| 发明名称 |
Sulfiding and reoxidation of chromium catalyst |
| 摘要 |
High melt flow olefin polymers suitable for such applications as injection molding, and the like requiring a narrow molecular weight distribution are produced using a catalyst made by treating a chromium catalyst on a silica-containing base with a sulfur-containing material, and thereafter reoxidizing.
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| 申请公布号 |
US4177162(A) |
申请公布日期 |
1979.12.04 |
| 申请号 |
US19770857556 |
申请日期 |
1977.12.05 |
| 申请人 |
PHILLIPS PETROLEUM |
发明人 |
MCDANIEL, MAX P;WELCH, MELVIN B |
| 分类号 |
C08F4/00;B01J23/26;B01J37/20;C08F4/06;C08F4/24;C08F4/28;C08F10/00;(IPC1-7):B01J27/02;B01J31/02;B01J31/12 |
主分类号 |
C08F4/00 |
| 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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