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公开(公告)号：US20240060888A1
公开(公告)日：2024-02-22
申请号：US18266978
申请日：2021-12-15
申请人： SHOWA DENKO K.K
发明人： Yasunao MIYAMURA , Yasushi KADOWAKI , Kuniaki YAMATAKE , Masanao HARA , Shigeru YAMAKI , Hideki OHATA
CPC分类号： G01N21/59 , C08K3/08 , C08K7/06 , C08J5/18 , G01N21/21 , G01N21/8422 , B29C55/06 , C08K2201/011 , C08K2003/0806 , C08J2329/04 , B29K2029/04
摘要： The present method for evaluating an orientation of silver nanowires is a method for measuring an orientation of silver nanowires included in a polyvinyl alcohol film, the method including measuring, using linearly polarized near-infrared light, a first transmittance T1 for polarized light perpendicular to an orientation direction of silver nanowires and a second transmittance T0 for polarized light parallel to the orientation direction of the silver nanowires in a polyvinyl alcohol film including the silver nanowires, and determining an orientation to be high in a case where a ratio (T1/T0) of the first transmittance T1 to the second transmittance T0 is greater than 1, and determining the orientation to be low in a case where the ratio is close to 1.
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公开(公告)号：US20230046460A1
公开(公告)日：2023-02-16
申请号：US17785735
申请日：2020-12-18
申请人： SHOWA DENKO K.K.
发明人： Yasunao MIYAMURA , Yasushi KADOWAKI , Kuniaki YAMATAKE , Masanao HARA , Shigeru YAMAKI , Hideki OHATA
摘要： In a method for producing a high-molecular-weight polymer sheet, when a monomer composition including silver nanowires is polymerized, the monomer composition is allowed to stand in a state in which a thickness direction of the obtained high-molecular-weight polymer sheet before the polymerization is a vertical direction, and the silver nanowires in the monomer composition are oriented in the vertical direction and polymerized.
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公开(公告)号：US20220344072A1
公开(公告)日：2022-10-27
申请号：US17763067
申请日：2020-05-29
申请人： SHOWA DENKO K.K.
发明人： Shigeru YAMAKI , Shuhei YONEDA
摘要： Provided is a transparent conducting film containing metal nanowires, the conducting film having a preferable optical property, electrical property, and having almost no in-plane resistance anisotropy.
A method for producing a transparent conducting film provided with a conducting layer containing a metal nanowire and a binder resin, comprising steps of: preparing a coating liquid containing the metal nanowire and the binder resin, and coating the coating liquid on one main face of a transparent substrate, the coating step being performed by a bar-coater with a bar which has a bar surface constituted by a material having a friction coefficient of 0.05 to 0.45, wherein when the coating liquid is coated on one main face of the transparent substrate by the bar, a relative moving velocity (coating velocity) V (mm/sec) of the transparent substrate relative to the bar satisfies 2000≥V≥350, a groove formed on the bar has a pitch (P) and a depth (H) which satisfy a ratio P/H of 9 to 30, and on the bar surface, the groove is formed to be inclined in a way so that an angle between the longitudinal direction of the bar and a direction that the groove is formed is in a range of 60° to 88°.-
公开(公告)号：US20220139591A1
公开(公告)日：2022-05-05
申请号：US17431496
申请日：2020-02-17
申请人： SHOWA DENKO K.K.
发明人： Shigeru YAMAKI , Shuhei YONEDA , Masahiko TOBA
摘要： Provided is a transparent conductive film having a preferable optical property and an electric property, and in addition, a superior durability of folding. A transparent conductive film comprising: a transparent substrate, a transparent conductive layer having a binder resin and conductive fibers and formed on at least one of the main faces of the transparent substrate, and a protective layer formed on the transparent conductive layer, wherein the protective layer is a cured layer of a curable resin composite and has a thickness of more than 100 nm and 1 μm or less.
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公开(公告)号：US20180281073A1
公开(公告)日：2018-10-04
申请号：US15764423
申请日：2016-09-27
申请人： SHOWA DENKO K.K.
发明人： Masanao HARA , Shigeru YAMAKI , Hiroshi UCHIDA
摘要： A method for producing metal nanowire of small diameter and long length. In the method for producing a metal nanowire, a first solution containing an ionic derivative and a polyol as a solvent are kept at 80-200° C., and a second solution containing a metal salt and a polyol as a solvent is supplied into the first solution so that the ratio between the number of moles of metal atoms in the metal salt supplied in one minute and the total number of moles of halogen atoms in the ionic derivative in the first solution (the number of moles of metal atoms in the metal salt supplied in one minute/the total number of moles of halogen atoms in the ionic derivative) is less than 10. It is preferable that the ionic derivative is a quaternary ammonium halide and the metal salt is silver nitrate.
