RUST INHIBITOR AND SURFACE-TREATED METAL MATERIAL

摘要

Disclosed is a rust inhibitor having excellent adhesion to a metal surface, which can stably exhibit a rust inhibiting effect for a long time. The rust inhibitor contains, as an active ingredient, a compound which has both a chelating group and a long-chain alkyl group or cyclic alkyl group through an ester bond or the like.  The compound is obtained by reacting a chelate ligand having a chelating group, such as an aminocarboxylic acid, an acetoacetic acid (ester) or a hydroxycarboxylic acid, with a compound having a long-chain alkyl group or a cyclic alkyl group, such as a long-chain (cyclic) alkylcarboxylic acid or a long-chain (cyclic) alkyl alcohol.  The rust inhibitor can be applied to a metal surface.