发明名称 |
Multistage polymerization process using a catalyst having different catalytically active sites |
摘要 |
The invention relates to a process for the preparation of an olefin polymer wherein olefin polymerization is effected in a plurality of polymerization reaction stages in the presence of an olefin polymerization catalyst material, characterized in that said catalyst material comprises at least two different types of active polymerization sites.
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申请公布号 |
US6545105(B1) |
申请公布日期 |
2003.04.08 |
申请号 |
US19990457575 |
申请日期 |
1999.12.09 |
申请人 |
FOLLESTAD ARILD;JENS KLAUS JOACHIM;SOLLI KJELL-ARNE;NENSETH SVEIN |
发明人 |
FOLLESTAD ARILD;JENS KLAUS JOACHIM;SOLLI KJELL-ARNE;NENSETH SVEIN |
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):C08F4/52;C08F4/64;C08F4/642 |
主分类号 |
C08F4/60 |
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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