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54 条记录 (耗时 0.177 秒)

    Process for preparing porous polymer particles
    32.
    发明授权
    Process for preparing porous polymer particles 有权
    制备多孔聚合物颗粒的方法

    公开(公告)号：US08466206B1

    公开(公告)日：2013-06-18

    申请号：US13334199

    申请日：2011-12-22

    申请人： Xiqiang Yang ,  James R. Bennett

    发明人： Xiqiang Yang ,  James R. Bennett

    IPC分类号： C08J9/00

    CPC分类号： C08J9/0066 ,  C08J9/28 ,  C08J2201/0482 ,  C08J2325/14 ,  C08J2367/00

    摘要： A process for forming polymer particles with aligned pores and controlled narrow particle size distribution, including: a) forming an oil phase by dissolving a polymeric binder in a solvent; b) dispersing the oil phase into a water phase containing a controlled amount of particulate stabilizer and forming an oil-in-water emulsion of controlled narrow dispersed oil phase droplet size distribution; c) freezing the emulsion to freeze solvent in the oil droplets to form frozen solvent domains within the polymeric binder, and also the water in the continuous water phase; and d) removing the frozen solvent from the polymeric binder and the frozen water in the continuous water phase, thereby forming porous polymer particles of controlled narrow particle size distribution and containing directional aligned non-spherical pore structures. Optionally, the porous particles may contain encapsulated functional ingredients.

    摘要翻译： 一种用于形成具有排列孔和受控的窄粒度分布的聚合物颗粒的方法，包括：a）通过将聚合物粘合剂溶解在溶剂中形成油相; b）将油相分散到含有受控量的颗粒稳定剂的水相中并形成受控窄分散油相液滴尺寸分布的水包油乳液; c）冷冻乳液以在油滴中冷冻溶剂，以在聚合物粘合剂内形成冷冻溶剂结构域，以及连续水相中的水; 以及d）从连续水相中的聚合物粘合剂和冷冻水中除去冷冻的溶剂，从而形成受控窄粒度分布的多孔聚合物颗粒并且包含定向排列的非球形孔结构。 任选地，多孔颗粒可以含有包封的功能性成分。

    Method of preparing toner having controlled morphology
    33.
    发明授权
    Method of preparing toner having controlled morphology 有权
    制备具有受控形态的调色剂的方法

    公开(公告)号：US08137888B2

    公开(公告)日：2012-03-20

    申请号：US12342138

    申请日：2008-12-23

    申请人： Xiqiang Yang

    发明人： Xiqiang Yang

    IPC分类号： G03G9/087

    CPC分类号： G03G9/0804 ,  C08J3/16 ,  G03G9/0827 ,  G03G9/08755

    摘要： A method for the preparation of shaped polymeric particles, and in a particular embodiment shaped electrostatographic toner particles, of controlled morphology including the following steps. A selected solvent or solvent mixture is used to dissolve a polyester polymer material to form an organic phase, wherein the polyester material is formed from at least one diol and at least one multicarboxylic aromatic acid and has a solubility parameter of greater than 9.0 (cal/cm3)1/2, the selected solvent or solvent mixture includes at least a first solvent having a solubility parameter of less than 9.0 (cal/cm3)1/2, and the difference in solubility parameters for the polyester material and the at least first solvent is between 1.0 and 3.0 (cal/cm3)1/2. The organic phase is dispersed in an aqueous phase containing a particulate stabilizer to form a dispersion, which is then homogenized. The organic solvent is evaporated from the dispersion to form shaped polymeric particles, and the resultant product is recovered, washed and dried.

    摘要翻译： 一种用于制备成形聚合物颗粒的方法，并且在特定实施方案中形成具有受控形态的成形的静电调色剂颗粒，包括以下步骤。 使用选择的溶剂或溶剂混合物来溶解聚酯聚合物材料以形成有机相，其中聚酯材料由至少一种二醇和至少一种多元芳族酸形成，并且具有大于9.0的溶解度参数（cal / cm 3）1/2，所选择的溶剂或溶剂混合物至少包括溶解度参数小于9.0（cal / cm 3）1/2的第一溶剂，以及聚酯材料和至少第一溶剂参数的差异 溶剂为1.0-3.0（cal / cm3）1/2。 将有机相分散在含有颗粒稳定剂的水相中以形成分散体，然后将其均化。 从分散体蒸发有机溶剂以形成成型的聚合物颗粒，并将所得产物回收，洗涤和干燥。

    Method of making porous particles
    34.
    发明授权
    Method of making porous particles 有权
    制造多孔颗粒的方法

    公开(公告)号：US07888410B2

    公开(公告)日：2011-02-15

    申请号：US11739121

    申请日：2007-04-24

    申请人： Mridula Nair ,  Xiqiang Yang ,  Tamara K. Jones ,  James G. Popowych

    发明人： Mridula Nair ,  Xiqiang Yang ,  Tamara K. Jones ,  James G. Popowych

    IPC分类号： C08J3/07

    CPC分类号： C08J3/14 ,  C08J9/28 ,  C08J2201/05 ,  G03G9/0806 ,  G03G9/0827

    摘要： The present invention is a method for the preparation of porous particles that includes dissolving a polymer material in a first organic solvent and adding a second organic solvent and nonionic organic polymer particles to form an organic phase. The organic phase is dispersed in an aqueous phase that includes a particulate stabilizer to form a dispersion and the dispersion is homogenized. The first and second organic solvents are evaporated and the product is recovered.

