Patent ID: 9598358
Date: 2017-03-21
CPC Classifications: A61K,A61Q,C07C,C11D

Claim:
1. A process useful for forming an aqueous composition of matter having a mixture of alkyl-substituted hydroxyethane sulfonates comprising the steps of: a) providing an alkylene oxide having between 3 and 8 carbon atoms per molecule; b) providing an aqueous solution comprising bi-sulfite anions; c) contacting the aqueous solution with the alkylene oxide while maintaining the pH at a range between about 6.0 and about 10.0, wherein the mixture of alkyl-substituted hydroxyethane sulfonates comprises: (i) a first anion having the structure: wherein R 1 is a straight chain or branched C 1 to C 6 alkyl group and R 2 is hydrogen; and (ii) a second anion having the structure: wherein R 4 is a straight chain or branched C 1 to C 6 alkyl group and R 3 is hydrogen.