Patent ID: 7671130

Claim:
An adhesive composition comprising (a) from 75 to 97 weight percent of the total composition of a thermoplastic vulcanizate comprising i) from 50 to 86.6 weight percent, based upon the weight of i) plus ii), of a thermoplastic polyurethane having a glass transition point less than 60° C.; and ii) from 13.4 to 50 weight percent, based upon the weight of i) plus ii), of an at least partially cross-linked rubber selected from butyl rubber, nonpolar rubber and rubber terpolymers of ethylene, propylene and a non-conjugated diene; and, (b) from 3 to 25 weight percent of the total composition of block copolymer comprising rigid blocks of styrene monomers and non-rigid blocks of 1,3-butadiene and styrene monomers containing at least the block structure S—B/S—S, wherein the adhesive composition is free of crystalline thermoplastic polyolefins.