| abstract |
Esters of oligo-hydroxycarboxylic acids have the general formula ( ): n nwherein at least one of the radicals R 1 , R 4 or R 5 is a linear or branched aliphatic hydrocarbon radical having 6 to 30 carbon atoms and 0, 1, 2 or 3 double bonds. Cosmetic and pharmaceutical agents contain said esters. These esters are effective as thickeners, in particular for compositions containing surfactants. |