Patent ID: 7666961

Claim:
A slurry process which comprises polymerizing ethylene at a temperature within the range of about 40° C. to about 90° C. in the presence of a catalyst comprising an activator and a supported complex to produce polyethylene with high long-chain branching as indicated by a viscosity enhancement factor of greater than 7, wherein the catalyst has an activity ratio as defined herein greater than 4, and wherein the complex has the structure: wherein each R 1 is independently selected from the group consisting of C 1 -C 6 n-alkyl; each R 2 is independently selected from the group consisting of H, F, and C 1 -C 10 hydrocarbyl; Q is selected from the group consisting of methylene and dimethylsilyl; and each L is independently selected from the group consisting of halide, alkoxy, aryloxy, siloxy, alkylamino, and C 1 -C 30 hydrocarbyl.