| abstract |
Described is a method of producing finely dispersed oil-in-water emulsions with long-term stability, based on oil mixtures with a high proportion of polar oil constituents by emulsifying, in the presence of 8 to 85 % by wt. of water, at a temperature above the melting point of the mixture, the following constituents A to D: (A) 10 to 90 % by wt. of a polar oil, (B) 0.5 to 30 % by wt. of a non-ionic emulsifier with an HLB value of 10 to 18, (C) 0 to 30 % by wt. of a co-emulsifier selected from the group comprising fatty alcohols with 12 to 22 C-atoms and the partial esters of polyols having 3 to 6 C-atoms with fatty acids having 12 to 22 C-atoms and (D) 0.01 to 50 % by wt. of an interface moderator selected from the group comprising the tocopherols, the guerbet alcohols having 16 to 20 C-atoms and a steroid having 1 to 3 OH-groups, and heating the emulsion to a temperature within or above the phase-inversion temperature range , or producing the emulsion at this temperature, and then cooling the emulsion to a temperature below the phase-inversion temperature range and, optionally, diluting with water. |