发明名称 |
Catalyst for the manufacture of polythylene with a narrow molecular weight distribution |
摘要 |
An ethylene-alpha-olefin copolymerization catalyst is prepared by impregnating a porous support, such as silica, with a contact mixture of an organomagnesium compound such as dialkyl magnesium and a silane compound which is free of hydroxyl groups, such as tetraethyl orthosilicate. A transition metal component such as titanium tetrachloride is then incorporated into the support in a specific ratio to the magnesium and silane components. Activation of this catalyst precursor with a trialkylaluminum compound results in a catalyst system which is effective for the production of ethylene copolymers.
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申请公布号 |
US5939348(A) |
申请公布日期 |
1999.08.17 |
申请号 |
US19960779260 |
申请日期 |
1996.12.12 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
MINK, ROBERT I.;NOWLIN, THOMAS E. |
分类号 |
B01J31/12;B01J31/14;C08F4/44;C08F4/654;C08F10/00;(IPC1-7):C08F4/654;C08F4/656;C08F10/02 |
主分类号 |
B01J31/12 |
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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