Patent ID: 9422385
Filing Date: 2016-08-23
CPC Classification: C08F

Claim Text:
1. A process for preparing an ethylene/macromonomer copolymer wherein the process comprises contacting ethylene and a propylene vinyl terminated macromonomer (VTM) in the presence of at least one catalyst capable of incorporating the VTM into a polyethylene backbone, wherein the catalyst is [di(p-triethylsilylphenyl) methylene] (cyclopentadienyl) (3,8-di-t-butylfluorenyl)hafnium dimethyl preactivated with N,N-dimethylanilinium tetrakis(pentafluorophenyl) borate, wherein the ethylene/macromonomer copolymer comprising at least 70 wt % of ethylene and at least one propylene vinyl terminated macromonomers (VTM) wherein the ethylene copolymer has: 1) a Mw of 100,000 g/mol or more; 2) a density of 0.94 g/cm 3 or less; and 3) a ratio of the complex viscosity at a frequency of 0.1 rad/s to the complex viscosity at a frequency of 100 rad/s of 15 or more; and wherein the propylene-VTM is amorphous and has no detectable melting temperature from DSC, and has an Mn (measured by 1 H NMR) of from 200 g/mol to 5000 g/mol.