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US 8,362,095 B2Granted
Defoaming of ionic liquids
AssigneeEvonik Goldschmidt GmbH
InventorsPeter Schwab, Christian Mund, Kerstin Kugel, Hans-Juergen Koehle, Rene Haensel
Life of this patent
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Abstract
The invention relates to the defoaming of ionic liquids and also to compositions comprising at least one ionic liquid and at least one antifoam and, if appropriate, a solvent and/or further auxiliaries or additives.
Claims11
A method of defoaming a composition containing at least 80% by weight of one or more ionic liquids and, optionally, a solvent and/or further auxiliaries or additives, the composition being free of ketone residues, ketone-aldehyde resins, and/or urea-aldehyde resins and/or their hydrogenated derivatives, the method comprising:
- adding a polyether siloxane antifoam to said composition.
Dependencies are inferred from the claim text.