as a seal swell agent, and a method of maintaining seal integrity.

Process for preparing polymers and compositions thereof

The present invention provides a process for preparing a polymer, employing the steps of: (1) contacting a free radical initiator; a chain transfer agent containing a thiocarbonyl thio group and a free radical leaving group; and a radically polymerizable monomer, to form a polymer chain; and (2) contacting the polymer chain of step (1) with at least one of a polyvalent coupling agent, a polymerization inhibitor, a grafting acylating agent, an amine and an oil of lubricating viscosity. The invention further provides compositions and uses for the polymer.

High viscosity lubricant compositions meeting low temperature performance requirements

A lubricant composition characterized as having a viscosity of less than about 150,000 cP at −40° C., a kinematic viscosity of less than about 150,000 cSt at −40° C., and a kinematic viscosity of at least about 18.5 cSt at 100° C. for use in association with a device involving metal to metal contact of moving parts comprising: (a) base-stock comprising (i) at least one relatively low viscosity polyalphaolefin, (ii) at least one ester, and at least one Group III base oil; (b) viscosity improver comprising (i) at least one relatively high viscosity polyalphaolefin, and (ii) a least one olefin copolymer; (c) a performance additive comprising at least one additive effective to improve at least one property of the lubricant and/or the performance of the equipment in which the lubricant is to be used; (d) at least one pour-point depressant; and, optionally, (e) at least one antifoam agent.

Poly(meth)acrylate-based viscosity index improver, lubricant additive and lubricant composition containing viscosity index improver

The present invention provides a poly(meth)acrylate-based viscosity index improver comprising a core portion and three or more arm portions, wherein each of the arm portions consists of a polymer chain comprising a structural unit represented by the following formula (1), and one end of the polymer chain is bonded to the core portion, and wherein a weight-average molecular weight Mw is 100000 or more, and a ratio of the weight-average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, is 1.6 or less. [R 1 represents hydrogen or a methyl group, and R 2 represents a C1 to C36 alkyl group.]

Mixtures of olefin-ester copolymer with polyolefin as viscosity modifier

A lubricant composition of an oil of lubricating viscosity; an esterified copolymer with a backbone comprising units derived from (i) an α-olefin monomer of at least about 6 carbon atoms and (ii) an ethylenically unsaturated carboxylic acid in a mole ratio of 1:3 to 3:1; and a polymer comprising olefin monomer units of 3 to 5 carbon atoms, wherein at least 50 percent by weight of such units contain fewer than 6 carbon atoms and wherein less than 5 percent by weight of such units are ethylene monomer units; exhibits good power transfer efficiency and elastohydrodynamic film thickness.

Viscosity index improver and lubricating oil composition

The present invention aims to provide a viscosity index improver excellent in shear stability and having a low HTHS viscosity and a high viscosity index. The viscosity index improver of the present invention contains a (co)polymer (A) containing a polyolefin-based monomer as an essential monomer unit, and a base oil, wherein the absolute value of difference in solubility parameter between the (co)polymer (A) and the base oil is 0.8 to 2.0 (cal/cm 3 ) 1/2 .

Functional fluids comprising alkyl toluene sulfonates

Provided are formulations, methods of making, and methods of using a functional fluid of the present invention to achieve and maintain optimal frictional characteristics in machines housing that fluid, wherein the functional fluid comprises, among others, a friction-modifying amount of an alkyl toluene sulfonate salt or a mixture of alkyl toluene sulfonate salts.

Method of lubricating a driveline device

The invention provides a method of lubricating a mechanical device by supplying a lubricating composition containing an oil of lubricating viscosity and a compound having 2 to 20 hydroxy-carboxylic acid residues. The invention further relates to the use of the compound in a driveline device to provide at least one of antiwear performance, friction modification (particularly for enhancing fuel economy).

Farm tractor lubricating composition with good water tolerance

A lubricant of (a) an oil of lubricating viscosity; (b) a block copolymer of (i) a hydrophobic first block of C 1-30 alkyl (meth)acrylic units having an average total number of carbon atoms of at least 8; and (ii) a second block of (meth)acrylic units, at least some units of which comprise a heteroatom imparting polar character to the block; (c) an overbased calcium detergent; (d) a phosphorus-containing anti-wear agent that does not contribute to the metal content of the lubricant; and (e) a friction modifier suitable to reduce the static coefficient of friction at a metal-composition interface, is suitable for lubricating a farm tractor.

Star polymer lubricating composition

The invention provides a lubricating composition containing (a) 0.1 to 15 wt % of a polymer with (i) a weight average molecular weight of 100,000 to 500,000; and (ii) a shear stability index of 10 to 60; (b) a phosphorus-containing acid, salt, or ester; (c) a dispersant; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.

Overbased friction modifiers and methods of use thereof

The present invention provides a multipurpose overbased metal salt of the reaction product of a hydrocarbyl substituted amine with an itaconate, such as an N-substituted 4-carboxypyrrolidin-2-one, and methods of employing the same in lubricating compositions. Overbasing the N-substituted 4-carboxypyrrolidin-2-one can provide improved friction modifying performance to the compound as well as impart multi-functionality to the compound, i.e., the compound may function as a friction modifier as well as, for example, a detergent, anti-wear or extreme pressure agent and dispersant in lubricating compositions. The lubricating compositions containing the overbased N-substituted 4-carboxypyrrolidin-2-one are preferably intended to be employed in a method for lubricating a mechanical device, such as an automatic or manual transmission. However, it is envisioned that the compound can be employed in engine oil lubricants and any other type of functional fluid.

Delivery of substantially insoluble additives to functional fluids

In accordance with the present invention, it has been discovered that an additive which is substantially insoluble in, has low solubility in and/or is otherwise incompatible with a functional fluid, may be supplied to the functional fluid by use of a gel composition and/or a solid additive composition containing the additive, such that the functional fluid can receive the benefit of the supplied additive and/or contain levels of the additive not otherwise achievable by conventional delivery method due to the incompatibility of the additive with the functional fluid.

Lubricating oil composition

Provided by the present invention is a lubricating oil composition having a low friction coefficient (traction coefficient) and a superior fluidity at low temperature, suitable as a transmission oil including an automatic transmission oil, by using a base oil which contains a mineral oil satisfying the conditions that (1) kinetic viscosity at 100° C. is in the range of 5 mm 2 /s or more to 8 mm 2 /s or less, (2) viscosity index is 130 or more, and (3) % C P by a ring analysis (n-d-M method) is 80 or more.

Lubricating oil composition

The present invention provides a lubricating oil composition than can keep the metal-to-metal friction coefficient high and is excellent in anti-seizure properties. The lubricating oil composition comprises a base oil and on the basis of the total mass of the composition (A) 0.05 percent by mass or more of a polysulfide, (B) 0.05 percent by mass or more of thiadiazole and (C) 0.1 percent by mass or more of a phosphorus-containing additive, and containing sulfur in an amount of 0.2 percent by mass or more on the basis of sulfur and phosphorus in an amount of 0.2 percent by mass or less on the basis of phosphorus, the ratio of the sulfur basis percent by mass/the phosphorus basis percent by mass (S/P) being from 3.0 to 5.0.

Star polymer lubricating composition

The invention provides a lubricating composition containing (a) a polymer derived from greater than 50 wt % or more of a non-diene monomer, wherein the polymer has a weight average molecular weight of about 2000 to about 200,000, and wherein the polymer has a shear stability index of about 0 to about 25; (b) a phosphorus-containing acid, salt, or ester; (c) an extreme pressure agent, other than a phosphorus-containing acid, salt, or ester; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.