Patent ID: 6878662

Claim:
A polymerization catalyst comprising a combination of at least one activator and a reaction product eta transition metal compound with a tridentate ligand generating composition represented by a formula of; wherein: R 2 and R 3 are hydrocarbyl radicals or substituted hydrocarbyl radicals, R 5 -R 8 are each, independently, hydrogen, a hydrocarbyl radical or a substituted hydrocarbyl radical; one of R 1 , R 2 , R 3 , R 4 , or R 9 is a radical that contains a Group 16 atom and R* is a hydrocarbyl radical or substituted hydrocarbyl radical when R 1 is a radical that contains a Group 16 atom, otherwise R 1 , R 2 , R 3 , R 4 , R 9 and R* are each, independently, hydrogen, a hydrocarbyl radical or a substituted hydrocarbyl radical; and for formula (I) m and n are values of 0 or 1, and when m is 0 and n is 0 R 2 and R 3 may be joined together to form an aromatic ring structure, and when n is 0 and m is 1 R 2 and R 3 may be joined together to form ring structures; any two adjacent groups of R 5 to R 9 may be joined together to form ring structures; for formula (II) R 1 through R 9 and R* are as explained above and R 10 is hydrogen, a hydrocarbyl radical or a substituted hydrocarbyl radical; and p, q and r are values of 0 or 1 wherein p is 0 only when q is 1 and r is 0; wherein the radical that contains a Group 16 atom is a ketone.