Novus International, Inc.

University of Oklahoma

Jeff Harwell

Graciela Arhancet

Brian Grady

Scott Long

Guangzhe Yu

Richard Vonder Embse

Xiaojun Wang

The present invention relates to microemulsions and methods of preparing and using the microemulsions.

Surfactant microemulsions

Monomeric and oligomeric compounds of Formula (I) comprising hydrophobic alkyl or alkenyl ester moieties and hydrophilic carboxylate moieties: wherein Ris C-Calkyl, Ris C-Calkyl or C-Calkenyl, Y is a cation, Z is a sulfur-containing moiety, and n and k are integers as defined herein. The compounds of Formula (I) have surfactant properties. Also provided are compositions comprising the compounds of Formula (I), and methods of using the compounds or compositions for cleaning purposes.

Anionic surfactants

The present invention provides sulfur- or selenium-containing compounds comprising hydrophobic moieties and ethoxylated ester or ethoxylated amide moieties such that the compounds have surfactant properties. Also provided are methods for using the disclosed compounds or mixtures thereof in a variety of applications.

Ethoxylated surfactants

The present invention provides sulfoxide compounds comprising hydrophobic ester or amide moieties such that the compounds have surfactant properties. Also provided are methods for using the sulfoxide compounds or mixtures of the sulfoxide compounds in a variety of applications.

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Norman, OK, United States of America

Jeff Harwell