Patent ID: 7297747
Filing Date: 2007-11-20
Classification: C07F,C08F,Y10S

Abstract:
1. A polymer composition consisting essentially of: (a) propylene polymer comprising at least 99% by weight of units derived from propylene and having a melting point of at least 157° C.; and (b) olefin copolymer comprising from 40% to 70% by weight of units derived from propylene and having an intrinsic viscosity of at least 1.8 dl/g; the composition made with a single catalyst composition, wherein components (a) and (b) together contain a total of at least 5.476% by weight to 20% by weight of units derived from ethylene and the propylene polymer has a triad tacticity of greater than 98% and no measurable proportion of 2,1-inserted propene units.