| 摘要 |
<p>The invention relates to an aqueous coating material for metallic substrates, comprising a water-dispersible and/or water-soluble polymer P with covalently bonded ligands A, which form chelates with the metal ions released during the corrosion of the substrate and/or with the substrate surface, and having crosslinking functional groups B, which with themselves, with further complementary functional groups B' of the polymer P and/or with further functional groups B and/or B' are able to form covalent bonds to crosslinkers V.</p> |
