公开(公告)号：US5124226A

公开(公告)日：1992-06-23

申请号：US596911

申请日：1990-10-16

申请人： Naoya Yabuuchi ,  Masayuki Maruta ,  Chikayuki Otsuka ,  Akihiro Kanakura ,  Akio Kashihara

发明人： Naoya Yabuuchi ,  Masayuki Maruta ,  Chikayuki Otsuka ,  Akihiro Kanakura ,  Akio Kashihara

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

CPC分类号： G03G9/08702 ,  G03G9/0806

摘要： The present invention provides a process for producing toner which has very narrow particle size distribution and contains a uniformity dispersed pigment therein. The process comprises dispersion-polymerizing(I) a pigment paste comprising (A) a pigment grinding agent having basic groups, acidic groups or the both, (B) a pigment and (C) vinyl monomers,(II) a polymerization initiator and(III) a dispersion polymerization stabilizerin a dispersion medium which dissolves said vinyl monomers (C) and dispersion polymerization stabilizer (III) and which does not dissolve polymerized resin particles.

公开(公告)号：US5202215A

公开(公告)日：1993-04-13

申请号：US666667

申请日：1991-03-07

申请人： Akihiro Kanakura ,  Koichi Fukuda ,  Chikayuki Otsuka ,  Masayuki Maruta ,  Naoya Yabuuchi

发明人： Akihiro Kanakura ,  Koichi Fukuda ,  Chikayuki Otsuka ,  Masayuki Maruta ,  Naoya Yabuuchi

IPC分类号： G03G9/08 ,  C08F283/12 ,  C08F285/00 ,  C08L51/08 ,  G03G9/087

CPC分类号： C08F285/00 ,  C08F283/12 ,  C08L51/085 ,  G03G9/08702

摘要： The present invention provides a toner which substantially excludes off set and blocking of the toner particles, and a process for preparing the toner. The toner is prepared by dispersion-polymerizing a vinyl monomer in the presence of a dispersion polymerization stabilizer, a polymerization initiator and silicone-containing organic resin microparticles in a dispersion medium which dissolves said vinyl monomer, dispersion polymerization stabilizer and polymerization initiator and which does not dissolve said silicone-containing organic resin microparticles and resulting toner particles.

公开(公告)号：US5384226A

公开(公告)日：1995-01-24

申请号：US852266

申请日：1992-06-08

申请人： Akihiro Kanakura ,  Takahito Kishida ,  Naoya Yabuuchi ,  Masayuki Maruta

发明人： Akihiro Kanakura ,  Takahito Kishida ,  Naoya Yabuuchi ,  Masayuki Maruta

IPC分类号： C08F285/00 ,  G03G9/08 ,  G03G9/087

CPC分类号： C08F285/00 ,  G03G9/0806 ,  G03G9/08702

摘要： The present invention provides a process for producing toner particles having small particle size and small particle size distribution which uniformly contain a polyolefin wax in high yield by a simple process. That is, according to the present invention, there is provided a process for producing a toner which comprises dissolving or dispersing a polymerizable composition comprising:(I) a vinyl monomer,(II) an acrylic resin-grafted polyolefin, and(III) a colorantin a dispersion solvent and then polymerizing it, wherein no resin deposition occurs when the acrylic resin-grafted polyolefin (II) is dissolved or dispersed in a mixed solution of one volume of the vinyl monomer (I) and two or more volumes of the dispersion solvent.

摘要翻译： PCT No.PCT / JP91 / 01393 Sec。 371日期：1992年6月8日 102（e）日期1992年6月8日PCT 1991年10月14日PCT PCT。 出版物WO92 / 07304 日期：1992年4月30日。本发明提供一种生产调色剂颗粒的方法，该方法通过简单的方法以高产率均匀地含有聚烯烃蜡，其颗粒尺寸小，粒度分布小。 也就是说，根据本发明，提供一种调色剂的制造方法，其包括将可聚合组合物溶解或分散在一起，所述聚合性组合物包含：（I）乙烯基单体，（II）丙烯酸树脂接枝聚烯烃和（III） 着色剂在分散溶剂中聚合，其中当将丙烯酸树脂接枝聚烯烃（II）溶解或分散在一体积乙烯基单体（I）和两个或更多体积的乙烯基单体 分散溶剂。

