Developer material with poly(p-xylylene) coated carrier
    5.
    发明授权
    Developer material with poly(p-xylylene) coated carrier 失效
    具有聚(对二甲苯)涂层载体的显影剂材料

    公开(公告)号:US3947371A

    公开(公告)日:1976-03-30

    申请号:US380624

    申请日:1973-07-19

    IPC分类号: G03G9/113 G03G9/00

    摘要: An electrostatographic developer mixture comprising finely divided toner particles electrostatically clinging to the surface of larger carrier beads, each of the carrier beads comprising a core particle surrounded by a thin outer layer of a poly(p-xylylene) polymer. Imaging processes of developing electrostatic latent images with the developer mixture are also disclosed.

    摘要翻译: 一种静电显影剂混合物,其包含静电粘附到较大载体珠粒表面的细碎的调色剂颗粒,每个载体珠粒包含被聚(对苯二甲基)聚合物的薄外层包围的核心颗粒。 还公开了用显影剂混合物显影静电潜像的成像方法。

    Method for reducing particle size
    6.
    发明授权
    Method for reducing particle size 失效
    降低粒径的方法

    公开(公告)号:US3936517A

    公开(公告)日:1976-02-03

    申请号:US432715

    申请日:1974-01-11

    申请人: H. Ronald Thomas

    发明人: H. Ronald Thomas

    IPC分类号: G03G9/08 B05B3/00

    CPC分类号: G03G9/0802

    摘要: A method for processing solvent soluble solids to produce micron size particles of the solids is disclosed. A solvent solution of a material such as a polymer is prepared, frozen, comminuted, and mixed under conditions of high shear with a non-solvent liquid which is miscible with the solvent but in which the polymeric material is insoluble. When the temperature of the mixture exceeds the melting point of the solvent, the solvent melts and diffuses into the non-solvent liquid and the polymeric material is caused to precipitate out of solution in the form of finely divided particles having a normal particle size distribution. The freezing and comminution of the solvent solution of polymeric material may be accomplished in a one step process in-situ by slowly adding the polymer solution to the non-solvent liquid under conditions of high shear agitation, the non-solvent liquid being maintained at a temperature substantially below the melting point of the solvent whereby dispersed droplets of the solution are caused to freeze prior to substantial diffusion of the solvent into the non-solvent liquid.

    摘要翻译: 公开了一种处理溶剂可溶性固体以产生微米级固体颗粒的方法。 制备诸如聚合物的材料的溶剂溶液,冷冻,粉碎并在与溶剂混溶但其中聚合物材料不溶的非溶剂液体的高剪切条件下混合。 当混合物的温度超过溶剂的熔点时,溶剂熔化并扩散到非溶剂液体中,使聚合物材料以具有正常粒度分布的细碎颗粒的形式从溶液中沉淀出来。 聚合材料的溶剂溶液的冷冻和粉碎可以通过在高剪切搅拌条件下将聚合物溶液缓慢加入到非溶剂液体中的原位进行一步法,将非溶剂液体保持在 温度基本上低于溶剂的熔点,从而使溶液的分散液滴在溶剂显着扩散到非溶剂液体之前冷冻。