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    Negatively chargeable toner for developing electrostatic latent images
    3.
    发明授权
    Negatively chargeable toner for developing electrostatic latent images 有权
    用于显影静电潜像的负电荷调色剂

    公开(公告)号：US6025107A

    公开(公告)日：2000-02-15

    申请号：US168277

    申请日：1998-10-08

    申请人： Yoshitaka Sekiguchi ,  Tetsuo Sano ,  Kenichi Kido

    发明人： Yoshitaka Sekiguchi ,  Tetsuo Sano ,  Kenichi Kido

    IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G9/09 ,  G03G9/097

    CPC分类号： G03G9/0975 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/08795

    摘要： The negatively chargeable toner of the present invention comprises negatively chargeable toner particles including a boron compound, and exterior additive particles adhered to the surface of the toner particle and comprising hydrophobic silica particles and metal titanate particles, wherein the additive weight ratio of said hydrophobic silica particles and metal titanate particles is within a range of 5:1 to 1:1.2, and a total specific surface area S of the exterior additive particles is 40 to 120.

    摘要翻译： 本发明的带负电荷的调色剂包括含有硼化合物的负带电性调色剂颗粒和附着在调色剂颗粒表面上并包含疏水二氧化硅颗粒和金属钛酸盐颗粒的外部添加剂颗粒，其中所述疏水二氧化硅颗粒的添加重量比 金属钛酸盐粒子在5:1〜1:1.2的范围内，外部添加剂粒子的总比表面积S为40〜120。

    Negatively chargeable toner for developing electrostatic latent image
    4.
    发明授权
    Negatively chargeable toner for developing electrostatic latent image 失效
    用于显影静电潜像的负电荷调色剂

    公开(公告)号：US5804350A

    公开(公告)日：1998-09-08

    申请号：US947907

    申请日：1997-10-09

    申请人： Yoshitaka Sekiguchi ,  Tetsuo Sano ,  Kenichi Kido ,  Hiroyuki Fukuda

    发明人： Yoshitaka Sekiguchi ,  Tetsuo Sano ,  Kenichi Kido ,  Hiroyuki Fukuda

    IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G9/097

    CPC分类号： G03G9/09775 ,  G03G9/0821 ,  G03G9/09783

    摘要： The present invention relates to a negatively chargeable toner comprising at least a binder resin, carbon black, and charge controller, wherein said charge controller is a colorless or white in color boron compound, and wherein a melt viscosity curve of said negatively chargeable toner has an inflection point of a viscosity slope, an inflection point temperature (T.sub.2) existing within a temperature range of T.sub.1 +20.degree. C. to T.sub.1 +40.degree. C. relative to a flow start temperature (T.sub.1), a first absolute value (.DELTA..eta..sub.1) existing within a range of 4.0.times.10.sup.-2 to 6.0.times.10.sup.-2, said first absolute value. (.DELTA..eta..sub.1) being a mean viscosity slope within a temperature range below the inflection point temperature (T.sub.2), a second absolute value (.DELTA..eta..sub.2) existing less than 2.0.times.10.sup.-2, said second absolute value (.DELTA..eta..sub.2) being a mean viscosity slope within a temperature range higher than said inflection point temperature (T.sub.2) is less than 2.0.times.10.sup.-2, and a temperature difference between said inflection point temperature (T.sub.2) and a flow stop temperature (T.sub.3) being 5.degree. C. or more.

    摘要翻译： 本发明涉及至少包含粘合剂树脂，炭黑和充电控制器的带负电荷的调色剂，其中所述充电控制器是无色或白色的硼化合物，并且其中所述带负电荷的调色剂的熔体粘度曲线具有 粘度斜率的拐点，相对于流动开始温度（T1）存在于T1 + 20℃至T1 + 40℃的温度范围内的拐点温度（T2），第一绝对值（DELTA eta 1）存在于4.0×10 -2至6.0×10 -2的范围内，即所述第一绝对值。 （DELTA eta 1）是低于拐点温度（T2）的温度范围内的平均粘度斜率，小于2.0×10 -2的第二绝对值（DELTA eta 2），所述第二绝对值（DELTA eta 2）为 在高于所述拐点温度（T2）的温度范围内的平均粘度斜率小于2.0×10 -2，所述拐点温度（T2）和流动停止温度（T3）之间的温度差为5℃。 或者更多。

