Coating processes – Foraminous product produced – Metal base
Patent
1979-10-30
1981-11-03
Lawrence, Evan K.
Coating processes
Foraminous product produced
Metal base
427289, 427292, 427348, 427409, 427417, 427421, 427422, B05D 312, B05D 714
Patent
active
042986354
ABSTRACT:
According to the present invention the microporous surface of a corrodible metal body is protected against corrosive agents of the atmosphere and even such severely corrosive agents as those found in marine environments, by an impregnation in the pores of an inner protective material, preferably oil, that is substantially impervious to corrosive agents, and a covering of outer protective material, preferably resin, that is intimately bonded to the outer surface of the metal and bridges over the impregnated pores. After the impregnation, any of the inner protective material such as oil that may remain on the outer surface of the metal is selectively removed, while the inner protective material in the pores is selectively retained, whereby a secure, intimate bond of the covering to the metal is assured to protect the metal from corrosion initiating from the outside, while the inner protective material remains operatively disposed in the pores to protect the covering from corrosive undermining.
REFERENCES:
patent: 187559 (1877-02-01), Richardson
patent: 663281 (1900-12-01), Kopp
patent: 1159748 (1915-11-01), Comstock
patent: 1638342 (1927-08-01), Kessler
patent: 1834746 (1931-12-01), Short
patent: 2288633 (1942-07-01), Luckhaupt
patent: 2796363 (1957-06-01), Lalone
Gabriel Albert L.
Lawrence Evan K.
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