REACTOR THERMOPLASTIC POLYOLEFIN ELASTOMER COMPOSITION

A thermoplastic elastomer composition is disclosed comprising about 100 parts by weight of component (A) and about 20 to about 100 parts by weight of component (B). Component (A) is a polypropylene resin comprising about 60 to about 90% by weight of component (i) and about 40 to about 10% by weight...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OHTANI KOUSUKE, IJICHI YASUHITO, BOKHARI NADEEM AKHTAR
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	A thermoplastic elastomer composition is disclosed comprising about 100 parts by weight of component (A) and about 20 to about 100 parts by weight of component (B). Component (A) is a polypropylene resin comprising about 60 to about 90% by weight of component (i) and about 40 to about 10% by weight of component (ii). Component (i) is a propylene homopolymer or copolymer of propylene and at least one monomer group consisting of ethylene and an α-olefin having 4 or more carbon atoms. Component (ii) is an ethylene-α-olefin copolymer comprising about 20 to about 50% by weight ethylene units. Component (B) is an ethylene-α-olefin elastomer comprising about 60 to about 85% by weight ethylene units and about 40 to about 15% by weight of α-olefin units. Component (B) has a Mooney stress relaxation area of from 180 to 300.