Patent ID: 6852807

Claim:
An resin composition obtained by blending; (1) 20˜99 weight % of an aliphatic polyester formed by an esterification of aliphatic dicarboxylic acid or its anhydride and aliphatic glycol; and/or unsaturated aliphatic dicarboxylic acid or its anhydride and unsaturated aliphatic glycol, and a glycol-removing reaction thereafter, wherein said polyester has a melting point of 30˜200, a number average molecular weight of 1,500˜150,000 and a weight average molecular weight of 1,500˜300,000; and (2) 80˜1 weight % of a polyester urethane formed by a reaction of aliphatic polyester and diisocynate, wherein said polyester urethane has a melting point of 120˜200, a number average molecular weight of 1,000˜150,000, a weight average molecular weight of 1,500˜300,000 and a surface hardness of 50˜120 (A type).