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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 4438. Отображено 100.

12-07-2012 дата публикации

Composition to improve cold flow properties of fuel oils

Номер: US20120174474A1

Автор: Jane Nenito, Jian Mike Liu, Markus Weber, Rene Koschabek, Ronny Sondjaja, Torsten Stoehr

Принадлежит: Evonik RohMax Additives GmbH

The present invention describes a composition comprising at least one polyalkyl(meth)acrylate polymer having a number average molecular weight Mn of from 1000 to 10000 g/mol and a polydispersity Mw/Mn of from 1 to 8 and at least one ethylene vinyl acetate copolymer comprising units being derived from at least one alkyl (meth)acrylate having 1 to 30 carbon atoms in the alkyl residue. The composition is useful as cold flow improver in fossil fuel oil and or biodiesel fuel oil.

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Номер записи: 1

09-08-2012 дата публикации

Solid Lubricant

Номер: US20120201487A1

Автор: Eugene Kverel

Принадлежит: SKF AB

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

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Номер записи: 2

11-10-2012 дата публикации

Use of comb copolymers for improving scuffing load capacity

Номер: US20120258899A1

Автор: Boris Eisenberg, Michael Alibert, Roland Schweder, Torsten Stöhr

Принадлежит: Evonik RohMax Additives GmbH

The present invention relates to the use of comb polymers comprising, in the main chain, repeat units derived from polyolefin-based macromonomers with a molecular weight of at least 500 g/mol, and repeat units derived from low molecular weight monomers with a molecular weight less than 500 g/mol, for improving the load-bearing capacity of hydraulic fluids. Furthermore, the present invention describes new hydraulic fluids.

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Номер записи: 3

29-11-2012 дата публикации

Method of Lubricating a Manual Transmission

Номер: US20120302479A1

Автор: Malcolm G.J. Macduff, Paul A. Robinson, Robert W. Alger, Simon D. Evans

Принадлежит: Lubrizol Corp

The present invention relates to a method of lubricating a driveline device comprising supplying to the driveline device a lubricating composition comprising an oil of lubricating viscosity and an aromatic hydroxy-substituted compound. The invention further provides for the use of the lubricating composition comprising the aromatic hydroxy-substituted compound as at least one of a filterability aid, and a wax crystal growth modifier/gelation inhibitor in the driveline device.

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Номер записи: 4

10-01-2013 дата публикации

Sheet whose lubricity is maintained under wet conditions

Номер: US20130012677A1

Автор: Hitoshi Ozawa, Tatsuo Ohtani, Yusuke Nishikawa

Принадлежит: Sumitomo Seika Chemicals Co Ltd

The present invention provides a sheet that has excellent lubricity and good touch feeling under wet conditions and suffers from little drop of the lubricity even if the sheet is used repeatedly. In the sheet of the present invention, a layer of modified polyalkylene oxide obtainable by reacting a polyalkylene oxide compound, a diol compound, and a diisocyanate compound together is directly formed on a surface of a substrate.

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Номер записи: 5

14-02-2013 дата публикации

Drag reduction of asphaltenic crude oils

Номер: US20130037117A1

Автор: Kenneth W. Smith, Ray L. Johnston, Stuart N. Milligan, Timothy L. Burden, Wayne R. Dreher, Jr., William F. Harris

Принадлежит: ConocoPhillips Co

A method of introducing a drag reducing polymer into a pipeline such that the friction loss associated with the turbulent flow though the pipeline is reduced by suppressing the growth of turbulent eddies. The drag reducing polymer is introduced into a liquid hydrocarbon having an asphaltene content of at least 3 weight percent and an API gravity of less than about 26° to thereby produce a treated liquid hydrocarbon. The treated liquid hydrocarbon does not have a viscosity less than the viscosity of the liquid hydrocarbon prior to treatment with the drag reducing polymer. Additionally, the drag reducing polymer is added to the liquid hydrocarbon in the range from about 0.1 to about 500 ppmw.

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Номер записи: 6

14-02-2013 дата публикации

Drag reduction of asphaltenic crude oils

Номер: US20130041094A1

Автор: Kenneth W. Smith, Ray L. Johnston, Stuart N. Milligan, Timothy L. Burden, Wayne R. Dreher, Jr., William F. Harris

Принадлежит: ConocoPhillips Co

A method of preparing a drag reducing polymer wherein the drag reducing polymer is able to be injected into a pipeline, such that the friction loss associated with the turbulent flow through the pipeline is reduced by suppressing the growth of turbulent eddies. The drag reducing polymer is injected into a pipeline of liquid hydrocarbon hydrocarbon having an asphaltene content of at least 3 weight percent and an API gravity of less than about 26° to thereby produce a treated liquid hydrocarbon wherein the viscosity of the treated liquid hydrocarbon is not less than the viscosity of the liquid hydrocarbon prior to treatment with the drag reducing polymer. The drag reducing polymer has a solubility parameter within 4 MPa 1/2 of the solubility parameter of the liquid hydrocarbon. The drag reducing polymer is also added to the liquid hydrocarbon in the range from about 0.1 to about 500 ppmw.

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Номер записи: 7

18-04-2013 дата публикации

Additive to Improve Flow, Reduce Power Consumption and Pressure Drop in Heavy Oil Pipelines

Номер: US20130096043A1

Автор: Asomaning Samuel, Lehrer Scott E.

Принадлежит: BAKER HUGHES INCORPORATED

A drag reducing additive for heavy oil, such as crude oil, includes a polymeric alkyl-substituted phenol formaldehyde resin and a solvent having at least one of an ester (e.g. ethyl acetate), an aldehyde (e.g. butyraldehyde), and an aromatic hydrocarbon (e.g. toluene, xylene, and the like), or mixtures thereof. When used together with a diluent (e.g. condensate, naphtha, or the like), the additive may reduce viscosity of the combined oil, diluent, and additive by at least 20%, increase throughput by at least 6%, reduce power consumption by at least 3%, reduce the diluent proportion by at least 3%, or some combination of these effects, as compared with an otherwise identical heavy oil without the additive. 1. A drag reducing additive comprising:a polymeric alkyl-substituted phenol formaldehyde resin; anda solvent selected from the group consisting of an ester, an aldehyde, and combinations thereof.2. The drag reducing additive of where the amount of polymeric alkyl-substituted phenol formaldehyde resin in the additive ranges from about 1 to about 20 wt %.3. The drag reducing additive of where the alkyl group of the polymeric alkyl-substituted phenol formaldehyde resin is a linear or branched alkyl group having from 2 to 20 carbon atoms claim 1 , and where the polymeric alkyl-substituted phenol formaldehyde resin has a weight average molecular weight ranging from about 1 claim 1 ,500 to about 30 claim 1 ,000.4. The drag reducing additive of where the additive has a component selected from the group consisting of the following with the indicated proportions claim 1 , based on the solvent in the total additive:from about 10 to about 95 wt % ester; andfrom about 10 to about 95 wt % aldehyde.5. The drag reducing additive of where:the ester is selected from the group consisting of ethyl formate, methyl formate, methyl acetate, ethyl acetate, ethyl propionate, dimethyl carbonate, diethyl carbonate, ethyl lactate, and combinations thereof; andthe aldehyde is selected from ...

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Номер записи: 8

13-06-2013 дата публикации

EXTREME PRESSURE AGENT FOR LUBRICANT OIL AND LUBRICANT OIL COMPOSITION CONTAINING SAME

Номер: US20130150274A1

Автор: Yamamoto Kenji

Принадлежит:

The purpose of the present invention is to provide an extreme pressure agent which does not contain any metal element or the like and is highly safe but which exhibits performance equivalent to those of conventional extreme pressure agents each containing a metal element or the like when used in lubrication purposes. 2. The extreme pressure agent for lubricant oils according to claim 1 , wherein the copolymer (A) is a copolymer consisting of the alkyl acrylate (a) and the hydroxyalkyl acrylate (b).3. The extreme pressure agent for lubricant oils according to claim 1 , wherein Rof the alkyl acrylate (a) is an alkyl group having 10 to 14 carbon atoms.4. A lubricant oil composition comprising a base oil and the extreme pressure agent for lubricant oils according to claim 1 , wherein the extreme pressure agent for lubricant oils is contained in an amount of 0.1 to 50 wt % with respect to the total amount of the lubricant oil composition.5. The extreme pressure agent for lubricant oils according to claim 2 , wherein Rof the alkyl acrylate (a) is an alkyl group having 10 to 14 carbon atoms.6. A lubricant oil composition comprising a base oil and the extreme pressure agent for lubricant oils according to claim 2 , wherein the extreme pressure agent for lubricant oils is contained in an amount of 0.1 to 50 wt % with respect to the total amount of the lubricant oil composition.7. A lubricant oil composition comprising a base oil and the extreme pressure agent for lubricant oils according to claim 3 , wherein the extreme pressure agent for lubricant oils is contained in an amount of 0.1 to 50 wt % with respect to the total amount of the lubricant oil composition.8. A lubricant oil composition comprising a base oil and the extreme pressure agent for lubricant oils according to claim 5 , wherein the extreme pressure agent for lubricant oils is contained in an amount of 0.1 to 50 wt % with respect to the total amount of the lubricant oil composition. The present invention ...

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Номер записи: 9

08-08-2013 дата публикации

MOTOR HAVING IMPROVED PROPERTIES

Номер: US20130199482A1

Автор: Cressman Trilby, Langston Justin August, Moore Peter, Wang Jen-Lung, Webb Michael E.

Принадлежит: Evonik Oil Additives GmbH

The present invention describes a motor designed for Fuel compatibility comprising a lubricant composition comprises at least one ester group containing polymer having a high polarity. 1: A motor , comprising a lubricant composition ,wherein the motor is suitable for a flexible-fuel vehicle or a dual-fuel vehicle and the lubricant composition comprises at least one ester group containing polymer having a high polarity.2: The motor according to claim 1 , comprising a compression rate of at least 10:1.3: The motor according to claim 1 , comprising a fuel injection pump.4: The motor according to claim 1 , comprising a multi valve.5: The motor according to claim 1 ,wherein the motor meets a requirement of exhaust emission standard Euro 5.6: The motor according to claim 1 , comprising an exhaust gas recirculation.7: The motor according to claim 1 , comprising a secondary-air system.8: The motor according to claim 1 ,wherein the at least one ester group containing polymer is a statistical copolymer comprising at least 7% by weight of dispersing repeat units derived from a dispersing monomer.9: The motor according to claim 8 ,wherein the at least one ester group containing polymer is a statistical copolymer comprising at least 7% by weight of dispersing repeat units derived from at least one heterocyclic vinyl compound.10: The motor according to claim 1 ,wherein the at least one ester group containing polymer is a graft copolymer having an nonpolar polymer as a graft base and a dispersing monomer as a graft layer.11: The motor according to claim 10 ,wherein the at least one ester group containing polymer comprises at least one heterocyclic vinyl compound as the graft layer.12: The motor according towherein the at least one ester group containing polymer is the graft copolymer comprising from 0.5 to 10% by weight of dispersing repeat units derived from the at least one heterocyclic vinyl compound.13: The motor according to claim 12 ,wherein the at least one ester group ...

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Номер записи: 10

29-08-2013 дата публикации

DIESEL MOTOR HAVING IMPROVED PROPERTIES

Номер: US20130219868A1

Автор: Alibert Michael, Bartels Thorsten, Couet Julien, Dardin Alexander, Deneen Daniel H., Hess Brian, Mueller Michael, Neveu Christian Daniel Georges, Renner Gerhard, Stoehr Torsten, Wincierz Christoph

Принадлежит: Evonik Oil Additives GmbH

The present invention describes a motor designed for biodiesel compatibility comprising a particulate filter, a motor control unit being able to inject fuel to the engine in order to increase the exhaust temperature, and a lubricant composition, characterized in that the lubricant composition comprises at least one ester group containing polymer. 1. A motor designed for biodiesel compatibility , comprising:a particulate filter,a motor control unit suitable for injecting fuel to an engine in order to increase an exhaust temperature, anda lubricant composition, wherein the lubricant composition comprises an ester group comprising polymer.2. The motor according to claim 1 , wherein the motor meets requirements of exhaust emission standard EURO 5.3. The motor according to claim 1 , wherein the motor further comprises a common rail system.4. The motor according to claim 1 , wherein the motor further comprises an exhaust gas recirculation.5. The motor according to claim 1 , wherein the particulate filter is a wall-flow filter.6. The motor according to claim 1 , wherein the ester group comprising polymer is an alkyl (meth)acrylate polymer.7. The motor according to claim 1 , wherein the lubricant composition comprises a mixture of at least two polymers comprising ester groups.8. The motor according to claim 1 , wherein the lubricant composition comprises an alkyl (meth)acrylate polymer and an ethylene vinyl acetate polymer.9. The motor according to claim 1 , wherein the lubricant composition comprises an ester group comprising polymer and an olefinic polymer.10. The motor according to claim 1 , wherein the ester group comprising polymer is an alkyl (meth)acrylate polymer comprising dispersing groups.11. The motor according to claim 1 , wherein the ester group comprising polymer is an alkyl (meth)acrylate polymer comprising units derived from (meth)acrylates comprising from 23 to 4000 carbon atoms.12. The motor according to claim 1 , wherein the ester group comprising ...

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Номер записи: 11

29-08-2013 дата публикации

Terpene derived compounds

Номер: US20130225462A1

Автор: Stephen A. Di Biase, Syed Q.A. Rizvi

Принадлежит: Elevance Renewable Sciences Inc

This invention relates to terpene derived compounds and farnesene derived compounds, and to the use of such terpene derived compounds and farnesene derived compounds in lubricants, detergents, dispersants, functional fluids, fuels, polymer compositions, cold flow improvers, and the like.

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Номер записи: 12

05-09-2013 дата публикации

Transmission lubricant

Номер: US20130229016A1

Автор: Christoph Wincierz, Juergen Gebhardt, Micahel Mueller, Reza Ghahary, Roland Schweder, Thilo Krapfl, Thomas Schimmel, Torsten Stoehr

Принадлежит: Evonik RohMax Additives GmbH

The present invention relates to a transmission lubricant comprising at least 30% by weight of polyalkyl (meth)acrylate. The present invention further describes polyalkyl (meth)acrylates for use in lubricants and also processes for preparing them and their use. The present lubricants can be used particularly in wind turbine transmissions.

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Номер записи: 13

26-09-2013 дата публикации

COPOLYMERS COMPRISING ESTER GROUPS AND USE THEREOF IN LUBRICANTS

Номер: US20130252866A1

Автор: Eisenberg Boris, Stoehr Torsten, Suchert Ellen

Принадлежит: Evonik Oil Additives GmbH

The present invention relates to copolymers comprising ester groups and having at least one nonpolar segment P and at least one polar segment D, the polar segment D having at least 8 repeat units and the proportion by weight of dispersing repeat units in the polar segment D being at least 30%, based on the weight of the polar segment D, wherein the copolymer comprising ester groups is obtainable by NMP (nitroxide mediated polymerization). The invention further relates to lubricant oils having improved friction properties and comprising said copolymers. 1. A copolymer , comprising:an ester group,a nonpolar segment P, anda polar segment D,whereinthe polar segment D comprises at least 8 repeat units,a proportion by weight of dispersing repeat units in the polar segment D is at least 30%, based on a weight of the polar segment D, andthe copolymer is obtained via a nitroxide mediated polymerization.2. The copolymer according to claim 1 , wherein the copolymer is obtained via a multistage polymerization comprising a first stage and a last stage claim 1 , with the nonpolar segment P prepared in the first stage and the polar segment D prepared in the last stage.3. The copolymer according to claim 1 , wherein a transferrable nitroxyl radical compound in the nitroxide mediated polymerization comprises a phosphorus atom.4. The copolymer according to claim 2 , wherein a transferrable nitroxyl radical compound in the multistage polymerization comprises a phosphorus atom claim 2 , and the transferrable nitroxyl radical compound is attached to an end of the polar segment D.5. The copolymer according to claim 1 , wherein the copolymer comprises repeat units derived from styrene and methacrylate.6. The copolymer according to claim 5 , wherein a proportion of the repeat units derived from styrene is of from 0.5 to 10% by weight.7. The copolymer according to claim 1 , wherein a weight ratio of the nonpolar segments P to the polar segments D is of from 100:1 to 1:1.10. The copolymer ...

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Номер записи: 14

17-10-2013 дата публикации

Amine Terminated and Hydroxyl Terminated Polyether Dispersants

Номер: US20130274160A1

Автор: Delbridge Ewan E., Eveland Renee A., Jones Joanne L., Proust Nicolas, Pudelski John K.

Принадлежит: THE LUBRIZOL CORPORATION

The disclosed technology relates to a dispersant composition comprising the reaction product of a polyolefin acylating agent and an amine terminated or hydroxyl terminated polyether. In addition, the technology relates to lubricating compositions containing the dispersant composition and an optional synergistic amount of another dispersant, as well as methods of employing the dispersant composition in an engine and engine oils. 1. A dispersant composition comprising the reaction product of a polyolefin acylating agent , and a hydroxyl terminated or amine terminated polyether.2. The dispersant composition of wherein the hydroxyl terminated or amine terminated polyether is selected from the group consisting of (i) a polyethylene glycol claim 1 , (ii) a polypropylene glycol claim 1 , (iii) a mixture of polyoxyalkylene amines claim 1 , or (iv) some combination thereof.3. The dispersant composition of wherein the hydroxyl terminated or amine terminated polyether is selected from the group consisting of (i) triethylene glycol claim 1 , (ii) diethylene glycol claim 1 , (iii) a 250 to 350 molecular weight polyethylene glycol claim 1 , (iv) a 200 to 350 molecular weight polytetrahydrofuran claim 1 , (v) a mixture of one or more amine terminated glycols containing units derived from ethylene oxides claim 1 , propylene oxides claim 1 , butylene oxides or some combination thereof claim 1 , or (vi) some combination thereof.5. The dispersant composition of wherein the polyolefin acylating agent is the reaction product of a polyolefin selected from polyisobutylene or an olefin-copolymer with a carboxylic acid selected from monoethylenically unsaturated C-Cmonocarboxylic acid or ester thereof claim 1 , or monoethylenically unsaturated C-Cdicarboxylic acid claim 1 , anhydride or ester thereof.6. The dispersant composition of wherein the reaction is not free-radically initiated.7. The dispersant composition of wherein the carboxylic acid is maleic acid claim 5 , itaconic acid claim 5 ...

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Номер записи: 15

21-11-2013 дата публикации

Novel Copolymers and Lubricating Compositions Thereof

Номер: US20130310290A1

Автор: Barton William, Price David, Visger Daniel J.

Принадлежит: THE LUBRIZOL CORPORATION

The present invention relates to a copolymer comprising units derived from monomers (i) an α-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof esterified with a primary alcohol branched at the β- or higher position, wherein the copolymer has a reduced specific viscosity of up to 0.08. The invention further provides for a lubricating composition containing said copolymer. The invention further provides a method and use of controlling viscosity index by supplying to an oil of lubricating viscosity the copolymer with pendant groups. In addition, the copolymer of the present invention may be useful as a base oil replacement. 141.-. (canceled)42. A lubricating composition comprising an oil of lubricating viscosity and 1.5 wt % to 65 wt % of a copolymer comprising units derived from monomers (i) an α-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof esterified with a primary alcohol branched at the β- or higher position , wherein the copolymer prior to esterification has a reduced specific viscosity of up to 0.08 , wherein the primary alcohol branched at the β- or higher position has at least 12 to 60 carbon atoms , and wherein the α-olefin has 10 to 18 carbon atoms.43. The lubricating composition of claim 42 , wherein the ethylenically unsaturated carboxylic acid or derivatives thereof is maleic anhydride.44. The lubricating composition of claim 42 , wherein the copolymer has a reduced specific viscosity of 0.02 to 0.07.45. The lubricating composition of claim 42 , wherein the copolymer is composed of units derived from monomers of (i) an α-olefin having 12 carbon atoms claim 42 , and (ii) maleic anhydride.46. The lubricating composition of claim 42 , wherein the copolymer is further amidated or imidated with a nitrogen-containing compound.47. The lubricating composition of claim 46 , wherein the nitrogen-containing compound is an amine-containing compound selected from the group consisting of ...

