Compositions for protecting steel surfaces against atmospheric o

Details Compositions for protecting steel surfaces against atmospheric o Compositions for protecting steel surfaces against atmospheric o

1987-09-21

1989-02-28

Silverbert, Sam

Metal treatment

Compositions

Heat treating

C23C 2212

Patent

active

048082449

ABSTRACT:
Compositions for protecting steel surfaces against atmosferic oxidation comprising the quercitine derivative of monogallerylellogic acid, phosphoric acid, monoacid Zn phosphate, Zn nitrate, ascorbic acid, a water-miscible organic solvent ed water, said water-miscible organic solvent consisting of isopropyl glucol and ethoxypropanol.
Said compositions are applied directly to the oxidized, treated or non-treated, steel surfaces.

REFERENCES:
patent: 2493327 (1950-01-01), Vance
patent: 4293349 (1981-10-01), Pedrazzini
patent: 4670066 (1987-06-01), Schapins

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