Catalyst system of enhanced productivity and its use in...

C - Chemistry – Metallurgy – 08 – F

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C08F 4/645 (2006.01) C08F 4/642 (2006.01) C08F 10/00 (2006.01) C08F 4/659 (2006.01) C08F 4/6592 (2006.01)

Patent

CA 2146344

An ionic catalyst system for polymerizing monomers comprising a reaction product of a Group 4 transition metal com- pounds containing a single cyclopentadienyl ligand and a heteroatom contacting group and a non-coordinating anion precursor, and a Group 13 element organo compound additive. The catalyst system described, employing the organoadditive, results in a ca- talyst of enhanced productivity for the polymerization of olefins. Said catalyst system and additive may optionally be placed on an inert support media and prepolymerized if desired. The catalyst system may be used to polymerize monomers under high pres- sure, solution, liquid, bulk, slurry or gas phase polymerization conditions.

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