Process for the manufacture of particles of semicrystalline polymers of controlled particle size, products obtained and application of these products

摘要

Process for the manufacture of particles of semicrystalline polymers, characterised in that it consists: - first of all, in dissolving this polymer in a solvent, with heating and with stirring until a solution in a homogeneous liquid phase is obtained; - then, in cooling in order to recrystallise the polymer without the appearance of a liquid-liquid phase separation; - and, finally, in removing the solvent. Envisaged application: ion exchange resins, particles for fluidisation, aqueous dispersions, film resins supporting catalysts or chemical reactants.