Patent ID: 7534847
Filing Date: 2009-05-19
Classification: C07F,C08F,C08L,Y02P,Y10T

Abstract:
1. A copolymer of ethylene with α-olefins which comprises a molar mass distribution M w /M n of from 1 to 8, a density of from 0.85 to 0.94 g/cm 3 , a number average molar mass M n of from 10,000 g/mol to 4,000,000 g/mol, a CDBI of less than 50%, a vinyl group content of from 0.1 to 1 vinyl groups/1000 carbon atoms, a Lcb rate of from 0.001 to 0.09 Lcb/1000 carbon atoms, the copolymer comprising at least a bimodal short chain branching distribution, and wherein a side chain branching of the maxima of the individual peaks of the short chain branching distribution, as determined by crystallization analysis fractionation (CRYSTAF), of the copolymer of ethylene and the α-olefins is greater than 5 CH 3 /1000 carbon atoms.