公开(公告)号：US20240165585A1

公开(公告)日：2024-05-23

申请号：US18284274

申请日：2022-03-22

Applicant: NITTO DENKO CORPORATION

Inventor： Shota TANAKA ,  Koso MATSUDA ,  Chisato GOTO

IPC: B01J20/26 ,  B01D53/04 ,  B01J20/28 ,  B01J20/32

CPC classification number: B01J20/262 ,  B01D53/04 ,  B01J20/28064 ,  B01J20/28076 ,  B01J20/28083 ,  B01J20/3204 ,  B01D2253/202 ,  B01D2257/504

Abstract: The present invention provides an acidic gas adsorbent having improved heat resistance. The acidic gas adsorbent of the present invention includes a porous body, and an amine compound being a solid and being supported on surfaces of pores of the porous body. The acidic gas adsorbent includes, for example, a cover layer covering the surfaces of the pores of the porous body, and the cover layer includes the amine compound. As an example, when each pore of the porous body is assumed to have a spherical shape, the cover layer has a thickness of 5.0 nm or less, the thickness being calculated from the average pore diameter of the porous body, the pore volume of the porous body, and the pore volume of the acidic gas adsorbent.

公开(公告)号：US20240173693A1

公开(公告)日：2024-05-30

申请号：US18284152

申请日：2022-03-01

Applicant: NITTO DENKO CORPORATION

Inventor： Chisato GOTO ,  Koso MATSUDA ,  Satoru SUZUKI

IPC: B01J20/26 ,  B01D53/62 ,  B01D53/81 ,  B01J20/28 ,  B01J20/30 ,  D01D5/00 ,  D01F6/50

CPC classification number: B01J20/262 ,  B01D53/62 ,  B01D53/81 ,  B01J20/28023 ,  B01J20/2803 ,  B01J20/28038 ,  B01J20/3042 ,  B01J20/3085 ,  D01D5/0038 ,  D01F6/50 ,  B01D2253/202 ,  B01D2253/304 ,  B01D2257/504 ,  B01D2258/06 ,  D10B2401/00

Abstract: The present invention provides a novel fiber suitable for an adsorbent for acidic gas. The fiber of the present invention includes a polymer having an amino group. With respect to the fiber, an adsorption amount of carbon dioxide when the fiber is caused to be in contact with mixed gas composed of carbon dioxide, nitrogen, and water vapor for 15 hours is 0.1 mmol/g or more, for example. Here, the carbon dioxide in the mixed gas has a concentration of 400 vol ppm, and the mixed gas has a temperature of 23° C. and a humidity of 50% RH.

公开(公告)号：US20180050335A1

公开(公告)日：2018-02-22

申请号：US15557316

申请日：2016-03-11

Applicant: NITTO DENKO CORPORATION

Inventor： Mizuki YAMAMOTO ,  Takeshi NAKANO ,  Koso MATSUDA ,  Hiroyuki NISHII ,  Takashi SUZUKI

IPC: B01J41/14 ,  B32B27/08 ,  B32B27/30 ,  H01M8/1018 ,  H01M4/86 ,  C08F261/04 ,  B01J41/05 ,  H01B1/12

CPC classification number: B01J41/14 ,  B01J41/05 ,  B32B27/00 ,  B32B27/08 ,  B32B27/306 ,  B32B2457/18 ,  C08F210/02 ,  C08F226/04 ,  C08F226/06 ,  C08F261/04 ,  H01B1/06 ,  H01B1/12 ,  H01B1/121 ,  H01M4/86 ,  H01M8/1018 ,  H01M8/103 ,  H01M8/1053 ,  H01M8/106 ,  H01M2008/1095 ,  H01M2300/0082 ,  H01M2300/0094

Abstract: Provided is a resin including a copolymer having a first structural unit and/or second structural unit and a structural unit having a polar group. R1, R2, R5, and R6 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R3 and R4 are each independently a hydrogen atom or an alkyl group having 1 to 18 carbon atoms, A1 is a saturated carbon chain having 3 to 7 carbon atoms or a structure resulting from substitution of a heteroatom for a part of the carbon atoms of the saturated carbon chain, m and n are each independently 0 or 1, and X1 and X2 are each independently a halide ion, a hydroxide ion, or an anion of an organic or inorganic acid.

