B-n heterocyclic ligands

Details B-n heterocyclic ligands B-n heterocyclic ligands

C - Chemistry, Metallurgy

07

F

C07F 17/00 (2006.01) C07F 5/02 (2006.01) C08F 4/64 (2006.01) C08F 10/02 (2006.01) C08F 4/659 (2006.01) C08F 4/6592 (2006.01) C08F 110/02 (2006.01) C08F 210/16 (2006.01)

Patent

CA 2225014

A catalyst component comprising a group 4 metal having a heterocyclic ligand which is pi-bonded to the metal, characterized in that this ligand contains a boron-nitrogen ("B-N") fragment contained in the ring and further characterized in that a dialkyl amido substituent is bonded to the boron atom. Catalyst systems which contained this catalyst component are useful olefin polymerization catalysts, particularly for the preparation of polyethylene. The resulting polyethylenes are characterized by having an extremely broad molecular weight distribution (MWD).

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