Electro-conductive member for electrophotography, process cartridge, and electrophotographic apparatus

摘要

An electro-conductive member for electrophotography, including an electro-conductive mandrel and an electro-conductive layer; and a process cartridge and an electrophotographic apparatus using the same. The layer contains a binder resin having a sulfo or a quaternary ammonium group as an ion exchange group, and an ion opposite in polarity to the ion exchange group. The resin has any one of structures represented by formulas (1)-1 and (1)-2, and any one of structures represented by formulas (2)-1 to (2)-3; and the resin has a molecular structure preventing occurrence of a matrix-domain structure. M represents an integer of 2-20, n represents an integer of 5-50, p represents an integer of 1-25, q represents an integer of 1-15, and r represents an integer of 1-12.
—(CF2)m—  Formula (1)-1—(CF2—CF2—O)n—  Formula (1)-2—(CH2—CH2—O)p—  Formula (2)-1—(CH2—CHCH3—O)q—  Formula (2)-2—(CH2—CH2—CH2—CH2—O)r—  Formula (2)-3

主权项

1. An electro-conductive member for electrophotography, comprising:
an electro-conductive mandrel; and an electro-conductive layer, wherein: the electro-conductive layer comprises a binder resin having, in a molecule thereof, a sulfo group or a quaternary ammonium group as an ion exchange group, and an ion opposite in polarity to the ion exchange group; wherein: the binder resin comprises any structure selected from the group consisting of structures represented by a chemical formula (1)-1 and a chemical formula (1)-2, and any structure selected from the group consisting of structures represented by a chemical formulae (2)-1 to a chemical formula (2)-3; and wherein: the binder resin has a molecular structure preventing occurrence of a matrix-domain structure based on the binder resin in the electro-conductive layer:
—(CF2)m—  Formula (1)-1—(CF2—CF2—O)n—  Formula (1)-2—(CH2—CH2—O)p—  Formula (2)-1—(CH2—CHCH3—O)q—  Formula (2)-2—(CH2—CH2—CH2—CH2—O)r—  Formula (2)-3 in the formula (1)-1, m represents an integer of 2 or more and 20 or less, in the formula (1)-2, n represents an integer of 5 or more and 50 or less, in the formula (2)-1, p represents an integer of 1 or more and 25 or less, in the formula (2)-2, q represents an integer of 1 or more and 15 or less, and in the formula (2)-3, r represents an integer of 1 or more and 12 or less.