Anticorrosive agent for aluminium and aluminium alloys

• Main Authors: HELWERTH; RAINER, LORKE; HORST
• Format: Patent
• Language: English
• Published: 06.04.1982
• Subjects: 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; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; 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; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE

Anticorrosive agent for aluminium and the alloys thereof consisting of (A) 15 to 50% by weight of a product obtained by reaction of sulfochlorination products of aliphatic, alkylaromatic, or cycloaliphatic hydrocarbons with ammonia or an alkyl or hydroxyalkyl amine with subsequent reaction with a halocarboxylic acid and conversion into an alkaline earth metal or the zinc salt, (B) 40 to 90% by weight of a paraffinic hydrocarbon, (C) 1 to 4% by weight of the salt of an alkyl amine and a carboxylic acid, (D) 1 to 4% by weight of an alkyl phenol oxethylate and (E) 1 to 2% by weight of a C4-C8 alkanol.