Patent ID: 11033872

Abstract:
The present invention relates to a capsule preparation method for preparing solid microcapsules, comprising the following steps:a) addition, under agitation, a composition C1, comprising at least one active ingredient, to a polymeric composition C2, the compositions C1 and C2 being mutually immiscible, whereby an emulsion (E1) is obtained comprising droplets of the composition C1 dispersed in the composition C2;b) addition, under agitation, the emulsion (E1) to a composition C3, the compositions C2 and C3 being mutually immiscible, whereby a double emulsion (E2) is obtained comprising droplets dispersed in the composition C3;c) applying shear to the emulsion (E2), whereby a double emulsion (E3) is obtained comprising size controlled droplets dispersed in the composition C3; andd) polymerising the composition C2, whereby solid microcapsules dispersed in the composition C3 are obtained.