| 发明名称 |
A process for producing an olefin polymerization catalyst, supported polymerization catalyst and polymerization process. |
| 摘要 |
<p>Large pore volume (≥1.4 cc/g) silica is obtained by slowly dring an acidic (pH ≤3.5) silica hydrogel. The gel is useful in connection with chromium as an ethylene polymerization catalyst.</p> |
| 申请公布号 |
EP0034303(A2) |
申请公布日期 |
1981.08.26 |
| 申请号 |
EP19810100787 |
申请日期 |
1981.02.04 |
| 申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
MCDANIEL, MAX PAUL;MEISTER, JOHN J. DR. |
| 分类号 |
C08F4/02;C08F4/22;C08F10/00;(IPC1-7):08F10/00;08F4/78;08F4/02;08F4/22 |
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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