Patent ID: 9044732
Filing Date: 2015-06-02
Classification: A61K,A61Q,B01J,C11D

Abstract:
1. A process for preparing silica microcapsule particles having a core material encapsulated within a shell comprising the steps of (a) preparing a mixture of a sol-gel precursor and an active material; (b) preparing a surfactant solution by dissolving a surfactant in water; (c) adding the sol-gel precursor and active material mixture obtained in step (a) to the surfactant solution obtained in step (b); (d) homogenizing the mixture of sol-gel precursor, active material and surfactant solution obtained in step (c); (e) curing the homogenized mixture to form the microcapsule particles; and (f) modifying the microcapsule particles with a sphere complexation to form a coated microcapsule particle, wherein the sphere complexation is cocoamidopropylamine oxide.