Protective coating for aluminum products

Details Protective coating for aluminum products Protective coating for aluminum products

1975-09-08

1977-01-25

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

427309, 427337, 427435, 428470, C23F 700

Patent

active

040049515

ABSTRACT:
This invention relates to the formation of a hydrophobic and usually oleophilic coating on an aluminum surface by treating the aluminum surface with an aqueous alkaline solution containing long chain aliphatic carboxylic acids, alkali metal salts or ammonium salts of such acids or other long chain aliphatic compounds which generate a long chain carboxylate anion in an alkaline solution.

REFERENCES:
patent: 2107288 (1938-02-01), Curran
patent: 2230273 (1941-02-01), Smith
patent: 2963391 (1960-12-01), Kubie
patent: 3228866 (1966-01-01), Pryor

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