Patent ID: 6635715
Filing Date: 2003-10-21
Classification: C08F,C08L

Abstract:
A composition formed by blending at least a first polymer component and a second polymer component, said blend comprising:from about 2% to about 95% by weight of said first polymer component said first polymer component, comprising isotactic polypropylene and having a melting point greater than about 110 Â° C., and copolymerizing propylene and ethylene using a chiral metallocene catalyst system, said copolymer having crystallinity from about 2% to about 65% from isotactic polypropylene sequences, a propylene content of from about 75% to about 90% by weight, a melting point of from 250 to 105Â° C., and wherein a glass transition temperature of said second polymer component is retained in the polymer blend.