| abstract |
The present invention relates to a process for the preparation of solid microcapsules comprising the following steps: a) the addition, with stirring, of a composition C1, comprising at least one active agent, in a photocrosslinkable polymeric composition C2, whereby an emulsion is obtained ( E1); b) addition with stirring of the emulsion (E1) in a composition C3, the viscosity of the composition C3 being greater than 2000 mPa.s at 25 ° C, whereby a double emulsion (E2) is obtained; c) applying shear to the emulsion (E2), said applied shear rate being less than 1000 s -1, whereby a double emulsion (E3) is obtained; and d) photopolymerizing the composition C2. |