Electrodepositable coating compositions including ungelled reaction products of epoxy functional polyesters and amines, coated substrates and methods of electrocoating using the same

摘要

The present invention is directed to electrodepositable coating compositions providing improved film flexibility and humidity resistance. The compositions contain a substantially ungelled resin or reaction product formed from reacting (i) an epoxy functional polyester with (ii) an amine. The present invention also includes a method for electrocoating a conductive substrate with the described electrodepositable coating compositions. Additionally, the present invention is directed to a conductive substrate coated according to the described method.