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Номер записи: 16

21-11-2013 дата публикации

Process for Preparing Polymers and Compositions Thereof

Номер: US20130310291A1

Автор: Baum Marina, Davies Mark C., Johnson John R., Schober Barton J., Viger Daniel C.

Принадлежит: THE LUBRIZOL CORPORATION

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, other ...

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Номер записи: 17

05-12-2013 дата публикации

Adducts of Low Molecular Weight PIB With Low Polydispersity and High Vinylidene Content

Номер: US20130324665A1

Автор: Sengstock Jennifer Leigh, Shaikh Sohel K.

Принадлежит: TPC Group LLC

A PIB derivative suitable for use as a fuel additive or lubricant additive prepared from a reactive low molecular weight polyisobutylene composition comprising at least 50 mol percent alpha vinylidene terminated polyisobutylene molecules, the composition having a polydispersity of no more than 1.5 and a number average molecular weight of at least 500 Daltons and no more than 1000 Daltons. The derivative is selected from the group consisting of: alkyl hydroxyaromatic compounds; alkyl alkoxy aromatic compounds; polyisobutenylsuccinic anhydrides; polyisobutenylsuccinimides; PIB-amine compounds; sulfurized PIB compounds; and Mannich condensation products of an alkylated hydroxyaromatic compound. 1. A PIB derivative suitable for use as a fuel additive or a lubricant additive prepared from a reactive low molecular weight polyisobutylene composition comprising at least 50 mol percent alpha vinylidene terminated polyisobutylene molecules , the composition having a polydispersity of no more than 1.5 and a number average molecular weight of at least 500 Daltons and no more than 1000 Daltons , wherein the derivative is selected from the group consisting of: alkyl hydroxyaromatic compounds; alkyl alkoxy aromatic compounds; polyisobutenylsuccinic anhydrides; polyisobutenylsuccinimides; PIB-amine compounds; sulfurized PIB compounds; and Mannich condensation products of an alkylated hydroxyaromatic compound.2. The derivative of a reactive low molecular weight polyisobutylene composition according to claim 1 , wherein the low molecular weight polyisobutylene composition comprises at least 60 mol percent alpha vinylidene terminated polyisobutylene molecules.3. The derivative of a reactive low molecular weight polyisobutylene composition according to claim 1 , wherein the low molecular weight polyisobutylene composition comprises at least 70 mol percent alpha vinylidene terminated polyisobutylene molecules.4. The derivative of a reactive low molecular weight polyisobutylene ...

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Номер записи: 18

02-01-2014 дата публикации

Fuel and engine oil composition and its use

Номер: US20140000540A1

Автор: Joseph Michael Russo, Timothy Michael Shea

Принадлежит: Shell Oil Co

A composition is provided that contains a major amount of a hydrocarbon base fluid having a viscosity of up to 600 cST at 40 ° C. and (b) a minor amount of a micronized cellulose acetate butyrate having a particle size distribution on average of less than 30 microns. The compositions reduce and control the friction coefficient and anti-wear film of hydrocarbon base fluids.

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Номер записи: 19

02-01-2014 дата публикации

Marine Engine Lubrication

Номер: US20140005087A1

Автор: Doan Minh, Garner Terence, Girshick Frederick W.

Принадлежит:

A two-stroke or four-stroke marine engine lubricating oil composition comprising an oil of lubricating viscosity in a major amount and (A) additives in respective minor amounts; and (B) a polymethacrylate viscosity modifier. Preferably, brightstock is completely or substantially absent from the composition. 1. A two-stroke or four-stroke marine engine lubricating oil composition comprising an oil of lubricating viscosity in a major amount and(A) additives, in respective minor amounts; and(B) a viscosity modifier in the form of a polymethacrylate in an amount in the range of 0.05-6 mass %,wherein the composition includes less than 0.5 mass % of brightstock; andwherein the two-stroke marine engine lubricating oil composition has a TBN of 40 to 100 mg KOH/g, as calculated using ASTM D2896, or the four-stroke marine engine lubricating oil composition has a TBN of 20 to 60 mg KOH/g, as calculated using ASTM D2896.2. The composition as claimed in claim 1 , wherein the polymethacrylate has a weight-average molecular weight of 180 claim 1 ,000 or more.5. The composition as claimed in claim 1 , in the form of a marine diesel cylinder lubricant.6. The composition as claimed in claim 1 , in the form of a trunk piston engine oil.7. A method of lubricating a cross-head marine diesel engine comprising supplying a composition as claimed in to the piston/cylinder assembly of the engine.8. A method of lubricating a trunk piston marine diesel engine comprising supplying a composition as claimed in to the engine.9. A method of reducing the amount of brightstock in a two-stroke or four-stroke marine engine lubricating oil composition comprising an oil of lubricating viscosity in a major amount and (A) additives claim 1 , in respective minor amounts; the method comprising the step of replacing claim 1 , in part or in full claim 1 , the brightstock with 0.05 to 6 mass % of (B) a viscosity modifier in the form of a polymethacrylate.10. The method as claimed in claim 9 , wherein (B) ...

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Номер записи: 20

09-01-2014 дата публикации

USE OF CELLULOSE NANOCRYSTALS AS A CORROSION INHIBITOR

Номер: US20140011722A1

Автор: Garner Andrew

Принадлежит:

The present invention relates to the use of charged cellulose nanocrystals as a corrosion inhibitor. According to one aspect, there is provided a corrosion inhibitor comprising of a plurality of charged cellulose nanocrystals fibrils. There is further provided a process for inhibiting corrosion of metal equipment where water can reside. According to a further aspect, the process includes adding an effective corrosion inhibiting amount of acid-form the cellulose nanocrystals. According to another aspect, the process includes selectively causing a first set of the cellulose nanocrystals to be negatively charged. The first set of the cellulose nanocrystals so charged function as an anodic corrosion inhibitor. The process includes selectively causing a second set of the cellulose nanocrystals to be positively charged. The second set of the cellulose nanocrystals so charged functions as a cathodic corrosion inhibitor. 1. A corrosion inhibitor comprising:a plurality of charged cellulose nanocrystals fibrils.2. The corrosion inhibitor as claimed in wherein the cellulose nanocrystals are in acid-form.3. The corrosion inhibitor as claimed in for use in inhibiting corrosion in ferrous metals.4. The corrosion inhibitor as claimed in claim 1 , wherein the charged cellulose nanocrystals fibrils are attracted to ionic components of a corroding metal surface.5. The corrosion inhibitor as claimed in claim 4 , wherein the charged cellulose nanocrystals so attracted form a coating on the metal surface and inhibit electrochemical reactions from driving the corrosion process thereby.6. The corrosion inhibitor as claimed in wherein the cellulose nanocrystals are negatively charged and function as an anodic corrosion inhibitor.7. The corrosion inhibitor as claimed in wherein the cellulose nanocrystals are positively charged and function as a cathodic corrosion inhibitor.8. The use of the inhibitor as claimed in in a paint formulation.9. A corrosion-inhibiting cutting fluid composite ...

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Номер записи: 21

09-01-2014 дата публикации

Lubricating oil composition

Номер: US20140011724A1

Автор: Noriko Abe, Yasushi Onumata

Принадлежит: JX Nippon Oil and Energy Corp

A lubricating oil composition which exceeds the fuel saving performance of a conventional low viscosity lubricating oil composition, contains (A) a lubricating base oil having a % C A of 2 or less, adjusted to a 100° C. kinematic viscosity of 1.5 to 4.5 mm 2 /s and (B) a viscosity index improver including (B1) a poly(meth)acrylate having a weight-average molecular weight of 50,000 or less in an amount of 1 to 10 percent by mass and (B2) a poly(meth)acrylate having a weight-average molecular weight of 100,000 to 250,000 in an amount of 0.1 to 5 percent by mass of the total composition. The composition has a 80° C. high-shear viscosity (Vs: mPa·s) and a 80° C. kinematic viscosity (Vk: mm 2 /s) ratio (Vs/Vk) of less than 1, a coefficient of traction of 0.02 or less at 40° C., an average speed of 3.0 m/s, a slip ratio of 10%, and a contact pressure of 0.4 GPa.

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Номер записи: 22

09-01-2014 дата публикации

Method of Reducing the Rate of Depletion of Basicity of a Lubricating Oil Composition in Use in an Engine

Номер: US20140011725A1

Автор: Marsh Adam P., Milne Neal J.

Принадлежит:

Disclosed is a method of reducing the rate of depletion of basicity (as determined by ASTM D2896) of a lubricating oil composition in use in an engine. The lubricating oil composition includes at least one overbased alkali or alkaline earth metal detergent. The method comprises adding to the lubricating oil composition one or more compounds of Formula (I): 2. The method as claimed in claim 1 , wherein n in Formula (I) is 0.3. The method as claimed in claim 1 , wherein x in Formula (I) is 1.4. The method as claimed in claim 1 , wherein R in Formula (I) is 9 to 20 carbon atoms.5. The method as claimed claim 1 , wherein R in Formula (I) is branched.6. The method as claimed in claim 1 , wherein Ris H claim 1 , Ris H and R is in the para position in relation to the —O—[CHCHO]H group in formula (I).7. The method as claimed in claim 1 , wherein the compounds of formula (I) include less than 1 mole % of unreacted alkyl phenol.8. The method as claimed in claim 1 , wherein n=1 for more than 60 mole % of the compounds of formula (I).9. The method as claimed in claim 1 , wherein the alkaline earth metal salts of the compounds of Formula (I) are calcium or magnesium salts.10. The method as claimed claim 1 , wherein compounds of formula (I) in which n≧2 constitute less than 5 mole % of the compounds of formula (I).11. The method as claimed in claim 1 , wherein the compounds of formula (I) are methylene-bridged alkyl phenols or ethoxylated methylene-bridged alkyl phenols.12. The method as claimed in claim 1 , wherein the lubricating oil composition has a TBN of 4 to 100 as measured by ASTM D2896.13. The method as claimed in claim 1 , wherein the lubricating oil composition is a marine cylinder lubricant claim 1 , a trunk piston engine oil claim 1 , a gas engine oil or a crankcase lubricating oil composition. This invention relates to a method of reducing the rate of depletion of basicity (as determined by ASTM D2896) of a lubricating oil composition in use in an engine, the ...

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Номер записи: 23

16-01-2014 дата публикации

LUBRICANT COMPOSITIONS

Номер: US20140018273A1

Автор: Meertens Marinus, Van Voorst Ronald, Zweifel Daniel F.

Принадлежит: Dow Global Technologies LLC

Provided are lubricant compositions that exhibit high viscosity index and low Noack volatility. A lubricant composition of the invention comprises: (a) a polyalkylene glycol of formula I: RO-(AO)-R(I) wherein R, R, and n are as defined herein; and (b) an additive package comprising an anti-oxidant. 1. A lubricant composition comprising: {'br': None, 'sub': 'n', 'sup': '1', 'RO—(AO)—R\u2003\u2003(I)'}, '(a) a polyalkylene glycol of formula I{'sub': 4', '22', '1', '6, 'sup': '1', 'wherein R is C-Calkyl; AO is independently ethyleneoxy, propyleneoxy, butyleneoxy, or mixtures of two or more thereof; n is 8-16; and Ris C-Calkyl; and'}(b) an additive package comprising an amine anti-oxidant, wherein the lubricant composition has a Noack volatility of 13 percent or less and a viscosity index of at least 165.2. The lubricant composition according to wherein R is linear C-Calkyl3. The lubricant composition according to wherein Ris C-Calkyl.4. The lubricant composition according to wherein the polyalkylene glycol of formula I has a number average molecular weight of from 500 to 1500 g/mol.5. The lubricant composition according to having a viscosity index of at least 180.6. The lubricant composition according to wherein AO is a mixture of ethyleneoxy and propyleneoxy.7. The lubricant composition according to wherein AO is a mixture of propyleneoxy and butyleneoxy.8. The lubricant composition according to wherein AO is butyleneoxy.9. The lubricant composition according to wherein the polyalkylene glycol is of formula II:{'br': None, 'sub': 'n', 'sup': '1', 'RO—(PO)—R\u2003\u2003(II)'}{'sub': 4', '22', '1', '3, 'sup': '1', 'wherein R is C-Calkyl; PO is propyleneoxy; n is 8-16; and Ris C-Calkyl.'}10. The lubricant composition according to that the additive package further comprises:(i) an extreme pressure anti-wear additive, or(ii) an anti-corrosion additive, or(iii) a friction modifier, or(iv) an acid scavenger, or(v) any combination of (i)-(iv).11. The lubricant composition ...

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Номер записи: 24

06-02-2014 дата публикации

Engine Lubricants Containing a Polyether

Номер: US20140038870A1

Автор: Mosier Patrick E., Vilardo Jonathan S.

Принадлежит: THE LUBRIZOL CORPORATION

A sump-lubricated, spark-ignited engine is lubricated by supplying thereto a lubricant which comprises (a) an oil of lubricating viscosity; (b) a polyether; and (c) a metal-containing detergent. The lubricant has a total phosphorus content of less than 0.075 percent by weight. 2. The method of wherein the polyether comprises a reaction product of one unit derived from a hydroxy-containing hydrocarbon and two or more units derived from an alkylene oxide claim 1 , wherein the hydroxy-containing hydrocarbon contains 1 to about 50 carbon atoms and the alkylene group of the alkylene oxide contains 2 to about 6 carbon atoms claim 1 , wherein the reaction product is optionally further reacted with acrylonitrile and hydrogenated to provide a terminal amino group.3. (canceled)4. The method of wherein the polyether comprises a polyetheramine.5. (canceled)6. The method of wherein the metal-containing detergent comprises a salicylate detergent.7. The method of wherein the salicylate detergent comprises an overbased calcium hydrocarbyl-substituted salicylate detergent.8. The method of wherein the salicylate detergent has a Total Base Number of about 120 to about 800 (oil free basis).9. The method of wherein the amount of the detergent is about 0.05 to about 1.5 percent by weight.10. The method of wherein the lubricant comprises a zinc dihydrocarbyldithiophosphate in an amount to contribute about 0.01 to about 0.06 weight percent phosphorus.11. The method of wherein the phosphorus content of the lubricant is about 0.01 to about 0.05 percent by weight.12. The method of wherein the sulfated ash level of the lubricant is less than about 0.80 percent.13. The method of wherein the lubricant further comprises an ashless antioxidant.15. The lubricant of wherein the polyether comprises a reaction product of one unit of a hydroxy-containing hydrocarbon and two or more units of an alkylene oxide claim 14 , wherein the hydroxy-containing hydrocarbon contains 1 to 50 carbon atoms and the ...

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Номер записи: 25

13-02-2014 дата публикации

DISPERSANT, DISPERSION, METHOD FOR ADJUSTING VISCOSITY OF DISPERSANT, MOBILE DEVICE, SURFACE TREATMENT AGENT, ELECTROLYTIC SOLUTION, SEPARATOR, AND RECHARGEABLE LITHIUM ION BATTERY

Номер: US20140045053A1

Автор: ICHIKAWA Satoshi, Oda Kazuhiro, YAO Shigeru

Принадлежит: Fukuoka University

A dispersant of the present invention is used after being added to a dispersant obtained by dispersing fine particles of a crystalline polymer as a dispersed particle and is characterized by containing a copolymer of a first monomer and a second monomer, the first monomer being a monomer that can be crystallized as a polymer having the molecular structure identical to that of the dispersed particle. 142-. (canceled)43. A method for the adjustment of a viscosity of a dispersion material containing fine particles of a crystalline polymer as a dispersed particle with a dispersant by changing a temperature of the dispersion material , wherein the dispersant comprises a copolymer of a first monomer with a second monomer , in which:the first monomer is a monomer crystallizable as a polymer having a molecular structure identical to the dispersed particle,the first monomer is one or more than one selected from:(A) ethylene;(B) a (meth)acrylate, a (meth)acrylamide, a vinylether, a vinylester, a siloxane, an α-olefine and a substituted styrene, each having a straight-chained alkyl side chain having at least eight carbon atoms;(C) a (meth)acrylate, a (meth)acrylamide, a vinylether, a vinylester, a siloxane, an α-olefine and a substituted styrene, each having an at least partially fluorinated straight-chained alkyl side chain having at least eight carbon atoms; and(D) polypropylene, andthe second monomer is one or more than one selected from:(E) a (meth)acrylate, a vinylether, a vinylester, a maleic ester, an itaconic ester, an acrylamide, and a substituted styrene, each having a straight-chained alkyl side chain having seven carbon atoms or less than seven carbon atoms;(F) a (meth)acrylate, a vinylether, a vinylester, a maleic ester, an itaconic ester, an acrylamide, and a substituted styrene, each having a branched alkyl side chain having seven carbon atoms or less than seven carbon atoms;(G) a (meth)acrylate, a vinylether, a vinylester, a maleic ester, an itaconic ester, and ...

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Номер записи: 26

27-02-2014 дата публикации

Use of block-copolymeric polyalkylene oxides as friction reducers in synthetic lubricants

Номер: US20140057819A1

Автор: Birgit Weinenkötter, Frank Schubert, Kirsten Schönemann, Peter Seidensticker, Rene Haensel, Thorsten Bartels

Принадлежит: Evonik Industries AG

The invention relates to the use of block copolymers containing at least a block of aromatic oxyalkylene groups and a block of nonaromatic oxyalkylene groups as friction-reducing additive and also compositions and lubricant formulations containing the block copolymers of the invention.

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Номер записи: 27

06-03-2014 дата публикации

LUBRICATION WITH OIL-COMPATIBLE POLYMER BRUSHES

Номер: US20140066343A1

Автор: Benetti Edmondo M., Bielecki Robert M., Spencer Nicholas D.

Принадлежит: The Swatch Group Research and Development Ltd

A polymer-brush-based, surface-modification strategy for friction and wear reduction in hard contact under boundary-lubrication conditions is proposed, specifically for a non-aqueous environment. Surface-initiated Atom Transfer Radical Polymerisation (SI-ATRP) was employed for the synthesis of three different oil-compatible, hydrophobic polymer brushes based on alkyl methacrylates. This study presents polymerisation kinetics, chemical characterization by means of Fourier transform infrared spectroscopy (FTIR) and surface morphologies observed in atomic force microscopy (AFM). The lubrication properties of the anchored polymers were evaluated macroscopically by means of ball-on-disk methods and on the nanonewton scale by lateral force microscopy (AFM/LFM) and showed significant reduction in friction up to contact pressures as high as 460 MPa. The frictional response of surface-grafted polymers is shown to depend strongly on the compatibility of the polymer with the chosen lubricating fluid. Their good tribological performances have also been proven with watchmaking lubricants. These results do make the prevent invention a suitable candidate for a watchmaking application (such as at the balance pivot or the escapement) in order to increase the efficiency and reliability of the movements. 1. A watch comprising a first substrate , a second substrate , and a low friction device that reduces a friction coefficient and wear of the first substrate against the second substrate , wherein at least one of the substrates is covered with the low friction device comprising a coating comprising polymer brushes swollen by a trapped solvent.2. The watch of claim 1 , wherein the polymer brushes comprise a hydrophobic alkyl-methacrylate.3. The watch of claim 2 , wherein the polymer brushes comprise dodecyl-methacrylate (P12MA).4. The watch of claim 1 , wherein the polymer brushes have a dry thickness of at least 250 nm.5. The watch of claim 1 , wherein the polymer brushes are grafted ...

