Process for obtaining raw materials in granular form, raw material in granular form and their use in cosmetics, haircare, veterinary or pharmaceutical fields

摘要

Raw materials (I) in the form of anhydrous, microporous grains, of a calibrated size, a regular shape and surface are prepared as follows: (a) obtaining (I) as a dispersion or soln. in one or more solvents which are capable of being freeze-dried and are of appropriate viscosity for the mechanical formation of calibrated drops; (b) mechanically forming calibrated drops; (c) freezing the drops , and (d) freeze-drying to give granular (I).