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    • 5. 发明公开
    • Method for preparing polyester resin copolymerized with isosorbide
    • 用异氰酸酯共聚的聚酯树脂的制备方法
    • KR20100079775A
    • 2010-07-08
    • KR20080138345
    • 2008-12-31
    • SK CHEMICALS CO LTD
    • PARK KYU TAEKIM JONG RYANG
    • C08G63/58C08G63/66C08G63/78C08G63/85
    • C08G63/672C08G63/85C08G63/87
    • PURPOSE: A producing method of a polyester resin copolymerized with isosorbide is provided to improve the productivity of the resin by enhancing the reactivity, and to reduce the metal content used as a catalyst for improving the transparency. CONSTITUTION: A producing method of a polyester resin copolymerized with isosorbide comprises the following steps: esterification reacting carboxylic acid and a glycol component including the isosorbide; and poly-condensing the esterification reactant using a titanium group compound selected from the group consisting of a titanium dioxide and silicon dioxide copolymer, a titanium dioxide and zirconium dioxide copolymer, and their mixture as a polycondensation catalyst.
    • 目的:提供与异山梨酯共聚的聚酯树脂的制造方法,通过提高反应性,降低作为提高透明性的催化剂的金属含量,提高树脂的生产率。 构成:与异山梨醇共聚的聚酯树脂的制造方法包括以下步骤:羧酸与包含异山梨醇的二醇组分的酯化反应; 并使用选自二氧化钛和二氧化硅共聚物,二氧化钛和二氧化锆共聚物的钛基化合物及其混合物作为缩聚催化剂将酯化反应物聚缩聚。