公开(公告)号：US20240001336A1

公开(公告)日：2024-01-04

申请号：US18007686

申请日：2021-06-01

Applicant: NITTO DENKO CORPORATION

Inventor： Koso MATSUDA ,  Satoru SUZUKI

IPC: B01J20/26 ,  B01J20/34 ,  B01D53/04

CPC classification number: B01J20/26 ,  B01J20/34 ,  B01D53/04 ,  B01D2253/202 ,  B01D2257/504

Abstract: Provided is an acid gas adsorption and desorption material which is capable of satisfying both excellent durability and high adsorption and desorption amounts, and is also good in terms of desorption energy. The acid gas adsorption and desorption material has acid gas adsorption and desorption capabilities and is capable of adsorbing 0.35 mmol/g or more of acid gas within 15 hours under one or more acid gas adsorption conditions, in an atmosphere whose acid gas concentration is 400 ppm±10 ppm, and then desorbing 50% or more of the adsorbed acid gas within 1.5 hours under one or more acid gas desorption conditions.

公开(公告)号：US20230302403A1

公开(公告)日：2023-09-28

申请号：US17925248

申请日：2021-04-23

Applicant: NITTO DENKO CORPORATION

Inventor： Terukazu IHARA ,  Shinya NISHIYAMA ,  Kensuke TANI ,  Hirokazu MATSUDA ,  Satoru SUZUKI ,  Koso MATSUDA ,  Hiroyuki KATAYAMA

IPC: B01D53/62 ,  B01D53/75

CPC classification number: B01D53/62 ,  B01D53/75 ,  B01D2257/504 ,  B01D2258/06

Abstract: Provided is a carbon-dioxide capture and treatment system comprising: a carbon dioxide-enriched mixture gas generation device comprising a separation membrane capable of increasing a carbon dioxide concentration of a mixture gas taken therein, thereby generating a carbon dioxide-enriched mixture gas; a carbon dioxide conversion device configured to convert carbon dioxide in the enriched mixture gas received from the carbon dioxide-enriched mixture gas generation device, into a chemically stable compound; a final treatment device comprising an adsorbent, wherein the final treatment device is configured to adsorb the carbon dioxide by the adsorbent, thereby separating the carbon dioxide from other gas components; and a carbon dioxide direct capture device configured to take in air contained in an ambient environment, and supply the taken-in air to the final treatment device or an upstream side thereof in the carbon-dioxide capture and treatment system.

公开(公告)号：US20180050336A1

公开(公告)日：2018-02-22

申请号：US15556957

申请日：2016-03-11

Applicant: NITTO DENKO CORPORATION

Inventor： Koso MATSUDA ,  Takashi SUZUKI ,  Takeshi NAKANO ,  Hiroyuki NISHII

IPC: B01J47/12 ,  B01J41/14 ,  C02F1/469 ,  C08F12/28 ,  C08J7/18 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1072 ,  C08J5/22

CPC classification number: B01J47/12 ,  B01J41/04 ,  B01J41/14 ,  C02F1/469 ,  C08F12/28 ,  C08J5/22 ,  C08J5/2243 ,  C08J7/18 ,  H01B1/06 ,  H01B13/00 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/106 ,  H01M8/1072 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/366 ,  Y02P70/56

Abstract: Provided is an anion-exchange membrane including: a substrate composed of a film of ultrahigh molecular weight polyolefin; and a graft chain having the following structural unit. L1 to L5 are each independently a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkanol group having 1 to 4 carbon atoms, or a specific functional group including an anion-exchange group, and an example of the functional group is —Z2-M1-Z1(R1)(R2)(R3). R1 to R3 are directly bonded to Z1 and are each independently an alkyl group having 1 to 8 carbon atoms or an alkanol group having 1 to 8 carbon atoms. M1 is a linear hydrocarbon chain having 3 to 8 carbon atoms, Z1 is a nitrogen atom or a phosphorus atom, and Z2 is a nitrogen atom bonded to one hydrogen atom, an oxygen atom, or a sulfur atom. L6 is a hydrogen atom, a methyl group, or an ethyl group.

