RUST INHIBITOR AND SURFACE-TREATED METAL MATERIAL

摘要

A rust inhibitor usable for metal surface coating includes, as an effective component, a compound containing a chelate group, and a long chain alkyl group and/or a cyclic alkyl group, which are bonded by an ester bond or other bonds. The compound is obtained by reacting a chelate ligand having the chelate group, such as aminocarbonic acid, acetoacetic acid, acetoacetic ester, and hydroxycarbonic acid, with a compound having the long chain alkyl group and/or the cyclic alkyl group, such as long chain (cyclic) alkyl carbonic acid and long chain (cyclic) alkyl alcohol.