Alkoxylated amido-containing polyamines and their use for breaking oil-in-water and water-in-oil emulsions

US4935162A · kind A · utility

Assignee

• BASF SE

Inventors

• Klaus Barthold · Mannheim, DE
• Richard Baur · Mutterstadt, DE
• Rolf Fikentscher · Ludwigshafen, DE
• Juergen Lasowski · Tokyo, JP
• Knut Oppenlaender · Ludwigshafen, DE

Key dates

• Filing date: Oct 16, 1987
• Grant date: Jun 19, 1990
• Expiry date: Oct 16, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G33/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Alkoxylated amido-containing polyamines which are suitable as oil demulsifiers are obtainable by condensing a dicarboxylic acid of 3 to 20 carbon atoms or one of its functional derivatives with a polyalkylenepolyamine having 2 or more carbon atoms and 2 or more amino groups and reacting the product with a total of from 1 to 200 moles/mole of ethylene oxide and/or propylene oxide and/or 1,2-butylene oxide.