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    • 4. 发明申请
    • SURFACE DECORATED PARTICLES
    • 表面装饰颗粒
    • WO2012015891A1
    • 2012-02-02
    • PCT/US2011/045494
    • 2011-07-27
    • EASTMAN KODAK COMPANYNAIR, MridulaPUTNAM, David, D.EIFF, Shari, LeeSREEKUMAR, Cumar
    • NAIR, MridulaPUTNAM, David, D.EIFF, Shari, LeeSREEKUMAR, Cumar
    • G03G9/08G03G9/093G03G9/097
    • G03G9/0804G03G9/0819G03G9/0825G03G9/09392G03G9/09725
    • A surface decorated particle including a core particle phase having an outer surface; and fine inorganic particles on the outer surface of the core particle phase; wherein the fine inorganic particles have hydrophobic groups covalently bonded primarily on portions of surfaces of the fine inorganic particles positioned away from the core particle phase. Such surface decorated particles are obtainable by a method including stabilizing dispersed hydrophobic phase particles in an aqueous phase with fine inorganic particles having a relatively hydrophilic surface; and treating the stabilized dispersed hydrophobic phase particles with a hydrophobic group containing reactant to form hydrophobic groups covalently bonded to surfaces of the fine inorganic particles. In a particular embodiment, such surface decorated particles are obtainable by a limited coalescence process for preparing binder polymer particles using inorganic stabilizer particles that provide a plurality of surface bonding sites and reacting such sites with a plurality of alkoxy silane moieties that contains pendant hydrophobic groups.
    • 包括具有外表面的核心颗粒相的表面装饰颗粒; 和核心颗粒相外表面上的无机细颗粒; 其中,所述无机微粒具有疏水性基团,所述疏水性基团主要共价键合在位于远离所述核心粒子相的所述无机微粒表面的部分。 这种表面装饰颗粒可以通过包括用具有相对亲水表面的细无机颗粒在水相中稳定分散的疏水相颗粒的方法获得; 并用含疏水基团的反应物处理稳定的分散的疏水相颗粒以形成共价键合到无机微粒表面的疏水基团。 在一个具体实施方案中,这种表面装饰颗粒可以通过有限的聚结方法获得,所述聚结方法使用提供多个表面结合位点的无机稳定剂颗粒来制备粘合剂聚合物颗粒,并使该位点与包含侧链疏水基团的多个烷氧基硅烷部分反应。