ELECTROLYTIC COATING OF CATHODIC SUBSTRATES

摘要

A process of coating with film-forming material an article which is made a cathode in an electrical circuit and is immersed in either an aqueous dispersion of a derivative of the film-forming material comprising a stabilizing cationic group hydrolyzable at the cathode or an aqueous dispersion of the film-forming material stabilized by association with a distinct surfactant comprising a cationic group hydrolyzable at the cathode, to yield the film-forming material as a coating on the cathode when electric current is passed between the cathode and a counter-electrode. Also suitable coating compositions in which the film-forming material is primarily stabilized by ionic groups hydrolyzable at the cathode.