| abstract |
(57) [Problem] To provide a chromium-free metal surface treatment agent and the like used for imparting excellent corrosion resistance, alkali resistance and fingerprint resistance to a metal material. SOLUTION: A metal surface treating agent containing a resin compound represented by the following formula, a vanadium compound, and a compound of a metal selected from Zr, Ti, Mo, W, Mn and Ce: [In the formula, R 1 is -CH 2 -, - CH 2 -NH -CH 2 - or -CH = N-CH 2 -, Y represents H or the formula (I I) The stands, Z is an aromatic compound residue or the like, W is H or group P, wherein P is -CH 2 X, -CH 2 NHCH 2 X or -CH = NCH 2 X (wherein, X is OH, OR 4, halogen, -N (R 5) (R 6) or -N + (R 7) (R 8) (R 9 ) represents A − ), and the substitution ratio of the group P is the number of the groups P / (the sum of the number of the benzene rings and the number of the groups Z) = 0.2 to 0.2 4.0, n = 0-29, m = 0-10] |