Invention Grant
- Patent Title: Positive charge control resin for electrophotographic functional component parts, developing roller, and electrophotographic apparatus
- Patent Title (中): 用于电子照相功能部件，显影辊和电子照相设备的正电荷控制树脂
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Application No.: US11719022Application Date: 2006-05-29
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Publication No.: US07881648B2Publication Date: 2011-02-01
- Inventor: Tatsurou Yoshida , Eri Yagi
- Applicant: Tatsurou Yoshida , Eri Yagi
- Applicant Address: JP Tsukuba-Shi
- Assignee: Canon Kasei Kabushiki Kaisha
- Current Assignee: Canon Kasei Kabushiki Kaisha
- Current Assignee Address: JP Tsukuba-Shi
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2005-174683 20050615; JP2005-185453 20050624
- International Application: PCT/JP2006/311147 WO 20060529
- International Announcement: WO2006/134788 WO 20061221
- Main IPC: G08F120/10
- IPC: G08F120/10 ; G03G15/08
Abstract:
To provide a positive charge control resin with which an electrophotographic functional component part coming into contact with a toner can be made chargeable in a polarity reverse to the polarity of the toner, and which has superior dispersibility in, and compatibility with, a main binder. The present invention is a positive charge control resin having a copolymer obtained by polymerizing specific acrylate or methacrylate monomer, amino-group-containing monomer(s) and carboxyl-group-containing monomer(s) as copolymerization components.
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