Patent ID: 7915194

Claim:
A metal complex catalyst, which is a reaction product of: A) at least one metal complex represented by Formula 3, 4 or 5: wherein, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 and X 2 are, independently in each occurrence, hydrogen, a halide atom, or a group having from 1 to 80 atoms, not counting hydrogen, selected from hydrocarbyl, hydrocarbylsilyl, halo-substituted hydrocarbyl, hydrocarbyloxy-substituted hydrocarbyl, hydrocarbylamino-substituted hydrocarbyl, or hydrocarbylsilyl-substituted hydrocarbyl; M I is lanthanum, cerium, praseodymium, neodymium, or promethium; M II is lithium, sodium, potassium or magnesium; N is nitrogen X 1 is fluoride, chloride, bromide or iodide; D is THF, DME or Et 2 O; t is the number 0, 1, 2, 3, 4, 5 or 6; s is the number 0, 1 or 2; o is the number 1 or 2; p is the number 1 or 2; k is the number 0, 1, 2, 3 or 4; i, ii are the numbers 0, 1 or 2; and the sum of i and ii represents one of the numbers 1, 2 or 3; and B) at least one activator selected from: a) C 1-30 organoboron or organoaluminum compounds, b) polymeric or oligomeric alumoxanes, c) non-polymeric compatible, non-coordinating, ion-forming compounds, and d) hydrocarbyl sodium, hydrocarbyl lithium, hydrocarbyl zinc, hydrocarbyl magnesium halide, and dihydrocarbyl magnesium; and wherein A) and B) are brought together in a reaction medium at a temperature from −78° C. to 250° C.