    摘要翻译： 本发明是一种制备多孔颗粒的方法，其包括将聚合物材料溶解在第一有机溶剂中并加入第二有机溶剂和非离子有机聚合物颗粒以形成有机相。 将有机相分散在包含微粒稳定剂的水相中以形成分散体，并将分散体均化。 将第一和第二有机溶剂蒸发并回收产物。

    TONER PARTICLES OF CONTROLLED MORPHOLOGY
    37.
    发明申请
    TONER PARTICLES OF CONTROLLED MORPHOLOGY 失效
    控制形态的调色剂颗粒

    公开(公告)号：US20080145780A1

    公开(公告)日：2008-06-19

    申请号：US11611226

    申请日：2006-12-15

    申请人： Xiqiang Yang ,  Dinesh Tyagi ,  Lloyd A. Lobo ,  Patrick M. Lambert ,  Sandra G. Taft

    发明人： Xiqiang Yang ,  Dinesh Tyagi ,  Lloyd A. Lobo ,  Patrick M. Lambert ,  Sandra G. Taft

    IPC分类号： G03G9/087

    CPC分类号： G03G9/0804 ,  G03G9/0827

    摘要： The present invention is a method for the preparation of electrostatographic toner including the following steps. A polymer material is dissolved in an organic solvent to form an organic phase. The organic phase is dispersed in an aqueous phase that includes a particulate stabilizer and a salt including an anion selected from chloride, oxychloride, sulfate, perchlorate, nitrate, dihydrogen phosphate, lactate, trifluoromethylsulfonate, and trifluromethylhydrate and a cation selected from aluminum, iron (III), tin (II) and zirconium (IV), to form a dispersion. The dispersion is homogenized. The organic solvent is evaporated from the dispersion and the resultant product is recovered, washed and dried. In an alternate method the salt is added directly to the dispersion.

    摘要翻译： 本发明是一种制备静电色调剂的方法，包括以下步骤。 将聚合物材料溶解在有机溶剂中以形成有机相。 有机相分散在水相中，该水相包括颗粒稳定剂和包含选自氯化物，氯氧化物，硫酸盐，高氯酸盐，硝酸盐，磷酸二氢盐，乳酸盐，三氟甲磺酸盐和三氟甲基水合物中的阴离子的盐和选自铝，铁（ III），锡（II）和锆（IV），形成分散体。 将分散体均质化。 从分散体中蒸发有机溶剂，回收所得产物，洗涤并干燥。 在另一种方法中，将盐直接加入到分散体中。

    Imaging element containing a blocked photographically useful compound
    38.
    发明授权
    Imaging element containing a blocked photographically useful compound 失效
    成像元件含有封闭的有用的化合物

    公开(公告)号：US06551768B2

    公开(公告)日：2003-04-22

    申请号：US09865838

    申请日：2001-05-25

    申请人： Wojciech K. Slusarek ,  Xiqiang Yang ,  David H. Levy

    发明人： Wojciech K. Slusarek ,  Xiqiang Yang ,  David H. Levy

    IPC分类号： G03C146

    CPC分类号： G03C1/49845 ,  C08F14/08 ,  G03C7/30511 ,  G03C7/30576 ,  Y10S430/156 ,  Y10S430/16

    摘要： Blocked photographically useful groups decompose thermally via a Lossen rearrangement reaction, including, for example, compounds represented by the following structure: In the above structure, the substituents are as defined in the application. Such compounds have good reactivity and can by used to block photographically useful compounds such as developing agents until thermally activated under preselected conditions. Compounds according to the present invention are especially useful in color photothermographic imaging elements.

    摘要翻译： 封闭的有用的基团通过Lossen重排反应热分解，包括例如由以下结构表示的化合物：在上述结构中，取代基如本申请中所定义。 这些化合物具有良好的反应性，并且可以通过用于阻挡照相用的化合物如显影剂，直到在预选条件下热活化。 根据本发明的化合物在彩色光热敏成像元件中特别有用。

    Imaging element containing a blocked photographically useful compound
    39.
    发明授权
    Imaging element containing a blocked photographically useful compound 失效
    成像元件含有封闭的有用的化合物

    公开(公告)号：US06534226B1

    公开(公告)日：2003-03-18

    申请号：US09718014

    申请日：2000-11-20

    申请人： Zbyslaw R. Owczarczyk ,  David T. Southby ,  Xiqiang Yang

    发明人： Zbyslaw R. Owczarczyk ,  David T. Southby ,  Xiqiang Yang

    IPC分类号： G03C110

    CPC分类号： G03C1/49845 ,  G03C7/30511 ,  Y10S430/158 ,  Y10S430/159 ,  Y10S430/16 ,  Y10S430/165

    摘要： This invention comprises an imaging element comprising an imaging layer having associated therewith a compound of Structure I: In the above Structure I, the substituents are as defined in the application. Such compounds have good reactivity and can by used to block photographically useful compounds such as developing agents until thermally activated under preselected conditions. Compounds according to the present invention are especially useful in color photothermographic imaging elements.

    摘要翻译： 本发明包括成像元件，该成像元件包括具有结构I的化合物的成像层：在上述结构I中，取代基如本申请中所定义。 这些化合物具有良好的反应性，并且可以通过用于阻挡照相用的化合物如显影剂，直到在预选条件下热活化。 根据本发明的化合物在彩色光热敏成像元件中特别有用。