Patent ID: 7294679

Claim:
A method of supporting one or more catalyst compounds comprising contacting at least one catalyst compound and at least one supported activator; wherein the catalyst compound has been combined with a pretreatment agent selected from the group consisting of an aluminum alkyl and an alumoxane prior to contacting with the at least one supported activator; wherein the catalyst compound is represented by the formula: wherein M is a Group 3 to 14 metal, each X is independently a leaving group y is 0 or 1, n is the oxidation state of M, m is the formal charge of the YZL or the YZL′ ligand, L is a Group 15 or 16 element, L′ is a Group 15 or 16 element or Group 14 containing group, Y is a Group 15 element, Z is a Group 15 element, R 1 and R 2 are independently a C 1 to C 20 hydrocarbon group, a heteroatom containing group having up to twenty carbon atoms, silicon, germanium, tin, lead, or phosphorus, R 3 is absent or a hydrocarbon group, hydrogen, a halogen, a heteroatom containing group, R 4 and R 5 are independently an alkyl group, an aryl group, substituted aryl group, a cyclic alkyl group, a substituted cyclic alkyl group, a cyclic arylailcyl group, a substituted cyclic arylalkyl group or multiple ring system, R 10 and R 2 may be interconnected to each other, and/or R 4 and R 5 may be interconnected to each other, R 6 and R 7 are independently absent or hydrogen, an alkyl group, halogen, heteroatom or a hydrocarbyl group, R is absent, or is hydrogen, a Group 14 atom containing group, a halogen, a heteroatom containing group wherein the supported activator comprises an alumoxane and a support selected from the group consisting of silica, fumed silica, alumina, silica-alumina, magnesia, titania, zirconia, magnesium chloride, and wherein said supported activator is present at a ratio of 10.000:1 to 10:1 of the metal of the supported activator to the metal of the catalyst compound.