Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1979-04-04
1980-09-30
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
C25D 1306, C25D 1310
Patent
active
042254078
ABSTRACT:
A method for electrodeposition of an organic material on an electroconductive surface comprising placing the electroconductive surface to be coated in contact with an aqueous dispersion containing a water-insoluble, essentially electrically nonconductive, film-forming, organic polymer as cation-active particles wherein the cation-activity is provided at least predominantly by reducible nitrogen-containing cations and 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: 3455805 (1969-07-01), Smith et al.
patent: 3567613 (1971-03-01), Kraus et al.
patent: 3645872 (1972-02-01), Weigel
Gibbs Dale S.
Wagener Earl H.
Wessling Ritchie A.
Murphy I. A.
The Dow Chemical Company
Williams Howard S.
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