Patent ID: 7030200

Claim:
A process for the polymerization of olefins, comprising, using a polymerization catalyst system comprising a Ni, Pd, Fe or Co complex of a ligand of the formula wherein: Ar 1 , Ar 2 , Ar 3 and Ar 4 are each independently aryl or substituted aryl; R 7 is hydrogen, hydrocarbyl or substituted hydrocarbyl; Q is sulfur, oxygen, nitrogen or phosphorous; n is 0 or 1; when n is 0 and Q is oxygen or sulfur, R 1 and R 2 are each independently hydrogen, hydrocarbyl, substituted hydrocarbyl or R 1 and R 2 taken together form a ring, R 6 is not present and R 5 is hydrocarbyl or substituted hydrocarbyl; when n is 1 and Q is oxygen or sulfur, R 1 , R 2 , R 3 and R 4 taken together form an aromatic ring which may be substituted, R 6 is not present and R 5 is hydrocarbyl or substituted hydrocarbyl; when n is 0 and Q is nitrogen, R 1 , R 2 , R 5 , R 6 and said nitrogen together form an aromatic ring, or R 1 is hydrogen, hydrocarbyl or substituted hydrocarbyl, R 2 and R 5 taken together are part of a double bond, and R 6 is aryl or substituted aryl; when n is 1 and Q is nitrogen, R 1 is hydrogen, hydrocarbyl or substituted hydrocarbyl, R 1 , R 2 and R 3 are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl provided that any two of R 1 , R 2 and R 3 geminal or vicinal to each other together may form a ring, R 4 and R 5 taken together are part of a double bond, and R 6 is aryl or substituted aryl; when n is 0 and Q is phosphorous R 1 and R 2 are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl, provided that R 1 and R 2 taken together may form a ring, and R 5 and R 6 are each independently hydrocarbyl or substituted hydrocarbyl; when n is 1 and Q is phosphorous, R 1 , R 2 , R 3 and R 4 taken together form an aromatic ring which may be substituted, and R 5 and R 6 are each independently hydrocarbyl or substituted hydrocarbyl; R 8 is hydrocarbyl or substituted hydrocarbyl; R 10 , R 11 and R 12 are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl; R 13 hydrogen, hydrocarbyl or substituted hydrocarbyl; and R 14 is hydrocarbyl or substituted hydrocarbyl.