A curing agent for epoxy resin, and a coating composition using the curing agent curing agent that delivers excellent recoatability and overcoatability after a long time exposure.
(A) An epoxy curing agent that is derived by adduction between amide-type reactants from polyamine compounds comprising from 25-75 mol% of a polyoxyalkylene-polyamine and carboxylic acids or a mixture thereof and glycidyl ether compound;
(B) An epoxy curing agent of the mixture of (B1) amide-type reactants prepared through polyoxyalkylene-polyamine and carboxylic acids or a mixture thereof, and (B2) a reactant is derived by adduction between other aliphatic polyamines or a mixture thereof and glycidyl ether compound.
Coating composition comprising the epoxy curing agent of the above described A or B.
一种用于环氧
树脂的固化剂,以及一种使用该固化剂的涂料组合物,该固化剂可在长时间暴露后提供优异的重涂性和过涂性。
(A) 一种环氧固化剂,它是由 25-75 摩尔%的聚氧亚烷基
多胺和
羧酸组成的
多胺化合物或其混合物与
缩水甘油醚化合物通过酰胺类反应物之间的加成反应而得到的;
(B) (B1)通过聚氧亚烷基
多胺和
羧酸或其混合物制备的酰胺类反应物,和(B2)通过其他脂肪族
多胺或其混合物与
缩水甘油醚化合物之间的加成反应生成的反应物混合物的环氧固化剂。
包含上述 A 或 B 的环氧固化剂的涂料组合物。