Patent ID: 8841241

Claim:
An anionic ether surfactant of the general formula (I) R 1 O—BO x —PO y -EO z —X—Y a− a/b M b+ (I), wherein R 1 corresponds to an aliphatic, branched hydrocarbon group C n H 2n+1 derived from a Guerbet alcohol (GA); wherein n corresponds to the number of carbon atoms and ranges from 17 to 36, wherein BO corresponds to a butoxy group; wherein x corresponds to the number of butoxy groups and ranges from 2 to 25; wherein PO corresponds to a propoxy group; wherein y corresponds to the number of propoxy groups and ranges from 0 to 25; wherein EO corresponds to a ethoxy group; wherein z corresponds to the number of ethoxy groups and ranges from 0 to 70; wherein X is selected from a single bond, an alkylene group with 1 to 10 carbon atoms or an alkenylene group with 2 to 10 carbon atoms; wherein Y is an anionic group selected from the group of sulfate groups, sulfonate groups, carboxylate groups, phosphate groups or phosphonate groups; wherein M is the counter ion to the anionic group, wherein a corresponds to a number of 1 or 2, wherein b corresponds to a number of 1 to 3.