发明名称 |
Polyolefin catalysts, production thereof and method of use |
摘要 |
A method of modifying a Ziegler-Natta type polyolefin catalyst comprises contacting the Ziegler-Natta catalyst with olefin monomer to form a prepolymerized catalyst. The prepolymerized catalyst can comprise a reduced number of catalyst particles having a size of 40 microns or less. The prepolymerized catalyst can be used in a polymerization process to produce polymer fluff particles with a reduced number of polymer fluff fines than the Ziegler-Natta type catalyst.
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申请公布号 |
US2004162401(A1) |
申请公布日期 |
2004.08.19 |
申请号 |
US20030370365 |
申请日期 |
2003.02.18 |
申请人 |
GRAY STEVEN D.;COFFY TIM J.;SHAMSHOUM EDWAR S.;CHEN HONG |
发明人 |
GRAY STEVEN D.;COFFY TIM J.;SHAMSHOUM EDWAR S.;CHEN HONG |
分类号 |
C08F10/00;C08F110/02;(IPC1-7):C08F4/44;B01J31/00 |
主分类号 |
C08F10/00 |
代理机构 |
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