Crosslinked oxyalkylated polyalkylenepolyamines

US4705834A · kind A · utility

Assignee

• BASF SE

Inventors

• Richard Baur · Mutterstadt, DE
• Knut Oppenlaender · Ludwigshafen, DE
• Klaus Barthold · Mannheim, DE

Key dates

• Filing date: Dec 24, 1984
• Grant date: Nov 10, 1987
• Expiry date: Dec 24, 2004

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D17/047
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Crosslinked oxyalkylated polyalkylenepolyamines which can be obtained by reacting polyalkylenepolyamines, which are completely oxyalkylated at the nitrogen atoms, in each case by from 10 to 300 groups, and possess from 50 to 2,000 repeating alkyleneimine units in the molecule, with from 0.5 to 10% by weight, based on the oxyalkylated polyalkylenepolyamines, of a crosslinking compound which possesses two or more functional groups which are capable of reacting with the terminal alcohol groups of the oxyalkylated polyalkylenepolyamines, and a process for breaking water-in-oil emulsions.