公开(公告)号：US12098226B2

公开(公告)日：2024-09-24

申请号：US17351717

申请日：2021-06-18

Applicant: AGC Inc.

Inventor： Takeshi Hirai ,  Daisuke Jomuta ,  Chikaya Tamitsuji ,  Takumi Okuyama

IPC: C08F214/26 ,  B29C48/00 ,  B29K27/12 ,  B29L31/00 ,  C08J5/18 ,  C08J5/22 ,  C08J5/24 ,  H01M8/10 ,  H01M8/1004

CPC classification number: C08F214/26 ,  B29C48/022 ,  C08J5/18 ,  C08J5/2237 ,  C08J5/243 ,  H01M8/1004 ,  B29K2027/12 ,  B29L2031/755 ,  C08J2327/18 ,  H01M2008/1095 ,  H01M2300/0082

Abstract: To provide a polymer wherein a linking group that connects the main chain of the polymer and a cyclic perfluoroaliphatic disulfonimide skeleton, is a fluoroalkylene group which may have an ether oxygen atom. A polymer which has either one or both of units represented by formula u1-1 and units represented by formula u1-2:




RF1, RF2: a C1-3 perfluoroalkylene group; RF3: a C1-6 perfluoroalkylene group; m: 0 or 1; and X: a hydrogen atom, an alkali metal atom, a fluorine atom, an alkyl group, ammonium or the like.

公开(公告)号：US11898018B2

公开(公告)日：2024-02-13

申请号：US17332145

申请日：2021-05-27

Applicant: AGC Inc.

Inventor： Takumi Okuyama ,  Takeshi Hirai ,  Susumu Saito ,  Chikaya Tamitsuji ,  Daisuke Jomuta

IPC: C08J5/22 ,  C08L29/10 ,  H01M8/10 ,  H01M8/1004 ,  H01M8/1039 ,  H01M8/1051

CPC classification number: C08J5/225 ,  C08L29/10 ,  H01M8/1004 ,  H01M8/1039 ,  H01M8/1051 ,  C08J2329/10 ,  H01M2008/1095 ,  H01M2300/0082

Abstract: To provide a liquid composition capable of forming a membrane excellent in durability against hydrogen peroxide or peroxide radicals and excellent in hydrogen gas barrier property; a polymer electrolyte membrane; a membrane electrode assembly; and a polymer electrolyte fuel cell.
Liquid composition comprising a liquid medium, an acid-type sulfonic acid group-containing fluorocarbon polymer of which the hydrogen gas permeation coefficient under the conditions of a temperature of 80° C. and a relative humidity of 10% is at most 2.5×10−9 cm3·cm/(s·cm2·cmHg), and cerium atoms; a polymer electrolyte membrane 15 comprising the acid-type sulfonic acid group-containing fluorocarbon polymer, and cerium atoms; and a membrane electrode assembly 10 comprising an anode 13 having a catalyst layer, a cathode 14 having a catalyst layer, and the polymer electrolyte membrane 15 disposed between the anode 13 and the cathode 14.

公开(公告)号：US11851508B2

公开(公告)日：2023-12-26

申请号：US17330788

申请日：2021-05-26

Applicant: AGC Inc.

Inventor： Takeshi Hirai ,  Susumu Saito ,  Hiroyuki Watabe ,  Chikaya Tamitsuji ,  Daisuke Jomuta

IPC: C08F16/30 ,  B01J39/05 ,  B01J39/20 ,  C08J5/22 ,  C25B1/04 ,  C25B13/08 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1067 ,  H01M8/10

CPC classification number: C08F16/30 ,  B01J39/05 ,  B01J39/20 ,  C08J5/2231 ,  C25B1/04 ,  C25B13/08 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1067 ,  C08J2329/10 ,  H01M2008/1095

Abstract: An acid-type sulfonic acid group-containing polymer containing perfluoromonomer units, no monomer units having a halogen atom other than a fluorine atom, and acid type sulfonic acid groups, whose hydrogen gas permeability coefficient under the conditions of a temperature of 80° C. and a relative humidity of 10% is at most 2.5×10−9 cm3·cm/(s·cm2·cmHg), and whose mass reduction rate when immersed in hot water at 120° C. for 24 hours is at most 15 mass %. Liquid composition, membrane electrode assembly, polymer electrolyte fuel cell, and ion exchange membrane utilizing the acid-type sulfonic acid group-containing polymer.

公开(公告)号：US11414502B2

公开(公告)日：2022-08-16

申请号：US16801335

申请日：2020-02-26

Applicant: AGC Inc.

Inventor： Takeshi Hirai ,  Daisuke Jomuta ,  Chikaya Tamitsuji

IPC: C08F14/26 ,  C08F8/12 ,  C08L27/22 ,  H01M8/1004 ,  C07C303/22 ,  C07C309/80 ,  C07C309/82 ,  B01D71/32 ,  B01D67/00 ,  B01D69/02 ,  C08F16/24 ,  C08F16/30 ,  C08F216/14 ,  C08J5/22 ,  C25B1/02 ,  C25B1/04 ,  C25B1/46 ,  H01B1/12 ,  H01M4/86 ,  H01M8/1007 ,  H01M8/1039 ,  H01M8/18 ,  C25B13/08 ,  H01M8/1023 ,  C08F214/26 ,  H01M8/10 ,  H01M10/0565 ,  H01M50/411 ,  B01D71/36 ,  B01D71/82 ,  B01J39/20 ,  B01D69/14

Abstract: A fluorosulfonyl group-containing polymer having units represented by the following formula u1, a sulfonic acid group-containing polymer having fluorosulfonyl groups in the fluorosulfonyl group-containing polymer converted into sulfonic acid groups, its production method and its applications: wherein RF1 and RF2 are a C1-3 perfluoroalkylene group.

