Patent ID: 8609768

Claim:
A hot melt adhesive composition comprising: a thermoplastic polyurethane (A) having a flow initiation temperature of from 80 to 150° C.; and a phenolic hydroxy group-containing compound (B) having phenolic hydroxy groups and having a molecular weight of at least 1,000, wherein the phenolic hydroxy group-containing compound (B) is one of: a phenolic resin which is obtained by a reaction of a phenol with an aldehyde and has a mass average molecular weight of from 3,600 to 15,000; and hydrolysable tannin or condensed tannin, which has a molecular weight of at least 1,000, and the thermoplastic polyurethane (A) has structural units derived from at least one polyol compound selected from the group consisting of a polyester polyol, a polyether polyol and a polyester ether polyol, structural units derived from at least one chain extender selected from the group consisting of 1,4-butanediol, 1,5-pentanediol and 1,6-hexanediol, and structural units derived from at least one polyisocyanate compound, wherein structural units derived from chain extenders in the thermoplastic polyurethane (A) consist of the structural units derived from the at least one chain extender selected from the group consisting of 1,4-butanediol, 1,5-pentanediol and 1,6-hexanediol.