公开(公告)号：US20230372849A1

公开(公告)日：2023-11-23

申请号：US18229739

申请日：2023-08-03

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Hideyuki KIYOTANI ,  Kunihiko INUI ,  Nobuki URAOKA ,  Yoshiyuki SHIBUYA

IPC: B01D39/16 ,  B01D69/02 ,  B01D71/36 ,  B01D46/52 ,  B32B27/32 ,  B32B5/02 ,  B32B27/12 ,  C08L27/18 ,  A62B23/02

CPC classification number: B01D39/1692 ,  B01D69/02 ,  B01D71/36 ,  B01D46/521 ,  B32B27/322 ,  B32B5/022 ,  B32B27/12 ,  C08L27/18 ,  A62B23/02 ,  B01D2239/1291 ,  B01D2325/04 ,  B01D2239/10 ,  B32B2571/00 ,  B32B2307/516 ,  B32B2307/518 ,  B32B2262/0284 ,  B32B2262/0253 ,  B32B2262/124 ,  B32B2307/7376

Abstract: An air filter medium includes a fluororesin porous membrane and an air-permeable supporting member stacked on the fluororesin porous membrane. The fluororesin porous membrane has a pressure loss of 80 Pa or less when air is passed at a flow rate of 5.3 cm/s. The fluororesin porous membrane has a PF of 20 or more, the PF being determined from a formula PF={−log((100−collection efficiency (%))/100)}/(pressure loss (Pa)/1000) using the pressure loss and a collection efficiency determined using NaCl particles having a particle size of 0.1 μm. The fluororesin porous membrane has a thickness of 10 μm or more. A dust-holding capacity of polyalphaolefin particles having a number median diameter of 0.25 μm is 15.0 g/m2 or more when air containing the polyalphaolefin particles is continuously passed through the fluororesin porous membrane at a flow rate of 5.3 cm/s and pressure loss increases by 250 Pa.

公开(公告)号：US20170012313A1

公开(公告)日：2017-01-12

申请号：US15100010

申请日：2014-12-01

Applicant: ASAHI KASEI E-MATERIALS CORPORATION ,  DAIKIN INDUSTRIES, LTD.

Inventor： Yuichi INOUE ,  Kuon MIYAZAKI ,  Norihito TANAKA ,  Kentaro KIKUCHI ,  Nobuki URAOKA ,  Shinichi CHAEN ,  Tomohisa KONISHI ,  Tadashi INO

IPC: H01M8/1004 ,  H01M8/1027 ,  C08J5/22 ,  H01M8/1062 ,  H01M8/106 ,  C08F214/26 ,  H01B1/12 ,  H01M8/1039

CPC classification number: H01M8/1004 ,  C08F214/262 ,  C08F216/14 ,  C08F2216/1483 ,  C08J5/2237 ,  C08J2327/18 ,  C08J2427/12 ,  C08J2427/18 ,  H01B1/122 ,  H01M8/1023 ,  H01M8/1027 ,  H01M8/1039 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/1067 ,  H01M2008/1095 ,  H01M2300/0082

Abstract: 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 and a polymer electrolyte. The porous film has a fibril/node area ratio of 90/10 to 75/25.

Abstract translation: 本发明提供一种强度高，尺寸变化小，膜电阻低的高分子电解质膜。 聚合物电解质膜包括多孔膜和聚合物电解质。 多孔膜的原纤维/节结面积比为90/10〜75/25。

公开(公告)号：US20170005354A1

公开(公告)日：2017-01-05

申请号：US15100048

申请日：2014-12-01

Applicant: ASAHI KASEI E-MATERIALS CORPORATION ,  DAIKIN INDUSTRIES, LTD.

Inventor： Yuichi INOUE ,  Kuon MIYAZAKI ,  Kentaro KIKUCHI ,  Nobuki URAOKA ,  Shinichi CHAEN ,  Tomohisa KONISHI ,  Tadashi INO

IPC: H01M8/1044 ,  C08J5/22 ,  H01B1/12 ,  H01M8/1039

Abstract: 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.

Abstract translation: 本发明提供一种强度高，尺寸变化小，膜电阻低的高分子电解质膜。 聚合物电解质膜包括具有孔的多孔膜和包含在孔中的聚合物电解质。 多孔膜通过共聚四氟乙烯和乙烯类共聚单体得到聚四氟乙烯，然后拉伸聚四氟乙烯。 多孔膜的平均孔径大于0.20μm。

公开(公告)号：US20170002156A1

公开(公告)日：2017-01-05

申请号：US15100013

申请日：2014-12-01

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Shinichi CHAEN ,  Taku YAMANAKA ,  Kohei YASUDA ,  Masahiko YAMADA ,  Nobuki URAOKA ,  Tomohisa KONISHI ,  Kunihiko INUI ,  Yoshiyuki SHIBUYA ,  Makoto ONO

IPC: C08J5/18 ,  B01D67/00 ,  B01D71/52 ,  H01M8/1039 ,  H01M8/1069

CPC classification number: C08J5/18 ,  B01D67/0027 ,  B01D71/36 ,  B01D71/52 ,  B01D71/76 ,  C08J2327/18 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1079 ,  H01M2300/0082 ,  Y02P70/56

Abstract: The present invention aims to provide a biaxially stretched porous membrane having high strength, a small pore size, and excellent homogeneity. The biaxially stretched porous membrane of the present invention includes polytetrafluoroethylene obtained by copolymerizing tetrafluoroethylene and perfluoro(methyl vinyl ether).

Abstract translation: 本发明的目的在于提供一种具有高强度，小孔径，均匀性优异的双轴拉伸多孔膜。 本发明的双轴拉伸多孔膜包括通过共聚四氟乙烯和全氟（甲基乙烯基醚）获得的聚四氟乙烯。

公开(公告)号：US20170001155A1

公开(公告)日：2017-01-05

申请号：US15100002

申请日：2014-12-01

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Shinichi CHAEN ,  Taku YAMANAKA ,  Kohei YASUDA ,  Masahiko YAMADA ,  Nobuki URAOKA ,  Tomohisa KONISHI ,  Kunihiko INUI ,  Yoshiyuki SHIBUYA ,  Makoto ONO

IPC: B01D71/36 ,  B01D69/02 ,  H01M8/1039 ,  B01D69/08 ,  C08J5/22 ,  B01J20/26

Abstract: 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.

Abstract translation: 本发明提供一种具有高强度，小孔径，均匀性优异的多孔体。 本发明的多孔体包括聚四氟乙烯并且具有包括节点和原纤维的微结构。 除了节点和原纤维之外，微结构进一步包括熔合点，其中连接两个节点的原纤维和另一个连接另外两个节点的原纤维彼此熔合。