Surface treatment method for tin-free steel

Details Surface treatment method for tin-free steel Surface treatment method for tin-free steel

1979-09-26

1982-03-09

Morgenstern, Norman

Metal treatment

Compositions

Heat treating

148 614A, 148 616, 148 621, 156327, 220 62, 220 83, 220455, 220456, 220457, 4273884, C23F 712

Patent

active

043187544

ABSTRACT:
A surface treatment method for tin-free steel, which comprises applying a water solution, containing a polymer obtained from one or two or more kinds of monomers of unsaturated carboxylic acids, on to the surface of a steel sheet having a metallic chromium layer formed thereon and having a film, mainly consisting of hydrated chromic oxide, formed on the above layer, and then conducting heating and drying. The coating of tin-free steel obtained by this method is excellent in adhesiveness and is most suitable for bonded cans requiring high-temperature treatment.

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patent: 3900689 (1975-08-01), Deyrup
patent: 3907608 (1975-09-01), Barrett et al.
patent: 3991230 (1976-11-01), Dickie et al.
patent: 3997694 (1976-12-01), Wu
patent: 4160056 (1979-07-01), Tanaka et al.
patent: 4164587 (1979-08-01), Borman

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