Anticorrosion coating composition

Details Anticorrosion coating composition Anticorrosion coating composition

1991-07-23

1992-07-21

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

106 1421, 2523895, 25238952, 25238953, C09D 510

Patent

active

051319489

ABSTRACT:
An improved anticorrosion coating composition is disclosed. The composition is characterized in that in the known anticorrosion coating composition comprising a chromic acid compound or a chromic acid compound and a boric acid compound, a powder of zinc, aluminum of an alloy of a mixture thereof, a (poly)glycol compound and solvent, a part of chromic acid compound ingredient is replaced by a water-soluble nickel and/or cobalt compound. The composition exhibits a better corrosion protection performance in more severe corrosion environment than the known anticorrosion coating composition with lesser content of harmful hexavalent chromium.

REFERENCES:
patent: 4266975 (1981-05-01), Higashiyama et al.
patent: 4626453 (1986-12-01), Koltz et al.
patent: 4791008 (1988-12-01), Koltz et al.

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