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    Toner for developing electrostatic image and method of manufacturing resin composition
    2.
    发明授权
    Toner for developing electrostatic image and method of manufacturing resin composition 失效
    用于显影静电图像的调色剂和制造树脂组合物的方法

    公开(公告)号：US5489498A

    公开(公告)日：1996-02-06

    申请号：US182357

    申请日：1994-01-18

    申请人： Manabu Ohno ,  Akihiko Nakazawa ,  Nobuyuki Okubo ,  Shunji Suzuki ,  Hiroyuki Suematsu ,  Masayoshi Kato

    发明人： Manabu Ohno ,  Akihiko Nakazawa ,  Nobuyuki Okubo ,  Shunji Suzuki ,  Hiroyuki Suematsu ,  Masayoshi Kato

    IPC分类号： C08L101/00 ,  C08F4/38 ,  G03G9/087 ,  G03G9/097

    CPC分类号： G03G9/08791 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/09783

    摘要： The present invention relates a toner for developing electrostatic images, comprising: a resin composition, which contains a binder resin and low molecular weight wax, and a coloring agent, wherein the binder resin does not substantially contain insoluble tetrahydrofuran (THF) component, its chromatograph measured with soluble tetrahydrofuran (THF) component has a main peak in a region of a molecular weight of 2,000 to 30,000 and a subpeak or a shoulder in a high molecular weight region of a molecular weight of 100,000 or more, a ratio of weight average molecular weight (Mw)/number average molecular weight (Mn) thereof is 30 or more, the high molecular weight region has a crosslinking monomer unit as a component monomer unit and the binder resin contains high molecular weight polymer having a Mw of 1,200,000 or more polymerized by using both polyfunctional initiator and a mono-functional initiator. Moreover, the present invention relates to a method of manufacturing a resin composition for producing a toner.

    摘要翻译： 本发明涉及一种用于静电图像显影的调色剂，其包含：含有粘合剂树脂和低分子量蜡的树脂组合物和着色剂，其中粘合剂树脂基本上不含不溶性四氢呋喃（THF）组分，其色谱 用可溶性四氢呋喃（THF）成分测定的分子量为2000〜30,000的区域的主峰，分子量为100,000以上的高分子量区域的亚峰或肩峰，重均分子量 重量（Mw）/数均分子量（Mn）为30以上，高分子量区域具有作为成分单体单元的交联单体单元，粘合剂树脂含有Mw为1,200,000以上的高分子量聚合物，聚合 通过使用多官能引发剂和单官能引发剂。 此外，本发明涉及制造调色剂用树脂组合物的方法。

    Toner for developing electrostatic image containing higher and lower molecular weight polymer components
    3.
    发明授权
    Toner for developing electrostatic image containing higher and lower molecular weight polymer components 失效
    用于显影含有较高和较低分子量聚合物组分的静电图像的调色剂

    公开(公告)号：US5744276A

    公开(公告)日：1998-04-28

    申请号：US220044

    申请日：1994-03-30

    申请人： Manabu Ohno ,  Hiroyuki Suematsu ,  Akihiko Nakazawa ,  Nobuyuki Okubo ,  Shunji Suzuki

    发明人： Manabu Ohno ,  Hiroyuki Suematsu ,  Akihiko Nakazawa ,  Nobuyuki Okubo ,  Shunji Suzuki

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G13/20

    CPC分类号： G03G9/09783 ,  G03G13/20 ,  G03G9/0821 ,  G03G9/08711 ,  G03G9/08791 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/091 ,  G03G2215/021 ,  G03G2221/183

    摘要： An electrophotographic toner composition suitable for heat-fixation and showing good storage characteristics is constituted by polymer components, a colorant and a metal-containing organic compound. The toner composition shows a melt index (at 125.degree. C., 10 kg-load) of 5-25 g/10 min., and the polymer components are characterized by (a) containing substantially no THF (tetrahydrofuran)-insoluble content, (b) including a THF-soluble content thereof providing a GPC (gel permeation chromatography) chromatogram showing i) a main peak in a molecular weight region of 2.times.10.sup.3 -3.times.10.sup.4, and a sub-peak or shoulder in a molecular weight region of at least 10.sup.5, and ii) an areal percentage of 3-10% in a molecular weight region of at least 10.sup.6, and (c) including a polymer component (H) in a molecular weight region of at least 10.sup.5 obtained by polymerization using a polyfunctional polymerization initiator and a monofunctional polymerization initiator.

