Patent ID: 6503984
Filing Date: 2003-01-07
Classification: C08L,Y10T

Abstract:
A thermoplastic elastomer having adhesion to metal, molded polar polymers and textile fibers, said thermoplastic elastomer comprising:a) a dynamically crosslinked rubber, b) from about 20 to about 400 parts of a first polyolefin having from about 10 to about 26.5 weight percent crystallinity and a flexural modulus (tangent) from about 5,000 psi (34.5 Mpa) to about 20,000 psi (138 Mpa), and c) from about 10 to about 200 parts by weight of a functionalized polyolefin having pendant polar functional groups, wherein said polar functional groups are present at a level of about 0.5 to about 3.5 mole percent of the total repeating units of said functionalized polyolefin and said functionalized polyolefin is derived from polymerizlng at least one monoolefin to form a semicrystalline polymer or is derived from hydrogenating the polydiene blocks of a block copolymer, and wherein said parts by weight are based on 100 parts by weight of crosslinked rubber.