US 12,449,740 B2
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
Masashi Nishi, Kanagawa (JP); and Kunihiko Sekido, Shizuoka (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Aug. 31, 2022, as Appl. No. 17/823,627.
Claims priority of application No. 2021-150504 (JP), filed on Sep. 15, 2021.
Prior Publication US 2023/0093328 A1, Mar. 23, 2023
Int. Cl. G03G 5/047 (2006.01); G03G 5/06 (2006.01); G03G 5/087 (2006.01); G03G 5/09 (2006.01); G03G 21/18 (2006.01)
CPC G03G 5/047 (2013.01) [G03G 5/06142 (2020.05); G03G 5/087 (2013.01); G03G 5/09 (2013.01); G03G 21/1814 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electrophotographic photosensitive member, comprising:
a support; and
a surface layer, the surface layer comprises a cured product of a composition containing an organic salt having a polymerizable functional group and at least one member selected from the group consisting of a charge-transportable compound and an electroconductive particle, wherein
the organic salt is at least one compound selected from the group consisting of formulae (A)-(E)

OG Complex Work Unit Chemistry

OG Complex Work Unit Chemistry

OG Complex Work Unit Chemistry

OG Complex Work Unit Chemistry

OG Complex Work Unit Chemistry
where Ra1 and Ra3 independently represent a single bond or an alkylene group having 8 or less carbon atoms that may have a hydroxy group as a substituent,
Ra2 represents a hydrogen atom, a methyl group or an ethyl group,
Za1 and Za2 independently represent a hydrogen atom, an acryloyloxy group, a methacryloyloxy group, a vinyl group, a hydroxy group, a carboxy group, a thiol group or an amino group, provided that at least one of Za1 or Za2 represents an acryloyloxy group, a methacryloyloxy group or a vinyl group,
Rb1, Rb3 and Rb4 independently represent a single bond or an alkylene group having 8 or less carbon atoms that may have a hydroxy group as a substituent,
Rb2 represents a hydrogen atom, a methyl group or an ethyl group,
Zb1, Zb2 and Zb3 independently represent a hydrogen atom, an acryloyloxy group, a methacryloyloxy group, a vinyl group, a hydroxy group, a carboxy group, a thiol group or an amino group, provided that at least one of Zb1, Zb2 or Zb3 represents an acryloyloxy group, a methacryloyloxy group or a vinyl group,
Rc1 and Rc2 independently represent a single bond or an alkylene group having 8 or less carbon atoms that may have a hydroxy group as a substituent,
Zc1 and Zc2 independently represent a hydrogen atom, an acryloyloxy group, a methacryloyloxy group, a vinyl group, a hydroxy group, a carboxy group a thiol group, or an amino group, provided that at least one of Zc1 or Zc2 represents an acryloyloxy group, a methacryloyloxy group or a vinyl group,
n represents 1 or 2, and
Rd1 and Rd2 independently represent a single bond, or an alkylene group having 8 or less carbon atoms that may have a hydroxy group as a substituent,
Rd3 and Rd4 independently represent an alkyl group having 8 or less carbon atoms that may have a hydroxy group as a substituent,
Zd1 and Zd2 independently represent a hydrogen atom, an acryloyloxy group, a methacryloyloxy group, a vinyl group, a hydroxy group, a carboxy group, a thiol group or an amino group, provided that at least one of Zd1 or Zd2 represents an acryloyloxy group, a methacryloyloxy group or a vinyl group,
Re1 and Re2 independently represent a single bond or an alkylene group having 8 or less carbon atoms that may have a hydroxy group as a substituent,
Re3 and Re4 independently represent an alkyl group having 8 or less carbon atoms that may have a hydroxy group as a substituent,
Ze1 and Ze2 independently represent a hydrogen atom, an acryloyloxy group, a methacryloyloxy group, a vinyl group, a hydroxy group, a carboxy group, a thiol group or an amino group, provided that at least one of Ze1 or Ze2 represents an acryloyloxy group, a methacryloyloxy group or a vinyl group, and
Xrepresents BF4, PF6, (CF3SO2)2N, CF3SO3, (FSO2)N, C2H5OSO3, (CN)2N, SCN, CH3COO, NO3, Cl, Bror I.