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公开(公告)号：US10688448B2
公开(公告)日：2020-06-23
申请号：US15100002
申请日：2014-12-01
发明人： Shinichi Chaen , Taku Yamanaka , Kohei Yasuda , Masahiko Yamada , Nobuki Uraoka , Tomohisa Konishi , Kunihiko Inui , Yoshiyuki Shibuya , Makoto Ono
IPC分类号： B01D71/36 , B01D69/02 , H01M8/1039 , B01D69/08 , C08J5/22 , B01J20/26 , B01D39/16 , H01M8/1018
摘要： The present invention provides a porous body having high strength, a small pore size, and excellent homogeneity. The porous body of the present invention includes polytetrafluoroethylene and has a microstructure that includes nodes and fibrils. The microstructure further includes, in addition to the nodes and the fibrils, fused points where a fibril that links two nodes and another fibril that links another two nodes are fused with each other.
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公开(公告)号：US09707504B2
公开(公告)日：2017-07-18
申请号：US14394946
申请日：2013-04-19
发明人： Shinichi Chaen , Hideyuki Kiyotani , Kunihiko Inui , Taku Yamanaka , Li Bao , Yoshiyuki Shibuya , Seigo Yamamoto , Makoto Kobayashi , Shunji Kasai , Hitoshi Niinuma
IPC分类号： B01D53/22 , B01D46/54 , B32B27/32 , C08L27/18 , B01D46/00 , B29D7/01 , B29D99/00 , B01D71/36 , B29K27/18 , B29K105/00
CPC分类号： B01D71/36 , B01D46/0001 , B01D46/0019 , B01D46/543 , B29D7/01 , B29D99/005 , B29K2027/18 , B29K2105/0005 , B32B27/322 , C08K3/36 , C08L27/18 , C08L83/04 , C08L2205/025 , C08L2205/03
摘要： A composition, a mixed powder and a material for molding have polytetrafluoroethylene as a main component. Each includes polytetrafluoroethylene that can be fibrillated, a non-hot melt processable component that is not fibrillated, and a hot melt processable component with a melting point of lower than 320° C. that is not fibrillated. The hot melt processable component is contained at equal to or more than 0.1% by weight but less than 20% by weight of a total weight. A filtering medium for an air filter includes a porous membrane made of these components, and an air permeable support. The porous membrane is manufactured, by mixing these components, extruding the mixture, rolling and drawing.
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公开(公告)号：US10265654B2
公开(公告)日：2019-04-23
申请号：US15127367
申请日：2015-03-20
发明人： Yoshiyuki Shibuya , Hideyuki Kiyotani , Kunihiko Inui , Li Bao , Shinichi Chaen , Seigo Yamamoto , Makoto Kobayashi , Hitoshi Niinuma
摘要： A filtering medium includes first and second porous membranes mainly composed of fluororesin, and a plurality of air permeable supports to support the first and second membranes. The second membrane is disposed downstream of the first membrane. When air containing polyalphaolefin particles with a count median diameter of 0.25 μm is continuously passed through at a flow rate of 5.3 cm/sec and pressure loss is increased by 250 Pa, the first membrane has a dust retention amount larger than the second membrane. The filtering medium has a pressure loss of less than 200 Pa when air is passed through at a flow rate of 5.3 cm/sec. A collecting efficiency of NaCl particles with a particle diameter of 0.3 μm is 99.97% or more when air containing the NaCl particles is passed through at a flow rate of 5.3 cm/sec. The dust retention amount is 25 g/m2 or more.
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公开(公告)号：US11084895B2
公开(公告)日：2021-08-10
申请号：US15038307
申请日：2014-12-01
发明人： Taku Yamanaka , Makoto Ono , Kohei Yasuda , Masahiko Yamada , Shinichi Chaen , Yasuhiko Sawada , Takahiro Taira , Hirotoshi Yoshida , Taketo Kato
IPC分类号： C08F214/18 , C08J5/18 , C08F214/26 , B29C55/04
摘要： The present invention aims to provide a modified polytetrafluoroethylene fine powder capable of providing a stretched body having high strength, a small pore size, and excellent homogeneity. The modified polytetrafluoroethylene fine powder of the present invention has non-melt-processability, has a standard specific gravity of 2.155 or lower, includes 0.015 mol % or more of a polymer unit derived from perfluoro(methyl vinyl ether) in all the monomer units, is obtained by emulsion polymerizing tetrafluoroethylene and at least the perfluoro(methyl vinyl ether) in the presence of a fluorosurfactant having a LogPOW value of 3.4 or lower, and has an extrusion pressure of 20.0 MPa or lower.
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公开(公告)号：US20150200402A1
公开(公告)日：2015-07-16
申请号：US14412900
申请日：2013-07-08
IPC分类号： H01M4/86
CPC分类号： H01M4/8673 , C08J3/20 , C08J5/18 , C08J2327/18 , C08K3/04 , C08K2201/014 , H01B1/24 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M2008/1095 , C08L27/18
摘要： The present invention aims to provide a sheet having high conductivity in the thickness direction and excellent breathability, water repellency, corrosion resistance, and flexibility so as to be suitably used for an electrode of fuel cells and the like. The present invention also aims to provide an electrode and a fuel cell. The present invention provides a sheet containing polytetrafluoroethylene, carbon black, and graphite, the polytetrafluoroethylene having a standard specific gravity of 2.14 to 2.28, a total amount of the carbon black and the graphite being more than 35% by mass of a total amount of the polytetrafluoroethylene, the carbon black, and the graphite.
