| abstract |
The invention relates to a preparation for passivating metal surfaces, containing at least one itaconic acid homopolymer or copolymer (A), water and/or another solvent, which is suitable for dissolving, dispersing, suspending, or emulsifying the homopolymer or copolymer (A), as component (B), at least one organic Ti or Zr compound (C), and optionally at least one Zn or Mg salt (D). The invention further relates to a method for producing a passivation layer on a metal surface, characterized in that the metal surface is treated with such a preparation. The invention further relates to a passivation layer on a metal surface that can be obtained by such a method. The invention further relates to a metal surface comprising such a passivation layer. The invention further relates to the use of preparations according to the invention for passivating a metal surface. |