METHOD FOR PREPARING SMOOTH-SURFACE SPHERICAL MICROPARTICLES COMPLETELY OR PARTIALLY MADE OF AT LEAST ONE WATER-INSOLUBLE LINEAR POLYSACCHARIDE AND MICROPARTICLES PRODUCED ACCORDING TO THIS METHOD

摘要

The present invention relates to a method for preparing smooth-surface spherical microparticles which are completely or partially made of at least one water-insoluble linear polysaccharide. This method involves dissolving the at least one water-insoluble linear polysaccharide in a solvent or a mixture of solvents, introducing the solution into a precipitation agent or a mixture of precipitation agents, optionally cooling the mixture thus obtained, and separating the microparticles thus formed. The precipitation agent used consists of at least one water-soluble cellulose derivative. This invention also relates to microparticles obtained according to this method.