    Negatively chargeable toner for developing electrostatic latent image
    5.
    发明授权
    Negatively chargeable toner for developing electrostatic latent image 失效
    用于显影静电潜像的负电荷调色剂

    公开(公告)号：US5776647A

    公开(公告)日：1998-07-07

    申请号：US948525

    申请日：1997-10-09

    申请人： Kenichi Kido ,  Tetsuo Sano ,  Yoshitaka Sekiguchi ,  Hiroyuki Fukuda

    发明人： Kenichi Kido ,  Tetsuo Sano ,  Yoshitaka Sekiguchi ,  Hiroyuki Fukuda

    IPC分类号： G03G9/097

    CPC分类号： G03G9/09791 ,  G03G9/0975 ,  G03G9/09775 ,  G03G9/09783

    摘要： The negatively chargeable toner of the present invention includes a boron compound expressed by the chemical structural formula (A): ##STR1## wherein R.sub.1 and R.sub.3 respectively represent substituted or non-substituted aryl group, R.sub.2 and R.sub.4 respectively represent hydrogen atom, alkyl group, substituted or non-substituted aryl group, X represents a cation, and n is an integer of either 1 or 2; to improve charge rise characteristics and charging stability.

    摘要翻译： 本发明的带负电荷的调色剂包括由化学结构式（A）表示的硼化合物：其中R 1和R 3分别表示取代或未取代的芳基，R 2和R 4分别表示氢原子， 烷基，取代或未取代的芳基，X表示阳离子，n是1或2的整数; 以提高充电特性和充电稳定性。

    Toner for developing an electrostatic latent image
    6.
    发明授权
    Toner for developing an electrostatic latent image 有权
    用于显影静电潜像的调色剂

    公开(公告)号：US06338929B1

    公开(公告)日：2002-01-15

    申请号：US09669571

    申请日：2000-09-26

    申请人： Masayuki Hagi ,  Yoshihiro Mikuriya ,  Yoshitaka Sekiguchi ,  Kenichi Kido ,  Takeshi Arai ,  Megumi Aoki ,  Tetsuo Sano ,  Junichi Tamaoki

    发明人： Masayuki Hagi ,  Yoshihiro Mikuriya ,  Yoshitaka Sekiguchi ,  Kenichi Kido ,  Takeshi Arai ,  Megumi Aoki ,  Tetsuo Sano ,  Junichi Tamaoki

    IPC分类号： G03G910

    CPC分类号： G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/09791

    摘要： The present invention provides a toner for developing an electrostatic latent image which suppresses an adhesion and wearability on a surface of a photosensitive member and exhibits an excellent rising property of an electrification. The toner comprises (i) toner particles containing a binder resin and a colorant, (ii) a first external additive consisting of first inorganic particles whose number-average particle size is 5-40 nm, (iii) a second external additive consisting of second inorganic particles whose number-average particle size, which is larger than that of the first external additive, is 20-160 nm, (iv) a third external additive consisting of third inorganic particles whose number-average particle size, which is larger than that of the second external additive, is 80-1200 nm, and (v) a fourth external additive consisting of a metal salt of fatty acid whose volume-average particle size is 1.5-12 &mgr;m, said four external additives being externally added to the toner particles.

    摘要翻译： 本发明提供一种用于显影静电潜像的调色剂，其抑制感光构件表面上的粘合和耐磨性，并且显示出极好的起电性。 调色剂包括（i）包含粘合剂树脂和着色剂的调色剂颗粒，（ii）由数均粒径为5-40nm的第一无机颗粒组成的第一外部添加剂，（iii）由第二外部添加剂组成的第二外部添加剂 其数均粒径大于第一外部添加剂的无机粒子为20〜160nm，（iv）第三种外部添加剂，其第三种无机粒子的数均粒径大于 的第二外部添加剂为80-1200nm，和（v）由体积平均粒径为1.5-12μm的脂肪酸金属盐组成的第四外部添加剂，所述四种外部添加剂外部添加到调色剂 粒子。