Patent ID: 7879790

Claim:
A composition comprising a mixture of sodium and potassium salts of sulfo-estolides, which have the following Formula: wherein n is an integer from 1-30; one of X and Y is SO 3 —Z, the other of X and Y is H, and X and Y are independently assigned in each repeating unit; A 1 and A 2 are linear or branched, saturated or unsaturated, substituted or un-substituted, alkyl diradicals wherein the total number of carbons for each repeating unit is independent and in the range of C 8 to C 22 ; a is 0, 1, or 2, and is independently assigned in each repeating unit; R is linear or branched, saturated or unsaturated, substituted or un-substituted hydrocarbon wherein the total number of carbon atoms is from 1 to 24; W is a sodium or potassium cation, H, or an alkyl or substituted alkyl group; and Z is a sodium or potassium cation; wherein the sodium and potassium salts are present in the mixture in amounts sufficient to obtain a composition that is a clear, homogeneous liquid product.