Use of salts of sulfonamidocarboxylic acids as corrosion inhibitors in aqueous systems

US4911888A · kind A · utility

Assignee

• BASF SE

Inventors

• Rolf Fikentscher · Ludwigshafen, DE
• Gerold Braun · Ludwigshafen, DE
• Chung-Ji Ischang · Bad Dürkheim, DE
• Christos Vamvakaris · Kallstadt, DE
• Reinhold Kohlhaupt · Bischofswerda, DE

Key dates

• Filing date: Jun 6, 1988
• Grant date: Mar 27, 1990
• Expiry date: Jun 6, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23F11/164
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Specific sulfonamidocarboxylic acids in the form of the alkali metal or alkanolamine salts are used as corrosion inhibitors in aqueous systems.