INHIBITION OF COPPER CORROSION

A method of providing a durable, corrosion inhibiting film on the surface of copper or copper-containing metal in contact with a dynamic, aggressive aqueous system having a pH substantially neutral to alkaline which comprises adding in a non-continuous manner a sufficient amount for the purpose of a...

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Bibliographische Detailangaben
1. Verfasser:	ORIN HOLLANDER
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL DYES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NATURAL RESINS NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PAINTS POLISHES TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	A method of providing a durable, corrosion inhibiting film on the surface of copper or copper-containing metal in contact with a dynamic, aggressive aqueous system having a pH substantially neutral to alkaline which comprises adding in a non-continuous manner a sufficient amount for the purpose of an alkyl benzotriazole having the formula: wherein R is a C3 to C6 linear alkyl, and permitting contact of the benzotriazole for a time sufficient to provide the film and thereafter discontinuing the feed of the benzotriazole and permitting any residual benzotriazole in the aqueous system to deplete.