POLYAMINE CURING AGENTS FOR EPOXY RESINS EXHIBITING REDUCED CARBONATION

摘要

Novel amine-terminated epoxy adducts are made by reacting a core epoxy resin, which contains an adduct made by reacting lower molecular weight excess epoxy resin with an amine chain extender that contains on average 1.8 to 2.2 amine hydrogen atoms per molecule, with an excess of polyamine compound at a temperature of 50 DEG C to 140 DEG C. The adducts are useful as hardeners in aqueous and high solids curable coating formulations that contain epoxy resins.