公开(公告)号：US20240416319A1

公开(公告)日：2024-12-19

申请号：US18700808

申请日：2022-09-22

Applicant: NITTO DENKO CORPORATION

Inventor： Koso MATSUDA

IPC: B01J20/26 ,  B01D53/04 ,  B01J20/28 ,  B01J20/30 ,  B01J20/32 ,  B01J20/34

Abstract: The present invention provides a new acidic gas adsorbent suitable for adsorption of acidic gas. An acidic gas adsorbent of the present invention includes a porous sheet including a polymer. The polymer has an amino group. The porous sheet has a three-dimensional network skeleton composed of the polymer. A structure of the present invention includes the acidic gas adsorbent and an air flow path. An acidic gas adsorption device of the present invention includes an adsorption part having a gas inlet and a gas outlet. The adsorption part contains the acidic gas adsorbent.

公开(公告)号：US20180366754A1

公开(公告)日：2018-12-20

申请号：US16060787

申请日：2016-12-09

Applicant: NITTO DENKO CORPORATION

Inventor： Mizuki YAMAMOTO ,  Koso MATSUDA ,  Takeshi NAKANO

IPC: H01M8/1044 ,  H01M8/1004 ,  H01M8/1072 ,  C08J5/22 ,  H01M8/103

Abstract: The electrolyte membrane of the present disclosure includes a phase A forming a matrix phase, and a phase B. The phase B is continuous from a first principal surface of the electrolyte membrane to a second principal surface of the electrolyte membrane opposite to the first principal surface. The phase B includes a graft polymer having a main chain and a graft chain. The graft chain has a functional group having anion-exchange ability. The main chain preferably has no functional group having anion-exchange ability. The electrolyte membrane of the present disclosure can reliably maintain the function as a separation membrane even when decomposition reaction by a peroxide occurs.

公开(公告)号：US20180053943A1

公开(公告)日：2018-02-22

申请号：US15557302

申请日：2016-03-11

Applicant: NITTO DENKO CORPORATION

Inventor： Takashi SUZUKI ,  Hiroyuki NISHII ,  Koso MATSUDA ,  Mizuki YAMAMOTO ,  Takeshi NAKANO

IPC: H01M4/86 ,  B32B27/30 ,  H01M4/88 ,  H01M8/1018 ,  C08F212/08 ,  C08F112/14 ,  C08F8/24 ,  H01B1/20

CPC classification number: H01M8/1018 ,  B32B27/30 ,  B32B2457/18 ,  C08F8/00 ,  C08F8/24 ,  C08F112/14 ,  C08F212/08 ,  H01B1/12 ,  H01B1/20 ,  H01M4/86 ,  H01M4/8668 ,  H01M4/88 ,  H01M4/8807 ,  H01M4/881 ,  H01M4/8814 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1053 ,  H01M2008/1095 ,  H01M2300/0082 ,  H01M2300/0094

Abstract: Provided is an ionomer resin including a copolymer containing the following first structural unit. L1 to L5 are each independently a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkanol group having 1 to 4 carbon atoms, or a specific functional group including an anion-exchange group, and an example of the functional group is —Z2-M1-Z1(R1)(R2)(R3). R1 to R3 are directly bonded to Z1 and are each independently an alkyl group having 1 to 8 carbon atoms or an alkanol group having 1 to 8 carbon atoms. M1 is a linear hydrocarbon chain having 3 to 8 carbon atoms, Z1 is a nitrogen atom or a phosphorus atom, and Z2 is a nitrogen atom bonded to one hydrogen atom, an oxygen atom, or a sulfur atom. L6 is a hydrogen atom, a methyl group, or an ethyl group.