发明授权
- 专利标题: Olefin polymerization catalyst system
- 专利标题(中): 烯烃聚合催化剂体系
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申请号: US11221287申请日: 2005-09-07
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公开(公告)号: US07122497B1公开(公告)日: 2006-10-17
- 发明人: Sandor Nagy , Barbara M. Tsuie
- 申请人: Sandor Nagy , Barbara M. Tsuie
- 申请人地址: US 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: US TX Houston
- 代理商 John Tyrell; Jonathan L. Schuchardt
- 主分类号: B01J31/00
- IPC分类号: B01J31/00 ; B01J37/00
摘要:
A catalyst system useful for polymerizing olefins is disclosed. The catalyst system comprises a cocatalyst and a supported transition metal prepared from a halogen-containing Group 4–6 transition metal compound and an organoaluminum-siloxane containing mixture. The latter mixture, which is prepared from an organoaluminum compound and an organomagnesium-siloxane reaction product, incorporates a chelating ligand. The invention includes a method for making the catalyst system and a process for polymerizing olefins using the catalyst system. The process is convenient and avoids expensive catalyst components used in known olefin polymerization processes.