FORBETTRAD TERMOPLASTISK SAMPOLYETERESTERKOMPOSITION VARVID SAMPOLYETERESTERN MODIFIERATS MED EN POLYEPOXID

摘要

A thermoplastic copolyester composition comprising: (a) at least one segmented copolyester polymer consisting essentially of (1) about 5-85 weight percent of recurring long-chain ester units derived from at least one dicarboxylic acid having a molecular weight below about 300 and at least one poly(alkylene oxide) glycol having a molecular weight between about 400-6,000 and a carbon to oxygen ratio of about 2.0-4.3 and (2) 15-95 weight percent short-chain ester units which are derived from at least one low molecular weight diol having a molecular weight of less than about 250 and at least one dicarboxylic acid having a molecular weight of less than about 300, and (b) from 0.5-10 equivalents, per equivalent of carboxyl group contained in said copolyester of a polyepoxide having a functionality of not less than about 2.