发明名称 |
Cycloolefin (co)polymers with a narrow molecular weight distribution and a process for the preparation thereof |
摘要 |
Polymers of polycyclic olefins such as, for example, norbornene or tetracyclododecene, or copolymers of polycyclic olefins with cycloolefins and/or 1-olefins with a very narrow molecular weight distribution are obtained without ring opening by a polymerization in which a catalyst which is composed of an aluminoxane and of a stereorigid, chiral metallocene compound of an element of groups IVb to VIb is used, and in which the reaction is stopped at a time when the molecular weight distribution Mw/Mn of the polymer formed is <2.
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申请公布号 |
US5422409(A) |
申请公布日期 |
1995.06.06 |
申请号 |
US19930156929 |
申请日期 |
1993.11.22 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
BREKNER, MICHAEL-JOACHIM;OSAN, FRANK |
分类号 |
C08F10/02;C08F8/00;C08F32/00;C08F32/02;C08F32/08;(IPC1-7):C08F32/08;C08F32/04;C08L45/00 |
主分类号 |
C08F10/02 |
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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