Abstract: A heat insulating member includes a heat insulating layer containing: a porous structure that has a plurality of particles connected to form a skeleton, has pores in an inside, and has a hydrophobic site on at least a surface between the surface and the inside; infrared shielding particles; and inorganic fibers, the heat insulating layer satisfying the following conditions (a) to (d) with a total mass of the heat insulating layer as 100% by mass. (a) A content of the inorganic fibers is 5% by mass or more and 25% by mass or less. (b) A content of the infrared shielding particles is 10% by mass or more. (c) A total content of the porous structure and the infrared shielding particles is 70% by mass or more. (d) A ratio of a content of the porous structure to the content of the infrared shielding particles is 1.2 or more.

Abstract: There is provided a conductive roller for electrophotographic equipment in which a shaft made of core metal has excellent rust resistance. The conductive roller includes a shaft made of core metal, a protective layer formed on the outer periphery of the shaft, and a conductive rubber elastic layer formed on the outer periphery of the protective layer. In a conductive roller for electrophotographic equipment, the conductive rubber elastic layer contains a rubber containing halogen atoms, and the protective layer is formed of a crosslinked material of a composition containing a material obtained by melting and mixing the following components (a) to (c): (a) a polyfunctional maleimide compound having two or more maleimide groups; (b) a benzoxazine compound; and (c) an epoxy resin.

Abstract: There is provided a conductive roller for electrophotographic equipment in which a shaft made of core metal has excellent rust resistance. The conductive roller includes a shaft made of core metal, a protective layer formed on the outer periphery of the shaft, and a conductive rubber elastic layer formed on the outer periphery of the protective layer. In a conductive roller for electrophotographic equipment, the conductive rubber elastic layer contains a rubber containing halogen atoms, and the protective layer is formed of a crosslinked material of a composition containing a material obtained by melting and mixing the following components (a) to (c): (a) a polyfunctional maleimide compound having two or more maleimide groups; (b) a benzoxazine compound; and (c) an epoxy resin.

Abstract: The disclosure provides a charging roll for excellent image quality electrophotographic equipment. This charging roll for electrophotographic equipment is provided with a shaft body, an elastic body layer formed on the outer periphery of the shaft body, and a surface layer formed on the outer periphery of the elastic body layer, wherein the surface layer contains a modifier having polyamide and a hydroxyl group, and has a Bénard cell with a height of 0.1 to 1.0 ?m on the surface thereof. A fluorine-based modifier having a hydroxyl group, a silicone-based modifier having a hydroxyl group, and an acrylic modifier having a hydroxyl group can be cited as examples of the modifier having the hydroxyl group.

Abstract: The disclosure provides a charging roll for excellent image quality electrophotographic equipment. This charging roll for electrophotographic equipment is provided with a shaft body, an elastic body layer formed on the outer periphery of the shaft body, and a surface layer formed on the outer periphery of the elastic body layer, wherein the surface layer contains a modifier having polyamide and a hydroxyl group, and has a Bénard cell with a height of 0.1 to 1.0 ?m on the surface thereof. A fluorine-based modifier having a hydroxyl group, a silicone-based modifier having a hydroxyl group, and an acrylic modifier having a hydroxyl group can be cited as examples of the modifier having the hydroxyl group.

Abstract: An endless belt for an electrophotographic device having high degrees of flexibility and wear resistance in a surface portion of the elastic layer is provided. The endless belt for an electrophotographic device, includes a base layer, and an elastic layer which is formed on a surface of the base layer, by using a rubber composition including at least one rubber material and at least one inorganic filler in which the elastic layer has 40-75% by mass of a total organic component, and a product P of an indentation Young's modulus (MPa) ? and a fracture strain (%) ? that is within a range of 6000-50000.

Abstract: An endless belt for use as an intermediate transfer belt or a transfer-sheet transfer belt in an electrophotographic apparatus using electrophotographic technologies such as a full-color LBP (Laser Beam Printer) or a full-color PPC (Plane Paper Copier). At least a base layer of the belt comprises a modified polyamide imide resin formed by copolymerizing: (A) an aromatic isocyanate compound; (B) an aromatic polycarboxylic acid anhydride; and (C) a polymer having carboxylic acids at both terminals thereof.

Abstract: An endless belt for use as an intermediate transfer belt or a transfer-sheet transfer belt in an electrophotographic apparatus using electrophotographic technologies such as a full-color LBP (Laser Beam Printer) or a full-color PPC (Plane Paper Copier). At least a base layer of the belt comprises a modified polyamide imide resin formed by copolymerizing: (A) an aromatic isocyanate compound; (B) an aromatic polycarboxylic acid anhydride; and (C) a polymer having carboxylic acids at both terminals thereof.