Patent ID: 6031009
Filing Date: 2000-02-29
Classification: C08J,C08L,Y02W

Abstract:
Improved thermoplastic compositions comprising a blend of about 10-90 parts by weight of ground vulcanized rubber in the form of small dispersed particles essentially of 1.5 mm number average or below, wherein said rubber is selected from the group consisting of natural rubber, synthetic polymer and copolymer rubber derived from alkadienes, and mixtures thereof, and correspondingly, about 90-10 parts by weight of one or more conventional olefin polymers and at least 0.5 parts by weight of one or more metallocene single site catalyzed alpha olefin copolymer per 100 parts by weight said conventional of olefin polymer wherein said alpha olefin copolymer is present in an amount effective to increase the elongation at break of the composition by 25% measured according to ASTM D-412, and is a copolymer of at least one olefin and at least one alpha olefin.