Importance

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Abstract

Use of a compound having a hydrophobic moiety attached to a hydrophilic moiety, wherein the hydrophilic moiety comprises a .beta.-keto acid group and the hydrophobic moiety is attached via a bond from a carbon or an oxygen of the hydrophobic moiety to a carbon of the .beta.-keto acid group, provided that the .beta.-carbon of the .beta.-keto acid group does not form part of a carboxyl or ester group, or a salt thereof, as a surfactant. A dispersion comprising said surfactant as a dispersing agent. A microemulsion comprising said surfactant. A method for breaking a dispersion comprising said surfactant as a dispersing agent, said method comprising the steps of a) providing said dispersion at a temperature where it is substantially stable; and b) setting the temperature of said dispersion, so as to achieve a desired decomposition rate of the surfactant. A method for reducing the surface tension between a liquid and another phase, comprising adding to the liquid said surfactant. Various applications making use of the surfactant properties of the compound. Use of an ester or amide of the compound as a surfactant precursor.

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First Claim