发明名称 |
OLEFIN POLYMERIZATION PROCESS |
摘要 |
The present invention relates to a process for olefin polymerization, in particular for the preparation of ethylene or propylene homo or copolymers, which process comprises at least two polymerization stages, a relatively earlier of said stages comprising polymerizing an alpha -olefin in the presence of hydrogen and an eta -liganded olefin polymerization catalyst whereby to produce a first polymerization product, and a relatively later of said stages comprising polymerizing said alpha -olefin in the presence of an olefin polymerization catalyst whereby to yield a polymerization product having a lower MFR2 than said first polymerization product. The present invention further relates to the olefin polymer products of such a process.
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申请公布号 |
WO9858001(A1) |
申请公布日期 |
1998.12.23 |
申请号 |
WO1998GB01747 |
申请日期 |
1998.06.16 |
申请人 |
COCKBAIN, JULIAN;BOREALIS A/S;FOLLESTAD, ARILD;SALMINEN, HANNU |
发明人 |
FOLLESTAD, ARILD;SALMINEN, HANNU |
分类号 |
C08F4/60;C08F4/646;C08F4/659;C08F4/6592;C08F10/00;C08F10/02;C08F110/02;C08F110/06;C08F210/00;C08F210/16;(IPC1-7):C08F297/08;C08F2/00 |
主分类号 |
C08F4/60 |
代理机构 |
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代理人 |
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地址 |
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