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1. 发明专利

JP2011002713A Method of manufacturing conductive polyimide belt 审中-公开
标题翻译：制造导电聚酰亚胺皮带的方法
公开(公告)号：JP2011002713A
公开(公告)日：2011-01-06
申请号：JP2009146717
申请日：2009-06-19
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： WATANABE YOSHINOBU , DOMOTO TADANORI
IPC分类号： G03G15/20 , B29D29/00 , C08K3/04 , C08L79/08 , G03G15/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a conductive polyimide belt to obtain a conductive polyimide belt ensuring good dispersion of carbon black and small variations in an electric resistance value and having a desired electric resistance (surface resistance) even with a small additive amount of carbon black, and which suppresses reduction in the mechanical strength of the belt itself because an additive amount of carbon black can be made small.SOLUTION: The method of manufacturing the conductive polyimide belt uses, as a starting material, a carbon black dispersed polyamic acid solution prepared by dissolving and polymerizing a tetracarboxylic acid dianhydride or a derivative thereof and a diamine component in a dispersion prepared by dispersing carbon black in a solvent, wherein when the dispersion is prepared, the carbon black is dispersed in the presence of a cationic or amphoteric surfactant and a content of the surfactant in the dispersion is ≥2.5 wt.%.
摘要翻译：要解决的问题：为了提供一种制造导电聚酰亚胺带的方法，以获得确保炭黑的良好分散和电阻值的小变化并且具有期望的电阻（表面电阻）的导电聚酰亚胺带，即使使用小的添加剂炭黑的量，并且由于可以使炭黑的添加量变小，因此能够抑制带本身的机械强度的降低。解决方案：导电性聚酰亚胺带的制造方法使用分散的炭黑作为起始原料通过将四羧酸二酐或其衍生物和二胺组分溶解并聚合在通过将炭黑分散在溶剂中制备的分散体中制备的聚酰胺酸溶液，其中当制备分散体时，炭黑在阳离子或两性表面活性剂，分散体中表面活性剂的含量≥2.5重量％。

