Polyhydroxy-polyalkylene-polyamine salts of maleic amide acids as corrosion inhibitors in water-in-oil emulsions

US4405494A · kind A · utility

Assignee

• BASF SE

Inventors

• Knut Oppenlaender · Ludwigshafen, DE
• Erich Schwartz · Ludwigshafen, DE
• Klaus Barthold · Mannheim, DE
• Wilhelmus Slotman · Ludwigshafen, DE

Key dates

• Filing date: Dec 10, 1981
• Grant date: Sep 20, 1983
• Expiry date: Dec 10, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S516/07
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Polyhydroxy-polyalkylene-polyamine salts of maleic amide acids are useful metal corrosion inhibitors for use in water-in-oil emulsions.