Invention Grant
- Patent Title: Production process of toner for electrostatic image development
- Patent Title (中): 用于静电图像显影的调色剂的生产工艺
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Application No.: US13693100Application Date: 2012-12-04
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Publication No.: US09012120B2Publication Date: 2015-04-21
- Inventor: Tomomi Oshiba , Tomoko Mine , Hitomi Motani , Saburou Hiraoka
- Applicant: Tomomi Oshiba , Tomoko Mine , Hitomi Motani , Saburou Hiraoka
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Business Technologies, Inc.
- Current Assignee: Konica Minolta Business Technologies, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Lucas & Mercanti, LLP
- Priority: JP2011-271132 20111212
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/087

Abstract:
The production process is a process for producing a toner for electrostatic image development. The process has an aggregating step of adding an aggregating agent composed of a compound having a divalent or trivalent metal element into a dispersion with fine particles of a binder resin dispersed in an aqueous medium, and an aggregation terminating step of adding an aggregation terminating agent into the dispersion. The aggregation terminating agent is composed of a compound having at least one of a structure (1) represented by a formula (1) and a structure (2) represented by a formula (2). In the formulae (1) and (2), R1 to R9 each independently represent a hydrogen atom, a hydroxy group or an organic group. At least one of R1 and R4 or at least one of R5 and R6 represents a hydroxy group.
Public/Granted literature
- US20140011132A1 Production Process of Toner for Electrostatic Image Development Public/Granted day:2014-01-09
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