Process for the electrolytic coating of conductive substrates wi

Details Process for the electrolytic coating of conductive substrates wi Process for the electrolytic coating of conductive substrates wi

1980-09-23

1981-10-27

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25D 1308

Patent

active

042971888

ABSTRACT:
Process for coating a conductive substrate used as the anode in an electrochemical cell, in which a direct electric current is passed from a cathode to the said anode through an electrolytic liquid containing a phenolic monomer in order to form a polymeric film of phenolic resin on the substrate.
The electrolyte includes from 10 to 200 g/l of allylphenol or a mixture of such with other phenols, and from 5 to 200 g/l of an aliphatic amine, in solution in a mixture of water and alcohol. The polymeric film is deposited by using an electric current of a density not greater than 50 mA/cm.sup.2 of substrate, and the polymeric film so deposited is heated to a temperature of from 100.degree. to 200.degree. C. in order to induce the hardening of the said resin.

REFERENCES:
patent: 3335075 (1967-08-01), Bonman
patent: 3655543 (1972-04-01), Dijkstra et al.

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