PROCESS AND REACTIVE SOLUTION FOR PRODUCING A PATINA

A patina is produced on a copper article using a reactive aqueous solution of copper salts and inorganic acid salts. A patina is produced on the surface of a copper or copper alloy article by cleaning the surface, applying an aqueous solution of copper salts and salts of inorganic acids and then dry...

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Bibliographische Detailangaben
Hauptverfasser:	STEFAN HOVELING, SONJA PRIGGEMEYER, STEFAN PRIGGEMEYER
Format:	Patent
Sprache:	eng ; por
Schlagworte:	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 MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	A patina is produced on a copper article using a reactive aqueous solution of copper salts and inorganic acid salts. A patina is produced on the surface of a copper or copper alloy article by cleaning the surface, applying an aqueous solution of copper salts and salts of inorganic acids and then drying while protecting against the weather. An Independent claim is also included for a reactive solution used in the above process and comprising an aqueous solution of copper salts and inorganic acid salts, preferably together with a wetting agent and a thickener.