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Номер записи: 28

20-03-2014 дата публикации

LUBRICATING OIL COMPOSITION

Номер: US20140080742A1

Автор: Miyamoto Hiroya, Yaguchi Akira

Принадлежит: JX NIPPON OIL & ENERGY CORPORATION

The present invention provides a lubricating oil composition for an internal combustion engine used mainly to drive a generator and to improve the fuel economy thereof. The composition comprises (A) a base oil being a hydrocarbon base oil having a ratio (CA/CB) of the proportion of the component of 24 or fewer carbon atoms (CA) and the proportion of the component of 25 or more carbon atoms (CB) in the carbon number distribution obtained by gas chromatography distillation of 2.0 or higher, the composition having a ratio (Vs/Vk) of the 80° C. high-temperature high-shear (HTHS) viscosity (Vk) and the 150° C. HTHS viscosity (Vs) of 0.4 or higher and a 100° C. kinematic viscosity of 5.2 mm/s or higher and 8 mm/s or lower. 1. A lubricating oil composition comprising (A) a base oil being a hydrocarbon base oil having a ratio (CA/CB) of proportion of component of 24 or fewer carbon atoms (CA) and proportion of component of 25 or more carbon atoms (CB) in a carbon number distribution obtained by gas chromatography distillation of 2.0 or higher , the composition having a ratio (Vs/Vk) of 80° C. high-temperature high-shear (HTHS) viscosity (Vk) and 150° C. HTHS viscosity (Vs) of 0.4 or higher and a 100° C. kinematic viscosity of 5.2 mm/s or higher and 8 mm/s or lower.2. The lubricating oil composition according to claim 1 , further comprising (B) a viscosity index improver having a ratio of weight-average molecular weight and PSSI of 1.2×10or greater.3. The lubricating oil composition according claim 1 , wherein the composition is an engine oil for a generator.4. The lubricating oil composition according claim 2 , wherein the composition is an engine oil for a generator. The present invention relates to lubricating oil compositions.Conventionally, lubricating oil has been used in an internal combustion engine, a transmission or other mechanical devices to allow the smooth operation thereof. In particular, a lubricating oil (engine oil) for an internal combustion engine is ...

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Номер записи: 29

27-03-2014 дата публикации

LUBRICANT COMPOSITIONS

Номер: US20140087980A1

Автор: Lanz Bret, Mitrovich Michael J., Molz Matt

Принадлежит:

Lubricant composition formulations comprising at least one biodegradable plastic, such as polyhydroxyalkanoate and/or polybutylene succinate, and at least one lubricant, such as a vegetable oil. 1. A biodegradable lubricant composition comprising:at least one biodegradable plastic;a lubricating oil component, wherein said lubricating oil component comprises a biodegradable oil; anda solid lubricant component.2. The biodegradable lubricant composition of claim 1 , wherein the biodegradable plastic comprises polyhydroxyalkanoate.3. The biodegradable lubricant composition of claim 1 , where the biodegradable plastic comprises polybutylene succinate.4. The biodegradable lubricant composition of claim 1 , wherein the biodegradable plastic comprises polyhydroxyalkanoate and polybutylene succinate.5. The biodegradable lubricant composition of claim 1 , wherein the biodegradable plastic comprises between about 50% and about 75% polyhydroxyalkanoate claim 1 , and between about 25% and about 50% polybutylene succinate.6. The biodegradable lubricant composition of claim 1 , comprising about 5% to about 28% of said biodegradable oil.7. The biodegradable lubricant composition of claim 6 , wherein the biodegradable oil comprises a vegetable oil.8. The biodegradable lubricant composition of claim 1 , wherein the solid lubricant comprises at least one of graphite and molybdenum disulfide.9. The biodegradable lubricant composition of claim 1 , comprising about 5% to about 50% of said solid lubricant component.10. The biodegradable lubricant composition of claim 1 , further comprising at least one additive.11. A lubricant composition comprising:at least one biodegradable plastic, wherein said at least one biodegradable plastic comprises polyhydroxyalkanoate, polybutylene succinate or mixtures thereof;a lubricating oil component, wherein said lubricating oil component comprises a biodegradable oil; anda solid lubricant component.12. The lubricant composition of claim 11 , wherein the ...

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Номер записи: 30

27-03-2014 дата публикации

LUBRICANT AND FUEL DISPERSANTS AND METHODS OF PREPARATION THEREOF

Номер: US20140087985A1

Автор: Bodige Satish, Brant Patrick, Chu John W., Crowther Donna Jean, Farng Liehpao Oscar, NG Man Kit, Patil Abhimanyu Onkar, Peretti Kathryn L.

Принадлежит: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY

This disclosure relates to a composition for use as an additive for fuels and lubricants including a reductive amination product of a vinyl terminated macromonomer (VTM) based aldehyde. Optionally aldehyde is reacted with the amino compound under condensation conditions sufficient to give an imine intermediate, and the imine intermediate is reacted under hydrogenation conditions sufficient to give the composition. The aldehyde is formed by reacting a VTM under hydroformylation conditions sufficient to form the aldehyde. A reductive amination method for making a composition for use as an additive for fuels and lubricants. The method includes reacting a VTM based aldehyde with an amino compound containing at least one —NH— group under condensation conditions sufficient to give an imine intermediate, and reacting the imine intermediate under hydrogenation conditions sufficient to give said composition. The aldehyde is formed by reacting a VTM under hydroformylation conditions sufficient to form the aldehyde. 1. A composition for use as an additive for fuels and lubricants comprising (i) a vinyl terminated macromonomer (VTM) based aldehyde or alcohol formed via hydroformylation or hydroformylation/hydrogenation followed by reductive amination , (ii) a VTM based aldehyde or alcohol formed via hydroformylation or hydroformylation/hydrogenation followed by reaction with an amine compound to obtain a Schiff's base or enamine and followed by hydrogenation of the Schiff's base or enamine , or (iii) an alkylamino substituted VTM formed via a single step aminomethylation of a VTM with syngas and an amine compound.2. The composition of wherein the aldehyde is formed by reacting a VTM under hydroformylation conditions sufficient to give said aldehyde claim 1 , and the alcohol is formed by reacting a VTM under hydroformylation conditions sufficient to give an aldehyde and reacting the aldehyde under hydrogenation conditions sufficient to give said alcohol.3. The composition of ...

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Номер записи: 31

04-01-2018 дата публикации

HYDROCARBON SOLVENT STABLE AQUEOUS POUR POINT DEPRESSANT DISPERSION COMPOSITION

Номер: US20180002626A1

Автор: Capaldo Kevin P., Dermody Daniel L., Potisek Stephanie L.

Принадлежит: Dow Global Technologies LLC

The present invention relates to an aqueous pour point depressant dispersion composition comprising an ethylene vinyl acetate copolymer (EVA); a dispersing agent; a polyethoxylated nonionic surfactant, a low level of hydrocarbon solvent, water; optionally one or more of an aqueous freezing point depressant, a stabilizing agent, or a basic metal substance and a method to use said composition. 2. The aqueous pour point depressant dispersion composition of wherein the average particle size of the dispersed EVA is equal to or less than 1 micrometer claim 1 , the amount of dispersing agent in the final composition is from 1 to 10 weight percent claim 1 , and the water:aqueous freezing point depressant mixture in the final composition is present in an amount of from 40 to 75 weight percent claim 1 , the water:aqueous freezing point depressant ratio is from 40:60 to 70:30.3. The aqueous pour point depressant dispersion composition of further comprising:(vii) a stabilizing agent in an amount of from 0.5 weight percent to 5 weight percent.4. The aqueous pour point depressant dispersion composition of wherein the polymer (i) is an ethylene vinyl acetate copolymer with 18 to 32 weight percent vinyl acetate and a melt index of 43 g/10 min determined according to ASTM D1238 at 190° C. and 2.16 kg.5. The aqueous pour point depressant dispersion composition of wherein the polymer (i) is an ethylene vinyl acetate copolymer with 32 weight percent vinyl acetate and a melt index of 43 g/10 min determined according to ASTM D1238 at 190° C. and 2.16 kg.6. The aqueous pour point depressant dispersion composition of wherein the dispersing agent (ii) comprises one or more of:{'sub': 1', '2', '1', '2, 'a a fatty acid/salt having the formula RCOORwherein Ris a straight chain, saturated or unsaturated, hydrocarbon radical of 8 to 25 carbon atoms and Ris H or a base-forming radical;'}b an alkyl, arene and/or alkylarene sulfonate;c a salt of a polymer of alkyl acrylate and/or alkyl methacrylate ...

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Номер записи: 32

03-01-2019 дата публикации

LOW VISCOSITY ENGINE OILS CONTAINING ISOMERIZED PHENOLIC-BASED DETERGENTS

Номер: US20190002784A1

Автор: Boffa Alexander Bowman, Campbell Curtis Bay, Kubo Koichi, Miller Brendan P., Miller John Robert, OHKUBO Hitoshi, Tanaka Isao, Ward Jacob Daniel

Принадлежит:

This disclosure generally relates to a lubricating oil composition having a HTHS viscosity at 150° C. in a range of about 1.3 to about 2.5 cP, comprising: (a) a major amount of an oil of lubricating viscosity having a kinematic viscosity at 100° C. in a range of 1.5 to 6.0 mm/s; and (b) an overbased metal salt of an alkyl-substituted detergent. 1. A lubricating oil composition having a HTHS viscosity at 150° C. in a range of about 1.3 to about 2.5 cP , comprising:{'sup': '2', '(a) a major amount of an oil of lubricating viscosity having a kinematic viscosity at 100° C. in a range of 1.5 to 6.0 mm/s; and'}(b) an overbased metal salt of an alkyl-substituted phenolic-based detergent, wherein the alkyl group is derived from an isomerized normal alpha olefin having from about 10 to about 40 carbon atoms per molecule having an isomerization level (I) of the normal alpha olefin of from about 0.1 to about 0.4.2. The lubricating oil composition of claim 1 , wherein the alkyl-substituted phenolic-based detergent is selected from the group consisting of a non-sulfur containing phenate claim 1 , sulfur-containing phenate claim 1 , a naphthenate claim 1 , a complex detergent claim 1 , a salixarate claim 1 , a salicylate claim 1 , a saligenin claim 1 , a calixarene claim 1 , sulfur-bridged alkylphenols claim 1 , alkylene-bridged alkylphenols claim 1 , and mixtures thereof.3. The lubricating oil composition of wherein the alkyl-substituted phenolic-based detergent is a carboxylate or a salicylate detergent claim 1 , wherein the alkyl group is derived from an isomerized alpha olefin having from about 10 to about 40 carbon atoms per molecule having an isomerization level (I) of the normal alpha olefin of from about 0.1 to 0.4.4. The lubricating oil composition of wherein the alkyl-substituted phenolic-based detergent is an isomerized olefin phenate detergent claim 1 , wherein the alkyl group is derived from an isomerized alpha olefin having from about 10 to about 40 carbon atoms per ...

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Номер записи: 33

03-01-2019 дата публикации

LUBRICANT COMPOSITION COMPRISING BRANCHED DIESTERS AND VISCOSITY INDEX IMPROVER

Номер: US20190002785A1

Автор: BENARD Francois, Champagne Nicholas, SANSON Julien

Принадлежит: TOTAL MARKETING SERVICES

The invention refers to lubricant compositions comprising a specific diester together with a viscosity index improver. 2. Lubricant composition of claim 1 , wherein in the formula (I): n is 1;the total amount of carbon atoms being more than 15 and less than 40.3. Lubricant composition of claim 1 , wherein in the formula (I):R1 represents a linear or branched, saturated or unsaturated C5-C15 a Iky I group;R′ represents a linear or branched, saturated or unsaturated C3-C8 a Iky I group; R represents a linear or branched, saturated or unsaturated C1-C15 alkyl group.4. Lubricant composition according to claim 1 , wherein in the compound of formula (I) claim 1 ,R1 represents a saturated linear C5-C15 alkyl group, more preferably a saturated linear C5-C12 alkyl group; R′ represents a saturated linear C3-C8 alkyl group, more preferably a saturated linear C5-C8 alkyl group;R represents a saturated linear or branched C5-C15 alkyl group, more preferably a saturated linear or branched C5-C10 alkyl group.5. Lubricant composition according to claim 1 , wherein in the formula (I):R1 represents a saturated linear C5-C10 alkyl group, more preferably a saturated linear C5-C8 alkyl group;R′ represents a saturated linear C5-C8 alkyl group;R represents a saturated, linear or branched C5-C10 alkyl group, preferably a saturated linear C5-C10 alkyl group.7. Lubricant composition according to claim 1 , wherein in the formula (I):R1 represents a saturated linear or branched C5-C 5 alkyl group, more preferably a saturated linear C8-C12 alkyl group;R′ represents a saturated linear C5-C8 alkyl group;R represents a saturated, linear or branched C5-C10 alkyi group, preferably a saturated branched C5-C10 alkyl group.9. Lubricant composition according to claim 1 , wherein the viscosity index improver is a polymeric viscosity index improver claim 1 , preferably chosen among: polyacrylates and polymethacrylates claim 1 ,olefin homopolymers or copolymers, preferably ethylene/propylenestyrene ...

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Номер записи: 34

03-01-2019 дата публикации

BRANCHED DIESTERS FOR USE TO REDUCE THE FUEL CONSUMPTION OF AN ENGINE

Номер: US20190002790A1

Автор: Benard Francios, Champagne Nicholas, SANSON Julien

Принадлежит: TOTAL MARKETING SERVICES

The invention refers to use of lubricant compositions comprising a specific diester and additives to reduce the fuel consumption of an engine. 2. Method according to claim 1 , wherein in the formula (I):n is 1;the total amount of carbon atoms being more than 15 and less than 40.3. Method according according to claim 1 , wherein in the formula (I) claim 1 ,R1 represents a linear or branched, saturated or unsaturated C5-C15 alkyl group;R′ represents a linear or branched, saturated or unsaturated C3-C8 alkyl group; R represents a linear or branched, saturated or unsaturated C1-C15 alkyl group.4. Method according according to claim 1 , wherein in the formula (I) claim 1 ,R1 represents a saturated linear C5-C15 alkyl group, more preferably a saturated linear C5-C12 alkyl group;R′ represents a saturated linear C3-C8 alkyl group, more preferably a saturated linear C5-C8 alkyl group;R represents a saturated linear or branched C5-C15 alkyl group, more preferably a saturated linear or branched C5-C10 alkyl group.5. Method according according to claim 1 , wherein in the formula (I) claim 1 ,R1 represents a saturated linear C5-C10 alkyl group, more preferably a saturated linear C5-C8 alkyl group;R′ represents a saturated linear C5-C8 alkyl group;R represents a saturated, linear or branched C5-C10 alkyl group, preferably a saturated linear C5-C10 alkyl group.7. Method according to claim 1 , wherein in the formula (I):R1 represents a saturated linear or branched C5-C15 alkyl group, more preferably a saturated linear C8-C12 alkyl group;R′ represents a saturated linear C5-C8 alkyl group;R represents a saturated, linear or branched C5-C10 alkyl group, preferably a saturated branched C5-C10 alkyl group.9. Method according to claim 1 , wherein the lubricant composition comprises from 0.1 to 50% claim 1 , preferably from 1 to 50% claim 1 , more preferably from 5 to 30% by weight based on the total weight of lubricant composition claim 1 , of a compound of formula (I).10. Method ...

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Номер записи: 35

03-01-2019 дата публикации

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

Номер: US20190002794A1

Автор: ANZAI Hisao, KASAI Moritsugu, KURODA Norihiro

Принадлежит: IDEMITSU KOSAN CO., LTD.

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

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Номер записи: 36

13-01-2022 дата публикации

LUBRICATING COMPOSITIONS COMPRISING A NON-SILICONE ANTI-FOAMING AGENT

Номер: US20220010228A1

Автор: Collett Brian R., Docter Michelle, Heater Kenneth J., Sanders Joseph, Theys Angela

Принадлежит: METSS Corp.

Lubricating compositions are described, the lubricating compositions comprising a base oil component and an additive component, wherein the additive component comprises a non-silicone anti-foaming agent. 1. A lubricating composition , comprising:a base oil component, comprising: a polyalphaolefin (“PAO”), a mineral oil, or both, and comprising from about 95% to about 99.5% w/w of the lubricating composition; andan additive component, comprising: a non-silicone anti-foaming agent, an anti-wear agent, an aryl amine antioxidant agent, a metal deactivating agent, and an anti-rust agent, and comprising from about 0.5% to about 5% w/w of the lubricating composition.2. The lubricating composition of claim 1 , wherein the base oil component comprises from about 80% to about 90% of a first PAO having a kinematic viscosity of about 10 centiStokes at 100° C. and from about 10% to about 15% of a second PAO having a kinematic viscosity of about 40 centiStokes at 100° C.3. The lubricating composition of claim 1 , wherein the non-silicone anti-foaming agent comprises a polyacrylate polymer.4. The lubricating composition of claim 1 , wherein the non-silicone anti-foaming agent comprises from about 0.01% to about 0.1% w/w of the lubricating composition.5. The lubricating composition of claim 1 , wherein the anti-wear agent is selected from the group consisting of: a C-Calkylated triarylphosphate claim 1 , a C-Calkyl phosphate claim 1 , a diarylether phosphate ester claim 1 , a diarylether phosphate diester diphosphate claim 1 , and mixtures thereof.6. The lubricating composition of claim 1 , wherein the anti-wear agent comprises from about 0.05% to about 2% w/w of the lubricating composition.7. The lubricating composition of claim 1 , wherein the aryl amine antioxidant comprises a phenyl alpha naphthyl amine claim 1 , an alkylated phenyl alpha naphthyl amine claim 1 , or a mixture thereof.8. The lubricating composition of claim 1 , wherein the aryl amine antioxidant comprises from ...

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Номер записи: 37

12-01-2017 дата публикации

THERMOASSOCIATIVE AND EXCHANGEABLE COPOLYMERS, AND COMPOSITIONS COMPRISING SAME

Номер: US20170008989A1

Автор: DEVES Lise, NGUYEN Thi Hang Nga, NICOLAY Renaud

Принадлежит:

A composition results from the mixture of at least one copolymer A resulting from the copolymerisation of at least one monomer functionalised by diol functions and at least one compound A2 comprising at last two boronic ester functions. They have rheological properties which are very varied according to the proportion of the A1 and A2 compounds used. The field is that of associative and exchangeable polymers. 2. The composition according to claim 1 , in which the statistical copolymer A1 results from the copolymerization of at least one monomer M1 with at least two monomers M2 having different R3 groups.4. The composition according to claim 1 , in which the side chains of the statistical copolymer A1 have an average length ranging from 8 to 20 carbon atoms.5. The composition according to claim 1 , in which the statistical copolymer A1 has a molar percentage of monomer M1 of formula (I) in the copolymer ranging from 1 to 30%.6. The composition according to claim 1 , in which the statistical copolymer A1 has a number-average degree of polymerization ranging from 100 to 2000.7. The composition according to claim 1 , in which the statistical copolymer A1 has a polydispersity index (PDI) ranging from 1.05 to 3.75.10. The composition according to claim 9 , in which the chain formed by the sequence of the R claim 9 , M claim 9 , X and (R)groups with u equal to 0 or 1 of the monomer of general formula (IV) has a total number of carbon atoms ranging from 8 to 38.11. The composition according to claim 9 , in which the side chains of the copolymer A2 have an average length greater than or equal to 8 carbon atoms.12. The composition according to claim 9 , in which the copolymer A2 has a molar percentage of monomer of formula (IV) in the copolymer ranging from 0.25 to 20%.13. The composition according to claim 9 , in which the copolymer A2 has a number-average degree of polymerization ranging from 50 to 1500.14. The composition according to claim 9 , in which the copolymer A2 ...

