METHOD FOR PASSIVATING A METALLIC SURFACE

The present invention relates to a method for passivating metallic surfaces, wherein the metal surface is contacted with an aqueous composition comprising at least one water-soluble polymer (X) comprising acidic groups and with at least one polyamine (P), the pH of the composition being in the range...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WITTELER HELMUT, SCHADE CHRISTIAN, BERTKAU WALTER, RICHTER FRANK, FESENBECKER ACHIM, HAAS JENS
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CORRECTING FLUIDS DIFFUSION TREATMENT OF METALLIC MATERIAL DYES FILLING PASTES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL INKS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention relates to a method for passivating metallic surfaces, wherein the metal surface is contacted with an aqueous composition comprising at least one water-soluble polymer (X) comprising acidic groups and with at least one polyamine (P), the pH of the composition being in the range from 0.5 to 2.