发明名称 |
Temperature control of MW in olefin polymerization using supported metallocene catalyst |
摘要 |
In gas phase polymerizations and copolymerizations of ethylene, temperature controls the molecular weight, expressed as MI (wherein MI is measured according to ASTM D-1238 Condition E), of the resin product. Increase in polymerization temperature produces decrease in MI; whereas, decrease in polymerization temperature produces increase in MI.
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申请公布号 |
US5608019(A) |
申请公布日期 |
1997.03.04 |
申请号 |
US19930148309 |
申请日期 |
1993.11.08 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
CHERUVU, SUBRAHMANYAM;LO, FREDERICK Y. |
分类号 |
C08F4/642;C08F2/34;C08F4/619;C08F4/6192;C08F4/628;C08F4/648;C08F4/658;C08F4/659;C08F4/6592;C08F10/00;C08F10/02;C08F210/02;C08F210/16;C08J5/18;C08L23/00;C08L23/08;C08L23/16;(IPC1-7):C08F4/642 |
主分类号 |
C08F4/642 |
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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