    摘要翻译： 适合于热定影和显示良好储存特性的电子照相调色剂组合物由聚合物组分，着色剂和含金属的有机化合物构成。 调色剂组合物显示5-25g / 10min的熔融指数（125℃，10kg负载），聚合物组分的特征在于（a）基本上不含THF（四氢呋喃） - 不溶物含量， （b）包括其可溶于THF的含量，提供GPC（凝胶渗透色谱）色谱图，其显示i）分子量区域中的主峰为2×103-3×104，以及至少分子量区域中的亚峰或肩峰 105，和ii）分子量区域中至少为106的3-10％的面积百分比，和（c）包括通过使用多官能聚合的聚合获得的至少105的分子量区域中的聚合物组分（H） 引发剂和单官能聚合引发剂。

    Image forming method employing toner containing higher and lower molecular weight polymer components
    4.
    发明授权
    Image forming method employing toner containing higher and lower molecular weight polymer components 失效
    使用含有较高和较低分子量聚合物组分的调色剂的成像方法

    公开(公告)号：US5942366A

    公开(公告)日：1999-08-24

    申请号：US022975

    申请日：1998-02-12

    申请人： Manabu Ohno ,  Hiroyuki Suematsu ,  Akihiko Nakazawa ,  Nobuyuki Okubo ,  Shunji Suzuki

    发明人： Manabu Ohno ,  Hiroyuki Suematsu ,  Akihiko Nakazawa ,  Nobuyuki Okubo ,  Shunji Suzuki

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G13/20 ,  G03G13/22 ,  G03G15/08

    CPC分类号： G03G9/09783 ,  G03G13/20 ,  G03G9/0821 ,  G03G9/08711 ,  G03G9/08791 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/091 ,  G03G2215/021 ,  G03G2221/183

    摘要： An electrophotographic toner composition suitable for heat-fixation and showing good storage characteristics is constituted by polymer components, a colorant and a metal-containing organic compound. The toner composition shows a melt index (at 125.degree. C., 10 kg-load) of 5-25 g/10 min., and the polymer components are characterized by (a) containing substantially no THF (tetrahydrofuran)-insoluble content, (b) including a THF-soluble content thereof providing a GPC (gel permeation chromatography) chromatogram showing i) a main peak in a molecular weight region of 2.times.10.sup.3 -3.times.10.sup.4, and a sub-peak or shoulder in a molecular weight region of at least 10.sup.5, and ii) an areal percentage of 3-10% in a molecular weight region of at least 10.sup.6, and (c) including a polymer component (H) in a molecular weight region of at least 10.sup.5 obtained by polymerization using a polyfunctional polymerization initiator and a mono-functional polymerization initiator.

    摘要翻译： 适用于热定影和显示良好储存特性的电子照相调色剂组合物由聚合物组分，着色剂和含金属的有机化合物构成。 调色剂组合物显示5-25g / 10min的熔融指数（125℃，10kg负载），聚合物组分的特征在于（a）基本上不含THF（四氢呋喃） - 不溶物含量， （b）包括其可溶于THF的含量，提供GPC（凝胶渗透色谱）色谱图，其显示i）分子量区域中的主峰为2×103-3×104，以及至少分子量区域中的亚峰或肩峰 105，和ii）分子量区域中至少为106的3-10％的面积百分比，和（c）包括通过使用多官能聚合的聚合获得的至少105的分子量区域中的聚合物组分（H） 引发剂和单官能聚合引发剂。

    Magnetic developer for developing electrostatic images
    5.
    发明授权
    Magnetic developer for developing electrostatic images 失效
    磁性显影剂用于静电图像显影

    公开(公告)号：US5364720A

    公开(公告)日：1994-11-15

    申请号：US135974

    申请日：1993-10-14

    申请人： Akihiko Nakazawa ,  Masayoshi Kato ,  Manabu Ohno ,  Nobuyuki Okubo ,  Shunji Suzuki

    发明人： Akihiko Nakazawa ,  Masayoshi Kato ,  Manabu Ohno ,  Nobuyuki Okubo ,  Shunji Suzuki

