发明授权
US5464905A Ethylene/.alpha.-olefin copolymer composition, graft modified
ethylene/.alpha.-olefin copolymer composition, ethylene copolymer
composition, and multi-stage olefin polymerization process
失效
乙烯/α-烯烃共聚物组合物，接枝改性乙烯/α-烯烃共聚物组合物，乙烯共聚物组合物和多阶段烯烃聚合方法
- 专利标题： Ethylene/.alpha.-olefin copolymer composition, graft modified ethylene/.alpha.-olefin copolymer composition, ethylene copolymer composition, and multi-stage olefin polymerization process
- 专利标题（中）： 乙烯/α-烯烃共聚物组合物，接枝改性乙烯/α-烯烃共聚物组合物，乙烯共聚物组合物和多阶段烯烃聚合方法
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申请号： US154467申请日： 1993-11-18
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公开(公告)号： US5464905A公开(公告)日： 1995-11-07
- 发明人: Toshiyuki Tsutsui , Ken Yoshitsugu , Mamoru Takahashi , Akira Todo , Seiji Ohta , Hajime Inagaki
- 申请人： Toshiyuki Tsutsui , Ken Yoshitsugu , Mamoru Takahashi , Akira Todo , Seiji Ohta , Hajime Inagaki
- 申请人地址： JPX Tokyo
- 专利权人： Mitsui Petrochemical Industries, Ltd.
- 当前专利权人： Mitsui Petrochemical Industries, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX4-310616 19921119; JPX4-310632 19921119
- 主分类号： C08F4/659
- IPC分类号： C08F4/659 ; C08F4/6592 ; C08F10/00 ; C08F210/16 ; C08F255/02 ; C08F255/04 ; C08F255/08 ; C08F287/00 ; C08F297/08 ; C08L23/04 ; C08L23/08 ; C08L51/06 ; C08L23/16 ; C08L23/18
摘要：
An ethylene/.alpha.-olefin copolymer composition containing a first and second ethylene/.alpha.-olefin copolymer is disclosed. The first ethylene/.alpha.-olefin copolymer is prepared in the prsence of a polymerization catalyst containing an organoaluminum oxy compound and at least two kinds of metallocene compounds (b) and the second ethylene/.alpha.-olefin copolymer, which differs from the first in at least one physical property, is prepared in the presence of a polymerization catalyst containing an organoaluminum oxy compound and a metallocene compound (b'). The ethylene/.alpha.-olefin copolymer composition has excellent moldability and heat stability properties and forms films having high transparency and mechanical strength.
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