Process for electrodeposition of cross-linked polymer coatings

Details Process for electrodeposition of cross-linked polymer coatings Process for electrodeposition of cross-linked polymer coatings

1975-04-21

1977-04-12

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25D 1306

Patent

active

040173720

ABSTRACT:
A method for electrodeposition of an adherent, water-resistant, cross-linked, organic coating on an electroconductive surface comprising (a) placing the elecroconductive surface to be coated in contact with an aqueous dispersion containing a water-insoluble, essentially electrically non-conductive, film-forming, organic polymer as cation-active, structured particles wherein a substantial portion of the cation-activity is provided by pH independent cationic groups which are chemically bound to the polymer at or near the particle surface and (b) passing an electric current from an electrode through the latex to the electroconductive surface in such a direction that the electroconductive surface is negatively charged, i.e., becomes a cathode in an electrophoretic cell. By use of alternating current both electrodes become coated with an adherent coating of polymer.

REFERENCES:
patent: 3645872 (1972-02-01), Weigel
patent: 3761371 (1973-09-01), Dickie et al.

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