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US 10,280,148 B2Granted
Electroconductive member for electrophotography and quaternary ammonium salt
AssigneeCanon Kabushiki Kaisha
InventorsSatoru Nishioka, Satoru Yamada, Kazuhiro Yamauchi, Yuichi Kikuchi
Life of this patent
Estimating the term…
Abstract
Provided is an electroconductive member for electrophotography in which movement of a quaternary ammonium salt toward the surface of a binder resin is suppressed and which exhibits a less reduction in electroconductivity through electrification. The electroconductive member for electrophotography comprises an electroconductive shaft core and a resin layer, and the resin layer comprises a binder resin and at least one selected from quaternary ammonium salts having structures represented by the formulae (1) to (8).
Claims15
An electroconductive member for electrophotography, comprising:
- an electroconductive shaft core;
- and
- a resin layer-comprising a binder resin and at least one quaternary ammonium salt having a structure represented by one of formulae (1) to (8):
- where n1 represents 2 or 3, XA represents a group having a structure represented by formula (9), and XB represents an electron-donating group or a hydrogen atom;
- where R1 to R3 independently represent a hydrogen atom or a methyl group, R4 and R5 independently represent a methyl group, an ethyl group or a glycidyl group, X− represents an anion, and “a” represents 0 or 1;
- where n2 represents 2 or 3, and XC represents a group having a structure represented by formula (10);
- where R6 to R8 independently represent a hydrogen atom or a methyl group, R9 and R10 independently represent a methyl group, an ethyl group or a glycidyl group, X− represents an anion, and “b” represents 0 or 1;
- where n3 and n5 independently represent 1 or 2, n4 represents 1 or 2, and XD and XE independently represent a group having a structure represented by formula (11);
- where R11 to R13 independently represent a hydrogen atom or a methyl group, R14 and R15 independently represent a methyl group, an ethyl group or a glycidyl group, X− represents an anion, and “c” represents 0 or 1;
- where n6 and n8 independently represent 1 or 2, n7 represents 1 or 2, and XF and XG independently represent a group having a structure represented by formula (12);
- where R16 to R18 independently represent a hydrogen atom or a methyl group, R19 and R20 independently represent a methyl group, an ethyl group or a glycidyl group, X− represents an anion, and “d” represents 0 or 1;
- where “e” represents 1 or 2, and XH and XI independently represent a group having a structure represented by formula (13);
- where R21 to R23 independently represent a hydrogen atom or a methyl group, R24 and R25 independently represent a methyl group, an ethyl group or a glycidyl group, X− represents an anion, and “f” represents 2 or 3;
- where “g” and “h” independently represent 2 or 3, and XJ and XK independently represent a group having a structure represented by formula (14);
- where R26 to R28 independently represent a hydrogen atom or a methyl group, R29 represents a methyl group, an ethyl group or a glycidyl group, and X− represents an anion;
- where “i”, “j”, and “k” independently represent 2 or 3, and XL and XM independently represent a group having a structure represented by formula (15);
- where R30 to R32 independently represent a hydrogen atom or a methyl group, and X− represents an anion;
- where R33 to R35 and R40 to R42 independently represent a hydrogen atom or a methyl group, R36 to R39 independently represent a methyl group, an ethyl group or a glycidyl group, “1” represents an integer of 2 to 12, and X− represents an anion.
15 more elements
An electroconductive member for electrophotography, comprising:
- an electroconductive shaft core;
- and
- a resin layer comprising a binder resin to which a quaternary ammonium salt is fixed, the binder resin being obtained from (i) a compound having at least two functional groups selected from the group consisting of a hydroxyl group, a mercapto group, an amino group and an acid anhydride group, and (ii) at least one quaternary ammonium salt having a structure represented by one of formulae (1) to (8), said quaternary ammonium salt being fixed by a reaction between the functional group in compound (i) and an epoxy group in quaternary ammonium salt (ii):
- where n1 represents 2 or 3, XA represents a group having a structure represented by formula (9), and XB represents an electron-donating group or a hydrogen atom;
- where R1 to R3 independently represent a hydrogen atom or a methyl group, R4 and R5 independently represent a methyl group, an ethyl group or a glycidyl group, X− represents an anion, and “a” represents 0 or 1;
- where n2 represents 2 or 3, and XC represents a group having a structure represented by formula (10);
- where R6 to R8 independently represent a hydrogen atom or a methyl group, R9 and R10 independently represent a methyl group, an ethyl group or a glycidyl group, X− represents an anion, and “b” represents 0 or 1;
- where n3 and n5 independently represent 1 or 2, n4 represents 1 or 2, and XD and XE independently represent a group having a structure represented by formula (11);
- where R11 to R13 independently represent a hydrogen atom or a methyl group, R14 and R15 independently represent a methyl group, an ethyl group or a glycidyl group, X− represents an anion, and “c” represents 0 or 1;
- where n6 and n8 independently represent 1 or 2, n7 represents 1 or 2, and XF and XG independently represent a group having a structure represented by formula (12);
- where R16 to R18 independently represent a hydrogen atom or a methyl group, R19 and R20 independently represent a methyl group, an ethyl group or a glycidyl group, X− represents an anion, and “d” represents 0 or 1;
- where “e” represents 1 or 2, and XH and XI independently represent a group having a structure represented by formula (13);
- where R21 to R23 independently represent a hydrogen atom or a methyl group, R24 and R25 independently represent a methyl group, an ethyl group or a glycidyl group, X− represents an anion, and “f” represents 2 or 3;
- where “g” and “h” independently represent 2 or 3, and XJ and XK independently represent a group having a structure represented by formula (14);
- where R26 to R28 independently represent a hydrogen atom or a methyl group, R29 represents a methyl group, an ethyl group or a glycidyl group, and X− represents an anion;
- where “i”, “j”, and “k” independently represent 2 or 3, and XL and XM independently represent a group having a structure represented by formula (15);
- where R30 to R32 independently represent a hydrogen atom or a methyl group, and X− represents an anion;
- where R33 to R35 and R40 to R42 independently represent a hydrogen atom or a methyl group, R36 to R39 independently represent a methyl group, an ethyl group or a glycidyl group, “1” represents an integer of 2 to 12, and X− represents an anion.
15 more elements
Dependencies are inferred from the claim text.