| 发明名称 |
Polymerization catalyst systems, methods of making and uses therefor |
| 摘要 |
A novel magnesium treated silica-containing compound that is useful as a support for chromium based olefin polymerization catalyst systems is provided which produces ethylene polymers having with MWD's that promote good properties particularly in HMW film applications.
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| 申请公布号 |
US6716938(B2) |
申请公布日期 |
2004.04.06 |
| 申请号 |
US20020322932 |
申请日期 |
2002.12.18 |
| 申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
SHVEIMA JOSEPH S.;MCDANIEL MAX P.;MARTIN SHIRLEY J.;COLLINS KATHY S.;BENHAM ELIZABETH A.;EATON ANTHONY P.;SUKHADIA ASHISH M. |
| 分类号 |
C08F4/22;B01J21/08;B01J21/10;C08F4/02;C08F4/50;C08F4/58;C08F4/654;C08F4/658;C08F10/00;C08F110/02;C08F210/16;(IPC1-7):C08F4/24 |
主分类号 |
C08F4/22 |
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