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    • 9. 发明授权
    • Composite particles
    • 复合颗粒
    • US08247027B2
    • 2012-08-21
    • US12586747
    • 2009-09-25
    • Ravi MukkamalaChao-Jen Chung
    • Ravi MukkamalaChao-Jen Chung
    • B05D3/00B05D7/00B30B27/00B41M5/42
    • C08F265/00B41M5/44B41M2205/04B41M2205/38C08F257/02C08F265/04C08F265/06C08F285/00C08F291/00C08L51/003Y10T428/2998C08L2666/02
    • In the present invention a composite particle including: a first polymeric particle having a diameter of from 100 nm to 3.5 microns including a core and a shell: the core including, when dry, at least one void; and the shell polymer having a calculated glass transition temperature(“Tg”) greater than 50° C.; and a second polymeric particle disposed on the surface of the first polymeric particle, the second polymeric particle having a minimum film-forming temperature of greater than 20° C.; wherein the ratio of the diameter of the first polymeric particle to the diameter of the second polymeric particle is from 1 to 50; and wherein the ratio of the weight of the first polymeric particle to the weight of the second polymeric particle is from 0.1 to 40, is provided. In certain embodiments the composite particle further includes pigment particles having a diameter of from 10 nm to 5 microns disposed on the surface of the composite particle, wherein the ratio of the weight of the pigment particles to the weight of the composite particle is from 0.1 to 10. Also provided is a method for forming the composite particles, a thermosensitive recording material including the composite particles and a method for providing the thermosensitive recording material.
    • 在本发明中,复合颗粒包括:直径为100nm至3.5微米的第一聚合物颗粒,包括芯和壳;所述芯在干燥时包括至少一个空隙; 并且所述壳聚合物具有大于50℃的计算的玻璃化转变温度(“Tg”)。 以及设置在所述第一聚合物颗粒的表面上的第二聚合物颗粒,所述第二聚合物颗粒具有大于20℃的最低成膜温度。 其中所述第一聚合物颗粒的直径与所述第二聚合物颗粒的直径之比为1至50; 并且其中提供了第一聚合物颗粒的重量与第二聚合物颗粒的重量的比率为0.1-40。 在某些实施方案中,复合颗粒还包括设置在复合颗粒表面上的直径为10nm至5微米的颜料颗粒,其中颜料颗粒的重量与复合颗粒的重量之比为0.1至 还提供了形成复合颗粒的方法,包括复合颗粒的热敏记录材料和提供热敏记录材料的方法。
    • 10. 发明授权
    • Composite particles
    • 复合颗粒
    • US08476190B2
    • 2013-07-02
    • US13443015
    • 2012-04-10
    • Ravi MukkamalaChao-Jen Chung
    • Ravi MukkamalaChao-Jen Chung
    • B32B5/16B41M3/12B41M5/42
    • C08F265/00B41M5/44B41M2205/04B41M2205/38C08F257/02C08F265/04C08F265/06C08F285/00C08F291/00C08L51/003Y10T428/2998C08L2666/02
    • In the present invention a composite particle including: a first polymeric particle having a diameter of from 100 nm to 3.5 microns including a core and a shell: the core including, when dry, at least one void; and the shell polymer having a calculated glass transition temperature (“Tg”) greater than 50° C.; and a second polymeric particle disposed on the surface of the first polymeric particle, the second polymeric particle having a minimum film-forming temperature of greater than 20° C.; wherein the ratio of the diameter of the first polymeric particle to the diameter of the second polymeric particle is from 1 to 50; and wherein the ratio of the weight of the first polymeric particle to the weight of the second polymeric particle is from 0.1 to 40, is provided.
    • 在本发明中,复合颗粒包括:直径为100nm至3.5微米的第一聚合物颗粒,包括芯和壳;所述芯在干燥时包括至少一个空隙; 并且所述壳聚合物具有大于50℃的计算的玻璃化转变温度(“Tg”)。 以及设置在所述第一聚合物颗粒的表面上的第二聚合物颗粒,所述第二聚合物颗粒具有大于20℃的最低成膜温度。 其中所述第一聚合物颗粒的直径与所述第二聚合物颗粒的直径之比为1至50; 并且其中提供了第一聚合物颗粒的重量与第二聚合物颗粒的重量的比率为0.1-40。