Positively chargeable two-component developer, image forming method, and image forming apparatus
    6.
    发明授权
    Positively chargeable two-component developer, image forming method, and image forming apparatus 有权
    可积极充电的双组分显影剂,成像方法和成像设备

    公开(公告)号:US08383308B2

    公开(公告)日:2013-02-26

    申请号:US12260684

    申请日:2008-10-29

    IPC分类号: G03G9/08

    摘要: A positively chargeable two-component developer, including at least a toner and a carrier, wherein the toner contains a binder resin, a colorant, a wax, and a charge control agent, the binder resin contains at least a polyester resin and an addition polymerization resin grafted with a polyolefin, the wax and the addition polymerization resin grafted with a polyolefin are contained at a wax:addition polymerization resin grafted with a polyolefin ratio of from about 40:60 to about 80:20, and the carrier is a magnetic powder having a coating layer containing a methyl-containing silicone resin.

    摘要翻译: 一种可带正​​电荷的双组分显影剂,包括至少一种调色剂和载体,其中调色剂含有粘合剂树脂,着色剂,蜡和电荷控制剂,该粘合剂树脂至少含有一种聚酯树脂和一种加成聚合 用聚烯烃接枝的树脂,蜡和接枝有聚烯烃的加成聚合树脂包含在蜡:接枝聚烯烃比为约40:60至约80:20的加成聚合树脂中,载体是磁性粉末 具有含有含甲基的有机硅树脂的涂层。

    Electrophotographic toner composition
    8.
    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

    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
    9.
    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

    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。