Alpha-olefin/isobutene diblock copolymers

The invention relates to diblock copolymers of formula A-B which are constituted of a polymer block A which is substantially constituted of a-olefin entities with 6 to 22 carbon atoms, and a polymer block B which is substantially constituted of isobutene entities. The invention also relates to a met...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HANEFELD PHILLIP, URBAN RAINER, MACH HELMUT, RATH HANS PETER
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON FUELS 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:	The invention relates to diblock copolymers of formula A-B which are constituted of a polymer block A which is substantially constituted of a-olefin entities with 6 to 22 carbon atoms, and a polymer block B which is substantially constituted of isobutene entities. The invention also relates to a method for producing said diblock copolymers, to their use in lubricant compositions and to lubricant compositions containing said diblock copolymers.