| abstract |
(57) [Summary] [Structure] A high melting point crystalline polymer segment (a) mainly composed of a crystalline aromatic polyester unit, and a low melting point polymer segment mainly composed of an aliphatic polyether unit and / or an aliphatic polyester unit. Polyester block copolymer (A) containing (b) as a main component 5 to 95 parts by weight of a thermoplastic polyurethane elastomer (B) and 5 to 5 parts by weight of a styrene resin (C) in a resin composition, a method for producing the resin composition, and hot melt adhesion thereof. Agent. [Effect] According to the present invention, by blending the thermoplastic polyurethane elastomer and the styrene resin in the polyester block copolymer, the moldability during melt extrusion is good, and the adhesive strength and adhesive durability at high temperature are excellent. It is possible to obtain a resin composition. Further, the resin composition of the present invention, It can be produced by heating, melting and mixing in an extruder or a kneader. Furthermore, the resin composition of the present invention is useful as a hot melt adhesive. |