公开(公告)号：US20190131646A1

公开(公告)日：2019-05-02

申请号：US16225607

申请日：2018-12-19

Applicant: AGC Inc.

Inventor： Susumu SAITO ,  Satoru HOMMURA ,  Takeshi HIRAI

IPC: H01M8/1039 ,  H01M8/1004 ,  C08F2/04 ,  C08F14/26

Abstract: To provide an electrolyte material which has a high proton conductivity and which is excellent in hot water resistance.An electrolyte material which is formed of a polymer H having units represented by the formula u1 and units based on tetrafluoroethylene, wherein the polymer H has an equivalent weight EW of from 400 to 550 g/eq, and the mass reduction ratio when immersed in hot water at 120° C. for 24 hours is at most 15 mass %: wherein Q11 is a perfluoroalkylene group which may have an etheric oxygen atom, Q12 is a single bond or a perfluoroalkylene group which may have an etheric oxygen atom, Y1 is a fluorine atom or the like, s is 0 or 1, Rf1 is a perfluoroalkyl group which may have an etheric oxygen atom, X1 is an oxygen atom or the like, a is 0 when X1 is an oxygen atom, and Z+ is H+ or the like.

公开(公告)号：US20240254266A1

公开(公告)日：2024-08-01

申请号：US18621234

申请日：2024-03-29

Applicant: AGC Inc.

Inventor： Susumu SAITO ,  Satoru HOMMURA ,  Hiroyuki WATABE

IPC: C08F214/18 ,  C08F216/38 ,  C08J5/22 ,  H01M8/1004 ,  H01M8/1039 ,  H01M8/1088 ,  H01M8/10

CPC classification number: C08F214/184 ,  C08F216/38 ,  C08J5/225 ,  H01M8/1004 ,  H01M8/1039 ,  H01M8/1088 ,  C08J2327/12 ,  H01M2008/1095

Abstract: To provide a method for producing a fluorinated polymer, in which it is possible to efficiently and easily control the molecular weight to be proper when polymerizing a perfluoromonomer having a dioxolane ring containing a polymerizable double bond in the ring skeleton, and in which the obtainable fluorinated polymer is less susceptible to a decrease in molecular weight even when contacted with a base. A method for producing a fluorinated polymer, comprising polymerizing a raw-material mixture which contains at least one of a monomer composition M11 which comprises a perfluoromonomer represented by the formula m11 and a fluorinated monomer m11H having at least some of fluorine atoms of said perfluoromonomer substituted by hydrogen atoms, and a monomer composition M12 which comprises a perfluoromonomer represented by formula m12 and a fluorinated monomer m12H having at least some of fluorine atoms of said perfluoromonomer substituted by hydrogen atoms, wherein the total amount of the fluorinated monomer m11H and the fluorinated monomer m12H is from 10 to 1,100 ppm to the total amount of the monomer composition M11 and the monomer composition M12.

公开(公告)号：US20210070903A1

公开(公告)日：2021-03-11

申请号：US17061703

申请日：2020-10-02

Applicant: AGC Inc.

Inventor： Susumu SAITO ,  Satoru HOMMURA ,  Hiroyuki WATABE

IPC: C08F214/18 ,  C08J5/22 ,  H01M8/1088 ,  H01M8/1039 ,  H01M8/1004

Abstract: To provide a method for producing a fluorinated polymer, in which it is possible to efficiently and easily control the molecular weight to be proper when polymerizing a perfluoromonomer having a dioxolane ring containing a polymerizable double bond in the ring skeleton, and in which the obtainable fluorinated polymer is less susceptible to a decrease in molecular weight even when contacted with a base. A method for producing a fluorinated polymer, comprising polymerizing a raw-material mixture which contains at least one of a monomer composition M11 which comprises a perfluoromonomer represented by the formula m11 and a fluorinated monomer m11H having at least some of fluorine atoms of said perfluoromonomer substituted by hydrogen atoms, and a monomer composition M12 which comprises a perfluoromonomer represented by formula m12 and a fluorinated monomer m12H having at least some of fluorine atoms of said perfluoromonomer substituted by hydrogen atoms, wherein the total amount of the fluorinated monomer mil H and the fluorinated monomer m12H is from 10 to 1,100 ppm to the total amount of the monomer composition M11 and the monomer composition M12.

