Emulsifier for low-viscosity w/o emulsions, based on partially crosslinked polyglycerin esters of polyhydroxystearic acid.

The invention relates to polyglycerol partial esters of polyhydroxystearic acid and polyfunctional carboxylic acids obtainable by esterification of a polyglycerine mixture with polyhydroxystearic acid with N = 1 to 10, preferably 2 to 8, in particular 3 to 5 units and dimer fatty acids obtained by catalytic dimerization of unsaturated fatty acids having 12 to 22 C Atoms were obtained and have an average functionality of 2 to 3, and / or with aliphatic, linear or branched dicarboxylic acids having a chain length of 2 to 16 carbon atoms and additionally saturated or unsaturated, linear or branched fatty acids having 6 to 22 carbon atoms , preferably 12 to 18 C-atoms, wherein the degree of esterification of the polyglycerol mixture is between 20 and 75%, preferably 40 to 70%.