2. 发明专利

JP2005262729A Seamless belt and manufacturing method therefor 审中-公开
标题翻译：无缝带及其制造方法
公开(公告)号：JP2005262729A
公开(公告)日：2005-09-29
申请号：JP2004080629
申请日：2004-03-19
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： DOMOTO TADANORI
IPC分类号： G03G15/00 , B29C41/04 , B29C41/22 , B29K79/00 , B29L29/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide a polyimide-based seamless belt centrifugally molded in a cylindrical mold, wherein a surface roughness of an inner surface of the belt is controlled and/or wherein functional particles dispersed in the belt are localized on the side of the inner surface of the belt, and a manufacturing method for the seamless belt.
SOLUTION: The seamless belt, which comprises at least a polyimide resin layer constituted by being centrifugally molded in the cylindrical mold, is characterized in that the side of a surface, brought into noncontact with the mold, of the polyimide resin layer is an outer surface of the belt. In the seamless belt, the polyimide resin layer contains the functional particles, and the functional particles are dispersed in the state of leaning to the side of the inner surface of the belt in the thickness direction of the layer. The manufacturing method for the seamless belt comprises: a step of forming the polyimide resin layer by centrifugally molding it in the mold; a step of obtaining the seamless belt having at least the formed polyimide resin layer; and a step of reversing the obtained seamless belt.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种在圆柱形模具中离心模塑的聚酰亚胺基无缝带，其中控制带的内表面的表面粗糙度和/或其中分散在带中的功能性颗粒位于带的内表面侧，以及无缝带的制造方法。解决方案：至少包括通过在圆柱形模具中离心模制而成的聚酰亚胺树脂层的无缝带的特征在于，与聚酰亚胺树脂层不相吻合的表面的一侧与皮带的外表面。在无缝带中，聚酰亚胺树脂层含有功能性粒子，功能性粒子沿着层的厚度方向倾斜到带内表面侧的状态。无缝带的制造方法包括：通过在模具中离心成型来形成聚酰亚胺树脂层的步骤; 获得至少具有形成的聚酰亚胺树脂层的无缝带的步骤; 以及使得到的无缝带倒转的步骤。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004077576A Seamless belt made of polyimide resin 审中-公开
公开(公告)号：JP2004077576A
公开(公告)日：2004-03-11
申请号：JP2002234353
申请日：2002-08-12
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： DOMOTO TADANORI
IPC分类号： G03G21/00 , C08G73/10 , G03G15/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide a seamless belt made of polyimide resin hardly causing waviness (flapping) in a circumferential direction even when it is tensioned and capable of forming a stable image without being influenced by humidity. SOLUTION: The seamless belt made of polyimide resin keeps flatness ≤0.5mm even when it is strongly tensioned by setting tensile load at the time of elongation by 1% in the circumferential direction of the seamless belt to ≥25N, so that the stable image is formed even between rolls. By setting the moisture absorption expansion coefficient of the seamless belt to ≤30PPM/%RH, the stable image is formed against environmental changes. COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2000061313A PHOTOCATALYTIC SHEET STRUCTURE 失效
公开(公告)号：JP2000061313A
公开(公告)日：2000-02-29
申请号：JP25184698
申请日：1998-08-21
申请人： NITTO DENKO CORP
发明人： HIYORI TAKAYUKI , SATO KENJI , DOMOTO TADANORI , ISHIZAKI SATORU , DOI TOMOKO
IPC分类号： B01J31/06 , B01J35/02
摘要： PROBLEM TO BE SOLVED: To maintain a photocatalytic sheet stably for a long period of time by a method wherein a metal-made edge piece is attached to an edge of a mesh shaped photocatalytic sheet wherein a photocatalytic particle-containing resin layer is provided to a surface of a mesh-like supporting base material, and the sheet is formed by bending. SOLUTION: A photocatalytic particle-containing polytetrafluoroethylene burnt layer 12 is provided to a surface of a mesh like supporting base material 11 of, for example, a plain weave glass cloth or the like. Both ends of a width of a band body of the obtained mesh-like photocatalytic sheet 1 are fringed by a metal-made edge piece 2, that is folded in a bellows form, and the bellows body 10 is fixed onto, for example, an aluminum sheet by a suitable means (for example, a click is provided to the aluminum sheet, and the click is folded down by passing through the mesh.). For fringing by the metal made edge piece 2, a metallic tape with a hot melt based adhesive on one side is folded by making an adhesive surface inside along almost a center of the width, that is covered on a width edge of the mesh-like photocatalytic sheet 1, and fixed to the edge of the mesh-like photocatalytic sheet 1 by the hot melt based adhesive by thermally pressurizing with a hot platen.

5. 发明专利

JPH11299874A METHOD FOR PURIFICATION OF AIR IN ROOM 失效
公开(公告)号：JPH11299874A
公开(公告)日：1999-11-02
申请号：JP12422798
申请日：1998-04-16
申请人： NITTO DENKO CORP
发明人： HIYORI TAKAYUKI , DOMOTO TADANORI
IPC分类号： A61L9/00 , A61L9/18 , B01D53/86 , B01J35/02
摘要： PROBLEM TO BE SOLVED: To improve air purification efficiency by installing a mesh-like sheet deposited with photocatalyst particles in a contactless state on the iron-room side of a window pane. SOLUTION: The mesh-like sheet A is formed by depositing the anatase type titanium oxide photocatalyst particles with polytetrafluoroethylene as a binder on a network substrate of glass cloth or the like in such a manner that network roughness of about 1 mm×1 mm, porosity of about 20% and a photocatalyst particle deposition amt. of about 30 g/cm may be attained. The sheet is installed in a contactless state to the in-room side of the glass window apart a spacing of 10 to 80 mm from the window pane. A gaseous acetoaldehyde atmosphere of a concn. of, for example, about 10 ppm is generated in the room of this state. The acetoaldehyde concn. may be reduced by half in about 3 hours when a black light lamp is lighted. The time half that of the case exclusive of this method is enough to purify. The efficiency may thus be improved.

