Aqueous polyelectrolytic electrocoating materials of organic resins

Claim 1

An aqueous polyelectrolytic electrocoating concentrate dispersable in water to form a bath used in contact with an anode and a cathode in an electric circuit of an electrocoating process for electrocoating a metal substrate, which comprises from about 20 to 60 weight percent synthetic polycarboxylic acid resin solids based on the concentrate, said solids being soluble in alcohols haivng from 1 to 5 carbon atoms, and having from 50 to 85 percent of their reactive sites neutralized with a sufficient quantity of water soluble amino compound to maintain the polycarboxylic acid resin solids as a dispersion of anionic polyelectrolyte in the concentrate, and a monohydric alcohol having from 1 to 5 carbon atoms selected from the group consisting of methanol, ethanol, propanol, isopropanol, n-butanol, isobutanol, sec-butanol, tert-butanol, amyl alcohol and isoamyl alcohol, said alcohol being at least partly associated with and dispersed in the resin concentrate in an amount of from 2.0 to 20 weight percent based on the weight of the resin solids, the presence of said alcohol being to at least maintain the resistivity and increase the throwing and wetting power of the medium bath, and to provide a higher quality, more pliable coating which releases more vapors from and leaves less voids in the coating upon curing than if said monohydric alcohol were not present in the concentrate.