发明名称 |
Cyclobutyl silanes for catalysts useful for making highly isotactic olefin polymers |
摘要 |
One aspect of the present invention relates to a catalyst system for use in olefinic polymerization, containing a solid titanium catalyst component prepared by contacting a titanium compound and a magnesium compound; an organoaluminum compound having at least one aluminum-carbon bond; and an organosilicon compound comprising at least one of cyclobutyl group. Another aspect of the present invention relates to a method of making a catalyst for use in olefinic polymerization, involving the steps of reacting a Grignard reagent having a cyclobutyl group with an orthosilicate to provide an organosilicon compound having a cyclobutyl moiety; and combining the organosilicon compound with an organoaluminum compound having at least one aluminum-carbon bond and a solid titanium catalyst component prepared by contacting a titanium compound and a magnesium compound.
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申请公布号 |
USH2060(H1) |
申请公布日期 |
2003.03.04 |
申请号 |
US20010915023 |
申请日期 |
2001.07.25 |
申请人 |
ENGELHARD CORPORATION |
发明人 |
SPENCER MICHAEL D.;CHENG CHUNG-PING |
分类号 |
B01J31/02;B01J31/12;B01J31/14;B01J31/16;C08F10/00;C08F110/06;(IPC1-7):C08F4/60;C08F4/44;B01J31/00 |
主分类号 |
B01J31/02 |
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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