发明名称 |
Process for preparing a syndiotactic propylene copolymer. |
摘要 |
Copolymerisation of propylene with small amounts of other olefins in the presence of a catalyst comprising a metallocene of the formula I <IMAGE> in which M<1> is titanium, zirconium, hafnium, vanadium, niobium or tantalum, and an aluminoxane gives a syndiotactic propylene copolymer in high yield. This copolymer has a very high molecular weight, a very narrow molecular weight distribution, very high syndiotacticity, a favourably low melting point and a rubber-like behaviour. Mouldings produced from the polymer have high transparency, flexibility and tear strength. Their principal area of application is packaging of all types. |
申请公布号 |
EP0433987(A2) |
申请公布日期 |
1991.06.26 |
申请号 |
EP19900124592 |
申请日期 |
1990.12.18 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
WINTER, ANDREAS, DR.;DOLLE, VOLKER, DR.;ROHRMANN, JUERGEN, DR.;SPALECK, WALTER, DR.;ANTBERG, MARTIN, DR. |
分类号 |
C08F4/42;C08F4/60;C08F4/602;C08F4/639;C08F4/6392;C08F4/64;C08F4/642;C08F4/646;C08F4/659;C08F4/6592;C08F4/68;C08F8/00;C08F210/06;C08J5/00;C08J5/18 |
主分类号 |
C08F4/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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