RESIN COMPOSITION CONTAINING THERMOPLASTIC POLYURETHANE AND HOT-MELT ADHESIVE

摘要

A thermoplastic-polyurethane-containing resin composition which can be melted at a low temperature, is capable of short-time bonding, and has excellent flexibility; and a hot-melt adhesive. The thermoplastic-polyurethane-containing resin composition has structural units derived from: one or more diol compounds (I) comprising a polyester-ether diol (A) obtained from an initiator (a), a dicarboxylic anhydride (b), and an alkylene oxide (c); a diisocyanate compound (II); and a chain extender (III). When the proportions by mass (mass%) of the three kinds of structural units are indicated by [I], [II], and [III], respectively, ([II]+[III])/([I]+[II]+[III]) is from 0.20 to 0.40. The resin composition has an NCO index of 0.9-1.0, and the proportion of the structural units derived from the dicarboxylic anhydride (b) in the polyester-ether diol (A) is 10-50 mass%.