Abstract: The invention relates to cathodically electrodepositable coating compositions comprising an aqueous dispersion of self-crosslinkable resin. The self-crosslinkable resin is amine and epoxide functional and prepared by reacting epoxide resin with fatty amidopolyamine at about room temperature so as to form a partially crosslinked resin, wherein at least about 50 percent of the amine groups have been neutralized with a water soluble acid. The partially crosslinked resin can be deposited from the bath onto a metal substrate and cured at elevated temperatures to form a coating offering excellent corrosion protection and having excellent adhesion to the substrate.

Abstract: The invention relates to cathodically electrodepositable coating compositions comprising an aqueous dispersion of self-crosslinkable resin. The self-crosslinkable resin is amine and epoxide functional and prepared by reacting epoxide resin with polyamine at about room temperature, wherein at least 50 percent of the amine groups have been neutralized with water soluble acid. The polyamine contains at least one primary amine group and at least one tertiary amine group. The partially crosslinked resin product can be deposited on a metal substrate and cured at elevated temperatures to form a coating offering excellent corrosion protection and having excellent adhesion to the substrate.

Abstract: A coagulation process for coating various substrates with organic resins which may be admixed with reactive or nonreactive particles. The process comprises (A) providing the substrate to be coated with a dry coagulating compound surface and (B) exposing said substrate to an aqueous bath comprising an organic film forming material, at least fifty (50) weight percent of which is a chemically ionizable organic film-former which (i) has at least 12 carbon atoms per molecule; (ii) is at least partially ionized such that it is substantially soluble in said aqueous bath; and (iii) coagulates in the presence of said coagulating compound.