    IPC分类号： G03G9/083 ,  G03G9/087

    CPC分类号： G03G9/0836 ,  G03G9/0839 ,  G03G9/08797

    摘要： A magnetic developer for developing electrostatic images is constituted by magnetic toner particles, each containing a binder resin having a melt viscosity of at most 5.0.times.10.sup.6 poise at 150.degree. C. and a magnetic material. The magnetic material is blended with a proportion (C) [wt. %] of inorganic fine particles based on the magnetic material to carry 0.2-5 wt. % of the inorganic fine particles secured to the magnetic material surface. The magnetic material has a specific surface area (A) [m.sup.2 /g] before securing of the inorganic fine particles and is provided with an increase in surface area (B) [m.sup.2 /g] by the securing of the inorganic fine particles; wherein the parameters A, B and C satisfy the following formulae (1) and (2):0.1.ltoreq.B/A.ltoreq.0.8 (1)B

    摘要翻译： 用于显影静电图像的磁性显影剂由磁性调色剂颗粒构成，每个磁性调色剂颗粒含有在150℃下熔体粘度至多为5.0×10 6泊的粘合剂树脂和磁性材料。 将磁性材料与（C）[wt。 ％]基于磁性材料的无机细颗粒携带0.2-5重量％ ％的无机细颗粒固定在磁性材料表面上。 磁性材料在固定无机细颗粒之前具有比表面积（A）[m2 / g]，并且通过确保无机细颗粒而使表面积（B）[M2 / g]增加。 其中参数A，B和C满足下列公式（1）和（2）：0.1

    Toner for developing electrostatic image, image forming method and process-cartridge
    6.
    发明授权
    Toner for developing electrostatic image, image forming method and process-cartridge 失效
    用于显影静电图像，成像方法和处理盒的调色剂

    公开(公告)号：US5962176A

    公开(公告)日：1999-10-05

    申请号：US791350

    申请日：1997-01-30

    申请人： Manabu Ohno ,  Yukari Ishibashi ,  Nobuyuki Okubo ,  Shunji Suzuki

    发明人： Manabu Ohno ,  Yukari Ishibashi ,  Nobuyuki Okubo ,  Shunji Suzuki

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08711 ,  G03G9/08702 ,  G03G9/08791

    摘要： A toner for developing an electrostatic image is constituted by a composition containing a binder resin component and a coloring agent, wherein the binder resin component contains a low-molecular weight component having a molecular weight of at most 5.times.10.sup.4 and a branching index g' of below 1. The low-molecular weight polymer component is preferably obtained by polymerizing a second monomer in mixture with a prepolymer in the presence of a polymerization initiator comprising a peroxide having a functional group of: ##STR1## and mixed with a high-molecular weight polymer component obtained by polymerization in the presence of a poly-functional polymerization initiator, and a low-molecular weight wax. The resultant toner is characterized by a good balance between the fixability and anti-offset characteristic.

    摘要翻译： 用于显影静电图像的调色剂由含有粘合剂树脂组分和着色剂的组合物构成，其中粘合剂树脂组分含有分子量至多为5×10 4的低分子量组分和支链指数g'低于 低分子量聚合物组分优选通过在包含具有官能团的过氧化物的聚合引发剂存在下与预聚物聚合来获得，并与由高分子量聚合物组分获得的高分子量聚合物组分 在多官能聚合引发剂和低分子量蜡存在下进行聚合。 所得到的调色剂的特征在于定影性和抗偏移特性之间的良好平衡。

    Toner for developing electrostatic images and process for production thereof
    9.
    发明授权
    Toner for developing electrostatic images and process for production thereof 失效
    用于显影静电图像的调色剂及其生产方法

