Patent ID: 6828398
Filing Date: 2004-12-07
Classification: C07F,C08F

Abstract:
A polymerization catalyst comprising:(1) a complex having the Formula (I): wherein M is a transition metal; X represents an atom or group covalently or ionically bonded to M; T is the oxidation state of M; b is the valency of the atom or group X; A1 to A3 are each independently N or P or CR, with the proviso that at least one but no more than two of A1 to A3 are independently CR; Y1 and Y2 are each independently CRâ€² or PRâ€²Râ€³ Z is oxygen or NR5; R5 and R7 and each R, each Râ€² and each Râ€³ are independently selected from the group consisting of hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl, substituted heterohydrocarbyl and SiR33, where each R30 is independently selected from the group consisting of hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl; but excluding those complexes having the formulae: where in both complexes excluded R4 and R6 are Me, R5 and R7 are 2,4,6-trimethylphenyl, M is Fe, T is II, X is Cl and b is 1; and (2) an activating quantity of at least one activator compound.