Metal treatment – Process of modifying or maintaining internal physical... – Processes of coating utilizing a reactive composition which...
Patent
1989-02-21
1990-09-11
Silverberg, Sam
Metal treatment
Process of modifying or maintaining internal physical...
Processes of coating utilizing a reactive composition which...
148265, 148267, 148269, C23C 2230
Patent
active
049560271
ABSTRACT:
An aqueous solution of a reducing agent is applied to a chromate coated metal surface to reduce the extent to which the chromate coating undergoes dissolution during a subsequent cleaning process.
REFERENCES:
patent: 2768104 (1956-10-01), Schuster
patent: 2777785 (1957-01-01), Schuster
patent: 3493441 (1970-02-01), Rausch
patent: 3535168 (1970-10-01), Thompson
patent: 3620777 (1971-11-01), Okabe
patent: 3932198 (1976-01-01), Schneider
patent: 3935035 (1976-01-01), Tanaka
Aoki Takayuki
Saeki Kenshi
Yoshitake Noriaki
Jaeschke Wayne C.
Nihon Parkerizing Co. Ltd.
Silverberg Sam
Szoke Ernest G.
Wisdom, Jr. Norvell E.
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