RESINOUS DISPERSIONS INCLUDING AN EPOXY AMINE ADDUCT FOR FLATTING AND RELATED ELECTRODEPOSITABLE COATING COMPOSITIONS

摘要

Disclosed herein are resinous dispersions suitable for use in an electrodepositable coating composition. The resinous dispersions include: (a) an epoxy-amine adduct formed as the reaction product of reactants comprising (i) an epoxy-containing compound having at least one active hydroxyl group; and (ii) an amine-containing compound having a primary and a tertiary amine group; (b) an acid; (c) a second epoxy-containing compound; and (d) water. The resinous dispersion may be introduced into cationic electrodepositable coating compositions. Coated substrates formed with such cationic electrodepositable coating compositions may achieve 60° gloss readings of 3 or less at conventional film builds.