Metal surface treatment

Details Metal surface treatment Metal surface treatment

1975-01-28

1977-11-22

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

148 62, C09D 508, C23F 726

Patent

active

040594521

ABSTRACT:
Disclosed is a method of coating a metal surface by contacting it with an aqueous acidic solution containing hexavalent chromium and either a non-ionic surfactant having the formula

REFERENCES:
patent: 3472681 (1969-10-01), Schuster et al.
patent: 3535167 (1970-10-01), DE Ridder et al.
patent: 3578508 (1971-05-01), Pearlman
patent: 3664883 (1972-05-01), Henry
patent: 3679493 (1972-07-01), Beiswanger et al.
patent: 3687739 (1972-08-01), Kennedy et al.
patent: 3718509 (1973-02-01), Germano
patent: 3779815 (1973-12-01), Hamilton et al.

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