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    • 1. 发明授权
    • Process for the preparaton of dispersible colloidal systems of a
substance in the form of nanocapsules
    • 制备纳米胶囊形式的物质的可分散胶体体系的方法
    • US5049322A
    • 1991-09-17
    • US140246
    • 1987-12-31
    • Jean-Philippe DevissaguetHatem FessiFrancis Puisieux
    • Jean-Philippe DevissaguetHatem FessiFrancis Puisieux
    • A61K9/50A61K9/10A61K9/51B01J13/00B01J13/12
    • A61K9/5138A61K9/5153A61K9/5192Y10S514/963Y10T428/2984
    • The process according to the invention comprises:(1) the preparation of a liquid phase consisting essentially of a solution of a substance A in a solvent or in a mixture of solvents, and containing the substance B in solution or as a dispersion,(2) the preparation of a second liquid phase consisting essentially of a non-solvent or a mixture of non-solvents for the substances A and B, and supplemented with one or more surfactants, the solvent or mixture of solvents of the first phase being miscible in all proportions with the non-solvent or mixture of non-solvents of the second phase,(3) the addition of the first phase to the second phase with moderate agitation so as to produce a colloidal suspension of nanocapsules, the wall of which is constituted by the substance A and the core by the substance B,(4) if desired, the removal of all or part of the solvent or the mixture of solvents and of the non-solvent or the mixture of non-solvents so as to produce a colloidal suspension of nanocapsules of the desired concentration or to produce a powder of nanocapsules following the addition of stabilizing substances.
    • 根据本发明的方法包括:(1)制备基本上由物质A在溶剂或溶剂混合物中的溶液组成并在溶液或分散体中含有物质B的液相(2 )制备基本上由物质A和B的非溶剂或非溶剂混合物组成的第二液相,并补充有一种或多种表面活性剂,第一相的溶剂或溶剂混合物可溶于 所有比例与第二相的非溶剂或非溶剂混合物,(3)在适度搅拌下将第一相加入到第二相中,以产生其壁构成的纳米胶囊的胶态悬浮液 通过物质A和物质B的核心,(4)如果需要,去除全部或部分溶剂或溶剂混合物,非溶剂或非溶剂混合物,以产生 纳米胶体悬浮液 所需浓度的眼睛或在加入稳定物质后产生纳米胶囊的粉末。