Electrophoretic coating process

Details Electrophoretic coating process Electrophoretic coating process

1981-11-12

1984-08-07

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25D 1306, C25D 1310

Patent

active

044642415

ABSTRACT:
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.

REFERENCES:
patent: 3455806 (1969-07-01), Spoor et al.
patent: 4231850 (1980-11-01), Kato
patent: 4246087 (1981-01-01), Tsou et al.
patent: 4294741 (1981-10-01), Bosso

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