发明名称 |
Preparation of propylene-ethylene copolymers |
摘要 |
Propylene-ethylene copolymers are obtained by two-stage polymerization from the gaseous phase in an agitated fixed bed by means of a Ziegler-Natta catalyst system that contains in addition to a titanium-containing solid component also an aluminum compound as co-catalyst, wherein as Ziegler-Natta catalyst system a system is used which, following the reaction of the titanium-containing solid component with the co-catalyst, is deactivated by reaction with carbon dioxide. The copolymers are used for producing fibers, films and moldings.
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申请公布号 |
US5344885(A) |
申请公布日期 |
1994.09.06 |
申请号 |
US19930022086 |
申请日期 |
1993.02.25 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
KERSTING, MEINOLF;KERTH, JUERGEN;HUNGENBERG, KLAUS-DIETER;MUELLER, PATRIK;KOELLE, PETER |
分类号 |
C08F4/658;C08F2/34;C08F4/60;C08F4/642;C08F210/16;C08F297/08;D01F6/30;(IPC1-7):C08F4/76;C08F210/02;C08F210/06 |
主分类号 |
C08F4/658 |
代理机构 |
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代理人 |
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地址 |
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