Patent ID: 8202953

Claim:
A process for polymerization of ethylene and one or more C 3-30 α-olefins or diolefins under continuous, solution polymerization conditions to prepare a polymer, said process comprising conducting the polymerization in the presence of a catalyst composition comprising a zirconium complex of a polyvalent aryloxyether corresponding to the formula: where: R 20 independently each occurrence is a divalent aromatic or inertly substituted aromatic group containing from 5 to 20 atoms not counting hydrogen; T 3 is a divalent hydrocarbon or silane group having from 1 to 20 atoms not counting hydrogen, or an inertly substituted derivative thereof; and R D independently each occurrence is a monovalent ligand group of from 1 to 20 atoms, not counting hydrogen, or two R D groups together are a divalent ligand group of from 1 to 40 atoms, not counting hydrogen; and an alumoxane activating cocatalyst in a molar quantity based on zirconium from 20:1 to 200:1 wherein the process is conducted at a temperature from 150 to 250° C. in the presence of a chain transfer agent to prepare a polymer having a density between 0.885 and 0.950 g/cm 3 , a melt index, I 2 , <5.0, a molecular weight distribution Mw/Mn<3.0, and a catalyst efficiency of greater than 0.5 g polymer /μg metal .