公开(公告)号：US20230307680A1

公开(公告)日：2023-09-28

申请号：US18325154

申请日：2023-05-30

Applicant: AGC Inc.

Inventor： Susumu SAITO ,  Satoru HOMMURA ,  Takeshi HIRAI

IPC: H01M8/1039 ,  C08F214/26 ,  H01B1/06 ,  C08J5/22 ,  H01M8/1023 ,  H01M8/1088 ,  H01M8/1067 ,  C08F2/04 ,  C08F14/26 ,  H01M8/1004

CPC classification number: H01M8/1039 ,  C08F214/26 ,  H01B1/06 ,  C08J5/22 ,  H01M8/1023 ,  H01M8/1088 ,  H01M8/1067 ,  C08F2/04 ,  C08F14/26 ,  H01M8/1004 ,  H01M2300/0082 ,  H01M2008/1095

Abstract: To provide an electrolyte material which has a high proton conductivity and which is excellent in hot water resistance.
An electrolyte material which is formed of a polymer H having units represented by the formula u1 and units based on tetrafluoroethylene, wherein the polymer H has an equivalent weight EW of from 400 to 550 g/eq, and the mass reduction ratio when immersed in hot water at 120° C. for 24 hours is at most 15 mass %:




wherein Q11 is a perfluoroalkylene group which may have an etheric oxygen atom, Q12 is a single bond or a perfluoroalkylene group which may have an etheric oxygen atom, Y1 is a fluorine atom or the like, s is 0 or 1, Rf1 is a perfluoroalkyl group which may have an etheric oxygen atom, X1 is an oxygen atom or the like, a is 0 when X1 is an oxygen atom, and Z+ is H+ or the like.

公开(公告)号：US20210328247A1

公开(公告)日：2021-10-21

申请号：US17304879

申请日：2021-06-28

Applicant: AGC Inc.

Inventor： Masako KAWAMOTO ,  Satoru HOMMURA

IPC: H01M8/1039 ,  H01M4/92 ,  H01M8/1004 ,  H01M8/1025

Abstract: To provide a catalyst layer, a catalyst layer forming liquid, and a membrane electrode assembly, capable of forming a fuel cell excellent in power generation efficiency.
The catalyst layer of the present invention comprises a supported catalyst having a carrier containing a metal oxide and a catalyst supported on the carrier; and a polymer having at least one type of units containing a cyclic ether structure, selected from the group consisting of units (u11), units (u12), units (u21) and units (u22), and having an ion-exchange group, wherein the total of the content of the units containing a cyclic ether structure is at least 30 mol % to all units which the polymer contains:

公开(公告)号：US20220367896A1

公开(公告)日：2022-11-17

申请号：US17849795

申请日：2022-06-27

Applicant: AGC INC.

Inventor： Masako KAWAMOTO ,  Satoru HOMMURA

IPC: H01M8/1025 ,  H01M8/1004 ,  H01M4/96

Abstract: The present invention provides a catalyst layer, a catalyst layer ink and a membrane-electrode assembly which enable provision of fuel cells with high power efficiency. The catalyst layer of the present invention comprises a carbon alloy catalyst and an ion exchange polymer which comprises at least one species of units having a cyclic ether structure selected from the group consisting of units represented by the formula (u11), units represented by the formula (u12), units represented by the formula (u21), units represented by the formula (u22) and units represented by the formula (u24).

公开(公告)号：US20190140299A1

公开(公告)日：2019-05-09

申请号：US16238595

申请日：2019-01-03

Applicant: AGC Inc.

Inventor： Susumu SAITO ,  Satoru HOMMURA

IPC: H01M8/1039 ,  C08F214/24 ,  C08F214/26 ,  H01M8/1004

Abstract: To provide an electrolyte material having a low hydrogen gas permeability and excellent hot water resistance.An electrolyte material comprising a polymer having units represented by the following formula u1 and units based on chlorotrifluoroethylene at the specific proportion: wherein Q11 is a perfluoroalkylene group which may have an etheric oxygen atom, Q12 is a single bond or a perfluoroalkylene group which may have an etheric oxygen atom, Y1 is a fluorine atom or the like, s is 0 or 1, Rf1 is a perfluoroalkyl group which may have an etheric oxygen atom, X1 is an oxygen atom or the like, a is 0 when X1 is an oxygen, and Z+ is H+ or the like.