发明名称 |
Polymerization catalyst systems, their preparation, and use |
摘要 |
A prepolymerized solid catalyst is prepared by reacting a suitable support base with an organoaluminum compound and then reacting that product with an activity promoting amount of water and then reacting the resulting solid cocatalyst with a metallocene and then subjecting that product to prepolymerization in the presence of hydrogen. The prepolymerized solid catalyst is useful in the polymerization of olefins.
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申请公布号 |
US6159888(A) |
申请公布日期 |
2000.12.12 |
申请号 |
US19980150462 |
申请日期 |
1998.09.09 |
申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
WELCH, M. BRUCE;KOEPPL, ALEXANDER;ALT, HELMUT G. |
分类号 |
B01J31/14;B01J31/22;C08F4/649;C08F4/659;C08F10/00;C08F110/02;(IPC1-7):B01J21/00;B01J21/02;B01J21/04;B01J21/06;B01J21/08 |
主分类号 |
B01J31/14 |
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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