Ionic liquids having a content of ionic polymers

US8703670B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Aurelie Alemany · Stuttgart, DE
• Dirk Gerhard · Mannheim, DE
• Bolette Urtel · Frankenthal (Pfalz), DE

Key dates

• Filing date: Jul 22, 2011
• Grant date: Apr 22, 2014
• Expiry date: Jun 27, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Method of adjusting the viscosity of a salt having a melting point of less than 100° C. at atmospheric pressure (referred to as ionic liquid for short), wherein an oligomeric or polymeric compound which has a content of at least 0.01 mol of covalently bound acid groups/100 g of compound with at least 1% of the acid groups being present as a salt with an organic cation comprising at least one heteroatom selected from among nitrogen, oxygen, sulfur and phosphorus is added to the ionic liquid.