| abstract |
A process for the preparation of semi-solid preparations containing micronized active ingredients is described, which is characterized in that a mixture of one or two nonionic surfactants with an HLB value of 9 to 18 with 2.3 to 100 times the amount by weight of a fatty acid ester general formula R 1 -COO-R 2 wherein R 1 and R 2 each represent alkyl groups or alkenyl groups having 12 to 32 carbon atoms, or a mixture of these fatty acid esters warmed until it melts, while stirring, the melt into 10 to 200 times the amount by weight of a semi-solid preparation which is heated to about the same temperature is, enters, the mixture cools with stirring and mixed with the micronized active ingredient or mixture of active ingredients and, if desired, with fragrances. |