Invention Grant
- Patent Title: Method for manufacturing toner for electrostatic charge image development
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Application No.: US17418941Application Date: 2019-12-26
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Publication No.: US12061440B2Publication Date: 2024-08-13
- Inventor: Kojiro Akazaki , Takeru Chiba , Takashi Iga
- Applicant: ZEON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: ZEON CORPORATION
- Current Assignee: ZEON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: WHDA, LLP
- Priority: JP 18248280 2018.12.28 JP 18248296 2018.12.28
- International Application: PCT/JP2019/051306 2019.12.26
- International Announcement: WO2020/138369A 2020.07.02
- Date entered country: 2021-06-28
- Main IPC: G03G9/087
- IPC: G03G9/087 ; G03G9/08

Abstract:
The present invention provides a method for producing a toner for electrostatic-image development comprising: a dispersing step of performing a dispersing treatment in which a cavitation effect is obtained on a color resin particle containing a binder resin, a colorant, a charge control agent, and a release agent in an aqueous dispersion medium so as to obtain a dispersion of the color resin particle; and a heating step of performing a heat treatment on the dispersion of the color resin particle at a temperature of equal to or more than a glass transition temperature of the color resin particle and 95° C. or less for a heating time of 5 minutes or more and 10 hours or less.
Public/Granted literature
- US20220066336A1 METHOD FOR MANUFACTURING TONER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT Public/Granted day:2022-03-03
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