POLYOLEFIN RESIN COMPOSITION

申请公布号：

EP0976787(A4)

申请号：

EP19980907198

申请日期：

1998.03.12

申请公布日期：

2000.05.24

申请人：

CHISSO CORPORATION

发明人：

ENOMOTO, TAKEHIKO;OKAYAMA, CHIKASHI

分类号：

C08L53/00

主分类号：

C08L53/00

摘要：

A polyolefin type resinous composition comprising 99 to 80% by weight of a propylene type block copolymer ÄAÜ and 1 to 20% by weight of an ethylene type or styrene type elastomer ÄBÜ which being superior in a transparency, a coloring property and a dimensional stability is provided. The said polyolefin composition comprises the said ÄAÜ consisting of a propylene homopolymer component and an ethylene-propylene copolymer component having respective limiting viscosities: Ä eta ÜPP, Ä eta ÜRC, weight %: WPP, WRC, and melt flow rates: ÄMFRÜPP, ÄMFRÜRC, as well as the said ÄBÜ having a limiting viscosity: Ä eta ÜR and a melt flow rate: ÄMFRÜR, in such a way that the following relationships being established; <MATH>