(CN106432703) 本发明公开了种高固体含量羟基聚酯树脂及其制备方法与应用。其制备方法是：(1)向反应釜中加入配方量的小分子多元醇、聚醚多元醇、酸酐和溶剂，搅拌升温至90‑110℃反应3‑4h，至体系透明；(2)添加环氧化合物和催化剂，保持温度在90‑120℃反应4‑12h待酸值达到10mgKOH/g以下，降温出料得到高固体含量羟基聚酯树脂。该树脂固体分达到79％以上，黏度为400‑1900mPa·s。该羟基聚酯树脂制备方法简单，无副产物生成，成本低廉，反应条件温和，适合于大规模生产。采用该羟基聚酯树脂制备的双组份聚氨酯涂料的施工固含高，VOC含量低，涂膜硬度高、丰满度高、保光保色性好和耐介质性能优异。
(CN106432703) 1. A high solids content of hydroxyl groups of the polyester resin preparation method, characterized in comprising the steps of: Small molecules are added to (1) the kettle polyol, polyether polyol, an acid anhydride and a solvent, stirring was increased to 90-110 Ć reaction 3-4h, after transparent to the system; With ring of an epoxy compound and catalyst added (2), maintaining the temperature at 90-120 Ć reaction 4-12h until the acid value reached 10 mgKOH/g or less, hydroxy polyester resin to obtain a high solids content effluent cooling; catalyst is tetraethylammonium bromide, tetrabutylammonium bromide and cetyl ammonium bromide in a mixture of one or more; By mass %, hydroxyl polyester resin made of a high solids content of solids was 79% or greater, viscosity at 400-1900 mPa.s.
(CN106432703) LEGAL DETAILS FOR CN106432703 Actual or expected expiration date=2036-09-26 Legal state=ALIVE Status=PENDING Event publication date=2016-09-26 Event code=CN/APP Event indicator=Pos Event type=Examination events Application details Application country=CN CN201610850816 Application date=2016-09-26 Standardized application number=2016CN-0850816 Event publication date=2017-02-22 Event code=CN/A Event type=Examination events Published application Publication country=CN Publication number=CN106432703 Publication stage Code=A Publication date=2017-02-22 Standardized publication number=CN106432703 Event publication date=2017-02-22 Event code=CN/C06 Event indicator=Pos Event type=Examination events Publication Event publication date=2017-03-22 Event code=CN/C10 Event type=Examination events Request of examination as to substance
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