Patent application number | Description | Published |
20090258275 | POLYMER ELECTROLYTE, POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - Provided is a polymer electrolyte including a triblock copolymer having: a segment A which has a glass transition temperature of 40° C. or lower, and is ion conductive; and a segment B which has a glass transition temperature of 70° C. or higher, and is non-ion conductive, the segment A and the segment B being connected in a sequence of B-A-B, wherein a weight fraction W | 10-15-2009 |
20100021788 | POLYMER ELECTROLYTE COMPOSITE FILM, MEMBRANE-ELECTRODE ASSEMBLY AND FUEL CELL - The invention provides a polymer electrolyte composite film which is superior in membrane properties and membrane strength and can achieve high proton conductivity, and a membrane-electrode assembly and a fuel cell which use the membrane. The polymer electrolyte composite film contains a block copolymer including a hydrophilic block and a hydrophobic block, and a solid acid, and has a microphase separation structure including a hydrophilic domain formed from the hydrophilic block and a hydrophobic domain formed from the hydrophobic block. The solid acid is localized in the hydrophilic domain. | 01-28-2010 |
20100147796 | METAL STRUCTURAL BODY-CONTAINING POLYMER FILM, METHOD FOR MANUFACTURING METAL STRUCTURAL BODY-CONTAINING POLYMER FILM, AND METHOD FOR MANUFACTURING PATTERNED STRUCTURAL BODY - A method for manufacturing a patterned structural body by which a patterned structural body having a micropattern can be manufactured, a metal structural body-containing polymer film that can be used in the manufacture of the patterned structural body, and a method for manufacturing the polymer film are provided. The metal structural body-containing polymer film comprises a polymer film that includes a block copolymer having an ion-conductive segment and a non-ion-conductive segment and has a microphase-separated structure including ion-conductive domains and non-ion-conductive domains, and a metal structural body localized at the ion-conductive domains. | 06-17-2010 |
20110070522 | ION-CONDUCTIVE POLYMERIC COMPOSITE MEMBRANE, MEMBRANE-ELECTRODE ASSEMBLY, FUEL CELL, AND PROCESS FOR PRODUCING ION-CONDUCTIVE POLYMERIC COMPOSITE MEMBRANE - An ion-conductive polymer composite membrane is provided which has both high gas barrier properties and high protonic conductivity. The ion-conductive polymer composite membrane includes an ion-conductive polymer and ion-conductive materials. The ion-conductive materials each include i) an inorganic layered structure including a plurality of layers formed of an inorganic compound and ii) a sulfobetaine-type or hydroxysulfobetaine-type ampholytic surfactant. The ampholytic surfactant is present between the layers formed of an inorganic compound. The present invention further provides a membrane-electrode assembly and a fuel cell which use the ion-conductive polymer composite membrane, and a process for producing the ion-conductive polymer composite membrane. | 03-24-2011 |
20110111170 | BLOCK COPOLYMER FILM AND METHOD OF PRODUCING THE SAME - Provided is a block copolymer film in which a microphase separation structure formed by a block copolymer is arranged perpendicularly to the film surface, and all components forming the block copolymer are uncovered to the film surface, whereby the microphase separation structure penetrates the film surface. A method of producing the block copolymer film includes the steps of extruding a melt of the block copolymer in one direction by extrusion molding or injection molding, cooling the extruded block copolymer to a temperature equal to or lower than glass transition temperatures of polymer components in the block copolymer to provide a prismatic or cylindrical extrusion molded product, and cutting the prismatic or cylindrical extrusion molded product in the direction perpendicular to the extrusion direction. | 05-12-2011 |
20120020700 | ELECTROCONDUCTIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - Provided is an electroconductive member that can demonstrate stable performance for a long period of time with an electric resistance value being hardly changed even by electrical conduction for a long period of time. | 01-26-2012 |
20120027456 | ELECTRO-CONDUCTIVE MEMBER FOR ELECTROPHOTOGRAPHY, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is the following electro-conductive member for electrophotography. The electrical resistance of the member hardly increases even by long-term energization, and hence the member is conducive to stable formation of high-quality electrophotographic images. The electro-conductive member for electrophotography, comprises: an electro-conductive mandrel and an electro-conductive layer, wherein said electro-conductive layer contains an A-B-A type triblock copolymer in which an A-block is a polystyrene having a cation exchange group, and a B-block is a polyolefin, and wherein said A-B-A type triblock copolymer forms a microphase-separated structure comprising a matrix phase formed of said B-block, and one phase formed of the A-block and having a structure selected from the group consisting of a cylindrical structure, a bicontinuous structure and a lamellar structure. | 02-02-2012 |
20120070188 | ELECTROCONDUCTIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electroconductive member excellent in durability even when applying direct current voltage over a long period of time is provided. Disclosed is an electroconductive member including an electroconductive mandrel and an electroconductive layer, wherein: the electroconductive layer includes a binder resin and an electroconductive metal oxide particle dispersed in the electroconductive layer; the metal oxide particle has a group represented by the following structural formula (1) on the surface of the metal oxide particle; and the group represented by the following structural formula (1) is introduced by substituting a hydrogen atom of a hydroxyl group as a functional group originating from the metal oxide particle, with the group represented by the following structural formula (1): | 03-22-2012 |
20120251171 | CONDUCTIVE MEMBER - Provided is such a conductive member that a change in its electrical resistance value caused by its long-term use is reduced to the extent possible. The conductive member has a conductive support and a conductive layer, the conductive layer contains a rubber composition formed of a modified epichlorohydrin rubber, and the modified epichlorohydrin rubber has a unit represented by the following formula (1). In the formula (1), R1, R2, and R3 each independently represent hydrogen or a saturated hydrocarbon group having 1 to 18 carbon atoms. | 10-04-2012 |
20120263499 | ELECTROPHOTOGRAPHIC ELECTRICALLY CONDUCTIVE MEMBER - The present invention provides an electrophotographic electrically conductive member in which conductivity needed for a charging member is secured, and defects in an image attributed to uneven discharging can be minimized independently of a long-term use and an environment of use. An electrophotographic electrically conductive member comprising an electrically conductive support and an electrically conductive layer, wherein the electrically conductive layer includes an ion conductive resin having a quaternary ammonium ion in a molecule structure as a binder resin, and a carrier molecule represented by the following formula (1) or (2): | 10-18-2012 |
20120281998 | IONIC ELECTRO-CONDUCTIVE RESIN AND ELECTRO-CONDUCTIVE MEMBER FOR ELECTROPHOTOGRAPHY - Provided is an electro-conductive member for electrophotography that stably shows high electro-conductivity even under a low-temperature, low-humidity environment. The electro-conductive member for electrophotography has an electro-conductive mandrel and an electro-conductive layer. The electro-conductive layer contains an ionic electro-conductive resin and an ion carrier. The ionic electro-conductive resin has at least one structure selected from the group consisting of structures represented by the following formulae (1), (2), (3), and (4), and a structure represented by the following formula (5) (in the formula (1) to the formula (5), R | 11-08-2012 |
20120308261 | CONDUCTIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is a conductive member for electrophotography whose electrical resistance hardly increases even by long-term application of a high voltage. The conductive member for electrophotography is a conductive member for electrophotography, including: a conductive support; and a conductive elastic layer, in which: the elastic layer contains an A-B-A type block copolymer constituted of a non-ion conducting block (A block) and an ion conducting block (B block) having an ion exchange group; the block copolymer forms a microphase-separated structure; and the A block forms any structure selected from the group consisting of a spherical structure, a cylindrical structure, and a bicontinuous structure, and the B block forms a matrix for the structure. | 12-06-2012 |
20130236213 | ELECTRO-CONDUCTIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - To suppress an excessive reduction in resistance of an electro-conductive roller under an H/H environment and reduce a resistance value thereof under an L/L environment, provided is an electro-conductive member for electrophotography, comprising: an electro-conductive mandrel; and an electro-conductive layer provided on a periphery of the mandrel, wherein the electro-conductive layer contains a binder resin having an alkylene oxide structure, and a sulfo or a quaternary ammonium group as an ion exchange group, and an ion having polarity opposite to polarity of the ion exchange group, a water content of the electro-conductive layer under a temperature of 30° C. and a relative humidity of 80% is 10 mass % or less, and a spin-spin relaxation time of the electro-conductive layer, which is determined by pulse NMR measurement with a hydrogen core being a measurement core under a temperature of 15° C. and a relative humidity of 10%, is 200 μsec or more. | 09-12-2013 |
20130279936 | ELECTRICALLY CONDUCTING MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - To provide an electrically conducting member for electrophotography which can not easily come to change in electrical resistance value even upon application of direct current and also has made any ion conducting agent kept from bleeding. The electrically conducting member has an electrically conducting substrate and an electrically conducting layer; the electrically conducting layer containing an epichlorohydrin rubber having in the molecular structure at least an alkylene oxide (AO) unit, an epichlorohydrin (ECH) unit and a unit having a sulfonate ion; the AO unit being at least one unit of an ethylene oxide unit, a propylene oxide unit and a butylene oxide unit; and the AO unit(s) in the rubber being in a content of 5 to 60% by mass in total and the ECH unit in the rubber being in a content of 30% by mass or more. | 10-24-2013 |
