发明名称 |
Catalyst yield from supported metallocene catalysts |
摘要 |
The present invention provides a catalyst and a process for increased catalyst activity and polymer yield. The catalyst system used in the process includes at least two supported metallocene catalyst precursor in combination with an oxyorganoaluminum. The process can be applied to the polymerization of olefins, preferably olefin of three carbon atoms and higher, particularly propylene. The catalyst activity and polymer yield for a dual supported metallocene catalyst are increased over that for a single supported metallocene catalyst. The polymer produced by this dual supported metallocene system has a relatively broad molecular weight distribution.
|
申请公布号 |
US5847059(A) |
申请公布日期 |
1998.12.08 |
申请号 |
US19960770886 |
申请日期 |
1996.12.20 |
申请人 |
FINA TECHNOLOGY, INC. |
发明人 |
SHAMSHOUM, EDWAR SHOUKRI;BAUCH, CHRISTOPHER GARLAND |
分类号 |
C08F4/02;C08F4/619;C08F4/6192;C08F4/64;C08F4/642;C08F4/659;C08F4/6592;C08F10/00;C08F10/06;C08F110/06;(IPC1-7):C08F4/64 |
主分类号 |
C08F4/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|