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Номер записи: 38

12-01-2017 дата публикации

LUBRICATING COMPOSITIONS COMPRISING THERMOASSOCIATIVE AND EXCHANGEABLE COPOLYMERS

Номер: US20170009176A1

Автор: ILIOPOULOS Ilias, IOVINE Raphaele, NGUYEN Thi Hang Nga, NICOLAY Renaud

Принадлежит:

A composition results from the mixture of at least one lubricating oil, at least one statistical copolymer A1, and at least one compound A2 including at least two boronic ester functions; the statistical copolymer A1 resulting from the copolymerisation of at least a first monomer M1 having diol functions and at least a second monomer M2 having a different chemical structure from that of the M1 monomer. The composition lubricates a mechanical part. The field is that of lubricants. 2. The composition according to claim 1 , in which statistical copolymer A1 results from the copolymerization of at least one monomer M1 with at least two monomers M2 having different Rgroups.6. The composition according to claim 5 , in which the chain formed by the sequence of R10 claim 5 , M claim 5 , X and (R)groups with u equal to 0 or 1 of the monomer of general formula (IV) has a total number of carbon atoms comprised between 8 and 38.7. The composition according to claim 5 , in which the side chains of the copolymer A2 have an average length greater than 8 carbon atoms.8. The composition according to claim 5 , in which the statistical copolymer A2 has a molar percentage of monomer of formula (IV) in the copolymer ranging from 0.25 to 20%.9. The composition according to claim 5 , in which the statistical copolymer A2 has a number-average degree of polymerization ranging from 50 to 1500.10. The composition according to claim 1 , in which the side chains of the statistical copolymer A1 have a average length ranging from 8 to 20 carbon atoms.11. The composition according to claim 1 , in which the statistical copolymer A1 has a molar percentage of monomer M1 of formula (I) ranging in said copolymer from 1 to 30%.12. The composition according to claim 1 , in which the statistical copolymer A1 has an average degree of polymerization ranging from 100 to 2000.13. The composition according to claim 1 , in which the lubricating oil is selected from the oils of Group I claim 1 , Group II claim 1 ...

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Номер записи: 39

12-01-2017 дата публикации

LUBRICATING COMPOSITION

Номер: US20170009180A1

Автор: Chen Cheng, SOUTHBY Mark Clift, XU Zhou

Принадлежит:

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

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Номер записи: 40

09-01-2020 дата публикации

VINYL-BASED COMB POLYMER

Номер: US20200010775A1

Автор: Ikari Yoshihiro

Принадлежит: KANEKA CORPORATION

A vinyl-based comb copolymer includes a polyisobutylene-based macromonomer unit and a vinyl-based monomer unit. A polyisobutylene-based macromonomer has at least 0.8 (meth)acryloyl groups represented by a specific formula at one end of a main chain per molecule, and is copolymerized with a vinyl-based monomer. A method for producing the vinyl-based comb copolymer includes copolymerizing the polyisobutylene-based macromonomer with the vinyl-based monomer. A viscosity index improver includes the comb copolymer. A lubricating oil composition includes the comb copolymer. 2. The vinyl-based comb copolymer according to claim 1 , wherein the vinyl-based comb copolymer contains 0.05 to 20 mol % of a polyisobutylene-based macromonomer unit.3. The vinyl-based comb copolymer according to claim 1 , wherein a molecular weight distribution (Mw/Mn) of the polyisobutylene-based macromonomer ranges from 1.0 to 1.8.4. The vinyl-based comb copolymer according to claim 1 , wherein a number-average molecular weight (Mn) of the polyisobutylene-based macromonomer ranges from 1 claim 1 ,000 to 200 claim 1 ,000 as a value obtained by size exclusion chromatography (SEC) measurement based on polystyrene standards.5. The vinyl-based comb copolymer according to claim 1 , wherein Rin the general formula (1) is at least one divalent hydrocarbon group selected from the group consisting of —CHCH— claim 1 , —CHCHCH— claim 1 , and —CHCHCHCH—.6. The vinyl-based comb copolymer according to claim 1 , wherein Rand Rin the general formula (1) are each hydrogen.7. The vinyl-based comb copolymer according to claim 1 , wherein Rin the general formula (1) is a methyl group.9. A method for producing the vinyl-based comb copolymer according to claim 1 , the method comprising copolymerizing the polyisobutylene-based macromonomer with the vinyl-based monomer.10. A viscosity index improver containing the comb copolymer according to .11. A lubricating oil composition containing the comb copolymer according to . One ...

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Номер записи: 41

18-01-2018 дата публикации

POLYESTER DISPERSANTS, SYNTHESIS AND USE THEREOF

Номер: US20180016513A1

Автор: JR. William Raymond, Ruhe

Принадлежит:

A polyester composition, suitable for use as a dispersant in lubricating oils, is disclosed. The polyester composition is prepared by reacting (a) an acylating agent selected from an aliphatic-substituted succinic acylating agent, an aromatic polycarboxylic acylating agent, and combinations thereof; and (b) a hydroxyalkyl-substituted tertiary amine compound of the following structure: 2. The composition of claim 1 , wherein the aliphatic-substituted succinic acylating agent is selected from one or more of dodecenyl succinic anhydride claim 1 , hexadecenyl succinic anhydride claim 1 , and octadecenyl succinic anhydride claim 1 , and polyisobutenyl succinic anhydride.3. The composition of claim 1 , wherein the aromatic polycarboxylic acylating agent is selected from one or more of phthalic acid claim 1 , phthalic anhydride claim 1 , isophthalic acid claim 1 , terephthalic acid claim 1 , trimellitic acid claim 1 , trimellitic anhydride claim 1 , pyromellitic acid claim 1 , pyromellitic dianhydride claim 1 , 1 claim 1 ,8-naphthalic anhydride claim 1 , 2 claim 1 ,3-naphthalic anhydride claim 1 , and 2 claim 1 ,3 claim 1 ,7 claim 1 ,8-naphthalic dianhydride.4. The composition of claim 1 , wherein R′ is a Calkyl group.5. The composition of claim 1 , wherein R in each of the x (RO) and y (RO) groups is ethylene and R in each of the z (RO) groups is propylene.6. The composition of claim 1 , wherein x+y is in the range of 2 to 5.7. The composition of claim 1 , wherein z is in the range of 2 to 3.8. A lubricating oil additive concentrate comprising from 80 to 20 wt. % of an organic liquid diluent and from 20 to 80 wt. % of the polyester composition of .9. A lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity and (b) from 0.05 to 15 wt. % claim 1 , based on the total weight of the lubricating oil composition claim 1 , of the polyester composition of .10. The lubricating oil composition of claim 9 , further comprising an additive selected ...

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Номер записи: 42

18-01-2018 дата публикации

LUBRICATING OIL COMPOSITION

Номер: US20180016518A1

Автор: KANEKO Masato

Принадлежит: IDEMITSU KOSAN CO., LTD.

A lubricating oil composition according to one embodiment of the present invention contains an oxygen-containing synthetic base oil having an oxygen content (A) of from 15 to 40 mass % and a kinetic viscosity at 100° C. of from 0.5 to 50 mm/s, and a viscosity index improver that is an oxygen-containing compound having an oxygen content (B) of from 15 to 40 mass % and a kinetic viscosity at 100° C. of 11,000 mm/s or more, a mass ratio of the oxygen-containing synthetic base oil and the viscosity index improver being from 99.5:0.5 to 75:25, and a ratio (A/B) of the oxygen content (A) of the oxygen-containing synthetic base oil to the oxygen content (B) of the viscosity index improver being in a range of from 0.5 to 2. 1. A lubricating oil composition , comprising:{'sup': '2', 'an oxygen-containing synthetic base oil having an oxygen content (A) of from 15 to 40 mass % and a kinetic viscosity at 100° C. of from 0.5 to 50 mm/s; and'}{'sup': '2', 'a viscosity index improver that is an oxygen-containing compound having an oxygen content (B) of from 15 to 40 mass % and a kinetic viscosity at 100° C. of 11,000 mm/s or more,'}wherein:a mass ratio of the oxygen-containing synthetic base oil and the viscosity index improver is from 99.5:0.5 to 75:25; anda ratio (AB) of the oxygen content (A) of the oxygen-containing synthetic base oil to the oxygen content (B) of the viscosity index improver ranges from 0.5 to 2.2. The lubricating oil composition according to claim 1 , wherein the viscosity index improver is at least one oxygen-containing compound selected from the group consisting of a polyvinyl ether compound claim 1 , a polyoxyalkylene glycol compound claim 1 , and a copolymer having a structure of a poly(oxy)alkylene glycol or a monoether thereof and a polyvinyl ether.3. The lubricating oil composition according to claim 2 , wherein the viscosity index improver is a polyoxyalkylene glycol compound.4. The lubricating oil composition according to claim 1 , wherein the oxygen ...

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Номер записи: 43

17-01-2019 дата публикации

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

Номер: US20190016987A1

Автор: CSIHONY Szilard, Dery Mary Elizabeth, Fenton Ryan James, Rabbat Philippe

Принадлежит:

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 , ...

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Номер записи: 44

21-01-2021 дата публикации

HYPERBRANCHED POLYETHERS AND THEIR USE, ESPECIALLY AS POUR POINT DEPRESSANT AND WAX INHIBITORS

Номер: US20210017341A1

Автор: Bohres Edward, FRENZEL Stefan, KIERAT Radoslaw, LINDNER Jean-Pierre Berkan

Принадлежит:

The present invention relates to a hyperbranched polyether of formula (I) RQ-0-R(I), wherein Q is a branching unit of formula, n is 2−1, m is 2, k is 2, 3, 4, 5 or 6, each R is independently a hydrocarbon radical having at least 10 carbon atoms, Ris a polymer having a number average molecular weight Mof at least 250 g/mol, wherein each branching unit Q is connected via ether linkage to adjacent branching units Q and each terminal oxygen of Q, not connected to adjacent branching units Q, is connected to R via ether linkage, as well as mixtures thereof. The present invention further relates to formulations comprising said hyperbranched polyether or mixture of ethers as well as their use. 2. The hyperbranched polyether of claim 1 , wherein k is 2 or 3.3. The hyperbranched polyether of claim 1 , wherein R is a hydrocarbon radical having 10 to 48 carbon atoms.4. The hyperbranched polyether claim 1 , wherein R is an alkyl group.5. The hyperbranched polyether of claim 1 , wherein R is an unbranched alkyl group.6. The hyperbranched polyether of claim 1 , wherein Ris a polymer having a number average molecular weight Min the range from 250 g/mol to 20000 g/mol.7. The hyperbranched polyether of claim 1 , wherein Ris connected to the oxygen in formula (I) via ester or carbamate group.8. The hyperbranched polyether of claim 1 , wherein Rcomprises an alkylene chain of at least 10 chain carbon atoms.9. The hyperbranched polyether of claim 8 , wherein Rcomprises —CHC(CH)— repeating units.10. The hyperbranched polyether of claim 1 , wherein Rcomprises alkyleneoxy repeating units.11. The hyperbranched polyether of claim 10 , wherein Rcomprises ethyleneoxy and/or propyleneoxy repeating units.12. The hyperbranched polyether of claim 10 , wherein Rcomprises 5 to 200 repeating units.13. A mixture of hyperbranched polyethers of .14. A formulation comprising the hyperbranched polyether of and a solvent.15. A lubricating oil composition comprising(a) at least one base oil component,{'claim ...

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Номер записи: 45

21-01-2021 дата публикации

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

Номер: US20210017466A1

Автор: Bohres Edward, FRENZEL Stefan, Fu Xiao, KIERAT Radoslaw, MUELLER-CRISTADORO Anna Maria, NOACK Tina, WESTERHAUS Felix Alexander

Принадлежит:

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

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Номер записи: 46

16-01-2020 дата публикации

Polyacrylate Antifoam Components With Improved Thermal Stability

Номер: US20200017793A1

Автор: Adams Tina M., Barton William R.S., Dickerson David M., Dishong Dennis M., Hughes Kevin J., Huston Michael E., Joniec Christopher H., Knobloch Donald J., Kovach Rochelle L., Schiferl Elizabeth A.

Принадлежит:

There is disclosed an antifoam component for a mechanical device which includes a poly(acrylate) copolymer. The antifoam component has improved thermal stability in finished fluids utilizing dibutyl hydrogen phosphite compounds, such as driveline fluids. 2. The lubricating composition of claim 1 , further comprising a phosphorous-containing component.3. The lubricating composition of claim 2 , wherein the phosphorous-containing component comprises one or more of a phosphite claim 2 , a phosphorus-containing amide claim 2 , a phosphorus-containing carboxylic acid or ester claim 2 , a phosphorus-containing ether claim 2 , and mixtures and derivatives thereof.4. The lubricating composition of claim 1 , wherein the acrylate monomer (i) is present in an amount of about 80 wt % claim 1 , or about 85 wt % claim 1 , and the comonomer (ii) is present in an amount of about 15 wt % claim 1 , or about 20 wt %.5. The lubricating composition of claim 1 , wherein the acrylate monomer (i) comprises C6-C8 alkyl esters of acrylic acid.6. The lubricating composition of claim 1 , wherein the acrylate monomer (i) comprises 2-ethylhexyl acrylate.7. The lubricating composition of claim 1 , wherein the comonomer (ii) comprises ethyl acrylate or propyl acrylate.8. The lubricating composition of claim 1 , wherein the acrylate monomer (i) is 2-ethylhexyl acrylate and the comonomer (ii) is ethyl acrylate.9. The lubricating composition of claim 8 , wherein the acrylate monomer (i) is present in an amount of 85 wt % and the comonomer (ii) is present in an amount of 15 wt %.10. The lubricating composition of claim 1 , wherein the antifoam component has a Mof from 22 claim 1 ,000 to 27 claim 1 ,000 Da.11. The lubricating composition of claim 1 , wherein the antifoam component is present in the lubricating composition in an amount from 50 ppm to about 600 ppm.12. The lubricating composition of claim 1 , further comprising at least one further additive selected from the group consisting of ...

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Номер записи: 47

16-01-2020 дата публикации

FLUORINATED POLYACRYLATE ANTIFOAM COMPONENTS FOR LUBRICATING COMPOSITIONS

Номер: US20200017794A1

Автор: Barton William R.S., Dishong Dennis M., Hughes Kevin J., Huston Michael E., Knobloch Donald J., Nickerson David M.

Принадлежит:

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

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Номер записи: 48

28-01-2016 дата публикации

The Use Of Polyalkoxylates In Lubricant Compositions

Номер: US20160024412A1

Автор: ECORMIER Muriel, FISCHER Claudia, HANSCH Markus, Kashani-Shirazi Nawid, Weiss Thomas

Принадлежит:

Provided are polyalkoxylates that are prepared by alkoxylating polytetrahydrofurane with butylene oxide for use in lubricant compositions and/or for reducing friction in a driveline. 3. The method of claim 1 , wherein m is an integer in the range of ≧7 to ≦35 claim 1 , p is an integer in the range of ≧7 to ≦35 and (m+p) is an integer in the range of ≧15 to ≦65.4. The method of claim 1 , wherein the ratio of (m+p) to n is in the range of 3:1 to 20:1.5. The method of claim 1 , wherein n is an integer in the range of ≧3 to ≦20.6. The method of claim 1 , wherein the polyalkoxylate has a weight average molecular weight Mw in the range of 900 to 20000 g/mol determined according to DIN55672-1 (polystyrene calibration standard).8. The method according to claim 7 , wherein the at least one catalyst is a base or a double metal cyanide catalyst.9. The method of further comprising adding the one or more basestocks or the additives to the polyakoxylate to form the lubricant composition.11. The lubricant composition according to further comprising at least one base stock selected from the group consisting of mineral oils (Group I claim 10 , II or III oils) claim 10 , polyalphaolefins (Group IV oils) claim 10 , polymerized and interpolymerized olefins claim 10 , alkyl naphthalenes claim 10 , alkylene oxide polymers claim 10 , silicone oils claim 10 , phosphate esters and carboxylic acid esters (Group V oils) claim 10 ,and one or more additives.12. The lubricant composition according to claim 10 , which is effective for light claim 10 , medium and heavy duty engine oils claim 10 , industrial engine oils claim 10 , marine engine oils claim 10 , automotive engine oils claim 10 , crankshaft oils claim 10 , compressor oils claim 10 , refrigerator oils claim 10 , hydrocarbon compressor oils claim 10 , very low-temperature lubricating oils and fats claim 10 , high temperature lubricating oils and fats claim 10 , wire rope lubricants claim 10 , textile machine oils claim 10 , refrigerator ...

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Номер записи: 49

28-01-2016 дата публикации

LUBRICATING COMPOSITION

Номер: US20160024418A1

Автор: DIXON Richard Thomas, HUNT Gillian Elizabeth

Принадлежит:

The present invention provides a lubricating composition comprising: (i) a base oil; (ii) a non-silicone anti-foam agent; and (iii) one or more performance additives; wherein the composition has a kinematic viscosity at 100° C. (according to ASTM D445) of 16.3 mm/s or less, a low temperature cranking viscosity of at most 6600 cP at −30° C. (ASTM D5293) and a NOACK volatility of at most 11% according to CEC-L-40-93. 1. A lubricating composition comprising:(i) a base oil;(ii) a non-silicone anti-foam agent; and(iii) one or more performance additives;{'sup': '2', 'wherein the composition has a kinematic viscosity at 100° C. (according to ASTM D445) of 16.3 mm/s or less, a low temperature cranking viscosity of at most 6600 cP at −30° C. (ASTM D5293) and a NOACK volatility of at most 11% according to CEC-L-40-93.'}2. Lubricating composition according to claim 1 , wherein the composition has a NOACK volatility of at most 10.5% according to CEC-L-40-93.3. Lubricating composition according to claim 1 , wherein the non-silicone anti-foam agent is selected from acrylate claim 1 , polyacrylate claim 1 , and polymethacrylate (PMA) polymers.4. Lubricating composition according to claim 1 , wherein the non-silicone anti-foam agent is present at a level of from 10 ppm to 500 pm claim 1 , by weight of the composition.5. Lubricating composition according to claim 1 , wherein the base oil comprises one or more Fischer-Tropsch derived base oils.6. Lubricating composition according to claim 5 , wherein the base oil comprises 80% or greater of one or more Fischer-Tropsch derived base oils claim 5 , by weight of the base oil.7. Lubricating composition according to claim 1 , wherein the composition is essentially free of polyalphaolefin base oil.8. Lubricating composition according to claim 1 , wherein the one or more performance additives comprises a silicone-based anti-foam agent.9. (canceled)10. (canceled)11. A method of lubrication comprising applying a lubricating composition to a ...

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Номер записи: 50

17-04-2014 дата публикации

FUEL OIL COMPOSITIONS WITH IMPROVED COLD FLOW PROPERTIES

Номер: US20140107005A1

Автор: Ahlers Wolfgang, Eisenbeis Ansgar, Fechtenkoetter Andreas, Maehling Frank-Olaf, Troetsch-Schaller Irene

Принадлежит: BASF SE

The use is described of polymers which contain, in copolymerized form, an α-olefin, a vinyl ester and an ester of an α,β-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. En addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described. 1: A polymer , comprising , in copolymerized form:an α-olefin,a vinyl ester, andan ester of an α,β-unsaturated carboxylic acid,wherein the polymer is suitable as an additive for a fuel oil, a lubricant, or any combination thereof.2: The polymer according to claim 1 , wherein the vinyl ester and the ester of an α claim 1 ,β-unsaturated carboxylic acid are copolymerized in random distribution.4: The polymer according to claim 3 ,wherein a molar proportion of M1 is from 0.60 to 0.98,a molar proportion of M2 is from 0.01 to 0.20; anda molar proportion of M3 is from 0.01 to 0.20.5: The polymer according to claim 3 , wherein monomer M1 is ethylene.6: The polymer according to claim 3 , wherein R claim 3 , R claim 3 , and Rare each H claim 3 , or two of R claim 3 , R claim 3 , and Rare each H and the other is methyl.7: The polymer according to claim 3 , wherein Ris C-C-hydrocarbyl.8: The polymer according to claim 7 , wherein Ris n-butyl or 2-ethylhexyl.9: The polymer according to claim 6 , wherein M2 is n-butyl acrylate or 2-ethylhexyl acrylate.10: The polymer according to claim 3 , wherein M3 is vinyl acetate.11: The polymer according to claim 1 , wherein the polymer is suitable as a cold flow improver.12: A fuel oil composition claim 1 , comprising:a major proportion by weight of a middle distillate fuel having a boiling point of from 120 to 500° C., and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a small proportion by weight of the polymer of .'}13: The fuel oil composition according to claim 12 , wherein the middle distillate fuel comprises biodiesel from animal or vegetable ...

