Salts of alkenylsuccinic acid monoamides

US4722812A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Werner Ritschel · Hofheim, DE
• Hermann Hoffmann · Echterdingen, DE

Key dates

• Filing date: Jan 14, 1986
• Grant date: Feb 2, 1988
• Expiry date: Jan 14, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23F11/145
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Salts of alkenylsuccinic acid monoamides of the formulae ##STR1## wherein R.sup.1 is C.sub.6 -C.sub.22 -alkenyl, preferably C.sub.9 -C.sub.18 -alkenyl, A is the protonized radical of an amidoamine of the formula II ##STR2## R.sup.2 is C.sub.5 -C.sub.22 -alkyl, preferably C.sub.10 -C.sub.18 -alkyl, C.sub.5 -.sub.22 -alkenyl or cycloalkyl, preferably C.sub.10 -C.sub.18 -alkenyl or cycloalkyl, R.sup.3 is a group of the formula ##STR3## R.sup.4 is either a group of the formula --COR.sup.2, R.sup.5 at the same time being hydrogen, or R.sup.4 and R.sup.5 at the same time have the same meaning as R.sup.3, Y is hydrogen or methyl, n is a number from 0 to 12 and x is a number from 1 to 3. These compounds are suitable as corrosion inhibitors in water-in-oil emulsions, in particular for petroleum and petroleum products.