公开(公告)号：US5190844A

公开(公告)日：1993-03-02

申请号：US803418

申请日：1991-12-06

申请人： Naoya Yabuuchi ,  Akihiro Kanakura ,  Takahito Kishida ,  Masayuki Maruta ,  Koichi Nagata ,  Makoto Shimizu

发明人： Naoya Yabuuchi ,  Akihiro Kanakura ,  Takahito Kishida ,  Masayuki Maruta ,  Koichi Nagata ,  Makoto Shimizu

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/0806 ,  G03G9/0804 ,  G03G9/09741 ,  G03G9/0975 ,  G03G9/09758 ,  Y10S524/904 ,  Y10S525/934

摘要： The present invention provides an improved process for producing organic particles (e.g. toner particles) having uniform charge controlling coating and excellent charge controlling effect. In the process, a dispersion comprising the organic particles (A), a specific compound (B) forming insoluble substances upon reacting with an insolubilizer (D) and a dispersing medium is prepared and then reacted with the insolubilizer (D).

公开(公告)号：US4968576A

公开(公告)日：1990-11-06

申请号：US297939

申请日：1989-01-17

申请人： Masayuki Maruta ,  Katsuaki Kida ,  Eio Hisajima ,  Akio Kashihara ,  Naoya Yabuuchi

发明人： Masayuki Maruta ,  Katsuaki Kida ,  Eio Hisajima ,  Akio Kashihara ,  Naoya Yabuuchi

IPC分类号： C08F2/28 ,  G03G9/08 ,  G03G9/087 ,  G03G9/097

CPC分类号： G03G9/0819 ,  C08F2/28 ,  G03G9/08702 ,  G03G9/097 ,  Y10S526/909

摘要： Resinous microparticles useful in toner for electrophotography which are made of vinyl resin obtained by emulsion polymerization of at least one .alpha.,.beta.-ethylenically unsaturated monomers in the presence of cationic surfactant having an onium salt structure and a polymerization initiator having an amidine or amidine salt structure and whose average particle diameter is in a range of from 0.01 to 1.mu., and toner composition comprising toner particles and resinous microparticles as abovementioned are provided.

公开(公告)号：US06890695B2

公开(公告)日：2005-05-10

申请号：US10105239

申请日：2002-03-26

申请人： Eiji Shirai ,  Katsutoshi Aoki ,  Masayuki Maruta

发明人： Eiji Shirai ,  Katsutoshi Aoki ,  Masayuki Maruta

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/081 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner for electrophotography comprising a resin binder comprising a crystalline polyester and an amorphous resin, wherein said crystalline polyester is dispersed in the resin binder in an amount of from 1 to 40% by weight, and wherein 90% or more of a dispersed domain of said crystalline polyester has a diameter of from 0.1 to 2 μm. The toner for electrophotography can be suitably used for developing electrostatic latent images formed in electrophotography, electrostatic recording method, electrostatic printing, and the like.

摘要翻译： 一种电子照相用调色剂，包括含有结晶聚酯和无定形树脂的树脂粘合剂，其中所述结晶聚酯以1至40重量％的量分散在树脂粘合剂中，其中90％或更多的分散领域为 所述结晶聚酯的直径为0.1至2μm。 用于电子照相的调色剂可以适用于在电子照相术，静电记录方法，静电印刷等中形成的静电潜像显影。

公开(公告)号：US06864030B2

公开(公告)日：2005-03-08

申请号：US10255575

申请日：2002-09-27

申请人： Eiji Shirai ,  Masayuki Maruta ,  Katsutoshi Aoki

发明人： Eiji Shirai ,  Masayuki Maruta ,  Katsutoshi Aoki

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

CPC分类号： G03G9/08797 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725

摘要： A toner comprising a resin binder comprising a crystalline resin; a colorant; and fine inorganic particles, the fine inorganic particles being externally added thereto, wherein a coating ratio of the fine inorganic particles on a surface of the toner is 130 to 300%. The toner can be suitably used for developing electrostatic latent images formed in electrophotography, electrostatic recording method, electrostatic printing method and the like.

