Catalyst Composition Comprising Shuttling Agent for Ethylene Multi-Block Copolymer Formation
申请人:Arriola Daniel J.
公开号:US20110124818A1
公开(公告)日:2011-05-26
A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises 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.