Invention Grant
- Patent Title: Electrophotographic toner and method of preparing the toner
- Patent Title (中): 电子照相调色剂和调色剂的制备方法
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Application No.: US11029453Application Date: 2005-01-06
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Publication No.: US07666566B2Publication Date: 2010-02-23
- Inventor: Shinji Ohtani , Hiroshi Yamashita , Yohichiroh Watanabe , Tsunemi Sugiyama , Takuya Saito
- Applicant: Shinji Ohtani , Hiroshi Yamashita , Yohichiroh Watanabe , Tsunemi Sugiyama , Takuya Saito
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2004-001077 20040106
- Main IPC: G03G9/113
- IPC: G03G9/113
Abstract:
A method of preparing a toner in an aqueous medium, including: preparing a dispersion or an emulsion of a toner composition comprising a resin including a carboxyl group and a colorant; and mixing an aromatic compound having a carboxyl group with the dispersion or emulsion, such that the carboxyl group on a surface of the toner is connected with the carboxyl group of the aromatic compound by hydrogen bonding.
Public/Granted literature
- US20050196691A1 Electrophotographic toner and method of preparing the toner Public/Granted day:2005-09-08
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