摘要翻译： 一种包含树脂粘合剂的调色剂，包括结晶树脂; 着色剂 无机微细粒子，其外部添加无机微粒子，其中调色剂表面上无机微粒的涂布率为130〜300％。 调色剂可适用于电子照相，静电记录法，静电印刷法等形成的静电潜像显影。

公开(公告)号：US06723822B2

公开(公告)日：2004-04-20

申请号：US10105322

申请日：2002-03-26

申请人： Eiji Shirai ,  Katsutoshi Aoki ,  Masayuki Maruta

发明人： Eiji Shirai ,  Katsutoshi Aoki ,  Masayuki Maruta

IPC分类号： C08G63123

CPC分类号： G03G9/08782 ,  C08G63/16 ,  C08G63/195 ,  C08G63/672 ,  C08G63/78 ,  G03G9/081 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： A crystalline polyester obtained by polycondensing monomers comprising 0.1 to 10% by mol of a divalent aromatic compound, wherein the crystalline polyester has a softening point of 85° to 150° C. The crystalline polyester can be suitably used for a resin binder for toner for electrophotography and the like used for developing electrostatic latent images formed in electrophotography, electrostatic recording method, electrostatic printing, and the like; a polyester resin composition comprising the crystalline polyester.

摘要翻译： 通过使包含0.1〜10摩尔％的二价芳香族化合物的单体缩聚得到的结晶性聚酯，其中，所述结晶性聚酯的软化点为85〜150℃。所述结晶性聚酯可适用于用于 用于显影在静电照相，静电记录方法，静电印刷等中形成的静电潜像的电子照相术等; 包含结晶聚酯的聚酯树脂组合物。

公开(公告)号：US06202945B1

公开(公告)日：2001-03-20

申请号：US09134351

申请日：1998-08-14

申请人： Shinichiro Yasuda ,  Masayuki Maruta ,  Yukiya Sato

发明人： Shinichiro Yasuda ,  Masayuki Maruta ,  Yukiya Sato

IPC分类号： B05B500

CPC分类号： B05B7/1404 ,  B05B5/032 ,  B05B12/1418

摘要： While plural kind of powder paints of different hues are mixed with each other without melting for preparation of a powder paint of a desire hue, a fluidity improver possessing a charge control function is simultaneously mixed into the powder paints without melting. The mixed powder paint containing the fluidity improver is charged, and then electrostatic powder coating is performed by the charged powder paint.

摘要翻译： 虽然将不同色调的多种粉末涂料彼此混合而不熔化以制备期望色调的粉末涂料，但是具有电荷控制功能的流动性改进剂同时混合到粉末涂料中而不熔化。 对含有流动性改进剂的混合粉末涂料进行充电，然后通过带电的粉末涂料进行静电粉末涂覆。

公开(公告)号：US5660959A

公开(公告)日：1997-08-26

申请号：US580205

申请日：1995-12-28

申请人： Shinji Moriyama ,  Masayuki Maruta

发明人： Shinji Moriyama ,  Masayuki Maruta

IPC分类号： G03G9/09 ,  G03G9/08 ,  G03G9/097 ,  G03G15/01 ,  G03G15/20 ,  G03G13/01

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

摘要： The toner for color electrophotography employing simultaneously fixing of various color toners, includes at least a coloring agent and a binder resin, wherein inorganic fine particles are internally added to the toner to have viscoelastic properties approximated to a level of other toners with different colors to be simultaneously fixed together therewith. The method for heat and pressure fixing a transferred image formed by toners of two or more colors on a recording medium using a heat roller, includes the step of fixing the transferred image formed by the above toner for color electrophotography together with black toner.

摘要翻译： 用于同时固定各种颜色调色剂的彩色电子照相用调色剂包括至少一种着色剂和粘合剂树脂，其中无机细颗粒内部添加到调色剂中以使粘弹性能接近于具有不同颜色的其它调色剂的水平 同时固定在一起。 使用加热辊在记录介质上将由两种或更多种颜色的调色剂形成的转印图像进行加热和定影的方法包括将由上述色调用调色剂形成的转印图像与黑色调色剂一起固定的步骤。