6. 发明专利

JPH1147612A PREPARATION OF PHOTOCATALYST BODY 失效
公开(公告)号：JPH1147612A
公开(公告)日：1999-02-23
申请号：JP21997097
申请日：1997-07-31
申请人： NITTO DENKO CORP
发明人： DOMOTO TADANORI
IPC分类号： B01J35/02 , B01J37/02 , B01J37/08
摘要： PROBLEM TO BE SOLVED: To prepare a photocatalyst body which has a photocatalyst layer on a supporting material and has an excellent oxidative decomposition efficiency by applying a dispersion containing photocatalyst fine particles and a resin powder which is hard to deposit on the photocatalyst fine particles, and heating the applied layer to sinter the contact part between particles of the resin powder. SOLUTION: The photocatalyst body useful for the antimicrobial treatment, the purifying treatment, etc., has the structure that the photocatalyst layer 2 is provided on the support 1. The photocatalyst layer 2 having a fine air layer between resin and photocatalyst fine particles which are dispersed in the calcined layer of polytetrafluoroethylene powder, is prepared by first applying a dispersion containing polytetrafluoroethylene powder and photocatalyst fine particles on the supporting material 1, then removing the solvent in the applied layer by evaporation, then calcining the coated layer thus obtained to sinter and to bind the contact part between particles of the polytetrafluoroethylene powder, and cooling. The calcination is carried out under atmospheric pressure and the viscosity of the molten resin of >=10 poise.

7. 发明专利

JPH1147610A PHOTOCATALYST SHEET AND ITS PREPARATION 失效
公开(公告)号：JPH1147610A
公开(公告)日：1999-02-23
申请号：JP21996997
申请日：1997-07-31
申请人： NITTO DENKO CORP
发明人： DOMOTO TADANORI
IPC分类号： B01J31/06 , B01J35/02
摘要： PROBLEM TO BE SOLVED: To prepare a photocatalyst sheet useful in antimicrobial treatment and treatments for eliminating fungi and preventing stains and undesirable odors, etc., by providing a minute air layer between the resin and photocatalytic fine particles which are dispersed in the calcined layer of polytetrafluoroethylene resin. SOLUTION: The photocatalyst sheet is prepared as follows. The photocatalyst layer 1 having the fine air layer between the resin and photocatalyst fine particles which are dispersed in the calcined layer of polytetrafluoroethylene resin, is first formed by evaporating the solvent in the layer to dryness which layer has been obtained by painting a dispersion containing polytetrafluoroethylene powder and photocatalyst fine particles, then calcining the layer to sinter and bind the contact part of the particles of polytetrafluoroethylene powder by heating, and cooling. Then, a dispersion comprising a filler or an inorganic pigment and polytetrafluoroethylene powder is coated on the photocatalyst layer 1, and the resulting layer is dried, calcined and cooled to form the reinforcing layer 2. Further after fixing the adhesive layer 3, which contains a perfluoro-resin powder and a colloidal silica and is highly adhesive, on the reinforcing layer 2, the sticking agent 4 is applied to the adhesive layer 3, and the exfoliation paper 5 is stuck to the layer of the sticking agent 4.

