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    • 3. 发明申请
    • METHOD OF MAKING INORGANIC POROUS PARTICLES
    • 制造无机多孔颗粒的方法
    • US20120282316A1
    • 2012-11-08
    • US13101185
    • 2011-05-05
    • Mary Christine BrickJoseph Salvatore SeditaJoan Kay WilliamsMridula Nair
    • Mary Christine BrickJoseph Salvatore SeditaJoan Kay WilliamsMridula Nair
    • A01N25/08B01J31/02A01P1/00B01J37/06C01B13/14A61K9/14B01J37/02
    • C01B13/328A61K47/02C01B33/18C01F7/36C01G1/02C01G23/053C01G25/02C01P2004/61C01P2006/16C01P2006/17
    • Sol-gel inorganic porous particles are composed of an inorganic compound that provides an inorganic solid phase including an external particle surface. They also have a first set of pores wherein the pores have an average diameter of less than 100 nm and a second set of pores wherein the pores have an average diameter of at least 100 nm, which second set of pores contains stabilizing organic microgel particles. These inorganic porous particles are prepared using a first oil phase comprising a first water-immiscible aprotic solvent having a dielectric constant of less than 10 and having dissolved therein organic microgel particles. An aqueous phase comprising a polar solvent, an inorganic gel precursor, a catalyst, and a dispersing surfactant is neutralized to initiate condensation of the inorganic gel precursor. An oil-in-water emulsion is then formed with the organic microgel particles in the first oil phase, which is dispersed as first oil phase droplets in the aqueous phase. A second oil phase is combined with the oil-in-water emulsion with the second oil phase to form an oil-in-water-in-oil emulsion comprising the first oil phase droplets in the aqueous phase.
    • 溶胶凝胶无机多孔颗粒由提供包含外部颗粒表面的无机固相的无机化合物组成。 它们还具有第一组孔,其中孔具有小于100nm的平均直径和第二组孔,其中孔具有至少100nm的平均直径,该第二组孔含有稳定的有机微粒凝胶颗粒。 这些无机多孔颗粒使用第一油相制备,所述第一油相包含介电常数小于10并且溶解有机微粒凝胶颗粒的第一不溶于水的非质子传递溶剂。 包含极性溶剂,无机凝胶前体,催化剂和分散表面活性剂的水相被中和以引发无机凝胶前体的缩合。 然后与第一油相中的有机微粒凝胶颗粒形成水包油乳液,其作为第一油相液滴分散在水相中。 将第二油相与水包油乳液与第二油相组合以形成包含在水相中的第一油相液滴的油包水包油乳液。
    • 5. 发明授权
    • Method of making inorganic porous particles
    • 无机多孔颗粒的制备方法
    • US08394396B2
    • 2013-03-12
    • US13101185
    • 2011-05-05
    • Mary Christine BrickJoseph Salvatore SeditaJoan Kay WilliamsMridula Nair
    • Mary Christine BrickJoseph Salvatore SeditaJoan Kay WilliamsMridula Nair
    • A01N25/26
    • C01B13/328A61K47/02C01B33/18C01F7/36C01G1/02C01G23/053C01G25/02C01P2004/61C01P2006/16C01P2006/17
    • Sol-gel inorganic porous particles are composed of an inorganic compound that provides an inorganic solid phase including an external particle surface. They also have a first set of pores wherein the pores have an average diameter of less than 100 nm and a second set of pores wherein the pores have an average diameter of at least 100 nm, which second set of pores contains stabilizing organic microgel particles. These inorganic porous particles are prepared using a first oil phase comprising a first water-immiscible aprotic solvent having a dielectric constant of less than 10 and having dissolved therein organic microgel particles. An aqueous phase comprising a polar solvent, an inorganic gel precursor, a catalyst, and a dispersing surfactant is neutralized to initiate condensation of the inorganic gel precursor. An oil-in-water emulsion is then formed with the organic microgel particles in the first oil phase, which is dispersed as first oil phase droplets in the aqueous phase. A second oil phase is combined with the oil-in-water emulsion with the second oil phase to form an oil-in-water-in-oil emulsion comprising the first oil phase droplets in the aqueous phase.
    • 溶胶凝胶无机多孔颗粒由提供包含外部颗粒表面的无机固相的无机化合物组成。 它们还具有第一组孔,其中孔具有小于100nm的平均直径和第二组孔,其中孔具有至少100nm的平均直径,该第二组孔含有稳定的有机微粒凝胶颗粒。 这些无机多孔颗粒使用第一油相制备,所述第一油相包含介电常数小于10并且溶解有机微粒凝胶颗粒的第一不溶于水的非质子传递溶剂。 包含极性溶剂,无机凝胶前体,催化剂和分散表面活性剂的水相被中和以引发无机凝胶前体的缩合。 然后与第一油相中的有机微粒凝胶颗粒形成水包油乳液,其作为第一油相液滴分散在水相中。 将第二油相与水包油乳液与第二油相组合以形成包含在水相中的第一油相液滴的油包水包油乳液。