发明申请
US20080311812A1 Catalyst Composition Comprising Shuttling Agent for Higher Olefin Multi-Block Copolymer Formation
有权
催化剂组合物包含用于较高烯烃多嵌段共聚物形成的穿梭剂
- 专利标题: Catalyst Composition Comprising Shuttling Agent for Higher Olefin Multi-Block Copolymer Formation
- 专利标题(中): 催化剂组合物包含用于较高烯烃多嵌段共聚物形成的穿梭剂
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申请号: US10589379申请日: 2005-03-17
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公开(公告)号: US20080311812A1公开(公告)日: 2008-12-18
- 发明人: Daniel J. Arriola , Edmund M. Carnahan , David D. Devore , Phillip D. Hustad , Roger L. Kuhlman , Timothy T. Wenzel
- 申请人: Daniel J. Arriola , Edmund M. Carnahan , David D. Devore , Phillip D. Hustad , Roger L. Kuhlman , Timothy T. Wenzel
- 国际申请: PCT/US2005/008915 WO 20050317
- 主分类号: D04H13/00
- IPC分类号: D04H13/00 ; C08F112/08 ; C08F10/06 ; C08L53/00 ; C08F4/52 ; C08F4/44 ; C08F4/06 ; C08F4/16
摘要:
Copolymers, especially multi-block copolymer containing therein two or more segments or blocks differing in chemical or physical properties, are prepared by polymerizing propylene, 4-methyl-1-pentene, or other C4-8α-olefin and one or more copolymerizable comonomers, especially ethylene in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.