METAL PRETREATMENT WITH ACIDIC AQUEOUS COMPOSITIONS COMPRISING SILANES

The object of the underlying invention consists of an acidic aqueous metal pretreatment solution that comprises amino-functional organosilanes, complex anions of the elements Zr, Ti, Hf and/or Si as well as oxyacids of phosphorus. These types of metal pretreatment solutions effectively reduce tempor...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ZHANG, QI, STODT, JÜRGEN, SUNDERMEIER, UTA, WOLPERS, MICHAEL
Format:	Patent
Sprache:	eng ; fre
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 METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION USE OF MATERIALS THEREFOR WOODSTAINS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The object of the underlying invention consists of an acidic aqueous metal pretreatment solution that comprises amino-functional organosilanes, complex anions of the elements Zr, Ti, Hf and/or Si as well as oxyacids of phosphorus. These types of metal pretreatment solutions effectively reduce temporary corrosion when applied to metal surfaces and in addition confer good adhesion properties for subsequently coated organic lacquers. The invention consequently also encompasses a process for the treatment of metal substrates, especially selected from zinc and zinc-coated steel substrates, wherein metal pretreatment solutions of this invention are applied. L'objet de l'invention consiste en une solution aqueuse acide de prétraitement de métaux, qui comprend des organosilanes à fonctionnalité amino, des anions complexes des éléments Zr, Ti, Hf et/ou Si, ainsi que des oxyacides du phosphore. Ces types de solutions de prétraitement de métaux réduisent efficacement la corrosion temporaire quand elles sont appliquées sur des surfaces métalliques et en outre confèrent de bonnes propriétés d'adhérence pour des vernis organiques ultérieurement appliqués. L'invention englobe en conséquence aussi un procédé pour le traitement de substrats métalliques, choisis notamment parmi les substrats de zinc et d'aciers galvanisés, dans lequel sont appliquées les solutions de prétraitement de métaux de la présente invention.