Patent ID: 6399716
Filing Date: 2002-06-04
Classification: C08G

Abstract:
A copolyester resin composition having number average molecular weight of from 30,000 to 90,000, comprising (i) 0.1 to 30% by weight of an aliphatic prepolymers represented by the following chemical formula 1:HOâ€”[OCâ€”(CH2)aâ€”COOâ€”(CH2)bâ€”O]nâ€”Hâ€ƒâ€ƒ(1) where a is 2Ëœ10, b is 2Ëœ10 and n is an integer such that the number average molecular weight of the aliphatic prepolymers is 300 to 30,000; (ii) one or a plurality of aromatic dicarboxylic acid (or an acid anhydride thereof); (iii) one or a plurality of aliphatic (including cyclic type) dicarboxylic acid (or an acid anhydride thereof); and (iv) one or a plurality of aliphatic (including cyclic type) glycol.