Title:
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE, AND IMAGE FORMING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/085677
Kind Code:
A1
Abstract:
Provided is an electrophotographic photoreceptor characterized by having a protective layer (surface layer), having high Martens hardness, a high modulus of elastic deformation, and excellent adhesive properties between a photosensitive layer and the protective layer (surface layer), the electrophotographic photoreceptor also having at least a photosensitive layer and a protective layer (surface layer) on a conductive supporting body, wherein the protective layer (surface layer) includes a structure obtained by polymerizing a compound having a chain-growth functional group, and the photosensitive layer which is in contact with the protective layer (surface layer) includes a positive hole transport substance that satisfies formula (1) below and an electron transport substance that satisfies formula (2) below. (1): 600 ≤ a; (2): 400 ≤ b (in formula (1), a is the molecular weight of a hole transport substance, and in formula (2), b is the molecular weight of the electron transport substance.)
Inventors:
ANDO AKIRA (JP)
CHODA TAKAHIRO (JP)
CHODA TAKAHIRO (JP)
Application Number:
PCT/JP2021/038593
Publication Date:
April 28, 2022
Filing Date:
October 19, 2021
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
G03G5/04; G03G5/06; G03G5/147
Domestic Patent References:
| WO2018198590A1 | 2018-11-01 | |||
| WO2021193678A1 | 2021-09-30 |
Foreign References:
| JP2013041259A | 2013-02-28 | |||
| JP2017107004A | 2017-06-15 | |||
| JP2015132640A | 2015-07-23 | |||
| JP2012098500A | 2012-05-24 | |||
| JP2012123238A | 2012-06-28 | |||
| JP2015114647A | 2015-06-22 | |||
| JPH10221874A | 1998-08-21 | |||
| JP2007293247A | 2007-11-08 | |||
| JP2011242574A | 2011-12-01 | |||
| JP2021021941A | 2021-02-18 |
Attorney, Agent or Firm:
TAKEUCHI, ICHIZAWA & ASSOCIATES (JP)
Download PDF: