NITROGEN-CONTAINING POLYMERS FOR METAL SURFACE TREATMENT
The invention relates to a passivating layer on a metal surface, which can be obtained by bring the metal surface into contact with a composition consisting of a water-soluble, nitrogen-containing polymer; a surface whose structure consists of a metal surface and the inventive passivating layer; a method for forming a passivating layer on a metal surface; the use of a composition consisting of a water-soluble, nitrogen-containing polymer, for passivating a metal surface; and a structure on a metal surface, comprising an inventive passivating layer and other coats of lacquer.