发明授权
- 专利标题: Production of olefin polymers
- 专利标题(中): 生产烯烃聚合物
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申请号: US136732申请日: 1993-10-14
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公开(公告)号: US5385993A公开(公告)日: 1995-01-31
- 发明人: Takashi Fujita
- 申请人: Takashi Fujita
- 申请人地址: JPX Tokyo
- 专利权人: Mitsubishi Petrochemical Company Limited
- 当前专利权人: Mitsubishi Petrochemical Company Limited
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX3-033107 19910227
- 主分类号: C08F4/658
- IPC分类号: C08F4/658 ; C08F4/60 ; C08F10/00 ; C08F4/654 ; C08F10/06
摘要:
Ziegler polymerization of C.sub.3 or higher .alpha.-olefins is disclosed which is characterized by a solid catalyst component and an organoaluminum component used in the Ziegler catalyst, and also by the temperature used which is 150.degree. to 300.degree. C. The solid catalyst component, Component (A), comprises Sub-component (i) which is a solid catalyst component for Ziegler catalysts comprising Ti, Mg and a halogen; Sub-component (ii) which is a silicon compound represented by a formula: R.sup.1.sub.m X.sub.n Si(OR.sup.2).sub.4-n-m wherein R.sup.1 indicates a hydrocarbyl group, R.sup.2 which may be the same as or different from R.sup.1 indicates a hydrocarbyl group, X is a halogen atom, and m and n are each a number satisfying equations 0.ltoreq.m.ltoreq.3, 0.ltoreq.n.ltoreq.3 and 0.ltoreq.m+n.ltoreq.3; and Sub-component (iii) which is an organometal compound of a metal of Groups I to IV of the Periodic Table. The organoaluminum component (B) is an organoaluminum compound represented by a formulaR.sup.3.sub.3-p H.sub.p Alwherein R.sup.3 indicates a hydrocarbyl group of up to 5 carbon atoms and p is a number satisfying an equation 0.ltoreq.p.ltoreq.1;the mole ratio in Al/Ti of Component (B) to Component (A) being no higher than 1. The poly .alpha.-olefins produced have a broader molecular weight distribution than those produced at a lower polymerization temperature.
公开/授权文献
- US5947297A Packaging case 公开/授权日:1999-09-07