Method of preparing a multiphase composition
    7.
    发明授权
    Method of preparing a multiphase composition 失效
    制备多相组合物的方法

    公开(公告)号:US5304334A

    公开(公告)日:1994-04-19

    申请号:US874933

    申请日:1992-04-28

    摘要: The instant invention relates to methods of preparing and stabilizing complex multiphase compositions that include distinct phases of water, gel, liquid crystal or oil and perfluoropolyether dispersed in a continuous phase of a silicone fluid. In particular, the present invention relates to a method of preparing a stable multiphase composition comprising the steps of mixing an aqueous solution of a water-soluble polymeric emulsifier, a silicone-based emulsifier and an oleophobic, hydrophobic silicone fluid in amounts effective to form a stable water-in-silicone emulsion; mixing the water-in-silicone emulsion with a hydrophilic gel comprising a homogeneous mixture of water and a sufficient amount of at least one viscosity-enhancing, water-soluble polymer, the emulsion and gel being combined in amounts effective to form a dispersion in which the gel is dispersed in the emulsion; and adding to the dispersion an oil or a thermotropic liquid crystal and a perfluoropolyether in amounts effective to form a stable, multiphase composition comprising a continuous phase of silicone fluid and independent, polydisperse phases of water, gel, oil or liquid crystal and perfluoropolyether.

    摘要翻译: 本发明涉及制备和稳定复合多相组合物的方法,所述组合物包括分散在有机硅流体的连续相中的水,凝胶,液晶或油的不同相和全氟聚醚。 特别地,本发明涉及一种制备稳定多相组合物的方法,包括以下步骤:将水溶性聚合乳化剂,硅氧烷基乳化剂和疏油疏水硅氧烷流体的水溶液混合,其量有效地形成 稳定的硅氧烷硅乳液; 将水包硅乳液与亲水性凝胶混合,其包含水和足够量的至少一种增稠粘度的水溶性聚合物的均匀混合物,所述乳液和凝胶以有效形成分散体的量组合,其中 凝胶分散在乳液中; 并且将有效形成稳定的多相组合物的油或热致液晶和全氟聚醚加入到该分散体中,所述多相组合物包含硅油流体的连续相和水,凝胶,油或液晶和全氟聚醚的独立的多分散相。