Patent ID: 7078469

Claim:
A catalyst system comprising a polymeric support having a particle size 1 to 300 microns, a surface area from 100 to 1,500 m 2 /g and a pore volume of at least 0.1 cm 3 /g, a co-catalyst in an amount from 0.01 to 0.8 g per g of support, said co-catalyst having the formula R 1 2 AlO(R 1 AlO) m AlR 1 2 wherein each R 1 is indenendently selected from C 1-20 hydrocarbyl radicals and m is from 3 to 50, said support comprising the suspension or emulsion polymerization product of a feedstock comprising: (i) from 60 to 99 weight % of one or more C 4-12 vinyl monomers selected from the group consisting of styrene, alpha-methyl styrene, para-methyl styrene and C 1-4 alkyl esters of C 3-6 unsaturated carboxylic acids; and (ii) from 40 to 1 weight % of a crosslinking agent selected from the group consisting of divinyl benzene, divinyl toluene, pentaerythritol di- and tri-acrylates and pentaerythritol di- and tri-methacrylates; and said support being treated with, (iii) from 0.01 to 5 mmol per gram of support of a halosulfonic acid; (iv) from 0 to 10 mmol per gram of support of a compound of the formula M (R 2 ) a (OR 2 ) b (X) c wherein M is a metal atom selected from the group consisting of Mg, Al and Zn, R 2 is a C 1-10 alkyl radical and a, b, and c are integers from 0 to 3 provided the sum of a+b+c=the valence of M; and (v) from 0 to 5 mmol per gram of support of a bulky amine; and a catalyst of the formula: (L) n -M-(X) p wherein M is a transition metal; L is a monoanionic ligand independently selected from the group consisting of a cyclopentadienyl-type ligand, a bulky heteroatom ligand and a phosphinimine ligand; X is an activatable ligand; n is from 1 to 3; and p is from 1 to 3, provided that the sum of n+p equals the valence state of M, and further provided that two L ligands may be bridged by a silyl radical or a C 1-4 alkyl radical, wherein a molar ratio of aluminum from the co-catalyst to transition metal is from 20:1 to 300:1.