Patent ID: 6797779
Filing Date: 2004-09-28
Classification: C08C,C08F,C08L

Abstract:
A thermoplastic composition which is comprised of a blend of a thermoplastic polyolefin resin and an elastomer, wherein said thermoplastic polyolefin resin selected at least from the group of polyethylene, isotactic polypropylene, syndiotactic polypropylene, polypropylene impact copolymers containing about 1-7% by weight of ethylene, butene, hexene, or octene, polyolefin copolymers, polybutene, reactor grade modified polypropylene, oxypolyolefin, metallocene polypropylene, wherein said elastomer is comprised of a conjugated diene selected from 1,3-butadiene and isoprene, wherein said elastomer is highly branched, wherein said elastomer is characterized by having a Gâ€² and Gâ€³ frequency crossover of no more than 4 radians/s at 100Â° C., wherein the thermoplastic polyolefin is present in an amount which is within the range of about 5 parts by weight to about 95 parts by weight, and wherein the elastomer is present in an amount which is within the range of about 5 parts by weight to about 95 parts by weight, based upon the total weight of the thermoplastic composition.