发明名称 LIQUID DEVELOPER
摘要 PROBLEM TO BE SOLVED: To minimize adverse effects on the electric resistance of a liquid developer for electrophotography or electrostatic recording and on the electrostatic charge characteristics of toner particles and to provide a liquid developer having improved dispersibility of a pigment and improved dispersion stability of toner particles. SOLUTION: In the liquid developer containing at least an insulating organic solvent, a colorant, a thermoplastic resin and a dispersant and containing an electric charge controlling agent if necessary, a modified novolak resin (A) having an aromatic ring and the structure of an epoxy group ring-opened by a carboxyl group derived from a hydroxycarboxylic aid and/or a graft copolymer (B) are (is) contained as the dispersant.
申请公布号 JP2002139871(A) 申请公布日期 2002.05.17
申请号 JP20000333358 申请日期 2000.10.31
申请人 SAKATA CORP 发明人 IWASE KOJI;ARAI KIYOSHI;MORIKAWA YOSHIYUKI
分类号 G03G9/13;C08F8/14;C08F212/08;C08F220/18;C08F220/28;C08G59/14;C08K5/00;C08L25/08;C08L33/06;C08L33/14;C08L63/04;C08L101/00;(IPC1-7):G03G9/13 主分类号 G03G9/13
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