8. 发明专利

JPH1086258A DEODORIZING ANTIBACTERIAL SHEET, ITS PRODUCTION, AND ORNAMENT USING THE SAME 失效
公开(公告)号：JPH1086258A
公开(公告)日：1998-04-07
申请号：JP24075496
申请日：1996-09-11
申请人： NITTO DENKO CORP
发明人： DOMOTO TADANORI
IPC分类号： A41G1/00 , A61L9/01 , A61L9/16 , B29C55/18 , B29K27/12 , B29K105/04 , B29K105/16 , B29L9/00 , B32B5/32 , B32B27/18 , B32B27/20
摘要： PROBLEM TO BE SOLVED: To provide a deodorizing antibacterial sheet capable of sufficiently developing a deodorizing antibacterial action of titanium oxide, excellent in bendability and prevented from a crack and breakage. SOLUTION: A carrier is coated with a PTFE dispersion and the evaporative removal of the dispersing solvent in the dispersion and the baking of PTFE are performed by heating to form a first PTFB layer and this layer is coated with 5 PTFE dispersion containing titanium oxide particles and a gas absorbent and the evaporative removal of the dispersing solvent in the dispersion and the baking of PTFE are performed to laminate and form a second PTFE layer to produce a laminated sheet having a double-layered structure and this laminated sheet is peeled from the carrier and subjected to stretching processing to be made porous to form a deodorizing antibacterial sheet 1. This sheet is constituted so that a second PTFE porous layer 1a containing titanium oxide particles and an additive 4 such as a gas adsorbent is laminated and formed on the first PTFE porous layer 1b.

9. 发明专利

JPH07308973A BASE MATERIAL FOR ENDLESS BELT AND MANUFACTURE OF THE BELT USING THE SAME MATERIAL 失效
公开(公告)号：JPH07308973A
公开(公告)日：1995-11-28
申请号：JP10250594
申请日：1994-05-17
申请人： NITTO DENKO CORP
发明人： DOMOTO TADANORI , TAKAHATA EIJI , TAKUMA TAKETO , ENOMOTO KENGO , SATO KENJI
IPC分类号： B32B5/28 , B29C65/00 , B29C65/02 , B29D29/00 , B29K27/12 , B32B27/30
摘要： PURPOSE:To easily manufacture a stepless endless belt and to pressurize only butted parts by so connecting cloth materials formed with an unburned polytetrafluoroethylene layer as to be opposed to one another. CONSTITUTION:Burned PTFE layers 3A, 3B are formed on both side surfaces of one cloth material 1, and unburned PTFE layers 5A, 5B are provided via the burned layers 3A, 3B. Burned PTFE layers 4A, 4B are formed similarly on both side surfaces of the other cloth material 2, and unburned PTFE layers 6A, 6B are provided via them. The materials 1, 2 are so connected that the layers 5A and 6A are opposed. The materials 1, 2 are peelable at a boundary between the layers 5A and 6A at both the ends.

10. 发明专利

JPH07246671A COMPOSITE TUBULAR ARTICLE 失效
公开(公告)号：JPH07246671A
公开(公告)日：1995-09-26
申请号：JP16374494
申请日：1994-07-15
申请人： NITTO DENKO CORP
发明人： NAKAJIMA TOSHIO , KANETO MASAYUKI , TOMITA TOSHIHIKO , FUJITA TOKIO , ISHIZAKA HITOSHI , HARADA CHIAKI , UEMURA TAKEMASA , SASAKI TAIZO , NAKAMURA MASAO , HONDO MAMORU , DOMOTO TADANORI , IWAMOTO TOSHIAKI
IPC分类号： C08J7/00 , B32B1/08 , B32B27/30 , B32B27/34
摘要： PURPOSE:To develop excellent characteristics as a fixing belt by roughening the outer peripheral surface of the outer layer of a composite tubular article consisting of a polyimide resin inner layer and a fluoroplastic outer layer so as to set the surface roughness thereof to a specific range. CONSTITUTION:A fluoroplastic soln. is applied to the inner peripheral surface of a heat-resistant cylinder (a silicone resin may be applied to the inner peripheral surface in order to enhance release effect) composed of a metal or glass characterized by that the surface roughness of the inner peripheral surface thereof is about 1-10mum and the inner diameter thereof is about 10-500mm. It is pref. to uniformly disperse a particulate material with an average particle size of about 5mum or less in the fluoroplastic soln. because the outer peripheral surface of a fluoroplastic layer is homogenously roughened. The surface roughness (Rz) of the fluoroplastic layer depends on the surface roughness of the inner peripheral surface of the cylinder to be used or the average particle size of the particulate material to be dispersed and is set to 1-10mum. By this constitution, the coating irregularity of the soln. is not generated and the thickness irregularity of the inner and outer layers of a composite tubular article is reduced.

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