METHOD FOR PREPARING CAPSULES COMPRISING AT LEAST ONE VOLATILE COMPOUND AND CAPSULES OBTAINED THEREFROM

The present invention relates to a method for preparing solid microcapsules comprising the following steps: a) preparing a composition C1, which is either a composition C1a, comprising a single hydrophobic solid particle, or a composition C1b comprising a plurality of dispersed hydrophobic solid par...

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Bibliographische Detailangaben
Hauptverfasser:	MOUSNIER, Ludivine, DEMOULIN, Damien, WALTERS, Jamie, OUHENIA, Karima
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MECHANICAL ENGINEERING METALLURGY MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to a method for preparing solid microcapsules comprising the following steps: a) preparing a composition C1, which is either a composition C1a, comprising a single hydrophobic solid particle, or a composition C1b comprising a plurality of dispersed hydrophobic solid particles in a hydrophilic phase, b) adding, under agitation, the composition C1 to a polymeric composition C2 at a temperature Tb, whereby an emulsion (E1) is obtained; c) adding, under agitation, the emulsion (E1) to a composition C3 at a temperature Tc, whereby a double emulsion (E2) is obtained; d) applying shear to the emulsion (E2), whereby a double emulsion (E3) is obtained; and e) polymerising the composition C2, whereby solid microcapsules dispersed in the composition C3 are obtained.