Patent ID: 8637104
Filing Date: 2014-01-28
Classification: A61K,B01J

Abstract:
1. A process of encapsulating an active component in a microcapsule, the process comprising: (a) combining (b) precipitating the hydrophobic polymer and release trigger component onto the dispersed active component to produce microcapsules in which the active component is enveloped by a coating comprising at least 20 wt. % of the hydrophobic polymer, the microcapsules having a volume weighted average diameter of between 10 nm and 25 μm, (c) collecting the microcapsules, wherein the solvent is soluble in or miscible with the antisolvent, wherein the hydrophobic polymer and said active component are insoluble in the antisolvent, wherein the hydrophobic polymer has a water solubility at 20° C. of less than 0.1 mg/ml, and wherein the active component is selected from the group consisting of minerals, vitamins, carotenoids, polyunsaturated oils, pharmaceutically active components, flavourings, proteins, peptides, amino acids, micro-organisms and combinations thereof; and the hydrophobic polymer is selected from the group consisting of cellulosic ethers, cellulosic ethers, zein, shellac, gluten, polylactide, hydrophobic starch derivatives, polyvinyl acetate polymers, polymers or copolymers derived from an acrylic acid ester and/or a methacrylic acid ester and combinations thereof.