发明名称 |
CATALYST SYSTEM AND OLEFIN POLYMERISATION PROCESS |
摘要 |
Methods of making supported chromium catalyst system and processes of polymerizing ethylene using the supported chromium catalyst system are disclosed. A method of forming a catalyst system in a polymerization reactor includes contacting a supported chromium catalyst and a metal alkyl cocataly st by cofeeding the catalyst and cocatalyst to the reactor or feeding the catalyst and cocatalyst separately to the reactor, to form a catalyst system . The catalyst and cocatalyst are not pre-contacted prior to the feeding or cofeeding step. The catalyst system can be contacted with ethylene and optional alpha-olefin comonomer to form polyethylene.
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申请公布号 |
CA2487922(A1) |
申请公布日期 |
2003.12.18 |
申请号 |
CA20032487922 |
申请日期 |
2003.06.06 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC. |
发明人 |
KENDRICK, JAMES A.;SPECA, ANTHONY N.;ROGER, SCOTT T.;KATZEN, STANLEY J.;LIN, ZERONG |
分类号 |
C08F2/00;C08F4/69;C08F10/00;C08F210/16;C08F210/18;(IPC1-7):C08F10/00 |
主分类号 |
C08F2/00 |
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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