LUBRICATING OIL COMPOSITION
PROBLEM TO BE SOLVED: To provide a lubricating oil composition that enhances lubricating performance in a diesel engine equipped with an exhausted gas recirculation (EGR) apparatus. SOLUTION: The lubricating oil composition includes a large amount of an oil having a lubricating viscosity, a small am...
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| creator | MINOTTI MICHAEL T FETTERMAN GLEN P GUTIERREZ ANTONIO IRVING MATTHEW D BANSAL JAI G RITCHIE ANDREW J D LOCKE CHRISTOPHER J EMERT JACOB |
| description | PROBLEM TO BE SOLVED: To provide a lubricating oil composition that enhances lubricating performance in a diesel engine equipped with an exhausted gas recirculation (EGR) apparatus. SOLUTION: The lubricating oil composition includes a large amount of an oil having a lubricating viscosity, a small amount of at least one high-molecular weight polymer comprising (i) a copolymer of a hydrogenated polymer of a monovinyl aromatic hydrocarbon and a conjugated diene polymer where the portion of the hydrogenated polymer of the monovinyl aromatic hydrocarbon accounts for at least 20 mass% of the copolymer, (ii) an olefin copolymer bearing an alkyl or aryl amine or amide group, a nitrogen-containing heterocyclic group or an ester bond and/or (iii) a derivative of an acrylate or alkyl acrylate copolymer bearing a dispersant group, and a small amount of at least one neutral and/or overbasic metal-containing cleaning agent selected from among a phenate/salicylate mixed cleaning agent, a phenate cleaning agent containing no sulfur and a mixture thereof. COPYRIGHT: (C)2011,JPO&INPIT |
| format | Patent |
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SOLUTION: The lubricating oil composition includes a large amount of an oil having a lubricating viscosity, a small amount of at least one high-molecular weight polymer comprising (i) a copolymer of a hydrogenated polymer of a monovinyl aromatic hydrocarbon and a conjugated diene polymer where the portion of the hydrogenated polymer of the monovinyl aromatic hydrocarbon accounts for at least 20 mass% of the copolymer, (ii) an olefin copolymer bearing an alkyl or aryl amine or amide group, a nitrogen-containing heterocyclic group or an ester bond and/or (iii) a derivative of an acrylate or alkyl acrylate copolymer bearing a dispersant group, and a small amount of at least one neutral and/or overbasic metal-containing cleaning agent selected from among a phenate/salicylate mixed cleaning agent, a phenate cleaning agent containing no sulfur and a mixture thereof. COPYRIGHT: (C)2011,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL BLASTING CHEMISTRY COMBUSTION ENGINES FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LIGHTING LIQUEFIED PETROLEUM GAS LUBRICANTS LUBRICATING COMPOSITIONS MECHANICAL ENGINEERING METALLURGY NATURAL GAS PEAT PETROLEUM, GAS OR COKE INDUSTRIES SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION WEAPONS |
| title | LUBRICATING OIL COMPOSITION |
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