POLYPROPYLENE-BASED COMPOSITIONS WITH IMPROVED IMPACT RESISTANCE AND AESTHETIC PROPERTIES

An impact copolymer polypropylene composition may include a polypropylene-based matrix polymer; and from 25 to 45 wt % of an ethylene-propylene copolymer rubber (EPR) phase, based on the total weight of the composition, wherein the EPR phase comprises 30 to 38 wt % ethylene and a xylene solubles (XS...

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Bibliographische Detailangaben
Hauptverfasser:	Werlang, Moisés Magalhães, Miller, William Scott, Carr, Joel Matthew
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	An impact copolymer polypropylene composition may include a polypropylene-based matrix polymer; and from 25 to 45 wt % of an ethylene-propylene copolymer rubber (EPR) phase, based on the total weight of the composition, wherein the EPR phase comprises 30 to 38 wt % ethylene and a xylene solubles (XS) content ranging from 25 to 45 wt % as determined by acetone precipitation, and wherein the ICP composition has an Izod impact strength ranging from 180 to 600 J/m, as measured according to ASTM D256A at −20° C.