| abstract |
The invention relates to hydrophobed powders consisting of microcapsules and/or nanocapsules, obtained as follows: (a) an aqueous solution of at least one polymer is dispersed in oil in the presence of a W/O emulsifier at a temperature above the gel point of the polymer solution, (b) the dispersion is cooled to a temperature below the gel point by mixing, (c) the microcapsules or nanocapsules thus produced are isolated by decantation, and (d) the oily dispersion obtained according to step c) is laced with an oil-absorbing auxiliary agent. The invention also relates to the method for producing the hydrophobed powder and the use thereof in cosmetic and/or pharmaceutical preparations and detergents and cleaning agents. |