Herstellung eines Propfcopolymer-Kompatibilitätsstoffes zur Verwendung als Öladditiv

A compatibilizer for stabilizing polymer blends of olefin copolymer and polymethacrylate oil additives is prepared by graft polymerizing hydrocarbon backbone polymer with alkyl methacrylate monomer, in the presence of a free radical initiator, at a temperature of from 60 DEG C to 175 DEG C. The comp...

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Bibliographische Detailangaben
Hauptverfasser:	LAI, CHUNG-YIN, WESTCHESTER, PA. 19382, US, NEVEU, CHRISTIAN DANIEL, F-94440 SANTENY, FR, GALLUCCIO, RICHARD ADRIAN, PERKASIE, PA. 18944, US
Format:	Patent
Sprache:	ger
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LUBRICANTS LUBRICATING COMPOSITIONS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PEAT PETROLEUM, GAS OR COKE INDUSTRIES POLISHES 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:	A compatibilizer for stabilizing polymer blends of olefin copolymer and polymethacrylate oil additives is prepared by graft polymerizing hydrocarbon backbone polymer with alkyl methacrylate monomer, in the presence of a free radical initiator, at a temperature of from 60 DEG C to 175 DEG C. The compatibilizer so formed comprises a graft copolymer-containing solution having a polymer solids content of from 40 to 60 percent, a viscosity of at least 8 x 10 M S at 100 DEG C, and a weight percent conversion of alkyl methacrylate monomer to polymer of no less than 90%.