Back to results
US 10,197,930 B2Granted
Electrophotographic member, process cartridge, and electrophotographic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsMasaki Yamada, Takanori Kaihara, Takashi Koyanagi, Sosuke Yamaguchi
Life of this patent
Estimating the term…
Abstract
Provided is an electrophotographic member which hardly undergoes deformation even when subjected to a load over a long period of time under a high-temperature and high-humidity environment and thus can stably form a high-quality electrophotographic image. The electrophotographic member includes: an electroconductive substrate; and an electroconductive resin layer on the substrate, in which the resin layer contains a cation having a specific structure and a specific anion.
Claims15
An electrophotographic member, comprising:
- an electroconductive substrate;
- and
- an electroconductive resin layer on the substrate, wherein
- the resin layer comprises a mixture of (i) a binder resin, (ii) an anion comprising at least one of a fluoroalkylsulfonylimide anion or a fluorosulfonylimide anion, and (iii) a cation selected from the group consisting of formulae (1) to (6)
- A11-R101- A12 (1)
- where A11 and A12 independently represent any of formulae (A101) to (A106), and R101 represents a linking group having a straight chain moiety of 4 or more carbon atoms, the linking group making a distance corresponding to a straight chain of 4 or more carbon atoms between A11 and A12;
- where A13 and A14 independently represent any of formulae (A101) to (A106), R102 and R103 independently represent a divalent hydrocarbon group having 1 to 4 carbon atoms, R104 represents a monovalent hydrocarbon group having 1 to 4 carbon atoms, and d1 represents an integer of 0 or 1;
- where A15 and A16 independently represent any of formulae (A101) to (A106), R105 and R106 independently represent a divalent hydrocarbon group having 1 to 4 carbon atoms, R107 represents a monovalent hydrocarbon group having 1 to 4 carbon atoms, and d2 represents an integer of 0 or 1;
- A17-R108O—R109n1A18 (4)
- where A17 and A18 independently represent any of formulae (A101) to (A106), n1 represents an integer of 1 to 4, and R108 and R109 constitute a part of a linking group for making a distance corresponding to a straight chain formed of at least 4 carbon atoms and 1 oxygen atom between A17 and A18, and independently represent a divalent hydrocarbon group having 2 to 4 carbon atoms;
- where A19 and A20 independently represent any of formulae (A101) to (A106), R112 represents a hydrogen atom, or a monovalent hydrocarbon group having 1 to 4 carbon atoms, and R110 and R111 constitute a part of linking group for binding A19 and A20, and independently represent a divalent hydrocarbon group having 2 to 4 carbon atoms, for making a distance corresponding to a straight chain of at least 2 carbon atoms between each of A19 and A20, and a nitrogen atom;
- where A21 to A23 independently represent any of formulae (A101) to (A106), and R113 to R115 constitute a part of a linking group for binding A21 to A23, and independently represent a divalent hydrocarbon group having 2 to 4 carbon atoms, for making a distance corresponding to a straight chain of at least 2 carbon atoms between each of A21 to A23, and a nitrogen atom;
- where R116 to R118 independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, and symbol “*” represents a bonding site with any of formulae (1) to (6);
- where R119 and R120 independently represent a hydrocarbon group needed for forming a nitrogen-containing heteroaromatic six-membered ring in formula (A102), R121′s independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, d3 represents an integer of from 0 to 2, and symbol “*” represents a bonding site with any of formulae (1) to (6);
- where R122 and R123 independently represent a hydrocarbon group needed for forming a nitrogen-containing heteroaromatic five-membered ring in formula (A103), R124 represents a hydrogen atom, or a monovalent hydrocarbon group having 1 to 12 carbon atoms, R125′s independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, d4 represents an integer of from 0 to 2, and symbol “*” represents a bonding site with any of formulae (1) to (6);
- where R126 represents a hydrocarbon group needed for forming a nitrogen-containing heteroaromatic ring in formula (A104), R127′s independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, d5 represents an integer of from 0 to 2, and symbol “*” represents a bonding site with any of formulae (1) to (6);
- where R128 represents a hydrocarbon group needed for forming a nitrogen-containing heterocyclic nonaromatic ring in formula (A105), R129 represents a hydrogen atom, or a monovalent hydrocarbon group having 1 to 12 carbon atoms, R130′s independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, d6 represents an integer of from 0 to 2, and symbol “*” represents a bonding site with any of formulae (1) to (6);
- and
- where R131 and R132 independently represent a hydrocarbon group needed for forming a nitrogen-containing heterocyclic nonaromatic ring in formula (A106), R133 and R134 independently represent a hydrogen atom, or a monovalent hydrocarbon group having 1 to 12 carbon atoms, R135′s independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, d7 represents an integer of from 0 to 2, and symbol “*” represents a bonding site with any of formulae (1) to (6).