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Номер записи: 51

26-01-2017 дата публикации

AN AQUEOUS LUBRICANT COMPOSITION, A METHOD FOR MAKING THE SAME AND USES THEREOF

Номер: US20170022445A1

Автор: Grahn Mattias, Larsson Roland, Shi Yijun

Принадлежит:

The disclosure concerns an aqueous lubricant composition, characterized in that it comprises of: 50 wt % of water, 0.01-20 wt % of a thickening agent, 0.5-10 wt % of an antioxidant; 0.5-5 wt % of a pH regulating agent; and glycerol. There is also provided a method for manufacturing the aqueous lubricant composition, and uses of said aqueous lubricant composition. 1. An aqueous lubricant composition , characterized in that it comprises:5-50 wt % of water,0.01-20 wt % of a thickening agent,0.5-10 wt % of an antioxidant,0.5-5 wt % of a pH regulating agent, andglycerol.2. The aqueous lubricant composition according to claim 1 ,characterized in that it is biodegradable and the amount of glycerol is from 15 to 93.99 wt %.3. The aqueous lubricant composition according to claim 2 , characterized in that it consists essentially of:5-50 wt % of water,0.01-20 wt % of a thickening agent,0.5-10 wt % of an antioxidant,0.5-5 wt % of a pH regulating agent, andglycerol as balance.4. The aqueous lubricant composition according to claim 2 , characterized in that it consists of:5-50 wt % of water,0.01-20 wt % of a thickening agent,0.5-10 wt % of an antioxidant,0.5-5 wt % of a pH regulating agent, andglycerol as balance.5. (canceled)6. The aqueous lubricant composition according to claim 2 , characterized in that the amount of water is from 5 to 40 wt %.7. The aqueous lubricant composition according to claim 2 , characterized in that the amount of the thickening agent is from 0.01 to 10 wt %.8. The aqueous lubricant composition according to claim 2 , characterized in that the amount of the antioxidant is from 3 to 10 wt %.9. The aqueous lubricant composition according to claim 2 , characterized in that the amount of the pH regulating agent is from 0.5 to 3 wt %.10. The aqueous lubricant composition according to claim 2 , characterized in that the thickening agent is selected from the group consisting of: chitin claim 2 , chitosan claim 2 , dextrin claim 2 , cellulose claim 2 , starch ...

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Номер записи: 52

10-02-2022 дата публикации

Phosphorylated Dispersants in Fluids for Electric Vehicles

Номер: US20220041951A1

Автор: Adachi Tsuneo, Adhvaryu Atanu, Cleveland Christopher, Mitsui Hideaki, Schmid Lesley

Принадлежит:

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

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Номер записи: 53

24-01-2019 дата публикации

AQUEOUS POLYMER DISPERSIONS, A METHOD FOR THEIR PREPARATION AND THE USE THEREOF AS POUR-POINT DEPRESSANTS FOR CRUDE OIL, PETROLEUM, AND PETROLEUM PRODUCTS

Номер: US20190024011A1

Автор: Bohres Edward, BRAEUER Judith Christine, FRENZEL Stefan, Gumlich Kai, JACKSON Jennifer Anne, SOCHER Maria

Принадлежит:

The invention relates to aqueous polymer dispersions comprising at least one polymer obtainable by the reaction of at least one monomer M1 of the general formula HC═CH—C(O)OR (I), wherein R is an unbranched alkyl chain comprising from 18 to 22 carbon atoms, and optionally at least one monomer M2. The invention relates moreover to a method for the preparing of such aqueous polymer dispersion and the use thereof as pour point depressant for crude oil, petroleum, and petroleum products. 115.-. (canceled)16. An aqueous polymer dispersion comprising [ {'br': None, 'sub': '2', 'HC═CH—C(O)OR\u2003\u2003(I)'}, '50 to 100% by weight of at least one monomer M1 of the general formula (I)'}, 'wherein R is an unbranched alkyl chain comprising from 18 to 22 carbon atoms; and', '0 to 50% by weight of at least one monomer M2, which is different from monomer M1;, 'a) 10 to 55% by weight based on the dispersion of at least one polymer P obtainable by the reaction of reactive monomers M, wherein the reactive monomers M comprise'}wherein the amounts of the monomers M1 and M2 are each based on the total amount of all reactive monomers M used in the reaction,{'sub': 'w', 'wherein the polymer P has a weight-average molecular weight Mof 20,000 to 150,000 g/mol according to DIN 55672-1:1995-02; and'}{'sub': '50', 'wherein the polymer P is present in the form of particles having an average particle size dof from 75 nm to 400 nm effected by Column Hydrodynamic Chromatography;'}b) 0 to 24.5% by weight based on the total amount of the aqueous polymer dispersion of at least one with water miscible solvent,c) 0 to 30% by weight based on the total amount of the aqueous polymer dispersion of at least one hydrophobic organic solvent, 15 to 30% by weight of acrylic acid, methacrylic acid, or a mixture thereof; and', '70 to 85% by weight of methyl methacrylate, n-butyl acrylate, 2-ethylhexyl acrylate, styrene, alpha-methyl styrene, or a mixture of two or more thereof, in polymerized form,', 'wherein ...

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Номер записи: 54

24-01-2019 дата публикации

High viscosity lubricants with polyether

Номер: US20190024013A1

Автор: Mark D. Latunski

Принадлежит: AMERICAN CHEMICAL TECHNOLOGIES Inc

Disclosed is a method of treating a used hydrocarbon lubricant of ISO Viscosity Grade 46 or higher comprising oxidation products that adversely affect lubricant performance. The hydrocarbon lubricant has a Group II hydrocarbon oil or Group III hydrocarbon oil, optionally one or more lubricant additives, and an amount of varnish. The hydrocarbon lubricant is free of zinc-containing additives. The method comprises adding to the used hydrocarbon lubricant from about 2 percent by weight to about 20 percent by weight of a polyhydroxy polypropylene oxide homopolymer that has a hydroxyl number of from about 12 mg KOH/g to about 58 mg KOH/g as measured according to ASTM D4274.

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Номер записи: 55

23-01-2020 дата публикации

SYNTHETIC LUBRICANT COMPOSITIONS HAVING IMPROVED OXIDATION STABILITY

Номер: US20200024541A1

Автор: Greaves Martin R., Zaugg-Hoozemans Evelyn A.

Принадлежит: Dow Global Technologies LLC

Embodiments of the present disclosure directed towards synthetic lubricant compositions. In various embodiments, the present disclosure provides a synthetic lubricant compositions including an aromatic amine antioxidant comprising 0.25 to 5 weight percent of a total weight of the synthetic lubricant composition, dithiocarbamate antioxidant comprising 0.25 to 5 weight percent of the total weight of the synthetic lubricant composition, and a polyalkylene glycol PAG comprising 99.25 to 85 weight percent of the total weight of the synthetic lubricant composition, where the synthetic lubricant composition has a total acidic number (TAN) increase of 2 milligrams of potassium hydroxide per gram of the synthetic lubricant composition over 27 days or greater as measured in accordance with modified ASTM D-664, and where the synthetic lubricant composition does not include any of a Group I, II, III, IV base oil. 1. A synthetic lubricant composition comprising:an aromatic amine antioxidant comprising 0.25 to 5 weight percent of a total weight of the synthetic lubricant composition;dithiocarbamate antioxidant comprising 0.25 to 5 weight percent of the total weight of the synthetic lubricant composition; anda polyalkylene glycol (PAG) comprising 99.25 to 85 weight percent of the total weight of the synthetic lubricant composition, wherein the synthetic lubricant composition has a total acidic number (TAN) increase of 2 milligrams of potassium hydroxide per gram of the synthetic lubricant composition over 27 days or greater as measured in accordance with ASTM D664, and wherein the synthetic lubricant composition does not include any of a Group I, II, III, IV base oil.2. The synthetic lubricant composition of claim 1 , wherein the aromatic amine antioxidant is an alkylated diphenylamine.3. The synthetic lubricant composition of claim 1 , wherein the dithiocarbamate antioxidant comprises an ashless dialkyl dithiocarbamate claim 1 , a metal dialkyl dithiocarbamate claim 1 , or ...

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Номер записи: 56

23-01-2020 дата публикации

LUBRICANT COMPOSITION, COMPOSITION FOR REFRIGERATING MACHINES, AND METHOD FOR DETECTING LEAKAGE POINT

Номер: US20200024544A1

Автор: KANEKO Masato

Принадлежит: IDEMITSU KOSAN CO., LTD.

Provided is a lubricant composition which is excellent in thermal stability and chemical stability while making it possible to detect a leakage point of the lubricant composition, etc. with a fluorescent agent. The lubricant composition is one containing a base oil (A) and a fused ring compound (B) being fluorescent, having a tri- or higher fused ring, and not having nitrogen, oxygen, and sulfur in a molecule thereof, wherein the fused ring compound (B) is contained in an amount of 0.001 to 1.0% by mass on a basis of the whole amount of the lubricant composition. 1: A lubricant composition , comprising(A) a base oil (A); and(B) a fluorescent fused ring compound (B) being fluorescent, having a tri- or higher fused ring, and not having nitrogen, oxygen, and sulfur in a molecule thereof,wherein the fused ring compound (B) is contained in an amount of 0.001 to 1.0% by mass on a basis of the whole amount of the lubricant composition.2: The lubricant composition according to claim 1 , wherein the base oil (A) is at least one selected from the group consisting of a mineral oil claim 1 , a polyalkylene glycol claim 1 , a polyvinyl ether claim 1 , a polyol ester claim 1 , an alkylbenzene claim 1 , and a poly-α-olefin.3: The lubricant composition according to claim 1 , wherein the fused ring compound (B) is at least one selected from the group consisting of a perylene-based compound claim 1 , a naphthacene-based compound claim 1 , and an anthracene-based compound.4: The lubricant composition according to claim 1 , further comprising(C) a coloring agent (C).5: The lubricant composition according to claim 1 , which is adapted to function as a lubricant composition for any of a refrigerator oil claim 1 , a hydraulic oil claim 1 , a bearing oil claim 1 , a gear oil claim 1 , a turbine oil claim 1 , a transmission oil claim 1 , a shock absorber oil claim 1 , and a motor cooling oil.6: A composition for refrigerating machines claim 1 , the composition comprising the lubricant ...

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Номер записи: 57

28-01-2021 дата публикации

COMPOSITIONS OF POLYMER COMPOSITES FOR EFFLUENTS DELIVERY AND APPLICATIONS THEREOF

Номер: US20210024847A1

Автор: HUNSUCKER John Travis, KHATRI Chetan Anirudh, Kim Philseok, Lomakin Joseph

Принадлежит:

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

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Номер записи: 58

28-01-2021 дата публикации

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

Номер: US20210024850A1

Автор: Hughes Kevin J., Nickerson David M., Perera Sujith, Schiferl Elizabeth A., Smith Alonzo

Принадлежит:

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

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Номер записи: 59

24-04-2014 дата публикации

High viscosity index lubricating oil base stock and viscosity modifier combinations, and lubricating oils derived therefrom

Номер: US20140113847A1

Автор: Jared Michael ROBILLARD, Percy Rohinton Kanga, Willie Allan Givens

Принадлежит: ExxonMobil Research and Engineering Co

A lubricating composition including a first base stock component including: one or more metallocene catalyzed polyalphaolefins (mPAOs), each mPAO having a kinematic viscosity (Kv 100 ) from 40 cSt to 155 cSt and a viscosity index (VI) from 150 to 207; a second base stock including one or more polyalphaolefins (PAOs), each PAO having a kinematic viscosity (Kv 100 ) less than 10 cSt and a VI from 130 to 145; and a viscosity modifier including a copolymer having units derived from monomers of (i) an α-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof esterified with an alcohol. A lubricant including the above lubricating composition. A method for improving fuel efficiency, while maintaining or improving wear control, load carrying capacity and/or traction reduction in a driveline device, e.g., gears and transmissions, lubricated with a lubricating oil, by using as the lubricating oil the above lubricant.

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Номер записи: 60

24-04-2014 дата публикации

LUBRICATING OIL COMPOSITION

Номер: US20140113848A1

Автор: Matsui Shigeki, Miyamoto Hiroya

Принадлежит: JX NIPPON OIL & ENERGY CORPORATION

The present invention provides a lubricating oil composition for an internal combustion engine used mainly to drive a generator and to improve the fuel economy thereof. The composition comprises (A) a base oil being a hydrocarbon base oil having a ratio (CA/CB) of the proportion of the component of 24 or fewer carbon atoms (CA) and the proportion of the component of 25 or more carbon atoms (CB) in the carbon number distribution obtained by gas chromatography distillation of 2.0 or higher, the composition having a ratio (Vs/Vk) of the 80° C. high-temperature high-shear (HTHS) viscosity (Vk) and the 150° C. HTHS viscosity (Vs) of 0.35 or higher and a 100° C. kinematic viscosity of 2.5 mm/s or higher and 5.2 mm/s or lower. 1. A lubricating oil composition comprising (A) a base oil being a hydrocarbon base oil having a ratio (CA/CB) of proportion of component of 24 or fewer carbon atoms (CA) and proportion of component of 25 or more carbon atoms (CB) in carbon number distribution obtained by gas chromatography distillation of 2.0 or higher , the composition having a ratio (Vs/Vk) of 80° C. high-temperature high-shear (HTHS) viscosity (Vk) and 150° C. HTHS viscosity (Vs) of 0.35 or higher and a 100° C. kinematic viscosity of 2.5 mm/s or higher and 5.2 mm/s or lower.2. The lubricating oil composition according to claim 1 , further comprising (B) a viscosity index improver having a ratio of weight-average molecular weight and PSSI of 1.2×10or greater.3. The lubricating oil composition according claim 1 , wherein the composition is an engine oil for a generator.4. The lubricating oil composition according claim 2 , wherein the composition is an engine oil for a generator. The present invention relates to lubricating oil composition.Conventionally, lubricating oil has been used in an internal combustion engine, a transmission or other mechanical devices to allow the smooth operation thereof. In particular, a lubricating oil (engine oil) for an internal combustion engine is ...

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Номер записи: 61

02-02-2017 дата публикации

COMPOSITIONS BASED ON ETHYLENE-VINYL ACETATE COPOLYMERS AND THEIR USE AS ANTI-GELLING ADDITIVES OF PARAFFINIC CRUDE OILS

Номер: US20170029732A1

Автор: AGNOLI Michela, Casalini Alessandro, MARIANI Paolo, MERLINI Massimo

Принадлежит:

A polymeric composition suitable for lowering the Pour Point of paraffinic crude oils comprising a synergic mixture including at least two ethylene-vinyl acetate copolymers respectively having an average molecular weight Mw lower than 130,000 Dalton (measured via GPC), a content of vinyl acetate monomer ranging from 15 to 50% by weight, with the proviso that the content of vinyl acetate monomer in the respective copolymers differs from one copolymer to another, by over 5%, on a weight basis. 1. A polymeric composition suitable for lowering the Pour Point of paraffinic crude oils comprising a synergic mixture comprising at least two ethylene-vinyl acetate (EVA) copolymers having an average molecular weight Mranging from 25 ,000 to 100 ,000 Dalton (measured via GPC) , a content of vinyl acetate (VA) monomer ranging from 15 to 50% by weight , respectively , with the proviso that the content of vinyl acetate monomer in the respective copolymers differs from one another by a value higher than 5% on a weight basis.2. The polymeric composition according to claim 1 , wherein the number of EVA copolymers in the synergic mixture ranges from 2 to 6.3. The polymeric composition according to claim 1 , wherein the EVA copolymers have a weight average molecular weight Mranging from 25 claim 1 ,000 to 80 claim 1 ,000 Dalton.4. The polymeric composition according to claim 1 , wherein the content of VA comonomers claim 1 , on a weight basis claim 1 , differs from one copolymer to another by a value from 7 to 22%.5. The polymeric composition according to claim 1 , wherein the synergic mixture comprises three EVA copolymers having a content of vinyl acetate comonomer of 20 claim 1 , 30 and 40% by weight claim 1 , respectively.6. The polymeric composition according to claim 1 , wherein the synergic mixture comprises three EVA copolymers having a content of vinyl acetate comonomer of 24 claim 1 , 33 and 40% by weight claim 1 , respectively.7. The polymeric composition according to claim ...

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Номер записи: 62

04-02-2016 дата публикации

POLYMERIC COMPOSITIONS AS POUR POINT DEPRESSANTS FOR CRUDE OILS

Номер: US20160032200A1

Автор: FRENZEL Stefan, GARCIA CASTRO Ivette, Gumlich Kai, Heuken Maria, Konrad Rouven, Neubecker Karin

Принадлежит:

Polymeric compositions obtainable by free-radical polymerization of at least two different alkyl (meth)acrylates in the presence of at least one ethylene-vinyl ester copolymer, the alkyl (meth)acrylates used being a mixture comprising alkyl (meth)acrylates having linear C- to C-alkyl radicals and different alkyl (meth)acrylates having linear C- to C-alkyl radicals and/or branched C- to C-alkyl radicals and/or cyclic C- to C-alkyl radicals. The use of such polymeric compositions as pour point depressants for crude oils, mineral oils or mineral oil products. 123.-. (canceled)24. A process for lowering the pour point of a crude oil , the process comprising adding a polymer composition to the crude oil , the polymer composition obtained by free-radical polymerization of monoethylenically unsaturated monomers (A) in the presence of at least one ethylene-vinyl ester copolymer (B) , whereinthe unsaturated monomers (A) comprise at least 70% by weight of alkyl (meth)acrylates (A1) based on a total amount of monomers (A),{'sub': 2', '1', '4, 'sup': 1', '1, 'the ethylene-vinyl ester copolymers (B) comprise 55 to 85% by weight of ethylene and 15 to 45% by weight of vinyl esters of formula (III) HC═CH—O—(O)C—R, where Ris H or a C-Chydrocarbyl radical, and'}the amount of the monomers (A) accounts for 70 to 90% by weight, and the amount of the ethylene-vinyl ester copolymers (B) accounts for 10 to 30% by weight, based on the total weight of the monomers (A) and the copolymers (B), of the polymer composition,wherein the alkyl (meth)acrylates (A1) consist of a mixture of{'sub': '2', 'sup': 2', '3', '2', '3, '(A1a) 50 to 99 mol % of at least one alkyl (meth)acrylate of formula HC═C(R)—COOR, where Ris H or a methyl group, and Ris a linear alkyl radical having 12 to 60 carbon atoms, and'}{'sub': '2', 'sup': 2', '4', '2', '4', '4a', '4b', '4c, '(A1b) 1 to 49 mol % of at least one alkyl (meth)acrylate of formula HC═C(R)—COOR, where Ris as defined above, and Ris a hydrocarbyl radical ...

