Process for cataphoretically coating the surfaces of electricall

Details Process for cataphoretically coating the surfaces of electricall Process for cataphoretically coating the surfaces of electricall

1978-11-20

1980-04-22

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25D 1310

Patent

active

041994221

ABSTRACT:
Method of cataphoretically coating the surfaces of electrically conducting substrates acting as cathodes in an electrical lacquering bath based on aqueous solutions and/or aqueous dispersions of salts of cationic film forming agents with organic and/or inorganic acids wherein the coating bath contains chloride ions dissolved therein with nitrate ions, nitrite ions, or a mixture of nitrate and nitrite ions in a weight ratio from about 0.01 to 8 parts of chloride ions to 1 part of nitrate ions, nitrite ions, or a mixture of nitrate and nitrite ions.

REFERENCES:
patent: 3954588 (1976-05-01), Hazan et al.
patent: 4086153 (1978-04-01), Ariga et al.

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