guerbet carbonates based on fatty alcohols containing 6 to 18 and preferably 8 to 10 carbon atoms esters of benzoic acid with linear and or branched c 6 22 alcohols for example finsolv u00ae tn linear or branched symmetrical or nonsymmetrical dialkyl ethers containing 6 to 22 carbon atoms per alkyl group such as for example dicaprylyl ether cetiol u00ae oe ring opening products of epoxidized fatty acid esters with polyols silicone oils cyclomethicone silicon methicone types etc and or aliphatic or naphthenic hydrocarbons for example squalane squalene or dialkyl cyclohexanes suitable co emulsifiers are for example nonionic surfactants from at least one of the following groups products of the addition of 2 to 30 mol ethylene oxide and or 0 to 5 mol propylene oxide onto c 12 22 fatty acids and alkyl phenols containing 8 to 15 carbon atoms in the alkyl group and alkylamines containing 8 to 22 carbon atoms in the alkyl group alkyl and or alkenyl oligoglycosides containing 8 to 22 carbon atoms in the alkyl group and ethoxylated analogs thereof adducts of 1 to 15 mol ethylene oxide with castor oil and or hydrogenated castor oil adducts of 15 to 60 mol ethylene oxide with castor oil and or hydrogenated castor oil partial esters of sorbitan with unsaturated linear or saturated branched fatty acids containing 12 to 22 carbon atoms and or hydroxycarboxylic acids containing 3 to 18 carbon atoms and adducts thereof with 1 to 30 mol ethylene oxide partial esters of polyglycerol average degree of self condensation 2 to 8 polyethylene glycol molecular weight 400 to 5000 trimethylolpropane pentaerythritol sugar alcohols for example sorbitol alkyl glucosides for example methyl glucoside butyl glucoside lauryl.