发明授权
- 专利标题： Supported polymerization catalyst component and system, Polymerization process using same for the production of ultra-fine particle size resins with improved crystallization rates
- 专利标题（中）： 支持的聚合催化剂组分和体系，聚合方法用于生产具有改善的结晶速率的超细粒度树脂
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申请号： US967578申请日： 1997-11-10
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公开(公告)号： US5925587A公开(公告)日： 1999-07-20
- 发明人: Chun D. Lee , Richard W. Fries
- 申请人： Chun D. Lee , Richard W. Fries
- 申请人地址： TX Houston
- 专利权人： Equistar Chemicals, LP
- 当前专利权人： Equistar Chemicals, LP
- 当前专利权人地址： TX Houston
- 主分类号： B01J31/02
- IPC分类号： B01J31/02 ; B01J31/12 ; B01J31/14 ; B01J31/22 ; C08F4/02 ; C08F4/44 ; C08F4/642 ; C08F4/659 ; C08F10/00 ; C08F110/02 ; C08F210/06 ; C08F210/16
摘要：
A supported polymerization catalyst component and a catalyst system useful in the production of polyolefin resins that have a narrow particle size distribution and enhanced crystallization rates is provided. The supported polymerization component comprises talc, an organomagnesium compound or complex, wherein the weight ratio of talc to magnesium in the organomagnesium compound or complex is from about 1000:1 to about 5:1, at least one transition metal containing compound and/or a metallocene effective in alpha-olefin polymerization reactions, and, optionally, an alcohol or a silane. The catalyst system of the instant invention includes the aforementioned alpha-olefin polymerization catalyst component and at least one aluminum-containing cocatalyst compound. A process for polymerizing or copolymerizing alpha-olefins, conducted under olefin polymerization conditions utilizing the inventive catalyst system of this invention is also described.