Low cure cathodic electrodeposition coatings

摘要

A low temperature cure electrodepositable cathodic resin is disclosed. The resin is the reaction product of a polyepoxide amine adduct and a novel blocked crosslinking agent. The crosslinking agent of our invention is tetramethylxylene diisocyanate blocked with any suitable blocking agent. The resulting resin can be cured at relatively low temperatures (250 DEG -275 DEG F.), which potentially allows the use of the resin with articles containing plastics.