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Номер записи: 63

31-01-2019 дата публикации

LUBRICATING OIL COMPOSITION

Номер: US20190031973A1

Автор: Fukumizu Takahiro, Mori Takafumi, Nishinosono Junichi, Ogawa Masashi, Sato Takehisa

Принадлежит:

Provided is a lubricating oil composition, which has low viscosity but also prolonged anti-shudder life without reduction of intermetallic friction coefficient. The lubricating oil composition is characterized in comprising (A) a lubricating base oil, and (C) (C-1) a borated succinimide compound with a mass average molecular weight of 4,000-7,000 and (C-2) a borated succinimide compound with a mass average molecular weight of greater than 7,000-10,000. 1. A lubricating oil composition , comprising:(A) a lubricating base oil; and '(C-2) a boronated succinimide compound having a weight-average molecular weight of more than 7,000 and not more than 10,000.', '(C) (C-1) a boronated succinimide compound having a weight-average molecular weight of 4,000 to 7,000 and'}2. The lubricating oil composition according to claim 1 , wherein part or all of component (A) comprises a poly(α-olefin) or α-olefin copolymer having a kinematic viscosity at 100° C. of 6 to 80 mm/s in an amount of 5 to 30% by weight based on a total weight of the lubricating oil composition; andwherein the lubricating oil composition further comprises (B) a polymethacrylate having a weight-average molecular weight of 15,000 to 40,000.3. The lubricating oil composition according to claim 1 , wherein each of component (C-1) and component (C-2) contains 0.1 to 3% by weight of boron based on a weight of component (C-1) or component (C-2).4. The lubricating oil composition according to claim 1 , wherein a weight ratio of component (C-2) to component (C-1) claim 1 , i.e. claim 1 , (C-2)/(C-1) is 1 to 10.5. The lubricating oil composition according to claim 1 , wherein the lubricating oil composition has a kinematic viscosity at 100° C. of 3 to 10 mm /s.6. The lubricating oil composition according to claim 1 , wherein the lubricating oil composition has a viscosity index of 150 or more.7. The lubricating oil composition according to claim 1 , further comprising (D) a metal detergent.8. The lubricating oil ...

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Номер записи: 64

04-02-2021 дата публикации

LUBRICATING OIL COMPOSITION AND USE METHOD THEREFOR

Номер: US20210032559A1

Автор: FUJIMOTO Kosuke, SUNAHARA Kenji, YAMAMORI Kazuo

Принадлежит:

Provided are a lubricating oil composition used in a diesel engine equipped with a forced-induction compressor, containing a base oil (A) containing a poly-α-olefin (A1), and a viscosity index improver (B) having an SSI (shear stability index) of 20 or less, having a distillation amount of a light fraction of 496° C. or less in a gas chromatography distillation test of less than 80% by volume, having a high retention of the effect of suppressing the formation of deposits that may occur inside the compressor, and being capable of retaining a high efficiency of the compressor for a long period of time, in the use thereof in a diesel engine equipped with a forced-induction compressor having an outlet temperature of the compressor becoming a high temperature reaching 190° C. or more, and a method for using the lubricating oil composition. 1. A lubricating oil composition used in a diesel engine equipped with a forced-induction compressor ,comprising a base oil (A) containing a poly-α-olefin (A1), and a viscosity index improver (B) having an SSI (shear stability index) of 20 or less, andhaving a distillation amount of a light fraction of 496° C. or less in a gas chromatography distillation test of less than 80% by volume.2. The lubricating oil composition according to claim 1 , wherein the viscosity index improver (B) contains at least one of a star polymer (B1) and a comb polymer (B2).3. The lubricating oil composition according to claim 2 , wherein the lubricating oil composition has contents of the star polymer (B1) and the comb polymer (B2) in terms of resin component each independently of 0.01 to 10% by mass based on the total amount of the lubricating oil composition.4. The lubricating oil composition according to claim 2 , wherein the viscosity index improver (B) contains a star polymer (B1) and a polymethacrylate (B3).5. The lubricating oil composition according to claim 4 , wherein the lubricating oil composition has a content of the polymethacrylate (B3) in ...

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Номер записи: 65

11-02-2016 дата публикации

Lubricating oil composition

Номер: US20160040095A1

Автор: Masatoshi Toda, Tomoaki Fujii

Принадлежит: Idemitsu Kosan Co Ltd

A lubricating oil composition of the invention contains a first base oil having a kinematic viscosity at 100 degrees C. in a range from 0.6 mm 2 /s to 3.5 mm 2 /s and a first poly(meth)acrylate having a mass average molecular weight in a range from 3×10 4 to 5×10 4 .

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Номер записи: 66

09-02-2017 дата публикации

POLYMERS AS ADDITIVES FOR FUELS AND LUBRICANTS

Номер: US20170037336A1

Автор: Flores-Figueroa Aaron, GARCIA CASTRO Ivette, HANSCH Markus, Mezger Jochen, Muehlbach Klaus, PERETOLCHIN Maxim, VOELKEL Ludwig

Принадлежит: BASF SE

The present invention relates to novel uses of corrosion inhibitors in fuels and lubricants. 1: A method for improving a fuel or a lubricant , the method comprising:adding at least one copolymer to the fuel or the lubricant, at least 4 acid groups per polymer chain,', 'a ratio of carbon atoms per acid group of 7 to 35, and', 'an acid number of 80 to 320 mg KOH/g, determined by potentiographic titration with 0.5 molar aqueous hydrochloric acid after heating in a 0.5 molar ethanolic potassium hydroxide solution for three hours, and, 'wherein the copolymer comprises a statistical average of'}wherein the adding results in the copolymer functioning as at least one selected from the group consisting of a fuel additive for reducing the fuel consumption of a direct injection diesel engine, for minimizing power loss in a direct injection diesel engine, or both, a diesel fuel additive for reducing deposits, preventing deposits, or both in a fuel system, and a gasoline fuel additive for reducing the level of deposits in an intake system of a direct injection spark ignition gasoline engine, a port fuel injector gasoline engine, or both.2: The method according to claim 1 , wherein the acid groups are carboxyl groups.3: The method according to claim 1 , wherein the copolymer comprises up to 50 acid groups per polymer chain.4: The method according to claim 1 , wherein the copolymer comprises not more than 5 functional groups other than oxygen-containing functional groups and nitrogen-containing functional groups per polymer chain.5: The method according to claim 1 , wherein the copolymer comprises not more than 3 oxygen-containing functional groups per polymer chain other than carbonate groups claim 1 , ether groups or ester groups.6: The method according to claim 1 , wherein the copolymer comprises not more than 20 ether groups per polymer chain.7: The method according to claim 1 , wherein the copolymer comprises not more than 50 ester groups or carbonate groups per polymer chain ...

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Номер записи: 67

08-02-2018 дата публикации

Process for Preparing Polymers and Compositions Thereof

Номер: US20180037839A1

Автор: Baum Marina, Davies Mark C., Johnson John R., Schober Barton J., Visger Daniel C.

Принадлежит:

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, ...

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Номер записи: 68

12-02-2015 дата публикации

WORKING FLUID COMPOSITION FOR REFRIGERATOR

Номер: US20150041704A1

Автор: Adegawa Kuniko, Konno Souichirou, Okido Takeshi, Saito Masanori

Принадлежит: JX NIPPON OIL & ENERGY CORPORATION

The working fluid composition for a refrigerating machine of the present invention comprises a refrigerant comprising a first refrigerant component and a second refrigerant component, and having a global warming potential (GWP) of 500 or less, wherein the first refrigerant component is at least one selected from difluoromethane and tetrafluoropropene, and the second refrigerant component is at least one selected from carbon dioxide and a hydrocarbon having 3 to 4 carbon atoms; and a refrigerating machine oil comprising at least one selected from a polyol ester, a polyvinyl ether and a polyalkylene glycol compound as a base oil, wherein a carbon/oxygen molar ratio of the base oil is 2.5 or more and 5.8 or less. 1. A working fluid composition for a refrigerating machine , comprising:a refrigerant comprising a first refrigerant component and a second refrigerant component, and having a global warming potential (GWP) of 500 or less, wherein the first refrigerant component is at least one selected from difluoromethane and tetrafluoropropene, and the second refrigerant component is at least one selected from carbon dioxide and a hydrocarbon having 3 to 4 carbon atoms; anda refrigerating machine oil comprising at least one selected from a polyol ester, a polyvinyl ether and a polyalkylene glycol compound as a base oil, wherein a carbon/oxygen molar ratio of the base oil is 2.5 or more and 5.8 or less.2. The working fluid composition for a refrigerating machine according to claim 1 , wherein the refrigerant comprises the hydrocarbon having 3 to 4 carbon atoms claim 1 , difluoromethane and tetrafluoropropene claim 1 , and has a global warming potential of 400 or less.3. The working fluid composition for a refrigerating machine according to claim 1 , wherein the refrigerant comprises 3 to 40 parts by mass of the hydrocarbon having 3 to 4 carbon atoms claim 1 , 20 to 60 parts by mass of difluoromethane and 20 to 70 parts by mass of tetrafluoropropene based on 100 parts by mass ...

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Номер записи: 69

07-02-2019 дата публикации

LUBRICANT FOR A TWO-STROKE MARINE ENGINE

Номер: US20190040333A1

Автор: DOYEN Valérie

Принадлежит: TOTAL MARKETING SERVICES

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

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Номер записи: 70

18-02-2021 дата публикации

POLYETHYLENE DIESTER VISCOSITY MODIFIERS

Номер: US20210047580A1

Автор: Cermak Steven C., Isbell Terry, LOWERY BENJAMIN A.

Принадлежит:

Disclosed are compositions containing at least one of the following: 2. The composition according to claim 1 , wherein said composition comprises at least one member of the group consisting of unsaturated hydroxy derived estolide polyethylene glycol diesters claim 1 , hydroxy derived estolide trimetholpropane diesters claim 1 , and mixtures thereof; and optionally a carrier.3. The composition according to claim 1 , wherein said composition comprises unsaturated hydroxy derived estolide polyethylene glycol diesters and optionally a carrier.4. The composition according to claim 1 , wherein said composition comprises hydroxy derived estolide trimetholpropane diesters and optionally a carrier.5. The composition according to claim 1 , wherein said composition further comprises a lubricant.6. A method to improve the viscosity index of a lubricant claim 1 , said method comprising mixing the composition according to with a lubricant. Disclosed are compositions containing at least one of the following:Vegetable oils offer a wide range of functionality that can be utilized to make lubricants and lubricant additives by derivatization of the ester, alcohol, or olefin moieties (Karmakar, G., et al., Lubricants, 44: 1-17 (2017)). The hydroxyl containing triglycerides of castor and offer all these functionalities within one molecule and, as a result, lithium soaps have all been synthesized from these starting materials (García-Zapateiro, L. A., et al., Ind. Crop Prod., 54: 115-121 (2014)), estolides (Bredsguard, J., 2017, U.S. Pat. No. 9,650,328; Bredsguard, J., and J. Forest, 2017, U.S. Pat. No. 9,605,231; Bredsguard, J., et al., 2018, U.S. Pat. No. 9,878,973; Bredsguard, J., and T. Thompson, 2013, U.S. Patent App. Pub. 2013/0324754; Cermak, S. C., et al., Ind. Crop Prod., 23: 54-64 (2006); Garcia-Zapateiro, L. A., et al., Grasasy Acetias, 61: 171-174 (2010); Forest, J., 2017, U.S. Pat. No. 9,648,892; Forest, J., et al., 2017, U.S. Pat. No. 9,840,606; Isbell, T. A., and S. C. ...

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Номер записи: 71

18-02-2016 дата публикации

BRANCHED POLYMERS AS VISCOSITY AND/OR FRICTION MODIFIERS FOR LUBRICANTS

Номер: US20160046885A1

Автор: Bhattacharya Priyanka, Cosimbescu Lelia, Robinson Joshua W.

Принадлежит: BATTELLE MEMORIAL INSTITUTE

Embodiments of branched polymer lubricant additives comprise a branched polymer and, when combined with a lubricant base at a concentration from 1 wt % to 50 wt %, provide (i) a viscosity index ≧150, (ii) that is at least 10% less than a coefficient of friction of the lubricant base alone in contact with a component of a device during operation of the device at a temperature within a range of 20 to 100° C., or (iii) both (i) and (ii). 1. A branched polymer , comprising:(a) a hyperbranched polar core having a functionality of at least 3 and comprising a plurality of heteroatoms, and a plurality of polymeric or non-polymeric arms bonded to the hyperbranched polar core, wherein when the functionality is within a range of 3-21 and the plurality of arms is polymeric, the hyperbranched polar core is not a cyclotetrasiloxane derivative, a cyclophosphazene derivative, a calixarene derivative, a cyclodextrin derivative, or a saccharide derivative;{'sub': x', 'x', 'y', '2', 'y, '(b) an aryl polyester core derived from ABmonomers, AB+Bmonomers, or A+Bmonomers, where x≧2 and y≧3, the aryl polyester core having a degree of branching within a range of 0.1 to 0.9, and a plurality of polymeric or non-polymeric arms bonded to the aryl polyester core; or'}(c) a branched polyolefin including first monomeric units derived from an olefin and second monomeric units derived from polar monomers, each polar monomer including at least one heteroatom, wherein when the olefin is ethylene, the polar monomers are not an alkenyl ether, methyl-9-decenoate, or methyl 2,2-dimethylpent-4-enoate.2. The branched polymer of claim 1 , wherein the branched polymer comprises a hyperbranched polar core derived from:a branched 2,2-bis(hydroxymethyl)propionic acid polyester comprising 8-256 hydroxy moieties;a branched polyethyleneimine comprising primary, secondary, and tertiary amine groups and having an weight average molecular weight within a range of 600-10,000 Daltons; ora branched polyamidoamine ...

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Номер записи: 72

16-02-2017 дата публикации

LUBRICANT FOR METAL COLD FORMING PROCESSES AND METHODS OF USE OF THE SAME

Номер: US20170044458A1

Автор: Roelofs Robert Ross

Принадлежит:

Disclosed is a lubricant for use in cold forming of a metal. The lubricant comprises a mixture of at least one lubricating compound and at least one starch. The starch adheres the lubricating compound to the metal surface. The present lubricant completely removes the need to pre-coat the metal with a zinc phosphate coating to adhere the lubricating compound to the metal. The present lubricant eliminates several steps required in processes that utilize zinc phosphate pre-coatings. In addition, the lubricant of the present invention is easily removed after the cold forming operations unlike zinc phosphate coatings. 1. A lubricant for use in cold forming of a metal comprising:at least one lubricating compound; andat least one starch;wherein a weight:weight ratio of a total amount of said at least one lubricating compound to a total amount of said at least one starch in said lubricant is in a range of from 1:1 to 8:1 and wherein said lubricant is a solid at 75° F.2. The lubricant as recited in claim 1 , wherein said at least one lubricating compound is selected from the group consisting of: a soap that is a metal salt of a C6 to C22 fatty acid; a soap that is a metal salt of a C6 to C22 fatty acid containing one or more hydroxyl function groups; boric acid; a metal salt of boric acid; boron nitride; zinc oxide; calcium oxide; molybdenum disulfide; an emulsion of polyethylene; an emulsion of high density polyethylene; an emulsion of polypropylene; an emulsion of maleated polypropylene; an emulsion of a urethane; an emulsion of an oxidized polyethylene; an emulsion of an oxidized high density polyethylene; an emulsion of an oxidized polypropylene; an emulsion of an oxidized maleated polypropylene; an emulsion of an oxidized urethane; and mixtures thereof.3. The lubricant as recited in claim 1 , wherein said at least one starch is selected from the group consisting of a food grade starch claim 1 , an anionic starch claim 1 , a cationic starch claim 1 , a modified starch ...

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Номер записи: 73

15-02-2018 дата публикации

LUBRICATING OIL COMPOSITION FOR INTERNAL-COMBUSTION ENGINE, AND METHOD FOR REDUCING FRICTION IN GASOLINE ENGINE

Номер: US20180044609A1

Автор: NAKAYA Ikuko, Takashima Yoriyuki

Принадлежит: IDEMITSU KOSAN CO., LTD.

Provided is a lubricating oil composition for internal combustion engines capable of exhibit a sufficient friction-reducing effect from a low-temperature range assuming engine starting to a practical temperature range of 80° C. or higher. The lubricating oil composition for internal combustion engines contains a surfactant having an alkylene oxide as the constituent unit and having an HLB value of 7 or more and less than 15, and a lubricant base oil. 1. A lubricating oil composition for internal combustion engines , the composition comprising:a surfactant having an alkylene oxide as the constituent unit and having an HLB value of 7 or more and less than 15, anda lubricant base oil.2. The lubricating oil composition for internal combustion engines according to claim 1 , wherein the surfactant has a molecular weight in a range of 350 to 950 g/mol.3. The lubricating oil composition for internal combustion engines according to claim 1 , wherein the surfactant is an amine compound.4. The lubricating oil composition for internal combustion engines according to claim 3 , wherein the amine compound is a tertiary amine.5. The lubricating oil composition for internal combustion engines according to claim 1 , wherein the surfactant is a polyoxyalkylene fatty acid ester.6. The lubricating oil composition for internal combustion engines according to claim 1 , wherein a content of the surfactant in the lubricating oil composition is 0.01 to 2.0% by mass.7. The lubricating oil composition for internal combustion engines according to claim 1 , further comprising:a boron-modified succinimide.8. The lubricating oil composition for internal combustion engines according to claim 7 , wherein a boron atom-equivalent content of the boron-modified succinimide in the lubricating oil composition is 0.2% by mass or less.9. The lubricating oil composition for internal combustion engines according to claim 7 , wherein a ratio by mass of a content of boron-modified succinimide/a content of the ...

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Номер записи: 74

19-02-2015 дата публикации

Automotive Transmission Fluid Compositions for Improved Energy Efficiency

Номер: US20150051131A1

Автор: JR. Joseph R., Kim Hahn Soo, Noles, Watts Raymond F.

Принадлежит: Infineum International Limited

Automotive transmission fluid compositions are provided having improved power transmission properties through the presence therein of certain defined additives, which increase the fuel efficiency of the vehicle during operation. The invention further provides a process for the manufacture of such transmission fluid compositions, a method of improving the energy efficiency of a transmission, and an additive concentrate for a transmission fluid. 1. An automotive transmission fluid composition consisting of:a lubricating oil, or blend of lubricating oils;(ii) a viscosity modifier additive or blend of viscosity modifier additives;(iii) a polyalphaolefin compound or compounds; and (ii)(a) random or block poly-alkylacrylates or poly-alkylmethacrylates, or copolymers thereof;', '(ii)(b) star polymers comprising a polyvalent core of polyalkylacrylate or polyalkylmethacrylate from which a plurality or arms depend, the arms being polymer chains containing alkylacrylate or alkylmethacrylate monomer units; or', '(ii)(c) comb polymers prepared by the copolymerisation of one or more alkylacrylate or alkylmethacrylate monomers with one or more olefin or polyolefin monomers., 'wherein the or each polyalphaolefin compound (iii) is made by the metallocene-catalysed polymerisation of an alphaolefin feedstock, and wherein the total amount of the polyalphaolefin compound(s) (iii) in the transmission fluid composition does not exceed 4 percent by weight of the composition; and wherein at least one viscosity modifier additive (ii) contains a polymer or blend of polymers selected from one or more of the following groups, '(iv) one or more detergent/inhibitor additives,'}2. The transmission fluid composition of claim 2 , wherein the total amount of the polyalphaolefin compound or compounds (iii) in the composition is in the range of 2 to 3 percent by weight of the composition.3. The transmission fluid composition of claim 1 , wherein the viscosity modifier additive is claim 1 , or the blend ...

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Номер записи: 75

03-03-2022 дата публикации

POLYALKYLENE GLYCOL-BASED COMPOUND

Номер: US20220064093A1

Автор: NAKAJIMA So, Yoshida Yukio

Принадлежит: IDEMITSU KOSAN CO.,LTD.

