High temperature olefin polymerization process

Details High temperature olefin polymerization process High temperature olefin polymerization process

C - Chemistry, Metallurgy

08

F

C08F 210/16 (2006.01) C08F 4/642 (2006.01) C08F 10/00 (2006.01) C08F 38/00 (2006.01)

Patent

CA 2344994

A polymerization process for olefinically or acetylenically unsaturated monomers is disclosed. The process comprises contacting the one or more of the monomers with a suitable ionic catalyst composition comprising the reaction product of a catalytically suitable Group 4, 5, 6 or 8 transition metal compound having a univalent hydride, alkyl or silyl ligand and a hydrated salt. The class of preferred anion precursors consists of hydrated salts comprising a Group 1 or 2 canon and a non-coordinating anion. Using the preferred ionic catalysts high temperature processes, e.g., at or above 90°C can be conducted to prepare polyolefins, particularly ethylene copolymers, of both high molecular weight and high comonomer content.

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