Invention Grant
- Patent Title: Non-magnetic toner
- Patent Title (中): 非磁性调色剂
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Application No.: US11917803Application Date: 2006-06-28
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Publication No.: US08084178B2Publication Date: 2011-12-27
- Inventor: Emi Tosaka , Koji Abe , Yushi Mikuriya , Satoshi Handa , Shinya Yachi , Kazumi Yoshizaki , Yasuhiro Hashimoto
- Applicant: Emi Tosaka , Koji Abe , Yushi Mikuriya , Satoshi Handa , Shinya Yachi , Kazumi Yoshizaki , Yasuhiro Hashimoto
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2006-001074 20060106; JP2006-060682 20060307
- International Application: PCT/JP2006/313351 WO 20060628
- International Announcement: WO2007/077643 WO 20070712
- Main IPC: G03G9/087
- IPC: G03G9/087

Abstract:
A non magnetic toner comprises toner particles each containing at least a binder resin, a colorant and a wax component. The toner further comprises an inorganic fine powder. A storage elastic modulus at 110° C. (G′110) of the non magnetic toner is in a range of 2.00×104 to 2.00×105 dN/m2. A storage elastic modulus at 150° C. (G′150) of the non magnetic toner is in a range of 3.00×103 to 2.00×104 dN/m2. The toner particles are obtained by dispersing a polymerizable monomer composition containing polymerizable monomers, the colorant, the wax component and a low-molecular weight polymer into an aqueous medium, granulating the dispersed polymerizable monomer composition, and polymerizing the polymerizable monomers in granulated particles. The low-molecular weight polymer has a weight average molecular weight (Mw) measured by means of gel permeation chromatography (GPC) in a range of 2000 to 5000.
Public/Granted literature
- US20090087768A1 Non-Magnetic Toner Public/Granted day:2009-04-02
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