发明名称 LIQUID DEVELOPING AGENT AND PROCESS FOR PRODUCING THE SAME
摘要 A liquid developing agent for electrophotography or electrostatic recording that can realize a high solid content and has excellent developing properties is characterized in that colored chips produced by heat kneading a pigment with a thermoplastic resin are dispersed by wet pulverization in an electrically insulating hydrocarbon solvent containing at least one pigment dispersant selected from the group consisting of specific modified novolak resins (A) having an aromatic ring and a ring opened structure of an epoxy group by a hydroxycarboxylic acid-derived carboxyl group, and copolymers (B).
申请公布号 US2010062361(A1) 申请公布日期 2010.03.11
申请号 US20060915422 申请日期 2006.05.24
申请人 IWASE KOJI 发明人 IWASE KOJI
分类号 G03G9/09;G03G9/08 主分类号 G03G9/09
代理机构 代理人
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