| abstract |
PROBLEM TO BE SOLVED: To provide a coating type surface treatment technique which has no problem of ammonia odor and has excellent corrosion resistance and adhesion to a top coating. A coating-type surface treatment agent comprising at least one metal selected from the group consisting of zirconium, titanium and vanadium, and α, β-monoethylenically unsaturated dicarboxylic acids. [Selection figure] None |