| 摘要 |
PCT No. PCT/ES94/00085 Sec. 371 Date Jul. 20, 1996 Sec. 102(e) Date Jul. 20, 1996 PCT Filed Sep. 30, 1994 PCT Pub. No. WO95/31975 PCT Pub. Date Nov. 30, 1995The process comprises: (1) preparing a fine dispersion of droplets or particles which contain, or are formed, of a chemical or biologically active substance in a phase comprised of a solvent and a non solvent of the polymer forming the coating and, optionally, a surfactant or suspending agent; (2) preparing a phase which contains the coat-forming polymer dissolved in a miscible solvent in any relationship with the prior dispersion, (3) mixing both phases continuously while maintaining constant the relationship between the phases and the mixture volume, and simultaneously spraying the resultant mixture in an evaporation system with temperature and vacuum conditions which provide for the instantaneous evaporation of the solvent from the polymer, causing the deposition of the polymer around the particles or droplets. Applications to pharmacy, medicine, cosmetics, veterinary, chemical industry, agriculture are discussed.
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