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    Resin-filled ferrite carrier for electrophotographic developer, production method thereof and electrophotographic developer using the ferrite carrier
    4.
    发明公开
    Resin-filled ferrite carrier for electrophotographic developer, production method thereof and electrophotographic developer using the ferrite carrier 审中-公开
    使用铁氧体载体树脂填充型铁氧体载体的电子照相显影剂，其制造方法，以及电子照相显影剂

    公开(公告)号：EP1975732A2

    公开(公告)日：2008-10-01

    申请号：EP08006008.0

    申请日：2008-03-28

    申请人： Powdertech Co., Ltd.

    发明人： Kobayashi, Hiromichi ,  Sugiura, Takao

    IPC分类号： G03G9/113

    CPC分类号： G03G9/1136 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1137

    摘要： Employed are a resin-filled ferrite carrier for an electrophotographic developer filled with a resin in voids of a porous ferrite core material, wherein the resin filled in the voids is a silicone resin which has a softening point of 40°C or above and is cured at or above such softening point, and the filled amount is 7 to 30 parts by weight based on 100 parts by weight of the core material, a method for producing thereof band an electrophotographic developer using this ferrite carrier.

    摘要翻译： 采用用于在填充有在多孔铁氧体芯材的空隙的树脂电子照相显影剂，worin填充在空隙中的树脂的树脂填充型铁氧体载体是具有40℃的软化点以上并进行固化的有机硅树脂 在等于或高于搜索的软化点，并且填充量是基于100重量份的芯材的7〜30重量份，其制造方法结合使用这种铁氧体载体，以电子照相显影剂。

    Carrier for use in electrophotographic developers, developer prepared by using the carrier and method for forming image
    6.
    发明公开
    Carrier for use in electrophotographic developers, developer prepared by using the carrier and method for forming image 审中-公开
    Entwickler，Entwickler und Bildherstellungsverfahren的Trägerfürelektrophotographische

    公开(公告)号：EP1484648A2

    公开(公告)日：2004-12-08

    申请号：EP04253342.2

    申请日：2004-06-04

    申请人： Mitsui Mining & Smelting Co., Ltd ,  Powdertech Co., Ltd.

    发明人： Kamikoriyama, Yoichi c/o Mitsui Mining & Smelting ,  Suzuoka, Kenji c/o Mitsui Mining & Smelting Co Ltd ,  Nakashima, Takashi c/o Mitsui Mining & Smelting ,  Kinoshita, Kazuya c/o Mitsui Mining & Smelting ,  Sato, Yuji c/o Powdertech Co., Ltd. ,  Kobayashi, Hiromichi c/o Powdertech Co., Ltd. ,  Gondo, Takeshi c/o Powdertech Co., Ltd. ,  Hikichi, Takashi c/o Powdertech Co., Ltd.

    IPC分类号： G03G9/10 ,  G03G9/113

    CPC分类号： G03G9/107 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1135 ,  G03G9/1136 ,  G03G9/1137 ,  G03G9/1139

    摘要： Provided are a carrier for electrophotography developers prepared with generating a slight amount of byproducts such as water, alcohol, etc, which carrier is free from release of a magnetic powder, has excellent mechanical strength and durability, and good environmental stability, and further can restrain occurrence of toner spent condition and has favorable fluidity and excellent capability of imparting charging to a toner, a two-component developer comprising the carrier and a method for forming an image using the developer.
    The carrier for electrophotography developers of the invention comprises a magnetic powder dispersed binder resin, the binder resin material comprises (A) a polysiloxane compound having an epoxy group as a functional group and (B) a polysiloxane compound having a group capable of ring-opening addition reaction with the epoxy group of the polysiloxane compound (A), and the binder resin is a silicone resin prepared by curing with ring-opening addition reaction of the epoxy resin.
    The developer of the invention comprises the carrier for electrophotography developers and the toner particle.
    The method for forming an image according to the invention comprises developing a static latent image by the developer with an alternating electric field.

    摘要翻译： 提供了一种电子照相显影剂的载体，其生成少量副产物如水，醇等，该载体不含磁性粉末的释放，具有优异的机械强度和耐久性，以及良好的环境稳定性，并且还可以抑制 调色剂消耗状况的发生，并且具有良好的流动性和对调色剂充电的优异能力，包含载体的双组分显影剂和使用显影剂形成图像的方法。 本发明的电子照相显影剂载体包括磁粉分散的粘合剂树脂，粘合剂树脂材料包含（A）具有环氧基作为官能团的聚硅氧烷化合物和（B）具有基团的聚硅氧烷化合物 与聚硅氧烷化合物（A）的环氧基开环加成反应，粘合剂树脂是通过环氧树脂的开环加成反应固化而制备的有机硅树脂。 本发明的显影剂包括用于电子照相显影剂的载体和调色剂颗粒。 根据本发明的形成图像的方法包括用交变电场显影显影剂的静电潜像。

    Magnetic carrier for electrophotography
    8.
    发明公开
    Magnetic carrier for electrophotography 失效
    MagnetischerTrägerfürElektrophotographie

    公开(公告)号：EP0708379A2

    公开(公告)日：1996-04-24

    申请号：EP95307044.8

    申请日：1995-10-04

    申请人： TODA KOGYO CORP.

    发明人： Hakata, Toshiyuki ,  Kakihara, Hiroomi ,  Fukugauchi, Masaaki

    IPC分类号： G03G9/10 ,  G03G9/107 ,  G03G9/113

    CPC分类号： G03G9/10 ,  G03G9/107 ,  G03G9/1133 ,  G03G9/1137 ,  G03G9/1139

    摘要： Spherical composite particles for use as a magnetic carrier for electrophotography have a number average particle diameter of from 1 to 1000 µm and comprise ferromagnetic iron compound particles, non-magnetic metal oxide particles and a phenol-based resin as a binder resin, the total amount of said ferromagnetic iron compound particles and said non-magnetic metal oxide particles being from 80 to 99 wt% and the ratio of the number-average particle diameter of said non-magnetic metal oxide particles and the number-average particle diameter of said ferromagnetic iron compound particles being more than 1.0:1.

    摘要翻译： 用作电子照相用磁性载体的球形复合颗粒的数均粒径为1-1000μm，包含铁磁性铁化合物颗粒，非磁性金属氧化物颗粒和作为粘合剂树脂的酚类树脂，总计 所述铁磁性铁化合物颗粒和所述非磁性金属氧化物颗粒的量为80至99重量％，并且所述非磁性金属氧化物颗粒的数均粒径与所述铁磁性颗粒的数均粒径之比 铁化合物颗粒大于1.0：1。