METHOD FOR TREATING SURFACES OF ALUMINUM CONTAINING SUBSTRATES

The present invention relates to a method for treatment of at least one surface of a substrate, wherein said surface is at least partially made of aluminum and/or an aluminum alloy, comprising at least a step of contacting said surface with an acidic aqueous composition (A), said acidic aqueous comp...

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Bibliographische Detailangaben
Hauptverfasser:	SEBRALLA Lars, GODY Guillaume, SCHOENE Axel, LABEAU Marie- Pierre, KHELFALLAH Nawel Souad
Format:	Patent
Sprache:	eng ; spa
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
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Beschreibung
Zusammenfassung:	The present invention relates to a method for treatment of at least one surface of a substrate, wherein said surface is at least partially made of aluminum and/or an aluminum alloy, comprising at least a step of contacting said surface with an acidic aqueous composition (A), said acidic aqueous composition (A) comprising one or more metal compounds (M) selected from the group of titanium compounds, zirconium compounds and hafnium compounds and one or more linear polymers (P) containing (ml ) hydroxyethyl- and/or hydroxypropyl- (meth)acrylate, (m2) vinylphosphonic acid, and (m3) (meth)acrylic acid in form of their polymerized monomeric units, the one or more linear polymers (P) being comprised in the acidic aqueous composition (A) in an amount of 50 to 5000 ppm, based on the total weight of the acidic aqueous composition, to a corresponding acidic aqueous composition (A) as such, to a master batch to produce such acidic aqueous composition (A), to the use of the acidic aqueous composition (A) for treating surfaces and to substrates comprising the thus treated surfaces. La presente invención se refiere a un método para el tratamiento de al menos una superficie de un sustrato, en donde dicha superficie está hecha al menos parcialmente de aluminio y/o una aleación de aluminio, que comprende al menos un paso de poner en contacto dicha superficie con una composición acuosa ácida (A), dicha composición acuosa ácida (A) comprende uno o más compuestos metálicos (M) seleccionados del grupo de compuestos de titanio, compuestos de circonio y compuestos de hafnio y uno o más polímeros (P) lineales que contienen (m1) (met)acrilato de hidroxietilo y/o hidroxipropilo, (m2) ácido vinilfosfónico y (m3) ácido (met)acrílico en forma de sus unidades monoméricas polimerizadas, uno o más polímeros (P) lineales están comprendidos en la composición acuosa ácida (A) en un cantidad de 50 a 5000 ppm, en base al peso total de la composición acuosa ácida, a una composición acuosa ácida correspondiente (A) como tal, a un lote maestro para producir dicha composición acuosa ácida (A), al uso de la composición acuosa ácida (A) para tratar superficies y sustratos que comprenden las superficies así tratadas.