| abstract |
Surfactants derived from citric acid having then wherein: R, R', R 2 are equal or different from each other and are H, an alkaline metal, alkaline-earth metal or - NH4 cation, a cation of an organic ammonium base or a group having the formula:n general formula:n wherein:n A is a C 2- C 4 oxyalkylene group, n is a number ranging from 1 to 20 and R 3 is a C 8 -C 20 alkyl group, at least one of said R, R', R 2 being an -A n -R 3 group, and wherein the -OH group of the compound of formula (I) can be esterified or etherified. |