公开(公告)号：US20050069804A1

公开(公告)日：2005-03-31

申请号：US10676371

申请日：2003-09-30

申请人： Julie Qian ,  James Baker ,  Gay Herman

发明人： Julie Qian ,  James Baker ,  Gay Herman

IPC分类号： G03G9/08 ,  G03G9/12 ,  G03G9/13 ,  G03G9/135

CPC分类号： G03G9/1355 ,  G03G9/13 ,  G03G9/131 ,  G03G9/132 ,  G03G9/133

摘要： Positive liquid electrographic toner compositions are provided comprising a liquid carrier having a Kauri-Butanol number less than about 30 mL and a plurality of positively charged toner particles dispersed in the liquid carrier. The toner particles comprise a polymeric binder comprising at least one amphipathic graft copolymer comprising one or more S material portions and one or more D material portions. The toner composition additionally comprises a charge control adjuvant that is an acid or a base. These compositions have surprising bulk conductivity and charge per mass properties, particularly as the toner particles are depleted from the toner composition during printing operations.

摘要翻译： 提供了正液体电摄影调色剂组合物，其包含小于约30mL的贝壳杉脂丁醇值的液体载体和分散在液体载体中的多个带正电的调色剂颗粒。 调色剂颗粒包含聚合物粘合剂，其包含至少一种包含一个或多个S材料部分和一个或多个D材料部分的两亲性接枝共聚物。 调色剂组合物另外包含作为酸或碱的电荷控制佐剂。 这些组合物具有惊人的体积电导率和每质量特性的电荷，特别是当打印操作期间调色剂颗粒从调色剂组合物中耗尽时。

公开(公告)号：US06905807B2

公开(公告)日：2005-06-14

申请号：US10334398

申请日：2002-12-31

申请人： Eric D. Morrison ,  Julie Qian ,  James A. Baker ,  Christopher J. Wolters ,  Kam W. Law

发明人： Eric D. Morrison ,  Julie Qian ,  James A. Baker ,  Christopher J. Wolters ,  Kam W. Law

IPC分类号： C09D11/00 ,  C09D11/02 ,  C09D11/10 ,  G03G9/13

CPC分类号： C09D11/106 ,  C09D11/03 ,  C09D11/107 ,  C09D11/30 ,  G03G9/133

摘要： A liquid ink for developing electrophotography images comprises: a) a carrier liquid having a Kauri-Butanol number less than 30; b) a grafted co-polymer comprising a (co)polymeric steric stabilizer covalently bonded to a thermoplastic (co)polymeric core that is insoluble in the carrier liquid, wherein the grafted co-polymer is derived from at least a polymerizable organic compound having at least one acid group or at least one acid group; c) a dispersant having, respectively, at least an amine group or at least one acid group to form an acid-base copolymer-dispersant system or a base-acid copolymer-dispersant system, wherein the mole ratio of the amine group to the acid group is between 0.3 and 1.5 in the base-acid copolymer-dispersant system and the mole ratio of the acid group to the base group in the acid-base copolymer dispersant system is between 0.3 and 1.5; and d) a positive charge director with the acid-base copolymer charge dispersant system and a negative charge director with the base-acid copolymer charge-dispersant system.

摘要翻译： 用于显影电子照相图像的液体油墨包括：a）具有小于30的贝壳杉脂丁醇值的载液; b）接枝共聚物，其包含共价键合到不溶于载体液体的热塑性（共）聚合物核心的（共）聚合空间稳定剂，其中接枝的共聚物衍生自至少可聚合的有机化合物，其具有 至少一个酸基或至少一个酸基; c）分散剂，其分别具有至少一个胺基或至少一个酸基以形成酸基共聚物 - 分散剂体系或碱 - 酸共聚物 - 分散剂体系，其中胺基与酸的摩尔比 基酸共聚物分散剂体系中的基团为0.3〜1.5，酸基共聚物分散剂体系中的酸基与碱基的摩尔比为0.3〜1.5; 和d）具有酸碱共聚物电荷分散剂体系的正电荷导向剂和带有碱 - 酸共聚物电荷分散剂体系的负电荷导向剂。