Curing agent for epoxy resin and coating composition

摘要

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.

<Paragraphs id="pa02" num="0002" xmlns:base="http://www.sipo.gov.cn/XMLSchema/base">Coating composition comprising the epoxy curing agent of the above described A or B.