20130281275 | ELECTRICALLY CONDUCTING MEMBER FOR ELECTROPHOTOGRAPHY, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - To provide an electrically conducting member for electrophotography that has made itself kept from increasing in electrical resistance with time even in a low temperature and low humidity environment and also has made any ion conducting agent kept from bleeding to its surface. To also provide a process cartridge, and an electrophotographic image forming apparatus, that can stably form high-grade electrophotographic images over a long period of time in a variety of environments. The conductive member for electrophotography has an electrically conducting substrate and an electrically conducting layer, and the electrically conducting layer contains a resin having in the molecule at least one structure selected from structures represented by the formula (1), formula (2) and formula (3) each defined in the specification. The process cartridge and the electrophotographic image forming apparatus each make use of the same. | 10-24-2013 |
20130281276 | ELECTRICALLY CONDUCTIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrically conductive member for electrophotography is provided which has an electrically conductive mandrel and an electrically conductive layer on the peripheral surface of the mandrel; the electrically conductive layer containing a binder resin having as an ion exchange group a sulfo group or a quaternary ammonium salt group in the molecule and an ion with a polarity opposite to that of the ion exchange group; the binder resin further having any structure selected from the group consisting of structures represented by formulas (1)-1 to (1)-3, and any structure selected from the group consisting of structures represented by formulas (2)-1 and (2)-2, and having a molecular structure that prevents any matrix-domain structure from being formed in the electrically conductive layer. | 10-24-2013 |
20130315620 | ELECTRO-CONDUCTIVE MEMBER FOR ELECTROPHOTOGRAPHY, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - 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. | 11-28-2013 |
20140178096 | ELECTROPHOTOGRAPHIC ELECTRICALLY CONDUCTIVE MEMBER - The present invention provides an electrophotographic electrically conductive member in which conductivity needed for a charging member is secured, and defects in an image attributed to uneven discharging can be minimized independently of a long-term use and an environment of use. An electrophotographic electrically conductive member comprising an electrically conductive support and an electrically conductive layer, wherein the electrically conductive layer includes an ion conductive resin having a quaternary ammonium ion in a molecule structure as a binder resin, and a carrier molecule represented by the following formula (1) or (2): | 06-26-2014 |
20140217063 | METAL STRUCTURAL BODY-CONTAINING POLYMER FILM, METHOD FOR MANUFACTURING METAL STRUCTURAL BODY-CONTAINING POLYMER FILM, AND METHOD FOR MANUFACTURING PATTERNED STRUCTURAL BODY - A method for manufacturing a patterned structural body by which a patterned structural body having a micropattern can be manufactured, a metal structural body-containing polymer film that can be used in the manufacture of the patterned structural body, and a method for manufacturing the polymer film are provided. The metal structural body-containing polymer film comprises a polymer film that includes a block copolymer having an ion-conductive segment and a non-ion-conductive segment and has a microphase-separated structure including ion-conductive domains and non-ion-conductive domains, and a metal structural body localized at the ion-conductive domains. | 08-07-2014 |
20140221184 | ELECTROPHOTOGRAPHIC MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic member having a high conductivity and having high adhesiveness to other layer, and a process cartridge and an electrophotographic apparatus using the electrophotographic member as a developer carrying member are provided. | 08-07-2014 |
20140287899 | ELECTROPHOTOGRAPHIC MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic member is provided in which conductivity barely reduces and sufficient conductivity is obtained even under a low temperature and low humidity environment, a reduction in resistance beyond necessity is readily suppressed even under a high temperature and high humidity environment, and the bleeding of the quaternary ammonium salt can be suppressed. There is provided an electrophotographic member including an electroconductive mandrel and an electroconductive layer, wherein the electroconductive layer includes a resin having at least one of a structure represented by the following formula (1) and a structure represented by the following formula (2) in the molecule, and an anion: | 09-25-2014 |
20140327172 | BLOCK COPOLYMER FILM AND METHOD OF PRODUCING THE SAME - Provided is a block copolymer film in which a microphase separation structure formed by a block copolymer is arranged perpendicularly to the film surface, and all components forming the block copolymer are uncovered to the film surface, whereby the microphase separation structure penetrates the film surface. A method of producing the block copolymer film includes the steps of extruding a melt of the block copolymer in one direction by extrusion molding or injection molding, cooling the extruded block copolymer to a temperature equal to or lower than glass transition temperatures of polymer components in the block copolymer to provide a prismatic or cylindrical extrusion molded product, and cutting the prismatic or cylindrical extrusion molded product in the direction perpendicular to the extrusion direction. | 11-06-2014 |