Invention Grant
- Patent Title: Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
- Patent Title (中): 电子照相感光构件,处理盒和电子照相设备
-
Application No.: US12640466Application Date: 2009-12-17
-
Publication No.: US07901855B2Publication Date: 2011-03-08
- Inventor: Harunobu Ogaki , Hiroki Uematsu , Atsushi Ochi
- Applicant: Harunobu Ogaki , Hiroki Uematsu , Atsushi Ochi
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2008-187180 20080718
- Main IPC: G03G5/05
- IPC: G03G5/05

Abstract:
A charge transport layer serving as a surface layer of an electrophotographic photosensitive member contains a polyester resin having a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), as a binder resin; the content of a siloxane moiety of the polyester resin is not less than 5% by mass and not more than 30% by mass relative to the total mass of the polyester resin; and the content of the polyester resin in the charge transport layer is not less than 60% by mass relative to the total mass of the whole binder resin in the charge transport layer.
Public/Granted literature
- US20100092209A1 ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS Public/Granted day:2010-04-15
Information query
IPC分类: