Dispersant polymethacrylate viscosity index improvers

It has been found that by polymerizing several alkyl methacrylates and N,N-dialkylaminoalkyl methacrylamide monomers and controlling the component weight ratio, a novel polymer with surprising properties, when used as an additive for hydrocarbon lubricating oils, can be produced. The polymer of this...

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Bibliographische Detailangaben
Hauptverfasser:	KINKER, BERNARD GEORGE, GORE, ROBERT HOWARD
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LUBRICANTS LUBRICATING COMPOSITIONS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:	It has been found that by polymerizing several alkyl methacrylates and N,N-dialkylaminoalkyl methacrylamide monomers and controlling the component weight ratio, a novel polymer with surprising properties, when used as an additive for hydrocarbon lubricating oils, can be produced. The polymer of this invention demonstrates superior properties as a viscosity index improver and a detergent dispersant and, in some instances, eliminates the need for a pour point depressant.