Process for coating aluminum or aluminum alloy

Details Process for coating aluminum or aluminum alloy Process for coating aluminum or aluminum alloy

1974-07-01

1976-03-23

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

148 615R, 148 62, 148 63, 148 315, 204 38A, 204 58, 428469, 428 13, C25D 500, C25D 1306, C25D 1320

Patent

active

039458997

ABSTRACT:
A process for coating an aluminum or aluminum alloy comprising the steps of subjecting the aluminum or aluminum alloy to boehmite treatment or chemical conversion treatment, anodizing the resulting aluminum or aluminum alloy in an aqueous solution of a water-soluble salt of at least one oxyacid, and thereafter coating the aluminum or aluminum alloy with an organic coating composition to form a resin layer, said oxyacid being at least one oxyacid selected from the group consisting of silicic acid, boric acid, phosphoric acid, molybdic acid, vanadic acid, permanganic acid, stannic acid and tungstic acid.

REFERENCES:
patent: 1068410 (1913-07-01), Chubb
patent: 1850298 (1932-03-01), Washington, Jr.
patent: 2116449 (1938-05-01), Robinson
patent: 2859148 (1958-11-01), Altenpohl
patent: 2868702 (1959-01-01), Brennan
patent: 2981647 (1961-04-01), Schwartz
patent: 3622473 (1971-11-01), Ohta et al.
patent: 3775266 (1973-11-01), Ikeda et al.
patent: 3785946 (1974-01-01), Terai et al.
patent: 3798143 (1974-03-01), Rolles et al.
patent: 3799848 (1974-03-01), Kolic et al.
patent: 3834999 (1974-09-01), Hradcovsky et al.
patent: 3836437 (1974-09-01), Osada et al.

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