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    • 4. 发明公开
    • 유연성이 우수한 폴리카보네이트디올 함유 폴리에스터 수지 및 그의 제조방법
    • 含有极佳供应的聚碳酸酯的聚酯树脂及其制备方法
    • KR1020120076150A
    • 2012-07-09
    • KR1020100138179
    • 2010-12-29
    • 서울대학교산학협력단
    • 김현중문제익이용희
    • C08G63/78C08G63/64C08L67/00C09D167/00
    • C08G63/64
    • PURPOSE: A polycarbonatediol-containing polyester resin is provided to have excellent flexibility and moldability, and to reduce the used amount of solvent for reducing viscosity because of low viscosity relative with existing polyester resin. CONSTITUTION: A manufacturing method of a polycarbonatediol-containing polyester resin comprises: a step of ester coupling reaction to the dicarboxylic acid compound, and dihydroxy compound to equivalent ratio of 1:0.7-1:0.9; and a step of adding 15-50 weight% of polycarbonate diol to the product. A polyester resin containing polycarbonate diol manufactured by the manufacturing method has weight average molecular weight of 3,000-5,000, and is in chemical formula 1. In chemical formula 1, n is a positive integer.
    • 目的:提供含聚碳酸酯的聚酯树脂以具有优异的柔软性和成型性,并且由于与现有的聚酯树脂相比具有低粘度而降低粘度降低的溶剂用量。 构成:聚碳酸酯二醇的聚酯树脂的制造方法包括:与二羧酸化合物的酯偶联反应和二羟基化合物与当量比为1:0.7-1:0.9的步骤; 以及向该产品中加入15-50重量%的聚碳酸酯二醇的步骤。 通过该制造方法制造的含有聚碳酸酯二醇的聚酯树脂的重均分子量为3,000〜5000,为化学式1.化学式1中,n为正整数。