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1.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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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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3.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：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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