Star copolymer and use thereof as a viscosity improver

The present invention relates to a star copolymer (C) including at least 10 wt.% of units derived from styrene monomer and including arms that include a statistical copolymer (EP) including ethylene units and propylene units, and the method for preparing same. The invention also relates to the use t...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TASSIN JEAN-FRAN OIS, DESCROIX GREGORY, CHAVEROUX DAMIEN, IOVINE RAPHAELE
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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