Patent ID: 8101696

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 high molecular weight interpolymer having narrow molecular weight distribution and improved processability, 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 arylene- or inertly substituted arylene-group of from 6 to 20 atoms not counting hydrogen or any atoms of any substituent, said group being substituted at the position adjacent to the oxyl-metal bond with a cyclic ligand, said cyclic ligand containing from 6 to 30 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 20 atoms, not counting hydrogen wherein a chain transfer agent is present in an amount sufficient to decrease the Mw of the resulting interpolymers at least 10 percent compared to the molecular weight of the resulting polymer prepared in the absence of a chain transfer agent, the polymerization is conducted at a temperature from 120° C. to 250° C., the ethylene conversion is at least 85 mol percent and the resultant polymer has a density between 0.855 and 0.950 g/cm 3 , a molecular weight distribution (Mw/Mn)<3.0; a melt index I 2 <5.0 and a melt index ratio I 10 /I 2 ≧10.0.