Corrosion-inhibiting coating compositions

Details Corrosion-inhibiting coating compositions Corrosion-inhibiting coating compositions

C - Chemistry, Metallurgy

09

D

31/49

C09D 5/08 (2006.01)

Patent

CA 1219745

Corrosion-inhibiting coating compositions Abstract of the Disclosure A corrosion-inhibiting coating composition contain- ing a) a film-former and b) as the corrosion inhibitor, an effective amount of an aliphatic or cycloaliphatic mono-, di-, tri- or -tetra- carboxylic acid which is substituted in its aliphatic or cycloaliphatic radical by at least one group of the formula I Image I in which X is oxygen, sulfur or NH and each R independently of the others is hydrogen, alkyl, halogenoalkyl, alkoxy, alkylthio, alkylsulfonyl, cycloalkyl, phenyl, alkylphenyl, phenylalkyl, halogen, -CN, -NO2, -COOH, -COOalkyl, -OH or a primary, secondary or tertiary amino or carbamoyl group, R not being -NH2 in the case of a monocarboxylic acid in which X is sulfur, and also base addition salts of these compounds are useful as corrosion inhibitors.

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