Electrophotographic member, process cartridge and electrophotographic apparatus
The present invention provides an electrophotographic member having excellent deformation recovery even when stored or used under a high temperature and high humidity environment, which is useful in forming a high-quality electrophotographic image; a process cartridge; and an electrophotographic apparatus. The electrophotographic member of the present invention includes a conductive mandrel and an electro-conductive layer; the electro-conductive layer including a resin synthesized from an ion conducting agent and a compound being able to react with the ion conducting agent; the ion conducting agent including a specific anion and a cation having at least three hydroxyl groups; the compound being able to react with the hydroxyl group.
1. An electrophotographic member comprising an electro-conductive mandrel and an electro-conductive layer, the electro-conductive layer comprising:
at least one anion selected from the group consisting of a fluorinated sulfonate anion, a fluorinated carboxylate anion, a fluorinated sulfonylimide anion, a fluorinated sulfonylmethide anion, a dicyanamide anion, a fluorinated alkylfluoroborate anion, a fluorinated phosphate anion, a fluorinated antimonate anion, a fluorinated arsenate anion, and bis(oxalato)borate anion; and
a resin having at least one cationic structure selected from the group consisting of formulae (1) to (3) and (16) to (18)
where X 1 to X 3 independently represent a structure comprising a portion bonding to a resin through a bond selected from the group consisting of an ether bond, an ester bond and a urethane bond; and R 1 is selected from the group consisting of (a) to (c)
(a) a hydrogen atom;
(b) a hydrocarbon group having 1 to 30 carbon atoms; and
(c) a structure comprising a portion bonding to a resin through a bond selected from the group consisting of an ether bond, an ester bond and a urethane bond;
where R 2 and R 3 are independently selected from the group consisting of (a) to (c); X 4 represents a structure comprising a portion bonding to a resin through a bond selected from the group consisting of an ether bond, an ester bond and a urethane bond; and Y 1 is one of formulae (14) and (15)
where A 1 and A 2 independently represent a hydrocarbon group or an alkylene ether group; and X 17 to X 20 independently represent a structure comprising a portion bonding to a resin through a bond selected from the group consisting of an ether bond, an ester bond and a urethane bond;
where Y 2 and Y 3 independently represent formulae (14) or (15); and R 4 and R 5 independently represent (a) to (c);
where X 15 and X 16 independently represent a structure comprising a portion bonding to a resin through a bond selected from the group consisting of an ether bond, an ester bond and a urethane bond; and R 28 to R 30 independently represent one of (a) to (c), provided that at least one of R 28 to R 30 is (c)
(a) a hydrogen atom;
(b) a hydrocarbon group having 1 to 30 carbon atoms; and
(c) a structure comprising a portion bonding to a resin through a bond selected from the group consisting of an ether bond, an ester bond and a urethane bond;
where Y 10 is formulae (14) or (15); Z 3 , Z 4 and Z 5 independently represent a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms; and R 31 represents a structure comprising a portion bonding to a resin through a bond selected from the group consisting of an ether bond, an ester bond, and a urethane bond, or is formulae (14) or (15); and
where Y 11 is formulae (14) or (15); R 32 is one of (a) to (c), or is formulae (14) or (15); and R 33 to R 35 independently represent one of (a) to (c), provided that at least one of R 33 to R 35 is (c).
2. The electrophotographic member according to claim 1 , wherein the cationic structure comprises at least one of formulae (1) to (3).
3. The electrophotographic member according to claim 1 , wherein the cationic structure comprises at least one of formulae (16) to (18).
4. A process cartridge comprising at least one of a charging member and a developing member, being adapted to be detachably attached to a main body of an electrophotographic apparatus; the charging member or the developing member being the electrophotographic member according to claim 1 .
5. An electrophotographic apparatus comprising an electrophotographic photosensitive member, a charging member and a developing member; the charging member or the developing member being the electrophotographic member according to claim 1 .