Anticorrosive coating compositions

Details Anticorrosive coating compositions Anticorrosive coating compositions

1986-08-07

1988-01-19

Jacobs, Lewis T.

Coating processes

With pretreatment of the base

Metal base

427386, 427410, 523458, 523466, C08K 310

Patent

active

047204036

ABSTRACT:
A primer coating system is disclosed that is resistant to abrasion and corrosion and includes a basecoat or first layer comprising a resinous polyepoxide, an aminoplast, phenoplast or blocked isocyanate curing agent, an epoxy-phosphate, a chromium-containing pigment and a clay that has the capacity to fix phosphate. The system may further include an overcoat or second layer comprising a resinous polyhydric alcohol, a polyisocyanate, a chromium-containing pigment and the foregoing clay, and a third layer of a finish coating preferably based on a fluorine-containing polymer.

REFERENCES:
patent: 3896187 (1975-07-01), Weil
patent: 4433014 (1984-02-01), Gaske et al.
patent: 4605570 (1986-08-01), Felter et al.

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