Patent ID: 6063895
Filing Date: 2000-05-16
Classification: C08G

Abstract:
A polyester resin comprising an aliphatic polyester having a number average molecular weight of from 30,000 to 70,000, determined by GPC; a weight average molecular weight of from 160,000 to 600,000, determined by GPC; a melting point of from 45.degree. C. to 60.degree. C., determined by DSC; and a melt flow index of from 0.1 to 50 g/10 min (190.degree. C., 2160 g) determined by ASTM D1238, which is prepared by polycondensation after performing reactions which are selected from at least one of the following reactions: a condensation reaction, or an esterification reaction, or an ester-exchange reaction with(1) adipic acid or a mixture of adipic acid with an aliphatic or alicyclic dicarboxylic acid or an anhydride thereof;(2) a glycol component which comprises at least one member selected from 1,4-butanediol and ethylene glycol; and(3) a monomer component which comprises at least one amine radical acting as a functional radical, of which the amount of the amine radicals is 0.1%-30% by weight based upon the weight of the polyester.