Electrostatographic suspension developer and process for the production
thereof
    8.
    发明授权
    Electrostatographic suspension developer and process for the production thereof 失效
    静电悬浮显影剂及其生产方法

    公开(公告)号:US4521505A

    公开(公告)日:1985-06-04

    申请号:US525625

    申请日:1983-08-23

    IPC分类号: G03G9/12 G03G9/13

    CPC分类号: G03G9/13

    摘要: The suspension developer contains as a toner polymer-sheathed pigment particles in an electrically insulating carrier liquid. The sheath of the pigment particles is formed by precipitation polymerization from various (meth)acrylates, a cross-linker and, optionally, a vinyl or vinylidene monomer. The developer has an outstanding dispersion stability which does not change during use or storage.

    摘要翻译: 悬浮显影剂在电绝缘载体液体中含有调色剂聚合物护套颜料颗粒。 颜料颗粒的鞘通过各种(甲基)丙烯酸酯,交联剂和任选的乙烯基或亚乙烯基单体的沉淀聚合而形成。 开发商具有出色的分散稳定性,在使用或储存期间不会改变。

    Liquid electrostatographic suspension developer comprises pigment coated
with polycyanoacrylate inner shell and additional shell of copolymer
    10.
    发明授权
    Liquid electrostatographic suspension developer comprises pigment coated with polycyanoacrylate inner shell and additional shell of copolymer 失效
    液体静电悬浮显影剂包括用聚氰基丙烯酸酯内壳涂覆的颜料和另外的共聚物壳

    公开(公告)号:US4719164A

    公开(公告)日:1988-01-12

    申请号:US851489

    申请日:1986-04-14

    IPC分类号: G03G9/12 G03G9/13

    CPC分类号: G03G9/131 Y10T428/2998

    摘要: Improved electrostatographic suspension developers contain a pigment coated with polycyanoacrylate.Wherein the polycyanoacrylate comprises an inner shell on a pigment dispersed in an electrically insulating carrier liquid having a volume resistance of at least 10.sup.9 ohm.cm and a dielectric constant below 3 and the pigment has an additional shell of a copolymer ofA. cationic monomers which contain ammonium, phosphonium or sulfonium groups and of which the anions are derived from CH-acid compounds containing at least one C.sub.6 -C.sub.24 hydrocarbon radical andB. radically polymerizable olefinically unsaturated compounds as comonomers.

    摘要翻译: 改进的静电悬浮显影剂含有涂有聚氰基丙烯酸酯的颜料。 其中聚氰基丙烯酸酯包含分散在体积电阻为至少109欧姆·厘米且介电常数低于3的电绝缘载体液体中的颜料上的内壳,并且颜料具有A.阳离子单体的共聚物的另外的外壳 含有铵,鏻或锍基团,其阴离子衍生自含有至少一个C 6 -C 24烃基的CH-酸化合物和作为共聚单体的B.可自由基聚合的烯属不饱和化合物。