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US 2020/0341391 A1Published application
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsRyoichi Tokimitsu, Koichi Nakata, Haruki Mori, Shubun Kujirai
Life of this patent
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Abstract
Provided is an electrophotographic photosensitive member including a support and a surface layer, wherein the surface layer contains a copolymer of a composition containing a specific hole transporting compound and a specific compound.
Claims8
An electrophotographic photosensitive member comprising a support and a surface layer,
- wherein the surface layer contains a copolymer of a composition containing a hole transporting compound represented by the following Formula (1) and a compound represented by the following Formula (3),
- in Formula (1), Ar11 to Ar13 each independently represent a substituted or unsubstituted phenyl group,
- at least one of the phenyl groups represented by Ar11 to Ar13 has a group represented by the following Formula (2) as a substituent, and
- the substituent which may be included in the phenyl group is an alkyl group, an alkoxy group, or the group represented by the following Formula (2);
- in Formula (2), R21 represents a hydrogen atom or a methyl group, R22 represents an alkylene group having 1 or more and 6 or less carbon atoms, and n represents 0 or 1;
- and
- in Formula (3), R31 and R32 each independently represent an alkyl group having 1 or more and 4 or less carbon atoms or a substituted or unsubstituted aryl group,
- a substituent which may be included in the aryl group is an alkyl group having 4 or less carbon atoms,
- R31 and R32 may be bonded to each other to form a ring,
- R33 represents an alkyl group having 1 or more and 4 or less carbon atoms,
- R34 and R35 each independently represent a hydrogen atom or a methyl group, and
- R36 and R37 each independently represent an alkylene group having 1 or more and 4 or less carbon atoms.
9 more elements
An electrophotographic apparatus comprising an electrophotographic photosensitive member, a charging unit, an exposing unit, a developing unit, and a transfer unit,
- wherein the electrophotographic photosensitive member includes a support and a surface layer, and
- the surface layer contains a copolymer of a composition containing a hole transporting compound represented by the following Formula (1) and a compound represented by the following Formula (3),
- in Formula (1), Ar11 to Ar13 each independently represent a substituted or unsubstituted phenyl group,
- at least one of the phenyl groups represented by Ar11 to Ar13 has a group represented by the following Formula (2) as a substituent, and
- the substituent which may be included in the phenyl group is an alkyl group, an alkoxy group, or the group represented by the following Formula (2);
- in Formula (2), R21 represents a hydrogen atom or a methyl group, R22 represents an alkylene group having 1 or more and 6 or less carbon atoms, and n represents 0 or 1;
- and
- in Formula (3), R31 and R32 each independently represent an alkyl group having 1 or more and 4 or less carbon atoms or a substituted or unsubstituted aryl group,
- a substituent which may be included in the aryl group is an alkyl group having 4 or less carbon atoms,
- R31 and R32 may be bonded to each other to form a ring,
- R33 represents an alkyl group having 1 or more and 4 or less carbon atoms,
- R34 and R35 each independently represent a hydrogen atom or a methyl group, and
- R36 and R37 each independently represent an alkylene group having 1 or more and 4 or less carbon atoms.
10 more elements
A process cartridge integrally supporting an electrophotographic photosensitive member and at least one unit selected from the group consisting of a charging unit, a developing unit, a transfer unit, and a cleaning unit, and being detachably attachable to a main body of an electrophotographic apparatus,
- wherein the electrophotographic photosensitive member includes a support and a surface layer, and
- the surface layer contains a copolymer of a composition containing a hole transporting compound represented by the following Formula (1) and a compound represented by the following Formula (3),
- in Formula (1), Ar11 to Ar13 each independently represent a substituted or unsubstituted phenyl group,
- at least one of the phenyl groups represented by Ar11 to Ar13 has a group represented by the following Formula (2) as a substituent, and
- the substituent which may be included in the phenyl group is an alkyl group, an alkoxy group, or the group represented by the following Formula (2);
- in Formula (2), R21 represents a hydrogen atom or a methyl group, R22 represents an alkylene group having 1 or more and 6 or less carbon atoms, and n represents 0 or 1;
- and
- in Formula (3), R31 and R32 each independently represent an alkyl group having 1 or more and 4 or less carbon atoms or a substituted or unsubstituted aryl group,
- a substituent which may be included in the aryl group is an alkyl group having 4 or less carbon atoms,
- R31 and R32 may be bonded to each other to form a ring,
- R33 represents an alkyl group having 1 or more and 4 or less carbon atoms,
- R34 and R35 each independently represent a hydrogen atom or a methyl group, and
- R36 and R37 each independently represent an alkylene group having 1 or more and 4 or less carbon atoms.
10 more elements
Dependencies are inferred from the claim text.