摘要翻译： 本发明的目的在于提供一种在厚度方向上具有高导电性和优异的透气性，防水性，耐腐蚀性和柔软性的片材，以适合用于燃料电池等的电极。 本发明的目的还在于提供一种电极和燃料电池。 本发明提供一种含有聚四氟乙烯，炭黑和石墨的片材，所述聚四氟乙烯的标准比重为2.14〜2.28，碳黑和石墨的总量为总量的35质量％ 聚四氟乙烯，炭黑和石墨。
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6.发明申请COMPOSITION HAVING PTFE AS MAIN COMPONENT, MIXED POWDER, MATERIAL FOR MOLDING, FILTERING MEDIUM FOR FILTER, AIR FILTER UNIT, AND A METHOD FOR MANUFACTURING A POROUS MEMBRANE 有权具有PTFE作为主要组分的组合物，混合粉末，用于模制的材料，用于过滤器的过滤器，空气过滤器单元以及用于制造多孔膜的方法公开(公告)号：US20150082757A1
公开(公告)日：2015-03-26
申请号：US14394946
申请日：2013-04-19
发明人： Shinichi Chaen , Hideyuki Kiyotani , Kunihiko Inui , Taku Yamanaka , Li Bao , Yoshiyuki Shibuya , Seigo Yamamoto , Makoto Kobayashi , Shunji Kasai , Hitoshi Niinuma
CPC分类号： B01D71/36 , B01D46/0001 , B01D46/0019 , B01D46/543 , B29D7/01 , B29D99/005 , B29K2027/18 , B29K2105/0005 , B32B27/322 , C08K3/36 , C08L27/18 , C08L83/04 , C08L2205/025 , C08L2205/03
摘要： A composition, a mixed power and a material for molding have polytetrafluoroethylene as a main component. Each includes polytetrafluoroethylene that can be fibrillated, a non-hot melt processable component that is not fibrillated, and a hot melt processable component with a melting point of lower than 320° C. that is not fibrillated. The hot melt processable component is contained at equal to or more than 0.1% by weight but less than 20% by weight of a total weight. A filtering medium for an air filter includes a porous membrane made of these components, and an air permeable support. The porous membrane is manufactured, by mixing these components, extruding the mixture, rolling and drawing.
摘要翻译： 组合物，混合动力和用于模塑的材料具有聚四氟乙烯作为主要成分。 每个都包括可以被原纤化的聚四氟乙烯，不原纤化的非热熔可加工组分，以及熔点低于320℃，不原纤化的热熔加工组分。 热熔可加工成分的含量为0.1重量％以上且小于20重量％。 用于空气过滤器的过滤介质包括由这些部件制成的多孔膜和透气性支撑体。 通过混合这些组分制造多孔膜，挤出混合物，轧制和拉伸。
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公开(公告)号：US10944121B2
公开(公告)日：2021-03-09
申请号：US15100048
申请日：2014-12-01
发明人： Yuichi Inoue , Kuon Miyazaki , Kentaro Kikuchi , Nobuki Uraoka , Shinichi Chaen , Tomohisa Konishi , Tadashi Ino
IPC分类号： H01M8/1044 , H01M8/1039 , H01B1/12 , C08J5/22 , B01D71/32 , B01D71/82 , B01D69/02 , H01M8/1025 , H01M8/1018
摘要： The present invention provides a polymer electrolyte membrane having excellent strength, a small dimensional change, and a low membrane resistance. The polymer electrolyte membrane includes a porous film having pores and a polymer electrolyte contained in the pores. The porous film is obtained by copolymerizing tetrafluoroethylene and an ethylenic comonomer to provide polytetrafluoroethylene and then stretching the polytetrafluoroethylene. The porous film has an average pore size of greater than 0.20 μm.
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8.发明授权公开(公告)号：US10265661B2
公开(公告)日：2019-04-23
申请号：US15612678
申请日：2017-06-02
发明人： Shinichi Chaen , Hideyuki Kiyotani , Kunihiko Inui , Taku Yamanaka , Li Bao , Yoshiyuki Shibuya , Seigo Yamamoto , Makoto Kobayashi , Shunji Kasai , Hitoshi Niinuma
IPC分类号： B01D53/22 , B01D71/36 , B32B27/32 , C08L27/18 , B01D46/00 , B01D46/54 , B29D7/01 , B29D99/00 , C08K3/36 , C08L83/04 , B29K27/18 , B29K105/00
摘要： A mixed powder and a material for molding have polytetrafluoroethylene as a main component. Each includes polytetrafluoroethylene that can be fibrillated, a non-hot melt processable component that is not fibrillated, and a hot melt processable component with a melting point of lower than 320° C. that is not fibrillated. The non-hot melt processable component that is not fibrillated is contained in a range of 20 to 40% by weight of the total weight. The hot melt processable component is contained at equal to or more than 0.1% by weight but less than 20% by weight of the total weight. A drawn porous body includes a plurality of fibrils, and a plurality of knotted portions that are connected to each other by the fibrils.
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