Invention Grant
- Patent Title: Method of producing electrophotographic photosensitive member, and emulsion for a charge transporting layer
- Patent Title (中): 制造电子照相感光构件的方法和用于电荷输送层的乳液
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Application No.: US14378288Application Date: 2013-03-15
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Publication No.: US09280071B2Publication Date: 2016-03-08
- Inventor: Akihiro Maruyama , Atsushi Okuda , Takeshi Murakami , Hiroki Uematsu , Harunobu Ogaki
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper and Scinto
- Priority: JP2012-065661 20120322; JP2013-037192 20130227
- International Application: PCT/JP2013/058455 WO 20130315
- International Announcement: WO2013/141391 WO 20130926
- Main IPC: G03G5/00
- IPC: G03G5/00 ; G03G5/06 ; G03G5/05 ; G03G5/07

Abstract:
The present invention provides a method of producing an electrophotographic photosensitive member in which the amount of an organic solvent to be used for a coating solution for a charge transporting layer is reduced, and the stability of the coating solution for a charge transporting layer after preservation for a long time is improved, enabling formation of a charge transporting layer having high uniformity. The method includes: preparing a solution containing a charge transporting substance, a resin having a carbonyl group, and at least one compound selected from the group consisting of a compound represented by the formula (A), a compound represented by the formula (B), a compound represented by the formula (C), a compound represented by the formula (D), and a compound represented by the formula (E); dispersing the solution in water to prepare an emulsion; forming a coat by using the emulsion; and heating the coat to form a charge transporting layer.
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