Invention Grant
- Patent Title: Liquid developer
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Application No.: US17020253Application Date: 2020-09-14
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Publication No.: US11624987B2Publication Date: 2023-04-11
- Inventor: Yuzo Tokunaga , Takashi Hirasa , Yasutaka Akashi , Masato Nakajima , Naohiko Tsuchida , Akifumi Matsubara , Kohji Takenaka , Yuya Chimoto , Kouichirou Ochi , Tomoyo Miyakai
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JPJP2018-049211 20180316
- Main IPC: G03G9/13
- IPC: G03G9/13

Abstract:
A liquid developer comprising: a toner particle containing binder resin; a carrier liquid; and a basic toner particle dispersing agent, wherein the basic toner particle dispersing agent is a primary amine, an acid value of the binder resin is at least 10 mg KOH/g, an acid value of a component having a molecular weight of not more than 2,000 contained in the binder resin is not more than 5 mg KOH/g, and a hydroxyl value of the component having a molecular weight of not more than 2,000 contained in the binder resin is not more than 10 mg KOH/g.
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