利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.015 秒)

    Black magnetic iron oxide particles and magnetic toner
    6.
    发明公开
    Black magnetic iron oxide particles and magnetic toner 有权
    Schwarze磁铁Eisenoxidteilchen und magnetischer碳粉

    公开(公告)号：EP1225600A2

    公开(公告)日：2002-07-24

    申请号：EP02250422.9

    申请日：2002-01-22

    申请人： Toda Kogyo Corporation

    发明人： Uchida, Naoki ,  Kouzawa, Minoru ,  Misawa, Hiromitsu ,  Aoki, Koso ,  Miura, Suehiko

    IPC分类号： H01F1/11 ,  G03G9/083

    CPC分类号： G03G9/0838 ,  G03G9/0831 ,  G03G9/0832 ,  G03G9/0833 ,  G03G9/0839 ,  H01F1/112 ,  Y10T428/2991

    摘要： Black magnetic iron oxide particles having a three-phase structure comprising:

    a core portion containing at least one metal element other than Fe selected from Mn, Zn, Cu, Ni, Cr, Cd, Sn, Mg, Ti, Ca and Al in an amount of from 0.1 to 10% by weight based on whole Fe contained in the particles;
    a surface coat portion containing at least one metal element other than Fe selected from Mn, Zn, Cu, Ni, Cr, Cd, Sn, Mg, Ti, Ca arid Al in an amount of from 0.1 to 10% by weight based on whole Fe contained in the particles; and
    an intermediate layer disposed between the core portion and the surface coat portion, containing substantially none of the metal elements other than Fe,
    and having an average particle diameter of from 0.05 to 1.0 µm.

    摘要翻译： 具有三相结构的黑色磁性氧化铁颗粒包括：含有选自Mn，Zn，Cu，Ni，Cr，Cd，Sn，Mg，Ti，Ca和Al中的至少一种不同于Fe的金属元素的芯部， 相对于颗粒中所含的全部Fe为0.1〜10重量％ 含有选自Mn，Zn，Cu，Ni，Cr，Cd，Sn，Mg，Ti，Ca和Al中的除了Fe以外的至少一种金属元素的表面涂层部分，其总量为0.1至10重量％ 包含在颗粒中的Fe; 以及设置在所述芯部和所述表面涂层部之间的中间层，其基本上不含Fe以外的金属元素，平均粒径为0.05〜1.0μm。

    Magnetic iron oxide particles and magnetic toner using the same
    9.
    发明公开
    Magnetic iron oxide particles and magnetic toner using the same 审中-公开
    Magnetische Eisenoxidteilchen und diese benutzender magnetischer墨粉

    公开(公告)号：EP1585147A2

    公开(公告)日：2005-10-12

    申请号：EP05252201.8

    申请日：2005-04-07

    申请人： TODA KOGYO CORPORATION

    发明人： Akai, Hiroshi ,  Aoki, Koso ,  Misawa, Hiromitsu ,  Uchida, Naoki ,  Iwai, Ryo

    IPC分类号： H01F1/34 ,  C01G49/02 ,  G03G9/083

    CPC分类号： H01F1/344 ,  Y10T428/2982

    摘要： There are provided magnetic iron oxide particles having an average particle diameter (Dp 50 ) of primary particles of 0.05 to 0.3 µm, an average particle diameter (Da 50 ) of secondary particles of 0.055 to 0.9 µm, and a ratio of the average particle diameter (Da 50 ) of the secondary particles to the average particle diameter (Dp 50 ) of the secondary particles (Da 50 / Dp 50 ) of 1.1 to 3.0, as well as a magnetic toner containing the magnetic iron oxide particles. These magnetic iron oxide particles are in the form of small agglomerated particles and exhibit an excellent dispersibility. A magnetic toner incorporating the magnetic iron oxide particles exhibits excellent electrification stability.

    摘要翻译： 提供一次粒子的平均粒径（Dp50）为0.05〜0.3μm，二次粒子的平均粒径（Da50）为0.055〜0.9μm的磁性氧化铁粒子，平均粒径 二次粒子的平均粒径（Dp50）（Da50 / Dp50）为1.1〜3.0的（Da50）以及含有磁性氧化铁粒子的磁性调色剂。 这些磁性氧化铁颗粒呈小团聚颗粒的形式并表现出优异的分散性。 掺入磁性氧化铁颗粒的磁性调色剂表现出优异的起电稳定性。