A polyalkylene glycol-based compound may have formula (1):

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Номер записи: 76

03-03-2022 дата публикации

LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE

Номер: US20220064560A1

Автор: Nakazawa Hiroki

Принадлежит: ENEOS CORPORATION

A lubricating oil composition for an internal combustion engine has a HTHS viscosity at 150° C. of 2.55-2.84 mPa·s and includes: (A) a lubricating base oil including (a) mineral base oil(s) and/or (a) synthetic base oil(s), and having a kinematic viscosity at 100° C. of 3.8-4.6 mm/s; (B) 1000-2000 mass ppm, in terms of metal content, of a metallic detergent including (a) metal salicylate detergent(s), and delivering 10 mmol/kg of total salicylate soap base per kilogram of the composition; (C) 1.0 to 4.0 mass % of a comb-shaped poly(meth)acrylate having a Mw of 350,000-1,000,000 and a PDI of ≤4.0; and (D) 100-1000 mass ppm, in terms of nitrogen, of a succinimide dispersant including (i) (a) non-modified succinimide dispersant(s) and/or (ii) (a) boric acid-modified succinimide dispersant(s), wherein the (i) and the (ii), in total, deliver 70 mass % of total nitrogen content of the component (D). 1. A lubricating oil composition for an internal combustion engine , the composition comprising:{'sup': '2', '(A) a lubricating base oil comprising at least one mineral base oil or at least one synthetic base oil or any combination thereof, and having a kinematic viscosity at 100° C. of 3.8 to 4.6 mm/s;'}(B) a metallic detergent comprising at least one metal salicylate detergent, wherein the component (B) is present in an amount of 1000 to 2000 mass ppm in terms of metal content on the basis of the total mass of the composition, and wherein the component (B) is present in an amount of no less than 10 mmol/kg in terms of total molar amount of any salicylate soap base per kilogram of the composition;(C) at least one comb-shaped poly(meth)acrylate in an amount of 1.0 to 4.0 mass % in terms of resin content on the basis of the total mass of the composition, the comb-shaped poly(meth)acrylate having a weight average molecular weight of 350,000 to 1,000,000 and a polydispersity index of no more than 4.0; and(D) a succinimide dispersant in an amount of 100 to 1000 mass ppm in terms ...

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Номер записи: 77

03-03-2022 дата публикации

GEAR OIL COMPOSITION

Номер: US20220064563A1

Автор: HEINEMANN Henrik, KASHANI Nawid, Koschabek Rene, Ma Qinggao, MONZ Karolin, Rabbat Philippe, Rittig Frank, Scherer Markus

Принадлежит:

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

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Номер записи: 78

03-03-2022 дата публикации

LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE

Номер: US20220064564A1

Автор: Nakazawa Hiroki

Принадлежит: ENEOS CORPORATION

A lubricating oil composition for an internal combustion engine has a HTHS viscosity at 150° C. of 2.25 to <2.55 mPa·s and includes: (A) a lubricating base oil including (a) mineral base oil(s) and/or (a) synthetic base oil(s), and having a kinematic viscosity at 100° C. of 3.8-4.6 mm/s; (B) 1000-2000 mass ppm, in terms of metal content, of a metallic detergent including (a) metal salicylate detergent(s), and delivering ≥10 mmol/kg of total salicylate soap base per kilogram of the composition; (C) 1.0 to 4.0 mass % of a comb-shaped poly(meth)acrylate having a Mw of 350,000-1,000,000 and a PDI of ≤4.0; and (D) 100-1000 mass ppm, in terms of nitrogen, of a succinimide dispersant including (i) (a) non-modified succinimide dispersant(s) and/or (ii) (a) boric acid-modified succinimide dispersant(s), wherein the (i) and the (ii), in total, deliver 70 mass % of total nitrogen content of the component (D).

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Номер записи: 79

03-03-2022 дата публикации

COMPOSITION FOR PRODUCING A LUBRICANT COMPOSITION

Номер: US20220064565A1

Автор: ASAM Tobias, DEGEN Patrick, KOGEL Lutz

Принадлежит: Carl Bechem GmbH

Lubricant composition, in particular a cooling lubricant solution, based on ionic and/or organoelemental compounds. 1. A compositionobtainable by combining a component (A) and at least two metal salts (M), component (A) consisting of one or more inorganic salts, wherein the metal salts (M) differ in the oxidation number of the metal and/or in the counterion and the metal is Fe.2. The composition according to claim 1 , wherein the metal salt (M) comprises at least one counterion selected from the group consisting of sulfide claim 1 , sulfite claim 1 , sulfate claim 1 , thiosulfate claim 1 , disulfite claim 1 , tetrathionate claim 1 , ammonium claim 1 , acetate claim 1 , citrate claim 1 , oxalate claim 1 , cyanide claim 1 , iodide claim 1 , bromide claim 1 , chloride claim 1 , fluoride claim 1 , nitride claim 1 , nitrate claim 1 , phosphide claim 1 , phosphite claim 1 , phosphate claim 1 , diphosphate claim 1 , polyphosphate claim 1 , metaphosphate or mixtures thereof claim 1 , preferably from the group consisting of sulfate claim 1 , ammonium claim 1 , acetate claim 1 , citrate claim 1 , oxalate claim 1 , phosphate or mixtures thereof claim 1 , most preferably from the group consisting of sulfate claim 1 , ammonium claim 1 , acetate claim 1 , citrate claim 1 , oxalate claim 1 , phosphate or mixtures thereof.3. The composition according to claim 1 , wherein two different metal salts (M) are present in a ratio between 10:1 and 1:10 claim 1 , preferably between 5:1 and 1:5 claim 1 , particularly preferably between 2:1 and 1:2.4. The composition according to claim 1 , wherein one metal has the oxidation state (II+) and one metal has the oxidation state (III+).5. The composition according to claim 1 , wherein one metal has the oxidation state (II+) and one metal has the oxidation state (III+) claim 1 , and the metal salt (M) containing Fe(II+) is present in a molar ratio of between 10:1 and 1:10 claim 1 , preferably between 5:1 and 1:5 claim 1 , more preferably between 2: ...

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Номер записи: 80

23-02-2017 дата публикации

SOLID LUBRICANT, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

Номер: US20170052501A1

Автор: AMEMIYA Taiki, HOSOYA Yukio, OGURA Kunihiro, Sasaki Teruo

Принадлежит:

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

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Номер записи: 81

15-05-2014 дата публикации

Viscosity index improver, lubricant oil additive, and lubricant oil composition

Номер: US20140135243A1

Автор: Akira Takagi, Akira Yaguchi, Kazuo Tagawa, Shinichi Shirahama

Принадлежит: JX Nippon Oil and Energy Corp

A viscosity index improver of the present invention contains a star polymer obtained by a reaction of divinylbenzene with alkyl methacrylate containing stearyl methacrylate, the star polymer having a core part and an arm part, wherein the core part is derived from the divinylbenzene and the arm part is a polymer chain of the alkyl methacrylate. A lubricant oil additive and a lubricant oil composition of the present invention contain the above viscosity index improver.

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Номер записи: 82

03-03-2016 дата публикации

POLYALKYLENE GLYCOLS USEFUL AS LUBRICANT ADDITIVES FOR HYDROCARBON BASE OILS

Номер: US20160060561A1

Автор: Greaves Martin R., Zaugg-Hoozemans Evelyn A.

Принадлежит:

Provided are lubricant compositions comprising a base oil, a polyoxypropylene polymer, and a butyleneoxy based polyoxyalkylene polymer. The base oil, polyoxypropylene polymer and polyoxyalkylene polymer are soluble with one another. 2. The lubricant composition of wherein the initiator for the polyoxypropylene polymer and the polyoxyalkylene polymer is independently a diol or a monol.3. The lubricant composition of wherein the initiator for the polyoxypropylene polymer and the polyoxyalkylene polymer is independently a C-Calkyl alcohol.4. The lubricant composition of wherein the initiator for the polyoxypropylene polymer and the polyoxyalkylene polymer is independently butanol claim 1 , pentanol claim 1 , hexanol claim 1 , neopentanol claim 1 , isobutanol claim 1 , heptanol claim 1 , octanol claim 1 , 2-ethylhexanol claim 1 , nonanol claim 1 , decanol claim 1 , propylene glycol n-butyl ether claim 1 , 1 claim 1 ,2-propyleneglycol claim 1 , dipropylene glycol n-butyl ether claim 1 , or dodecyl alcohol.5. The lubricant composition of comprising up to 50 percent of the hydrocarbon base oil claim 1 , up to 80 percent of the polyoxypropylene polymer claim 1 , and up to 50 percent of the polyoxyalkylene polymer claim 1 , each by weight based on the total weight of the hydrocarbon base oil claim 1 , the polyoxypropylene polymer claim 1 , and the polyoxyalkylene polymer.6. The lubricant composition of comprising claim 1 , based on the total weight of the hydrocarbon base oil claim 1 , the polyoxypropylene polymer claim 1 , and the polyoxyalkylene polymer claim 1 , up to 50 weight percent of a Group I hydrocarbon base oil and up to 40 weight percent of the polyoxypropylene polymer and wherein the polyoxypropylene polymer has a molecular weight of up to 1300 g/mole and the polyoxyalkylene polymer is a PO/BO copolymer with a molecular weight up to 2400 g/mole.7. The lubricant composition of comprising claim 1 , based on the total weight of the hydrocarbon base oil claim 1 , ...

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Номер записи: 83

21-02-2019 дата публикации

OIL TEMPERED WIRES

Номер: US20190055490A1

Автор: Matsumoto Sadamu, Shiwaku Takayuki, Uwano Takafumi

Принадлежит:

An oil tempered wire includes a steel wire and a lubricant coating disposed around an outer circumference of the steel wire, wherein the lubricant coating includes a lubricant component resin and a binder resin, the lubricant component resin is at least one selected from polyacetals, polyimides, melamine resins, acrylic resins and fluororesins, the deposited mass of the lubricant coating is not less than 1.0 g/m2 and not more than 4.0 g/m2, and the surface roughness Rz of the steel wire is not more than 8.0 μm. 1. An oil tempered wire comprising a steel wire and a lubricant coating disposed around an outer circumference of the steel wire , whereinthe lubricant coating includes a lubricant component resin and a binder resin,the lubricant component resin is at least one selected from polyacetals, polyimides, melamine resins, acrylic resins and fluororesins,{'sup': 2', '2, 'the deposited mass of the lubricant coating is not less than 1.0 g/mand not more than 4.0 g/m, and'}the surface roughness Rz of the steel wire is not more than 8.0 μm.2. The oil tempered wire according to claim 1 , wherein the deposited mass of the lubricant component resin is not less than 0.3 g/mand not more than 3.0 g/m.3. The oil tempered wire according to claim 1 , wherein the lubricant coating disappears when heated at 400° C. for 20 minutes.4. The oil tempered wire according to claim 1 , wherein an oxide film is disposed on the surface of the steel wire.5. The oil tempered wire according to claim 1 , wherein an outer circumference of the lubricant coating is coated with a lubricating oil. The present invention relates to oil tempered wires. This application claims priority to Japanese Patent Application No. 2016-057418, filed Mar. 22, 2016, which is herein incorporated by reference in its entirety.From the point of view of controlling variations in spring shape, Patent Literatures 1 to 3 disclose oil tempered wires which have a lubricant coating of an amino acid compound on the surface of the ...

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Номер записи: 84

02-03-2017 дата публикации

STAR POLYMERS AND COMPOSITIONS THEREOF

Номер: US20170058072A1

Автор: Baum Marina, Davies Mark, Price David, Schober Barton J., Visger Daniel C.

Принадлежит:

The invention provides a composition comprising: (a) a star polymer comprising: (i) a core portion comprising a polyvalent (meth) acrylic monomer, oligomer or polymer thereof or a polyvalent divinyl non-acrylic monomer, oligomer or polymer thereof; and (ii) at least two arms of polymerized alkyl (meth)acrylate ester; and (b) an oil of lubricating viscosity, wherein the core portion further comprises a functional group of formula (I): 1. (canceled)2. The composition of wherein the star polymer comprises greater than about 7 arms.3. The composition of wherein the star polymer comprises greater than about 10 arms.4. The composition of wherein the polyvalent (meth) acrylic monomer is an acrylic or methacrylic acid polyol or a condensation product of a polyamine.5. The composition of claim 4 , wherein the polyvalent unsaturated (meth) acrylic monomer is ethylene glycol diacrylate claim 4 , ethylene glycol dimethacrylate claim 4 , diethylene glycol diacrylate claim 4 , diethylene glycol dimethacrylate claim 4 , glycerol diacrylate claim 4 , glycerol triacrylate claim 4 , mannitol hexaacrylate claim 4 , 4-cyclohexanediol diacrylate claim 4 , 1 claim 4 ,4-benzenediol dimethacrylate claim 4 , pentaerythritol tetraacrylate claim 4 , 1 claim 4 ,3-propanediol diacrylate claim 4 , 1 claim 4 ,5-pentanediol dimethacrylate claim 4 , bis-acrylates and methacrylates of polyethylene glycols of molecular weight 200-4000 claim 4 , polycaprolactonediol diacrylate claim 4 , pentaerythritol triacrylate claim 4 , 1 claim 4 ,1 claim 4 ,1-trimethylolpropane triacrylate claim 4 , pentaerythritol diacrylate claim 4 , pentaerythritol triacrylate claim 4 , pentaerythritol tetraacrylate claim 4 , triethylene glycol diacrylate claim 4 , triethylene glycol dimethacrylate claim 4 , 1 claim 4 ,1 claim 4 ,1-trimethylolpropane trimethacrylate claim 4 , hexamethylenediol diacrylate or hexamethylenediol dimethacrylate or an alkylene bis-(meth)acrylamide.611-. (canceled)12. The composition of wherein the ...

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Номер записи: 85

02-03-2017 дата публикации

COMPOSITION FOR HEAT CYCLE SYSTEM AND HEAT CYCLE SYSTEM

Номер: US20170058174A1

Автор: FUKUSHIMA Masato, MITSUOKA Hiroaki

Принадлежит: Asahi Glass Company, Limited

To provide a composition for a heat cycle system, which comprises a working fluid for heat cycle which has a low global warming potential and high stability, and which can replace R410A, and a heat cycle system employing the composition. 1. A composition for a heat cycle system comprising a working fluid for heat cycle containing 1 ,2-difluoroethylene , and a stabilizer for preventing deterioration of the working fluid for heat cycle.2. The composition for a heat cycle system according to claim 1 , wherein 1 claim 1 ,2-difluoroethylene is trans-1 claim 1 ,2-difluoroethylene claim 1 , cis-1 claim 1 ,2-difluoroethylene or a mixture thereof.3. The composition for a heat cycle system according to claim 1 , wherein the stabilizer is at least one stabilizer selected from an oxidation resistance-improving agent claim 1 , a heat resistance-improving agent and a metal deactivator.4. The composition for a heat cycle system according to claim 1 , wherein the stabilizer is at least one compound selected from the group consisting of a phenol compound claim 1 , an unsaturated hydrocarbon group-containing aromatic compound claim 1 , an aromatic amine compound claim 1 , an aromatic thiazine compound claim 1 , a terpene compound claim 1 , a quinone compound claim 1 , a nitro compound claim 1 , an epoxy compound claim 1 , a lactone compound claim 1 , an orthoester compound claim 1 , a mono- or di-alkali metal salt compound of phthalic acid claim 1 , and a thiodiphenyl ether hydroxide compound.5. The composition for a heat cycle system according to claim 1 , which contains the stabilizer in an amount of at least 1 mass ppm.6. The composition for a heat cycle system according to claim 1 , wherein the proportion of 1 claim 1 ,2-difluoroethylene is at least 20 mass % based on the working fluid for heat cycle.7. The composition for a heat cycle system according to claim 1 , wherein the proportion of 1 claim 1 ,2-difluoroethylene is from 20 to 80 mass % based on the working fluid for heat ...

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Номер записи: 86

17-03-2022 дата публикации

POLYALKYLENE GLYCOL COMPOUND

Номер: US20220081513A1

Автор: NAKAJIMA So, Yoshida Yukio

Принадлежит: IDEMITSU KOSAN CO.,LTD.

A polyalkylene glycol-based compound of formula (1): 2. The polyalkylene glycol-based compound according to claim 1 , wherein when the carbon number of each of the monovalent hydrocarbon group claim 1 , the monovalent aromatic hydrocarbon group claim 1 , the monovalent acyl group claim 1 , and the monovalent oxygen-containing hydrocarbon group claim 1 , which are selected as Rand R claim 1 , is 16 or less claim 1 , then a hydroxyl value is 50 mgKOH/g or less.3. The polyalkylene glycol-based compound of claim 1 , wherein a volume resistivity at 25° C. is 0.0030 TΩ·m or more.4. A lubricating oil composition comprising the polyalkylene glycol-based compound of .5. The lubricating oil composition according to claim 4 , further comprising at least one additive selected from an antioxidant claim 4 , an oiliness improver claim 4 , an oxygen scavenger claim 4 , an extreme pressure agent claim 4 , a copper deactivator claim 4 , a rust inhibitor claim 4 , an anti-foaming agent claim 4 , and a viscosity index improver. The present invention relates to a polyalkylene glycol-based compound. In more detail, the present invention relates to a polyalkylene glycol-based compound and a lubricating oil composition containing the polyalkylene glycol-based compound.As synthetic oils to be used for a lubricating oil composition, a polyalkylene glycol-based compound is known (see PTL 1). For example, for a car air conditioner of belt drive system which is mounted in a gasoline engine car or a diesel engine car, a lubricating oil composition using a polyalkylene glycol-based compound as the synthetic oil is broadly utilized.PTL 1: JP-T-2014-534316Now, hybrid cars and electric cars are becoming widespread recently. Following this, the car air conditioner which is mounted in a hybrid car or an electric car is also shifting from a belt drive system toward a motor drive system. In the car air conditioner of a motor drive system (car air conditioner of a motor drive system in which an electric ...

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Номер записи: 87

17-03-2022 дата публикации

LUBRICANT BASE STOCK

Номер: US20220081636A1

Автор: BONNER Paul, DUNCAN Kevin John

Принадлежит: Croda International PLC

The present invention relates to a lubricant base stock, lubricant formulations, a method of lubricating a rotating shaft within a stern tube and the use of a lubricant base stock. The base stock and lubricant formulations may be particularly suited for use in aqueous environments (including fresh water or salt water). A lubricant base stock comprising a first (EO)(PO)(EO) block co-polymer and a second (EO)(PO)(EO) block co-polymer which is different from the first (EO)(PO)(EO) block co-polymer in a marine lubricant formulation wherein the lubricant base stock has a density of at least 1028 kg/mat 20° C. and at most 1022 kg/mat 40° C. in particular is provided. 1. A lubricant base stock comprising:{'sup': '2', 'a) at least 10 wt % of a first polyalkylene glycol block co-polymer having an (EO)(PO)(EO) block structure and having a kinematic viscosity at 40° C. of at most 150 mm/s (cSt); and'}b) at least 10 wt % of a second polyalkylene glycol block co-polymer having an (EO)(PO)(EO) block structure and having a kinematic viscosity at 40° C. different to that of the first polyalkylene glycol block co-polymer;wherein the total wt % of polyalkylene glycol block co-polymers in the lubricant base stock is at least 87 wt %;wherein the lubricant base stock comprises less than 8 wt % water; and{'sup': 2', '2, 'wherein the lubricant base stock has a kinematic viscosity at 40° C. from 70 mm/s (cSt) to 250 mm/s.'}2. A lubricant base stock according to wherein the ratio of the number average molecular weights of the first and second polyalkylene glycol block co-polymers is at most 8:1.3. A lubricant base stock according to wherein the ratio of the kinematic viscosities at 40° C. of the first and second polyalkylene glycol block co-polymers is at most 5:1.4. A lubricant base stock according to comprising less than 10 wt % of polyalkylene glycol random co-polymer.5. A lubricant base stock according to comprising less than 10 wt % of polyalkylene glycol homo-polymer.6. A lubricant ...

