Patent ID: 7214638

Claim:
A catalyst composition for polymerization of addition polymerizable monomers comprising: a) a transition metal complex corresponding to the formula: L 1 MX p X′ q , wherein: M is a metal of Group 4 of the Periodic Table of the Elements havin an oxidation state of +2, +3 or +4, bound in an η 5 bonding mode to one or more L groups; L independently each occurrence is a cyclopentadienyl-, indenyl-, tetrahydroindenyl-, fluorenyl-, tetrahydrofluorenyl-, or octahydrofluorenyl- group optionally substituted with from 1 to 8 substituents independently selected from the group consisting of hydrocarbyl, halo, halohydrocarbyl, aminohydrocarbyl, hydrocarbyloxy, dihydrocarbylamino, dihydrocarbylphosphino, silyl, aminosilyl, hydrocarbyloxysilyl, and halosilyl groups containing up to 20 non-hydrogen atoms, or further optionally two such L groups may be joined together by a divalent substituent selected from hydrocarbadiyl, halohydrocarbadiyl, hydrocarbyleneoxy, hydrocarbyleneamino, siladiyl, halosiladiyl, and divalent aminosilane groups containing up to 20 non-hydrogen atoms; X independently each occurrence is a monovalent or polyvalent anionic ligand group having one or more shared or donative bonds to M, and optionally one or more shared or donative bonds to one or more L groups, said X containing up to 60 nonhydrogen atoms; X′ independently each occurrence is a neutral Lewis base ligating compound, having up to 20 atoms; t, p, and q are 0, 1 or 2; b) an activator compound; and c) a Group 13 metal compound corresponding to the formula: wherein, M, independently each occurrence is a group 13 metal; R a is a hydrocarbyl, halocarbyl, halohydrocarbyl, tri(hydrocarbyl)silyl, or tri(hydrocarbyl)silyl- substituted hydrocarbyl radical of from 1 to 20 carbon, silicon or mixtures of carbon and silicon atoms; R b independently each occurrence is a C 1-30 hydrocarbyl group; R c independently each occurrence is selected from the group consisting of hydrogen, R a , —NR b 2 , and halo- or di(C 1-10 hydrocarbyl)amino- substituted hydrocarbyl groups, and optionally one or more R c groups may be shared by both metal centers, M, in the form of a μ-bridged structure; and R d , is a divalent, anionic ligand group of up to 30 atoms, not counting hydrogen.