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    Electrophotographic toner composition
    6.
    发明授权
    Electrophotographic toner composition 失效
    电子照相色调剂组成

    公开(公告)号：US5320925A

    公开(公告)日：1994-06-14

    申请号：US879287

    申请日：1992-05-07

    申请人： Takashi Imai ,  Satoshi Inoue ,  Masanori Ichimura ,  Yutaka Sugizaki ,  Susumu Saito ,  Masaru Miura ,  Michio Take ,  Yasuo Yamamoto ,  Koji Fukushima ,  Manabu Serizawa

    发明人： Takashi Imai ,  Satoshi Inoue ,  Masanori Ichimura ,  Yutaka Sugizaki ,  Susumu Saito ,  Masaru Miura ,  Michio Take ,  Yasuo Yamamoto ,  Koji Fukushima ,  Manabu Serizawa

    IPC分类号： G03G9/08 ,  G03G9/097

    CPC分类号： G03G9/0819 ,  G03G9/09716

    摘要： An electrophotographic toner composition comprising (A) toner particles with an average particle diameter of 9 .mu.m or less comprising at least a binder resin and a colorant, and (B) an additive, wherein the additive is a fine metal oxide powder surface coated with at least one agent for imparting hydrophobic property selected from the group consisting of the following formulae (1), (2) and (3):R.sub.1 Si(X).sub.3R.sub.1 R.sub.2 Si(X).sub.2R.sub.1 R.sub.2 R.sub.3 Si(X).sub.1wherein R.sub.1 represents a substituted or unsubstituted alkyl group having a molecular weight of 113 or more, R.sub.2 and R.sub.3 each represents hydrogen, an alkyl group or an allyl group, and X represents chlorine, an alkoxy group or an acetoxy group. The toner composition causes no impaction to a carrier and no adhesion of the toner particles to a photoreceptor, and can form stable, sufficient images for a long time.

    摘要翻译： 一种电子照相调色剂组合物，其包含（A）平均粒径为9μm或更小的调色剂颗粒至少包含粘合剂树脂和着色剂，和（B）添加剂，其中所述添加剂是涂覆有金属氧化物粉末表面的金属表面 至少一种赋予选自下式（1），（2）和（3）的疏水性的试剂：R1Si（X）3 R1R2Si（X）2 R1R2R3Si（X）1其中R1表示取代或 未取代的分子量为113以上的烷基，R2和R3各自表示氢，烷基或烯丙基，X表示氯，烷氧基或乙酰氧基。 调色剂组合物不会对载体造成冲击，并且不会使调色剂颗粒粘附到感光体上，并且可以长时间形成稳定的足够的图像。

    Toner composition for electrophotography
    8.
    发明授权
    Toner composition for electrophotography 失效
    电子照相用调色剂组合物

    公开(公告)号：US5705303A

    公开(公告)日：1998-01-06

    申请号：US616760

    申请日：1996-03-15

    申请人： Masanori Ichimura ,  Michio Take ,  Susumu Saito

    发明人： Masanori Ichimura ,  Michio Take ,  Susumu Saito

    IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G9/097

    CPC分类号： G03G9/09725 ,  G03G9/09716

    摘要： A toner composition for electrophotography comprising toner particles comprising a binder and a colorant and an additive, wherein the additive is crystalline titanium dioxide fine particles which have been treated with a coupling agent and which have a specific surface area of 60 to 100 m.sup.2 /g and a Karl Fischer moisture content of not more than 5% by weight. Compounds represented by formulae (I), (II) or (III) are used as the coupling agent: R.sup.1 Si(X).sub.3 (I) R.sup.1' R.sup.2 Si(X).sub.2 (II) R.sup.1' R.sup.2 R.sup.3 SiX (III) wherein R.sup.1 represents an alkyl group having 9 to 20 carbon atoms; R.sup.1' represents an alkyl group having 1 to 20 carbon atoms; R.sup.2 and R.sup.3 each represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 30 carbon atoms; and X represents a chlorine atom, an alkoxy group having 1 to 10 carbon atoms or an acetoxy-group having 3 to 5 carbon atoms.

    摘要翻译： 一种电子照相用调色剂组合物，其包括含有粘合剂和着色剂和添加剂的调色剂颗粒，其中所述添加剂是已经用偶联剂处理并具有60-100m 2 / g比表面积的结晶二氧化钛细颗粒， 卡尔费休水分含量不超过5％重量。 由式（I），（II）或（III）表示的化合物用作偶联剂：R1Si（X）3（I）R1'R2Si（X）2（II）R1'R2R3SiX（Ⅲ）其中R1表示 具有9至20个碳原子的烷基; R1'表示碳原子数1〜20的烷基， R2和R3各自表示氢原子，碳原子数1〜20的烷基或碳原子数6〜30的芳基。 X表示氯原子，碳原子数1〜10的烷氧基或碳原子数3〜5的乙酰氧基。