发明名称 |
Olefin polymerization catalysts with specific silica supports |
摘要 |
A catalyst having a high pore volume, high surface area porous silica support and a non-metallocene, Ziegler-Natta catalytic component incorporated on the silica support is provided for the production of polyolefins from alpha -olefins. The porous silica support is made up of silica gel particles having an average surface area of about 600 to about 800 m2/g of silica and an average pore volume of about 2.5 to about 4.0 ml/g of silica. Preferably, the silica particles have an average surface area of about 650 to about 750 m2/g of silica and an average pore volume of about 2.75 to about 3.25 ml/g of silica. Even more preferably, the silica particles have an average surface area of about 700 m2/g of silica and an average pore volume of about 3.0 ml/g of silica. The catalytic component comprises a complex product of a transition metal halide and a metal alkyl which excludes cyclopentadienyl rings.
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申请公布号 |
US6001764(A) |
申请公布日期 |
1999.12.14 |
申请号 |
US19980075279 |
申请日期 |
1998.05.08 |
申请人 |
PQ CORPORATION |
发明人 |
PULLUKAT, THOMAS J.;SHINOMOTO, RONALD S.;WITT, REINHARD H. |
分类号 |
B01J31/00;C08F4/02;C08F10/00;(IPC1-7):B01J31/00 |
主分类号 |
B01J31/00 |
代理机构 |
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代理人 |
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地址 |
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