Non-flammable solvent phosphatizing compositions yielding non wa

Details Non-flammable solvent phosphatizing compositions yielding non wa Non-flammable solvent phosphatizing compositions yielding non wa

1976-12-30

1978-10-03

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 617, 148 616, C23F 710

Patent

active

041182537

ABSTRACT:
A liquid phosphatizing composition, containing organic solvent such as 1,1,1-trichlorethane or trichlorofluoromethane, can provide phosphate coatings on metal articles. In addition to the organic solvent, the composition contains a phosphatizing proportion of phosphoric acid and a solubilizing liquid capable of solubilizing phosphoric acid in the organic solvent. The composition contains a minor amount of water, yet it is an amount exceeding the proportion of phosphoric acid, and the composition is non-flammable. Phosphatized coatings of desirable water insolubility are obtained.

REFERENCES:
patent: 3197345 (1965-07-01), Vullo et al.
patent: 4029523 (1977-06-01), Rowe et al.

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