Polyolefin type resinous composition

A polyolefin type resinous composition comprising 99 to 80% by weight of a propylene type block copolymer [A] and 1 to 20% by weight of an ethylene type or styrene type elastomer [B] which being superior in a transparency, a coloring property and a dimensional stability is provided.The said polyolef...

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Bibliographische Detailangaben
Hauptverfasser:	ENOMOTO TAKEHIKO, OKAYAMA CHIKASHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A polyolefin type resinous composition comprising 99 to 80% by weight of a propylene type block copolymer [A] and 1 to 20% by weight of an ethylene type or styrene type elastomer [B] which being superior in a transparency, a coloring property and a dimensional stability is provided.The said polyolefin composition comprises the said [A] consisting of a propylene homopolymer component and an ethylene propylene copolymer component having respective limiting viscosities: [eta]PP, [eta]RC, weight %: WPP, WRC, and melt flow rates: [MFR]PP, [MFR]RC, as well as the said [B] having a limiting viscosity: [eta]R and a melt flow rate: [MFR]R, in such a way that the following relationships being established;and