发明名称 |
Supported polymerisation catalysts |
摘要 |
A supported polymerisation catalyst system comprises a porous support, a polymerisation catalyst and a cocatalyst wherein the support has been treated with an inert material such as polyisobutene. The support is preferably silica and is preferably treated with the inert material prior to contact with the other components. Preferably the polymerisation catalyst is a metallocene and the polymerisation catalyst system reduces the initial peak isotherm allowing for a smoother activity increase in particular for polymerisations carried out in the gas phase.
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申请公布号 |
US7528090(B2) |
申请公布日期 |
2009.05.05 |
申请号 |
US20040568822 |
申请日期 |
2004.08.04 |
申请人 |
INEOS EUROPE LIMITED |
发明人 |
JACOBSEN GRANT BERENT;KIMBERLEY BRIAN STEPHEN;MASTROIANNI SERGIO |
分类号 |
C08F4/02;B01J31/22;C08F4/659;C08F4/6592;C08F210/16 |
主分类号 |
C08F4/02 |
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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