Patent ID: 7166553

Claim:
A solid, hydrocarbon insoluble catalyst composition comprising: A) a solid, particulated complex comprising moieties of at least magnesium, a Group 4 transition metal, and a halide; B) one or more α-amino-substituted- or α-imino- substituted-2-alkylpyridine compounds corresponding to the formula: wherein: R a is aryl, or an aryl group substituted with one or more alkyl, halo, haloalkyl, or dihydrocarbylamine groups, said R a group having from 6 to 30 carbons; R b and R d , independently each occurrence, are selected from the group consisting of hydrogen, R a , C 1-10 alkyl, C 1-10 haloalkyl, and C 7-20 aralkyl with the proviso that at least one of R d is a bulky, polycyclic aromatic group; and R c is hydride, an alkali metal cation, an alkaline earth metal halide cation, or a cationic organometal ligand comprising a metal of Groups 2–13 of the Periodic Table of the Elements; C) one or more organoaluminum cocatalyst compounds; D) optionally one or more internal electron donors; and E) optionally one or more selectivity control agents.