申请人:HODOGAYA CHEMICAL CO., LTD.
公开号:US10474050B2
公开(公告)日:2019-11-12
The purpose of the present invention is to provide a charge control agent for polymerized toners and particularly for color toners, which has a large charge amount and environmentally stable charging characteristics.
Since a charge control agent including a pyrazolone derivative represented by a general formula (1) or a salt of the derivative as an active ingredient has a large charge amount and excellent environmental stability of charging, it has an excellent charge-imparting effect for use in polymerized toners and particularly in color toners:
in the formula, R1, R2, and R3 each independently represent a substituted or unsubstituted C1 to C20 linear or branched alkyl group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.
本发明的目的是提供一种用于聚合色调剂,特别是彩色调剂的电荷控制剂,其具有大的电荷量和环境稳定的充电特性。由于包括一种由通式(1)表示的吡唑酮衍生物或其衍生物的盐作为活性成分的电荷控制剂具有大的电荷量和优异的环境稳定性,因此它具有在聚合色调剂,特别是彩色调剂中使用的优异的充电效果:在该式中,R1,R2和R3各自独立地表示取代或未取代的C1到C20线性或支链烷基,取代或未取代的芳香烃基,取代或未取代的芳香杂环基或取代或未取代的紧缩多环芳香基。