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Номер записи: 88

28-02-2019 дата публикации

Ashless engine lubricants for high temperature applications

Номер: US20190062667A1

Автор: Eugine Choi, Luca Salvi, Matthew W. BOLAND, Zhisheng Gao

Принадлежит: ExxonMobil Research and Engineering Co

An ashless lubricating oil having a lubricating oil base stock as a major component, and a mixture of (i) at least one ashless antiwear additive, (ii) at least one ashless detergent, and (iii) at least one aminic antioxidant, as minor components. The lubricating oil base stock is a branched polyol ester. The lubricating oil base stock is present in an amount from about 30 to about 99.8 mass percent, based on the total mass of the ashless lubricating oil. A method for improving oxidative stability and high temperature stability of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using the ashless lubricating oil. The ashless lubricating oil is useful as a passenger vehicle engine oil (PVEO).

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Номер записи: 89

28-02-2019 дата публикации

ASHLESS ENGINE LUBRICANTS FOR HIGH TEMPERATURE APPLICATIONS

Номер: US20190062668A1

Автор: BOLAND Matthew W., CHOI Eugine, GAO Zhisheng, SALVI Luca

Принадлежит:

An ashless lubricating oil having a lubricating oil base stock as a major component, and a mixture of (i) at least one ashless antiwear additive, (ii) at least one ashless detergent, and (iii) at least one aminic antioxidant, as minor components. The lubricating oil base stock is a monoester obtained by a) reacting one Guerbet alcohol of 8 to 20 carbon atoms with a Guerbet acid, a linear or branched acid of 6 to 20 carbon atoms or b) reacting one linear or branched alcohol with at least 6 to 20 carbon atoms with a Guerbet acid of 8 to 20 carbon atoms. The lubricating oil base stock is present in an amount from 30 to 99.8 wt. % of the oil. A method for improving oxidative stability and high temperature stability of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using the ashless lubricating oil. 1. A method for improving oxidative stability of a lubricating oil , in an engine or other mechanical component lubricated with the lubricating oil by using as the lubricating oil an ashless formulated oil , said ashless formulated oil having a composition comprising a lubricating oil base stock as a major component; and a mixture of (i) at least one ashless antiwear additive , (ii) at least one ashless detergent , and (iii) at least one aminic antioxidant , as minor components; wherein the lubricating oil base stock includes at least one monoester derived by:a) reacting one Guerbet alcohol of 8 to 20 carbon atoms with a Guerbet acid, a linear acid or a branched acid of 6 to 20 carbon atoms, orb) reacting one linear alcohol or branched alcohol with at least 6 to 20 carbon atoms with a Guerbet acid of 8 to 20 carbon atomswherein the lubricating oil base stock is present in an amount from about 30 to about 99.8 mass percent, based on the total mass of the lubricating oil.2. The method of wherein oxidative stability is improved claim 1 , as compared to oxidative stability achieved using a conventional synthetic engine oil.3. ...

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Номер записи: 90

28-02-2019 дата публикации

CUTTING FLUID, CUTTING METHOD, AND SMOOTHNESS IMPROVER FOR CUT SURFACE

Номер: US20190062670A1

Автор: IZUMI Sho, SUWABE Hitoshi, TOCHIO Takumi

Принадлежит:

[Problem] 15-. (canceled)6. A cutting method having a step of cutting a workpiece material by fixed abrasive machining with a wire saw using , as a cutting fluid , a sugar solution containing any sugar alcohol selected from sorbitol , reduced starch syrup and reduced maltose syrup.7. A cutting method having the step of cutting a workpiece material using , as a cutting fluid , a sugar solution containing any sugar alcohol selected from sorbitol , reduced starch syrup and reduced maltose syrup and having said sugar alcohol concentration of 35% by mass or higher.8. The cutting method according to claim 7 , wherein said sugar alcohol concentration in said sugar solution is 50% by mass or higher. The present invention relates to a cutting fluid, a cutting method, and a smoothness improver for a cut surface. Specifically, the present invention relates to a cutting fluid and a smoothness improver for a cut surface which can improve the smoothness of a cut surface of a workpiece material and reduce the chipping of the workpiece material during cutting, and a cutting method using the cutting fluid.Cutting fluids are generally used in order to achieve improvement in machining accuracy, improvement in the surface texture of works, efficient cutting, prolongation of tool life, etc. by effects such as reduction in friction during cutting, cooling of heat generated by cutting, and washing of scraps. The cutting fluids are broadly classified into water-insoluble and water-soluble ones and include various types. For example, petroleum-derived ethylene glycol or propylene glycol, or a water-soluble cutting fluid with any of these polymers as a base material has heretofore been used in cutting difficult-to-cut hard brittle ingot such as silicon for semiconductors, ceramic or glass in high industrial demand using a wire saw.However, the cutting fluid with an ethylene glycol or propylene glycol substance as a base material presents the following problems (i) to (iv):(i) a cutting ...

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Номер записи: 91

10-03-2016 дата публикации

OIL SOLUBLE POLYOXYBUTYLENE POLYMERS AS FRICTION MODIFIERS FOR LUBRICANTS

Номер: US20160068780A1

Автор: Greaves Martin R., Zaugg-Hoozemans Evelyn A.

Принадлежит:

Provided are lubricant compositions comprising a hydrocarbon base oil and a polyoxybutylene polymer prepared by polymerizing butylene oxide with a monol initiator and having a number average molecular weight ranging from 800 g/mol to 1200 g/mol. The polyoxybutylene polymer functions as a highly active friction-modifier additive. 2. (canceled)3. (canceled)4. The lubricant composition of comprising up to 10 weight percent of the polyoxybutylene polymer based on the total weight of the hydrocarbon base oil and the polyoxybutylene polymer.5. (canceled)6. (canceled)7. A method for reducing friction between lubricated surfaces claim 1 , the method comprising: lubricating a surface with the lubricant composition of claim 1 , wherein friction is reduced relative to a composition free of the polyoxybutylene polymer.8. A method of lubricating a mechanical device claim 1 , the method comprising using the lubricant composition of to lubricate the mechanical device.9. The lubricant of wherein the polyoxybutylene polymer is a propylene blycol n-butyl ether initiated butylene oxide homo-polymer with a kinematic viscosity at 40 degrees Celsius of 60 centiStokes and an average number average molecular weight of 1000 grams per mole. This invention relates generally to a lubricant composition. More specifically, the invention relates to a lubricant composition containing a base oil and a polyoxybutylene polymer as a friction-modifier additive, wherein the polyoxybutylene polymer and the base oil are soluble in one another.Increasing interest in developing lubricants that provide low friction and which are energy efficient in equipment for both the automotive and industrial lubricants industries is a macro trend across the lubricant industry today. One important way to reduce friction is to use friction-modifier additives in lubricant compositions. There has been considerable research carried out to explore the performance and mechanisms of action of friction-modifying additives across ...

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Номер записи: 92

09-03-2017 дата публикации

LITHIUM-BASED THICKENER AND GREASE COMPOSITION INCLUDING THE SAME

Номер: US20170066992A1

Автор: Kim Jae Hyeon

Принадлежит: HYUNDAI MOTOR COMPANY

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

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Номер записи: 93

15-03-2018 дата публикации

LUBRICATING OIL COMPOSITION

Номер: US20180072962A1

Автор: KUSUHARA Shintaro, Matsui Shigeki, Wada Kotaro

Принадлежит: JXTG NIPPON OIL & ENERGY CORPORATION

A lubricating oil composition includes: a lubricant base having a kinematic viscosity at 100° C. of 1.0 to 10 mm/s and % Cof no less than 70; (A) 0.1 to 30 mass % of a poly(meth)acrylate viscosity index improver having a PSSI of no more than 5, a weight average molecular weight of 10,000 to 500,000, a ratio A/B of less than 2.4 and a ratio C/B of less than 1.4, the ratio A/B being a ratio of a viscosity increase effect A on kinematic viscosity at 100° C. to a viscosity increase effect B on HTHS viscosity at 150° C., and the ratio C/B being a ratio of a viscosity increase effect C on kinematic viscosity at 150° C. to the viscosity increase effect B on HTHS viscosity at 150° C.; and (B) 0.01 to 2.0 mass % of a friction modifier. 2. The lubricating oil composition according to claim 1 ,wherein the lubricant base oil has a NOACK evaporation loss at 250° C. of less than 15 mass %.3. The lubricating oil composition according to claim 2 ,{'sup': '4', 'wherein the (A) viscosity index improver has a ratio (Mw/PSSI) of the weight average molecular weight (Mw) to the PSSI of no less than 1×10.'}4. The lubricating oil composition according to claim 2 ,wherein the (B) friction modifier is a molybdenum-based friction modifier.5. The lubricating oil composition according to claim 2 ,wherein the lubricating oil composition has a NOACK evaporation loss at 250° C. of no more than 15 mass %.6. The lubricating oil composition according to claim 1 ,wherein the lubricant base oil has a NOACK evaporation loss at 250° C. of no less than 15 mass %; andthe poly(meth)acrylate viscosity index improver has a weight average molecular weight of 10,000 to 400,000.7. The lubricating oil composition according to claim 6 ,{'sup': '4', 'wherein the (A) viscosity index improver has a ratio (Mw/PSSI) of the weight average molecular weight (Mw) to the PSSI of no less than 1×10.'}8. The lubricating oil composition according to claim 6 ,wherein the (B) friction modifier is a molybdenum-based friction ...

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Номер записи: 94

07-03-2019 дата публикации

Viscosity Index Improvers with defined Molecular Weight Distributions

Номер: US20190071615A1

Автор: LIPPERT Sarah, Schimossek Klaus, SCHÖLLER Katrin, Tschepat Wolfgang

Принадлежит: Evonik Oil Additives GmbH

Polyalkyl(meth)acrylate based comb polymers with weight-average molecular weights of 700,000 g/mol or greater and number-average molecular weights of 130,000 g/mol or greater can be used to improve the high temperature-high shear performance of lubricant compositions, especially of engine oil (EO) compositions. These polymers can be obtained in a reaction mixture comprising monomers, a dilution oil, and an initiator. The resulting lubricant compositions can have improved kinematic viscosity and high temperature high shear performance. 2. The polyalkyl(meth)acrylate based comb polymer according to claim 1 , wherein the weight-average molecular weight Mis from 700 claim 1 ,000 to 2 claim 1 ,000 claim 1 ,000 g/mol and the number-average molecular weight Mis from 130 claim 1 ,000 to 300 claim 1 ,000 g/moll claim 1 , determined by size exclusion chromatography (SEC) using commercially available polymethylmethacrylate standards.4. The polyalkyl(meth)acrylate based comb polymer according to claim 1 , comprising:(a) 10 to 25% by weight of the ester of (meth)acrylic acid and a hydroxylated hydrogenated polybutadiene;{'sub': '4-18', '(b) 0% to 5% by weight of at least one Calkyl acrylate;'}(c) 0% to 0.3% by weight of methyl methacrylate;(d) 60% to 75% by weight of n-butyl methacrylate;{'sub': '10-30', '(e) 5% to 20% by weight of the at least one Calkyl (meth)acrylate; and'}(f) 0% to 2% by weight of at least one styrene monomer.5. A method of increasing KVand in parallel decreasing HTHSand HTHSof a lubricating oil composition claim 1 , the method comprising adding the polyalkyl(meth)acrylate based comb polymer according to to a lubricating oil composition in need thereof.7. The additive composition according to claim 6 , wherein the weight-average molecular weight Mof component (B) is from 700 claim 6 ,000 to 2 claim 6 ,000 claim 6 ,000 g/mol and the number-average molecular weight Mis from 130 claim 6 ,000 to 300 claim 6 ,000 g/mol claim 6 , determined by size exclusion ...

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Номер записи: 95

16-03-2017 дата публикации

COATING COMPOSITION FOR LUBRICATING COATING FILM

Номер: US20170073605A1

Автор: SASAKI Takahiko, YAMAGUCHI Tetsuji

Принадлежит:

A coating composition for a lubricating coating film includes: (A) a phenolic resin (B) an epoxy resin having an epoxy equivalent weight of 600 to 4000; and (C) at least one type of solid lubricant. The epoxy equivalent weight is generally defined by the number average molecular weight per the number of epoxy groups in a single molecule. The coating composition has a weight ratio of component (A) to the total weight of component (A) and component (B) of at least 50 weight %. A lubricating coating film, formed from the coating composition, has a high level of flexibility on surfaces of various base materials. 1. A coating composition for a lubricating coating film , the coating composition comprising:(A) a phenolic resin;(B) an epoxy resin having an epoxy equivalent weight of 600 to 4000, the epoxy equivalent weight defined (by the number average molecular weight per the number of epoxy groups in a single molecule; and(C) at least one type of solid lubricant;wherein a weight ratio of component (A) per the total weight of component (A) and component (B) is at least 50 weight %.2. The coating composition according to claim 1 , wherein the epoxy equivalent weight of component (B) is 800 to 1200.3. The coating composition according to claim 1 , wherein the weight ratio of component (A) per the total weight of component (A) and component (B) is at least 60 weight % and not more than 80 weight %.4. The coating composition according to claim 1 , wherein component (C) comprises at least one or more types of substances selected from fluororesin claim 1 , polyethylene resin claim 1 , polyamide resin claim 1 , and mixtures thereof.5. The coating composition according to claim 1 , wherein component (C) comprises one or more types of metal oxide or metal nitride selected from titanium nitride claim 1 , titanium oxide claim 1 , aluminum oxide claim 1 , silicon nitride claim 1 , silicon dioxide claim 1 , and mixtures thereof.6. The coating composition according to claim 1 , wherein ...

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Номер записи: 96

05-03-2020 дата публикации

VISCOSITY INDEX IMPROVER AND LUBRICATING OIL COMPOSITION

Номер: US20200071632A1

Автор: HAGIHARA Hiroki, HASHIMOTO Hiroki, SAKAGUCHI Ayumu

Принадлежит: SANYO CHEMICAL INDUSTRIES, LTD.

A viscosity index improver containing a copolymer (A) whose essential constituent monomer is a monomer (a) having a number average molecular weight of 800 to 4,000 represented by the following formula (1), the copolymer (A) having a solubility parameter in the range of 9.00 to 9.40: 3. The viscosity index improver according to claim 1 ,{'sup': '2', 'wherein in the formula (1), a structure derived from butadiene constituting a part or all of Rhas a 1,2-adduct/1,4-adduct molar ratio of 5/95 to 95/5.'}4. The viscosity index improver according to claim 1 ,wherein the copolymer (A) contains, as a constituent monomer, 10 to 50% by weight of the monomer (a) based on the weight of the copolymer (A).5. The viscosity index improver according to claim 1 ,wherein the copolymer (A) has a weight average molecular weight of 5,000 to 2,000,000.6. The viscosity index improver according to claim 1 ,wherein the copolymer (A) is a copolymer further containing an alkyl (meth)acrylate (b) having a C1-C4 alkyl group as a constituent monomer.10. The viscosity index improver according to claim 1 ,wherein the copolymer (A) is a copolymer further containing at least one monomer selected from the group consisting of a nitrogen atom-containing monomer (f), a hydroxyl group-containing monomer (g), a phosphorus atom-containing monomer (h), and an aromatic ring-containing vinyl monomer (i).12. A lubricating oil composition comprising:at least one base oil selected from the group consisting of API Group I to IV base oils, GTL base oils, and synthetic lubricant base oils; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the viscosity index improver according to ,'}wherein the amount of the copolymer (A) in the lubricating oil composition is 0.1 to 20% by weight.13. The lubricating oil composition according to claim 12 , further containing at least one additive selected from the group consisting of dispersants claim 12 , detergents claim 12 , antioxidants claim 12 , oiliness improvers claim 12 , ...

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Номер записи: 97

14-03-2019 дата публикации

POLYALKYLENE GLYCOL-BASED LUBRICANT COMPOSITION

Номер: US20190078036A1

Автор: BROUTIN Laura, KHELIDJ-SUEDMEYER Nadjet, OBRECHT Nicolas

Принадлежит:

Disclosed is a lubricant composition including: an oil chosen from polyalkyl glycols (PAG or polyalkylene glycols); and an anti-wear additive chosen from compounds of formula (I) 114-. (canceled)20. Composition according to comprising 1 to 99.5% by weight of PAG.21. Composition according to comprising from 1 to 30% by weight of PAG.22. Composition according to comprising from 40 to 99.5% by weight of PAG.23. Composition according to comprising from 5 to 80% by weight of PAG.25. Composition according to comprising from 0.1 to 3% by weight of compound of formula (I).26. Composition according to comprising a lubricating base oil.27. Composition according to claim 15 , further comprising an organic friction modifier selected from esters.28. Method of lubricating a motor vehicle claim 15 , preferably a motor vehicle claim 15 , comprising at least one step of bringing the motor into contact with the lubricating composition according to . The present application relates to the field of lubricating compositions, especially lubricating compositions for a vehicle engine, in particular for a motor vehicle engine. In particular, the present application relates to lubricating compositions based on polyalkylated glycols (PAG or polyalkylene glycols) for the lubrication of a vehicle engine, especially a motor vehicle.Energy efficiency and reduced fuel consumption of automotive engines is a growing concern. It is known that engine lubricants used in automotive vehicles play an important role in this respect.To formulate economic fuel lubricants or fuel economizers, it is known to play on the viscosity of the lubricating bases used. It is also known to use polymers to improve the viscosity index (VI), or to use friction modifiers (MF). However, the polymers improving the viscosity index have the disadvantage of degrading the engine cleanliness of the lubricating compositions in which they are used. However, current engines have high thermal stresses that cause significant deposition ...

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Номер записи: 98

12-06-2014 дата публикации

LUBRICATING COATING AGENT FOR PLASTIC WORKING AND METHOD FOR PRODUCING THE SAME

Номер: US20140162917A1

Автор: Ishii Hitoshi, KOMIYAMA Shinobu, Mori Kazuhiko, SERITA Atsushi

Принадлежит: Henkel AG & Co. KGaa

To provide a lubricating coating agent for plastic working, containing a non-black solid lubricating material, and a metal material coated with the agent, which enable highly difficult forging that has been conventionally difficult to practically apply to anything except lubricating coating films containing a black solid lubricant typified by molybdenum disulfide. The problems can be achieved by means of a lubricating coating agent for plastic working, which is characterized by containing, at 5 mass % or more in terms of solid content ratio in a coating film, a calcium sulfate hydrate with a particular scale-like crystal shape among calcium sulfate hydrates deposited by reacting a sulfuric acid or a sulfate with a calcium compound in water, and a metal material coated with the agent. 1. A lubricating coating agent for plastic working containing , at 5 mass % or more in terms of solid content ratio in a coating film , a calcium sulfate hydrate deposited by reacting a sulfuric acid or a sulfate with a calcium compound in water , which is 1.5 μM or less in thickness of crystal and scale-like.25-. (canceled) The present invention relates to a lubricating coating agent for plastic working, which is formed on the surface of a material to be worked or a mold for the purpose of lubrication and seizure prevention in plastic working for metal, and a metal material coated with the agent.Plastic working such as wire drawing, pipe drawing, plate press, heading, and forging requires a lubricating film at the frictional interface between a mold and a material to be worked, and if this lubricating film is insufficient, defects will be caused such as difficulty in working into desired shapes and seizure formation. In particular, cold forging produces an extremely high contact pressure between a mold and a material to be worked, and the mold and the material to be worked relatively slide with the enlarged surface of the material to be worked even to dozens of times. While the ...

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Номер записи: 99

31-03-2022 дата публикации

LUBRICATING COMPOSITIONS HAVING A MIXED DISPERSANT ADDITIVE PACKAGE

Номер: US20220098509A1

Автор: Jones Joanne L., Tang Steven

Принадлежит: THE LUBRIZOL CORPORATION

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

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Номер записи: 100