公开(公告)号：US07851117B2

公开(公告)日：2010-12-14

申请号：US12095042

申请日：2006-11-24

申请人： Takaaki Yodo ,  Katsutoshi Okamoto ,  Hideo Shibata ,  Koji Iwase

发明人： Takaaki Yodo ,  Katsutoshi Okamoto ,  Hideo Shibata ,  Koji Iwase

IPC分类号： G03G9/12

CPC分类号： G03G9/13 ,  G03G9/12 ,  G03G9/1355

摘要： It is an object of the present invention to provide a liquid developer in which in liquid developers for electrophotography or electrostatic recording obtained using the coacervation method, electric resistance of the liquid developer and the electrophoretic property or the charging characteristic of the toner particles are adequately maintained, and the dispersibility of a pigment and the dispersion stability of the toner particles are good.A liquid developer formed by dispersing colored resin particles comprising at least a pigment, a dispersant and a resin in a hydrocarbon insulating medium using a coacervation method, wherein said dispersant is a carbodiimide compound having at least one basic nitrogen-containing group and at least one polyester side chain introduced through a reaction with a carbodiimide group in its molecule, and said resin is an acid group-containing resin and the acid value of the resin is 1 to 100.

摘要翻译： 本发明的目的是提供一种液体显影剂，其中使用凝聚法获得的用于电子照相或静电记录的液体显影剂，液体显影剂的电阻和调色剂颗粒的电泳特性或充电特性得到充分保持 ，颜料的分散性和调色剂颗粒的分散稳定性良好。 一种液体显影剂，其通过使用凝聚法将至少包含颜料，分散剂和树脂的着色树脂颗粒分散在烃绝缘介质中而形成，其中所述分散剂是具有至少一个碱性含氮基团的碳二亚胺化合物和至少一种 通过与其分子中的碳二亚胺基反应引入的聚酯侧链，所述树脂是含酸基的树脂，树脂的酸值为1〜100。

公开(公告)号：US20090246678A1

公开(公告)日：2009-10-01

申请号：US12095042

申请日：2006-11-24

申请人： Takaaki Yodo ,  Katsutoshi Okamoto ,  Hideo Shibata ,  Koji Iwase

发明人： Takaaki Yodo ,  Katsutoshi Okamoto ,  Hideo Shibata ,  Koji Iwase

IPC分类号： G03G9/12

CPC分类号： G03G9/13 ,  G03G9/12 ,  G03G9/1355

摘要： It is an object of the present invention to provide a liquid developer in which in liquid developers for electrophotography or electrostatic recording obtained using the coacervation method, electric resistance of the liquid developer and the electrophoretic property or the charging characteristic of the toner particles are adequately maintained, and the dispersibility of a pigment and the dispersion stability of the toner particles are good.A liquid developer formed by dispersing colored resin particles comprising at least a pigment, a dispersant and a resin in a hydrocarbon insulating medium using a coacervation method, wherein said dispersant is a carbodiimide compound having at least one basic nitrogen-containing group and at least one polyester side chain introduced through a reaction with a carbodiimide group in its molecule, and said resin is an acid group-containing resin and the acid value of the resin is 1 to 100.

摘要翻译： 本发明的目的是提供一种液体显影剂，其中使用凝聚方法获得的用于电子照相或静电记录的液体显影剂，液体显影剂的电阻和调色剂颗粒的电泳特性或充电特性得到充分保持 ，颜料的分散性和调色剂颗粒的分散稳定性良好。 一种液体显影剂，其通过使用凝聚法将至少包含颜料，分散剂和树脂的着色树脂颗粒分散在烃绝缘介质中而形成，其中所述分散剂是具有至少一个碱性含氮基团的碳二亚胺化合物和至少一种 通过与其分子中的碳二亚胺基反应引入的聚酯侧链，所述树脂是含酸基的树脂，树脂的酸值为1〜100。

公开(公告)号：US20100323291A1

公开(公告)日：2010-12-23

申请号：US12679822

申请日：2008-09-26

申请人： Hirohito Maeda ,  Katsutoshi Okamoto ,  Takaaki Yodo ,  Naoya Inazumi ,  Koji Iwase

发明人： Hirohito Maeda ,  Katsutoshi Okamoto ,  Takaaki Yodo ,  Naoya Inazumi ,  Koji Iwase

IPC分类号： G03G9/13 ,  G03G9/12

CPC分类号： G03G9/131 ,  G03G9/1355

摘要： The present invention provides a method for producing a liquid developer for electrophotography or electrostatic recording obtained by a coacervation method, which sufficiently maintains the charging property and has good dispersion stability of colored resin particles, as well as a liquid developer obtained by the method.A method for producing a liquid developer by a coacervation method, wherein a colored resin particle is dispersed in an insulating hydrocarbon dispersion medium in the presence of a particle dispersant and an acid group-containing resin, and the particle dispersant is a reaction product of a polyamine compound and a self-condensation product of a hydroxycarboxylic acid.

摘要翻译： 本发明提供了通过凝聚法获得的用于电子照相或静电记录的液体显影剂的方法，其充分保持着色树脂颗粒的充电性能和良好的分散稳定性，以及通过该方法获得的液体显影剂。 通过凝聚法制造液体显影剂的方法，其中着色树脂颗粒在颗粒分散剂和含酸基树脂的存在下分散在绝缘烃分散介质中，并且颗粒分散剂是 多胺化合物和羟基羧酸的自缩合产物。

公开(公告)号：US08722302B2

公开(公告)日：2014-05-13

申请号：US12679822

申请日：2008-09-26

申请人： Hirohito Maeda ,  Katsutoshi Okamoto ,  Takaaki Yodo ,  Naoya Inazumi ,  Koji Iwase

发明人： Hirohito Maeda ,  Katsutoshi Okamoto ,  Takaaki Yodo ,  Naoya Inazumi ,  Koji Iwase

IPC分类号： G03G9/13

CPC分类号： G03G9/131 ,  G03G9/1355

摘要： The present invention provides a method for producing a liquid developer for electrophotography or electrostatic recording obtained by a coacervation method, which sufficiently maintains the charging property and has good dispersion stability of colored resin particles, as well as a liquid developer obtained by the method.A method for producing a liquid developer by a coacervation method, wherein a colored resin particle is dispersed in an insulating hydrocarbon dispersion medium in the presence of a particle dispersant and an acid group-containing resin, and the particle dispersant is a reaction product of a polyamine compound and a self-condensation product of a hydroxycarboxylic acid.

摘要翻译： 本发明提供了通过凝聚法获得的用于电子照相或静电记录的液体显影剂的方法，其充分保持着色树脂颗粒的充电性能和良好的分散稳定性，以及通过该方法获得的液体显影剂。 通过凝聚法制造液体显影剂的方法，其中着色树脂颗粒在颗粒分散剂和含酸基树脂的存在下分散在绝缘烃分散介质中，并且颗粒分散剂是 多胺化合物和羟基羧酸的自缩合产物。