| abstract |
A highly corrosion-resistant hydrophilization agent, characterized in that it contains (a) a hydrophilic polymer, that is, a copolymer of N-vinylacetamide and a polymerizable monomer having a COOX group (in the formula, X means hydrogen atom, alkali metal atom or ammonium salt), (b) an organic cross-linking agent, and (c) at least one metal compound selected from Ti, V, Cr, Mn, Co, Zn, Zr, Mo, Ce and W. |