Patent ID: 8231884
Filing Date: 2012-07-31
Classification: A61K,A61Q

Abstract:
1. A process for synthesizing oblong particles in the form of a mass constituted by a plurality of fibers of an organogelator selected from the group consisting of 1,3:2,4-di-O-benzylidene-D-sorbitol, 1,3:2,4:5,6-tri-O-benzylidene-D-sorbitol, 2,4-mono-O-benzylidene-D-sorbitol, 1,3:2,4-di-O-benzylidene-D-xylitol, and 2,4-mono-O-benzylidene-D-xylitol in xerogel form, in which the fibers are oriented according to the same main direction defining the length of the particle, which is between 2 and 100 μm, and comprise an external envelope, including a polymer or a surfactant, enveloping said fiber mass, wherein said particles have a total light transmittance greater than 0.80, with a diffuse transmittance greater than the specular transmittance, said process comprising the following series of steps: a) dissolving the organogelator in a volatile organic solvent non-miscible with water S1; b) pouring the mixture obtained from step a), under mechanical stirring, into an aqueous solution, which includes a surfactant or a polymer; and c) recovering and drying the particles obtained from step b).