公开(公告)号：US12187821B2

公开(公告)日：2025-01-07

申请号：US17505679

申请日：2021-10-20

Applicant: AGC Inc.

Inventor： Takeshi Hirai ,  Daisuke Jomuta ,  Chikaya Tamitsuji

IPC: C08F214/26 ,  B01D67/00 ,  B01D69/02 ,  B01D71/32 ,  B01D71/36 ,  B01D71/82 ,  B01J39/20 ,  C07C303/22 ,  C07C309/80 ,  C07C309/82 ,  C08F8/12 ,  C08F14/26 ,  C08F16/24 ,  C08F16/30 ,  C08F216/14 ,  C08J5/22 ,  C08L27/22 ,  C25B1/02 ,  C25B1/04 ,  C25B1/46 ,  C25B13/08 ,  H01B1/12 ,  H01M4/86 ,  H01M8/10 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/18 ,  H01M10/0565 ,  H01M50/411 ,  B01D69/14

Abstract: A method for producing a fluorosulfonyl group-containing compound to obtain a compound represented by the following formula 5 from a compound represented by the following formula 1 as a starting material and a method for producing a fluorosulfonyl group-containing monomer in which the fluorosulfonyl group-containing compound is used: wherein R1 and R2 are a C1-3 alkylene group, and RF1 and RF2 are a C1-3 perfluoroalkylene group.

公开(公告)号：US11840589B2

公开(公告)日：2023-12-12

申请号：US17331912

申请日：2021-05-27

Applicant: AGC Inc.

Inventor： Takeshi Hirai ,  Daisuke Jomuta ,  Chikaya Tamitsuji

IPC: C08F214/26 ,  C08F216/14 ,  C25B9/23 ,  C25B1/04 ,  C25B13/08 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1067 ,  H01B1/12 ,  H01M8/1039 ,  H01M8/1058 ,  H01M8/10

CPC classification number: C08F214/262 ,  C08F216/1475 ,  C25B1/04 ,  C25B9/23 ,  C25B13/08 ,  H01B1/12 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1058 ,  H01M8/1067 ,  H01M2008/1095

Abstract: To provide a perfluoropolymer capable of producing an electrolyte membrane excellent in mechanical strength in high temperature environments; as well as a liquid composition, polymer electrolyte membrane, membrane electrode assembly and polymer electrolyte water electrolyzer, obtainable by using the perfluoropolymer.
The perfluoropolymer of the present invention contains perfluoromonomer units, does not substantially contain units having a halogen atom other than a fluorine atom, does not substantially contain units having a ring structure, and has acid-type sulfonic acid groups, wherein the perfluoromonomer units contain at least one type of units A selected from the group consisting of perfluorovinyl ether units and perfluoroallyl ether units; the ion exchange capacity is from 0.9 to 1.4 milliequivalent/gram dry resin; and the storage modulus at 120° C. is at least 100 MPa.

公开(公告)号：US11242420B2

公开(公告)日：2022-02-08

申请号：US16801222

申请日：2020-02-26

Applicant: AGC Inc.

Inventor： Takeshi Hirai ,  Daisuke Jomuta ,  Chikaya Tamitsuji

IPC: C07C303/22 ,  C07C309/80 ,  C07C309/82 ,  C08F14/26 ,  C08F8/12 ,  C08L27/22 ,  H01M8/1004

Abstract: A method for producing a fluorosulfonyl group-containing compound to obtain a compound represented by the following formula 5 from a compound represented by the following formula 1 as a starting material and a method for producing a fluorosulfonyl group-containing monomer in which the fluorosulfonyl group-containing compound is used: wherein R1 and R2 are a C1-3 alkylene group, and RF1 and RF2 are a C1-3 perfluoroalkylene group.

公开(公告)号：US10975053B2

公开(公告)日：2021-04-13

申请号：US16936512

申请日：2020-07-23

Applicant: AGC Inc.

Inventor： Daisuke Jomuta ,  Yusuke Takahira ,  Nobuyuki Otozawa ,  Chikaya Tamitsuji

IPC: C07D317/42

Abstract: The present invention relates to a method for producing a 1,3-dioxolane compound represented by formula 1, the method containing step (a), in which hexafluoroacetone monohydrate is brought into contact with a metal fluoride, step (b), in which fluorine gas is brought into contact, and step (c), in which an olefin compound represented by formula 2 is brought into contact. In formulae 1 and 2, X1 to X4 each independently represent a hydrogen atom, fluorine atom, chlorine atom, or trifluoromethyl group.

公开(公告)号：US10358400B2

公开(公告)日：2019-07-23

申请号：US15633435

申请日：2017-06-26

Applicant: AGC Inc.

Inventor： Yusuke Takahira ,  Daisuke Jomuta

IPC: C07C6/04 ,  B01J23/24 ,  C07C21/04 ,  C07C21/18 ,  C07C67/287 ,  C07C67/307 ,  C07C41/22 ,  C07D207/27 ,  C07D209/86 ,  C07C17/361 ,  B01J23/28 ,  B01J31/18 ,  B01J31/22 ,  C07B61/00

Abstract: A method for producing at least one olefin compound selected from the group consisting of a compound of formula (51) and a compound of formula (52), the method including reacting an olefin compound of formula (21) with a olefin compound of formula (31) in the presence of at least one metal catalyst selected from the group consisting of a compound of formula (11), a compound of formula (12), a compound of formula (13), a compound of formula (14), and a compound of formula (15).