Patent ID: 8435560
Filing Date: 2013-05-07
Classification: A45C,A45F,A61K,Y10S

Abstract:
1. A process for preparing a suspension of polynuclear microcapsules, said polynuclear microcapsules comprising an outer-capsule wherein the outer-capsule comprises an outer-shell and a plurality of inner-capsules, and wherein each of the inner-capsules comprises an inner-shell and an aqueous phase core, and wherein the outer-shell and the inner-shell further comprise a silica or an organofunctional silica, comprising the following steps: I) mixing x is an integer of 1-1000, y is an integer of 1-500, z is an integer of 1-500, R2 represents the group —(CH a is an integer of 3-6; b is an integer of 1-40; c is an integer of 0-40; and R3 is hydrogen, a methyl group, or an acyl group with water to form an emulsion having a continuous phase and a disperse phase wherein the alkoxysilane is in the continuous phase; II) admixing to the emulsion having the alkoxysilane in the continuous phase to form a multiple phase emulsion having multiple oil/water interfaces; and III) polymerizing the alkoxysilane at the oil/water interfaces of the multiple phase emulsion to form the suspension of polynuclear microcapsules.