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公开(公告)号：US20230027915A1
公开(公告)日：2023-01-26
申请号：US17785610
申请日：2020-12-18
申请人： SHOWA DENKO K.K
发明人： Yasunao MIYAMURA , Yasushi KADOWAKI , Kuniaki YAMATAKE , Masanao HARA , Shigeru YAMAKI , Hideki OHATA
摘要： The present invention provides a production method of a polymerized polymer containing a silver nanowire, including a preparation step of preparing a monomer composition containing the silver nanowire, a polymerization step of performing polymerization of the monomer composition containing the silver nanowire, and a standing step of leaving the monomer composition to stand which is performed between the preparation step and the polymerization step, in which a start of the polymerization step is determined in the standing step based on an orientation state in a vertical direction of the silver nanowire in the monomer composition as an index.
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公开(公告)号：US20230025211A1
公开(公告)日：2023-01-26
申请号：US17785527
申请日：2020-12-18
申请人： SHOWA DENKO K.K.
发明人： Yasunao MIYAMURA , Yasushi KADOWAKI , Kuniaki YAMATAKE , Masanao HARA , Shigeru YAMAKI , Hideki OHATA
IPC分类号： G01N21/21 , G01N21/958
摘要： An evaluation method includes a step of disposing a sensitive color plate between two polarization plates disposed in a crossed Nicols shape, a step of disposing a measurement material that is a transparent material containing a nanowire between any of one polarization plate or the other polarization plate of the polarization plates and the sensitive color plate, a step of making white light incident from a side of one of the disposed polarization plates, a step of observing a color of the measurement material from a side of the other polarization plate, and a step of evaluating an orientation direction of the nanowire from the color of the measurement material obtained by observation.
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公开(公告)号：US20220371310A1
公开(公告)日：2022-11-24
申请号：US17769930
申请日：2020-10-13
申请人： SHOWA DENKO K.K.
发明人： Shigeru YAMAKI , Shuhei YONEDA
IPC分类号： B32B37/02 , B32B7/027 , B32B7/12 , B32B7/06 , B32B15/02 , B32B15/085 , B32B27/36 , B32B38/00
摘要： Provided are a transparent conducting film laminate capable of controlling a curl during and after the heating, and a processing method thereof. A transparent conducting film laminate comprising a transparent conducting film 10, and a carrier film 1 stacked on the transparent conducting film 10, wherein the carrier film is a polycarbonate film having no adhesive agent layer, the transparent conducting film 10 comprises a transparent resin film 2, a transparent conducting layer 3 containing metal nanowires and a binder resin, and an overcoat layer 4 stacked in this order, the transparent resin film 2 is made of an amorphous cycloolefin-based resin, and the carrier film to be releasably stacked on a main face of the transparent conducting film 2, the main face being opposite to the face on which the transparent conducting layer 3 is stacked.
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公开(公告)号：US20220230774A1
公开(公告)日：2022-07-21
申请号：US17615429
申请日：2019-12-24
申请人： SHOWA DENKO K.K.
发明人： Shigeru YAMAKI , Shuhei YONEDA
摘要： Provided are a transparent conducting film laminate to which a curl generated during a heating step and after the heating step can be controlled, and a method for processing the same. A transparent conducting film laminate comprises a transparent conducting film 20 and a carrier film 10 stacked thereon, wherein the transparent conducting film 20 comprises a transparent resin film 3, transparent conducting layer 4, and an overcoat layer 5 stacked in this order, the transparent resin film 3 having a thickness T1 of 5 to 25 μm and being made of an amorphous cycloolefin-based resin, the carrier film 10 is releasably stacked on the other main face, the face opposite to the face having the transparent conducting layer 4, of the transparent resin film 3 with an adhesive agent layer 2 therebetween, and a protection film 1 has a thickness T2 which is 5 times or more of the thickness T1 of the transparent resin film 3 and is 150 μm or less, and is made of polyester having an aromatic ring in its molecular backbone.
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公开(公告)号：US20230119637A1
公开(公告)日：2023-04-20
申请号：US17595961
申请日：2021-05-18
申请人： SHOWA DENKO K.K.
发明人： Shigeru YAMAKI , Shuhei YONEDA
IPC分类号： C09J133/08 , H01B5/14 , H01B1/22 , C08K7/06 , C08K3/08
摘要： Provided is a transparent conducting film having a preferable optical property, a preferable electrical property, and further, a superior durability of folding. The transparent conducting film comprises a transparent substrate and a transparent conducting layer formed on at least one of main faces of the transparent substrate, wherein the transparent conducting layer contains a binder resin and a conducting fiber, a cut portion of the transparent conducting film has a straightness of 0.050 mm or less. Preferably, the transparent substrate is a resin film having an elongated resin film or cut out from an elongated film, and can be folded in with a folding axis in the direction perpendicular to the longitudinal direction of the elongated resin film.
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