Compositions: coating or plastic – Coating or plastic compositions – Corrosion inhibiting coating composition
Patent
1991-09-03
1993-06-29
Stoll, Robert L.
Compositions: coating or plastic
Coating or plastic compositions
Corrosion inhibiting coating composition
106 1438, 106 1442, 106 1443, C09D 508
Patent
active
052230252
ABSTRACT:
A coating composition that inhibits corrosion of metal substrates, a method of inhibiting corrosion of a metal substrate with a corrosion-inhibiting coating composition, and a metal article that resists corrosion are disclosed. The corrosion-inhibiting coating composition comprises: (a) a high molecular weight epoxy resin; (b) a phenolic resin; (c) an organic corrosion inhibitor having the general structural formula ##STR1## wherein each R is selected, independently, from the group consisting of hydrogen, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl, cycloalkyl, phenyl, alkylphenyl, phenylalkyl, halo, cyano, nitro, carboxyl, carboxyalkyl, hydroxy, amino, and carbamoyl, and wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are selected, independently, from the group consisting of hydrogen, alkyl, hydroxyalkyl, haloalkyl, alkoxyalkyl, carboxyalkyl, carboxyl, phenyl, and phenylalkyl, and wherein at least one of the R.sub.1, R.sub.2, R.sub.3 and R.sub.4 groups is a carboxyl group; and (d) a suitable nonaqueous carrier.
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R. A. Behrens, A. Braig, "A New, Organic Corrosion Inhibitor for Coatings", Water-Borne & Higher Solids Coatings Symposium, Feb. 3-5, 1988.
Fee Valerie
Stoll Robert L.
The Dexter Corporation
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