POLYESTER ELASTOMERS, PROCESSES FOR PREPARING THE SAME, AND COMPOSITIONS OF THE SAME

摘要

A polyester elastomer comprising a crystalline aromatic polyester as a hard component, at least one polymer selected from among an aliphatic polyester, a polyether and a polycarbonate as a soft component, and further a polyisocyanate, a polyepoxide and a polybasic acid or an anhydride thereof, or a process for preparing a polyester elastomer comprising the above hard component, soft component, and dibasic acid or anhydride thereof; a polyester elastomer comprising a polyalkylene naphthalate and an aliphatic polyester, and a process for preparing the same; a composition comprising 30 to 90 % by weight of a polyester elastomer and 70 to 10 % by weight of an epoxy-modified polymer (the total amount of the elastomer and the polymer being 100 % by weight); a molding made from a resin comprising an aromatic polyester as a hard component and at least one polymer selected from among an aliphatic polyester, a polyether and a polycarbonate as a soft component; and a polyester elastomer comprising different aliphatic polyesters respectively as a hard component and a soft component, and a process for preparing the same.