16 more elements
An electrophotographic member, comprising:
- an electroconductive substrate;
- and
- an electroconductive resin layer on the substrate, wherein
- the resin layer contains (i) an anion comprising at least one of a fluoroalkylsulfonylimide anion or a fluorosulfonylimide anion, and (ii) a resin having a structure selected from the group consisting of formulae (7) to (12) in a molecule
- E11-R201-E12 (7)
- where E11and E12 independently represent any of formulae (E101) to (E106), and R201 represents a linking group having a straight chain moiety of 4 or more carbon atoms, the linking group making a distance corresponding to a straight chain of 4 or more carbon atoms between E11 and E12;
- where E13 and E14 independently represent any of formulae (E101) to (E106), R202 and R203 independently represent a divalent hydrocarbon group having 1 to 4 carbon atoms, R204represents a monovalent hydrocarbon group having 1 to 4 carbon atoms, and d8 represents an integer of 0 or 1;
- where E15 and E16 independently represent any of formulae (E101) to (E106), R205 and R206 independently represent a divalent hydrocarbon group having 1 to 4 carbon atoms, R207 represents a monovalent hydrocarbon group having 1 to 4 carbon atoms, and d9 represents an integer of 0 or 1;
- where E17 and E18 independently represent any of formulae (E101) to (E106), n2 represents an integer of 1 to 4 and R208 and R209 constitute a part of a linking group for making a distance corresponding to a straight chain formed of at least 4 carbon atoms and 1 oxygen atom between E17 and E18, and independently represent a divalent hydrocarbon group having 2 to 4 carbon atoms;
- where E19 and E20 independently represent any of formulae (E101) to (E106), R212 represents a hydrogen atom, or a monovalent hydrocarbon group having 1 to 4 carbon atoms, and R210 and R211constitute a part of a linking group for binding E19 to E20, and independently represent a divalent hydrocarbon group having 2 to 4 carbon atoms, for making a distance corresponding to a straight chain of at least 2 carbon atoms between each of E19 and E20, and a nitrogen atom;
- where E21 to E23 independently represent any of formulae (E101) to (E106), and R213 to R215 constitute a part of a linking group for binding E21 to E23, and independently represent a divalent hydrocarbon group having 2 to 4 carbon atoms, for making a distance corresponding to a straight chain of at least 2 carbon atoms between each of E21 to E23, and a nitrogen atom;
- where X1 to X3 independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, or a bonding site with the resin, at least one of X1 to X3 represents a bonding site with the resin, and symbol “*” represents a bonding site with any of formulae (7) to (12);
- where R216 and R217 independently represent a hydrocarbon group needed for forming a nitrogen-containing heteroaromatic six-membered ring in formula (E102), X4′s independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, or a bonding site with the resin, d10 represents an integer of 1 or 2, at least one of X4′s represents a bonding site with the resin, and symbol “*” represents a bonding site with any of formulae (7) to (12);
- where R218 and R219 independently represent a hydrocarbon group needed for forming a nitrogen-containing heteroaromatic five-membered ring in formula (E103), X5 represents a hydrogen atom, a monovalent hydrocarbon group having 1 to 12 carbon atoms, or a bonding site with the resin, X6′s independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, or a bonding site with the resin, d11 represents an integer of from 0 to 2, at least one of X5 and X6′s represents a bonding site with the resin, and symbol “*” represents a bonding site with any of formulae (7) to (12);
- where R220 represents a hydrocarbon group needed for forming a nitrogen-containing heteroaromatic ring in formula (E104), X7′s independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, or a bonding site with the resin, d12 represents an integer of 1 or 2, at least one of X7′s represents a bonding site with the resin, and symbol “*” represents a bonding site with any of formulae (7) to (12);
- where R221 represents a hydrocarbon group needed for forming a nitrogen-containing heterocyclic nonaromatic ring in formula (E105), X8 represents a hydrogen atom, a monovalent hydrocarbon group having 1 to 12 carbon atoms, or a bonding site with the resin, X9′s independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, or a bonding site with the resin, d13 represents an integer of from 0 to 2, at least one of X8 and X9′s represents a bonding site with the resin, and symbol “*” represents a bonding site with any of formulae (7) to (12);
- and
- where R222 and R223 independently represent a hydrocarbon group needed for forming a nitrogen-containing heterocyclic nonaromatic ring in formula (E106), X10 and X11 independently represent a hydrogen atom, a monovalent hydrocarbon group having 1 to 12carbon atoms, or a bonding site with the resin, X12′s independently represent a monovalent hydrocarbon group having 1 to 12 carbon atoms, or a bonding site with the resin, d14 represents an integer of from 0 to 2, at least one of X10 to X12′s represents a bonding site with the resin, and symbol “*” represents a bonding site with any of formulae (7) to (12).
15 more elements
Dependencies are inferred from the claim text.