Non-aqueous composition for chemical treatment of a metallic sub

Details Non-aqueous composition for chemical treatment of a metallic sub Non-aqueous composition for chemical treatment of a metallic sub

1980-01-18

1981-03-24

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 62, C23F 710, C23F 726

Patent

active

042578280

ABSTRACT:
A non-aqueous composition for chemical treatment of the surface of a metallic substrate which comprises a chlorinated hydrocarbon solvent, chromic anhydride, phosphoric acid, a solubilizer and a stabilizer. By the use of such non-aqueous composition, chemical treatment can be achieved quickly with remarkable saving of operation steps. The coating resulting from such chemical treatment has a high corrosion resistance and an excellent adhesion with a paint coating film formed thereon.

REFERENCES:
patent: 2303242 (1942-11-01), Tanner et al.
patent: 2857298 (1958-10-01), Smith
patent: 3100728 (1963-08-01), Vullo et al.
patent: 3285788 (1966-11-01), Svadlenak

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