Abstract: Coating compositions applicable by conventional coating techniques as well as by electrodeposition are provided by reacting an epoxy-containing organic material with a compound containing at least one phenolic hydroxyl group and a group hydrolyzable to a carboxyl group. Examples of such hydrolyzable groups include ester groups, amide groups and nitrile groups. Compounds include esters of benzoic, salicylic and diphenolic acids, and phenolphthalein. The resultant product may then be hydrolyzed and solubilized, using any of the known hydrolyzing agents, e.g., aqueous potassium hydroxide, aqueous sodium hydroxide and aqueous solutions of the various amines used in the art.

Abstract: It has been found that aqueous coating compositions comprising acid-solubilized, imine-modified, carboxylic acid group-containing acrylic resins can be electrodeposited. These compositions deposit on the cathode to provide coatings having excellent properties.

Abstract: Block copolymers are prepared by reacting a polyester resin or polyol with a hydroxyl or carboxyl functional mercaptan and subsequently reacting the blocked polyester or polyol in the presence of oxygen, with selected vinyl monomers such as diacetone acrylamide, acrylic acid, 2-hydroxyethyl acrylate and the like. Such block copolymers provide for coating compositions having physical properties which render them useful as protective and/or decorative films.