| 摘要 |
<p>A metal surface treatment composition is provided which improves corrosion resistance and film adhesion, and confers slip properties. This composition is an acrylic resin-containing metal surface treatment composition which is water-soluble, water-dispersible or emulsifiable, which comprises an acrylic resin, this resin comprising either or both of an amino group and an ammonium group together with a hydroxyl group and a hydrophobic group, and which further comprises a heavy metal or one of its salts. The amino or ammonium group in the acrylic resin comprises at least the structural unit represented bythe following chemical formulae (I) or (II): <CHEM> where R1, R2 are hydrogen, hydroxyl, a substituted or unsubstituted straight chain or branched alkyl group comprising 1-5 carbon atoms, or a substituted or unsubstituted straight chain or branched hydroxyalkyl group comprising 1-5 carbon atoms. <CHEM> where R3, R4, R5 are hydrogen, hydroxyl, a substituted or unsubstituted straight chain or branched alkyl group comprising 1-5 carbon atoms, or a substituted or unsubstituted straight chain or branched hydroxyalkyl group comprising 1-5 carbon atoms.</p> |
