发明名称 |
Preparation of modified methylaluminoxane olefin polymerisation catalyst component |
摘要 |
An olefin polymerization catalyst is provided which makes use of a modified methylaluminoxane and thus stably exhibits an activity equivalent to, or higher than, the activity achieved by polymethylaluminoxane. Specifically, the olefin polymerization catalyst is in the form of a modified methylaluminoxane preparation prepared from: an organoaluminum compound represented by the following general formula (I): R<1> mAlX3-m wherein R<1> represents a straight-chained or branched hydrocarbon group selected from the group consisting of alkyl, alkenyl, and aryl groups having 2 to 20 carbon atoms; X represents a hydrogen atom, halogen atom, alkoxy group, or allyloxy group; and 0 < m ≤ 3; and trimethyl aluminum, wherein the mole fraction of methyl group of the aluminoxane unit with respect to the total number of moles of the hydrocarbon group having 2 to 20 carbon atoms and methyl group present in the modified methylaluminoxane preparation is 65mol% or greater. <IMAGE> |
申请公布号 |
EP1352913(A1) |
申请公布日期 |
2003.10.15 |
申请号 |
EP20030007377 |
申请日期 |
2003.04.02 |
申请人 |
TOSOH FINECHEM CORPORATION |
发明人 |
KAJI, EIICHI;TOYOTA, KOUJI;TAKASUGI, TOSHIHIRO;KANAZAWA, HIDEKI |
分类号 |
C07F5/06;C08F4/02;C08F4/642;C08F4/659;C08F4/6592;C08F110/02 |
主分类号 |
C07F5/06 |
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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