    公开(公告)号：US5840459A

    公开(公告)日：1998-11-24

    申请号：US662081

    申请日：1996-06-12

    申请人： Manabu Ohno ,  Satoshi Mitsumura ,  Nobuyuki Okubo ,  Yoshinori Tsuji

    发明人： Manabu Ohno ,  Satoshi Mitsumura ,  Nobuyuki Okubo ,  Yoshinori Tsuji

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

    CPC分类号： G03G9/0821 ,  G03G9/08711 ,  G03G9/08782 ,  G03G9/08797 ,  G03G9/09783

    摘要： A toner for developing electrostatic images, includes toner particles and 10-500 isolated low-molecular weight wax particles per 10,000 toner particles. The toner has a melt index as measured at 125.degree. C. under a load of 98 N of at least 10. The toner particles comprise at least a binder resin, a colorant and the low-molecular weight wax. The low-molecular weight wax comprises a compound represented by the formula of: R--Y, wherein R denotes a hydrocarbon group, and Y denotes a hydroxyl group, carboxyl group, alkyl ether group or alkyl ester group. The low-molecular weight wax has a thermal property providing a DSC curve as measured by a differential scanning calorimeter exhibiting: (i) a maximum heat-absorption peak having a peak temperature in a temperature range of 70.degree.-130.degree. C.; (ii) a heat-absorption peak including the maximum heat-absorption peak showing an onset temperature of at least 50.degree. C., and (iii) a maximum heat-evolution peak in a range of .+-.15.degree. C. from the peak temperature of the maximum hat-absorption peak. The toner shows a good fixability while retaining a good productivity through the melt-kneading-pulverization process.

    摘要翻译： 用于显影静电图像的调色剂包括每10,000个调色剂颗粒中的调色剂颗粒和10-500个分离的低分子量蜡颗粒。 该调色剂在125℃负载下测定的熔体指数为98N至少为10.调色剂颗粒至少包含粘合剂树脂，着色剂和低分子量蜡。 低分子量蜡包括由下式表示的化合物：R-Y，其中R表示烃基，Y表示羟基，羧基，烷基醚基或烷基酯基。 低分子量蜡具有提供通过差示扫描量热计测量的DSC曲线的热性质，其显示出：（i）峰值温度在70℃-130℃的最大吸热峰; （ii）包括显示起始温度至少为50℃的最大吸热峰的热吸收峰，和（iii）在+/- 15℃范围内的最大放热峰 最高帽吸收峰的峰值温度。 调色剂通过熔融捏合粉碎过程保持良好的生产率，显示出良好的定影性。

    Magnetic toner, apparatus unit and image forming method
    10.
    发明授权
    Magnetic toner, apparatus unit and image forming method 失效
    磁性调色剂，设备单元和成像方法

    公开(公告)号：US5858593A

    公开(公告)日：1999-01-12

    申请号：US902323

    申请日：1997-07-29

    申请人： Osamu Tamura ,  Koichi Tomiyama ,  Nobuyuki Okubo ,  Shunji Suzuki ,  Yoshihiro Ogawa ,  Keita Nozawa

    发明人： Osamu Tamura ,  Koichi Tomiyama ,  Nobuyuki Okubo ,  Shunji Suzuki ,  Yoshihiro Ogawa ,  Keita Nozawa

    IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G13/09 ,  G03G15/08 ,  G03G15/09

    CPC分类号： G03G9/0835 ,  G03G13/09 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0833

    摘要： Disclosed are a magnetic toner for developing an electrostatic latent image comprising magnetic toner particles containing a binder resin of 100 parts by weight and a magnetic substance of 20 to 150 parts by weight, and an apparatus unit and an image forming method for employing the magnetic toner. A frictional electrification property is such that the absolute value of the frictional electrification amount relative to an iron powder of 250 mesh-pass to 350 mesh-on is 25 to 40 mc/kg. Assuming that for particle distribution of the magnetic toner a weight-average particle diameter (D.sub.4) for the magnetic toner is X (.mu.m) and that a count % in a count distribution of magnetic toner particles that have a diameter of 3.17 .mu.m or smaller is Y (%), expressions (1) and (2) are satisfied:-5X+35.ltoreq.Y.ltoreq.-25X+180 (1)3.5.ltoreq.X.ltoreq.6.5 (2).Sphericity (.psi.) of particles is equal to or greater than 0.80 and a product (.sigma..sub.r .times.H.sub.c) of remanence �.sigma..sub.r (Am.sup.2 /kg)! and coercive force (H.sub.c (kA/m)! of the magnetic substance in a magnetic field of 795.8 kA/m (10 k oersted) is 10 to 56 (kA.sup.2 m/kg).

    摘要翻译： 公开了一种用于显影静电潜像的磁性调色剂，其包含含有100重量份的粘合剂树脂的磁性调色剂颗粒和20至150重量份的磁性物质，以及用于使用磁性调色剂的装置单元和图像形成方法 。 摩擦带电特性使得相对于250目通过至350目的铁粉的摩擦带电量的绝对值为25〜40mc / kg。 假设对于磁性调色剂的颗粒分布，磁性调色剂的重均粒径（D4）为X（μm），并且磁性调色剂颗粒的计数分布的计数％为直径为3.17μm，或 较小的是Y（％），表达式（1）和（2）满足：-5X + 35