公开(公告)号：US20230399433A1

公开(公告)日：2023-12-14

申请号：US18451524

申请日：2023-08-17

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi ZENKE ,  Yukari YAMAMOTO

IPC: C08F214/26 ,  C08F214/28 ,  H01B3/44

CPC classification number: C08F214/262 ,  C08F214/282 ,  H01B3/445

Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and a fluoro(alkyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 11.5 to 12.5% by mass with respect to the whole of the monomer units, a content of the fluoro(alkyl vinyl ether) unit of 0 to 0.5% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.8 to 4.0 g/10 min, and a total number of —CF2H, carbonyl group-containing terminal groups, —CF═CF2 and —CH2OH of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230399430A1

公开(公告)日：2023-12-14

申请号：US18451227

申请日：2023-08-17

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yukari YAMAMOTO ,  Yumi ZENKE

IPC: C08F214/26 ,  C09D127/18 ,  C08J5/18 ,  H01B3/44

CPC classification number: C08F214/262 ,  C09D127/18 ,  C08J5/18 ,  H01B3/445 ,  C08F2800/10 ,  C08J2327/18

Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit, and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 4.10 to 5.20 mol % with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 0.53 to 0.86 mol % with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.7 to 2.5 g/10 min.

公开(公告)号：US20220278403A1

公开(公告)日：2022-09-01

申请号：US17679765

申请日：2022-02-24

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Hayato TSUDA ,  Yumi ZENKE ,  Yukari YAMAMOTO ,  Takahisa AOYAMA

IPC: H01M50/193 ,  C08F214/26

Abstract: A member for a non-aqueous electrolyte battery containing a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, in which the number of functional groups per 106 carbon atoms of a main chain of the copolymer is 100 or less, and a melt flow rate of the copolymer is 20 to 30 g/10 minutes.

公开(公告)号：US20220181729A1

公开(公告)日：2022-06-09

申请号：US17679831

申请日：2022-02-24

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Hayato TSUDA ,  Yumi ZENKE ,  Yukari YAMAMOTO ,  Takahisa AOYAMA

IPC: H01M50/193 ,  H01M50/188

Abstract: A power storage assembly having a gasket containing a copolymer containing a tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, wherein the copolymer has a content of the fluoro(alkyl vinyl ether) unit of 2.0 to 6.0% by mass with respect to the whole of the monomer units, a melt flow rate of 0.5 to 55 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20220153889A1

公开(公告)日：2022-05-19

申请号：US17592754

申请日：2022-02-04

Applicant: Daikin Industries, Ltd.

Inventor： Yukari YAMAMOTO ,  Tadaharu ISAKA ,  Yumi ZENKE ,  Ryouichi FUKAGAWA

IPC: C08F214/18 ,  C08F214/28 ,  C08F214/26 ,  C08F2/18 ,  C08K5/095

Abstract: A method for producing a fluoropolymer which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a fluorine-containing diacyl peroxide represented by the formula (1): XRfaC(═O)OOC(═O)RfbY (wherein X and Y are each independently H or F; and Rfa and Rfb are each independently a C1-C6 linear or branched perfluoroalkylene group optionally containing an ether bond) and a fluorine-containing carboxylic acid represented by the following formula (2): Z2RfcCOOH (wherein Z2 is H or F; and Rfc is a C1-C3 linear or branched perfluoroalkylene group optionally containing an ether bond when Z2 is H, and Rfc is a C1 or C2 linear or branched perfluoroalkylene group optionally containing an ether bond when Z2 is F) to provide a fluoropolymer.

公开(公告)号：US20250019476A1

公开(公告)日：2025-01-16

申请号：US18893198

申请日：2024-09-23

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi ZENKE ,  Yukari YAMAMOTO ,  Takahisa AOYAMA

IPC: C08F214/26 ,  C08J5/18

Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 2.4 to 3.48 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.8 to 1.4 g/10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.

公开(公告)号：US20250011504A1

公开(公告)日：2025-01-09

申请号：US18893036

申请日：2024-09-23

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi ZENKE ,  Yukari YAMAMOTO

IPC: C08F214/28 ,  H01B3/44

Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.4 to 10.7% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.5 to 1.7% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 13.0 to 18.0 g/10 min.

公开(公告)号：US20250011502A1

公开(公告)日：2025-01-09

申请号：US18889631

申请日：2024-09-19

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi ZENKE ,  Yukari YAMAMOTO

IPC: C08F214/28 ,  H01B3/44

Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 8.0 to 9.4% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 0.6 to 1.58 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 2.9 to 5.3 g/10 min, and a total number of a carbonyl group-containing terminal group, —CF—CF2 and —CH2OH per 106 main-chain carbon atoms of 70 or less.

公开(公告)号：US20250011496A1

公开(公告)日：2025-01-09

申请号：US18892985

申请日：2024-09-23

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yukari YAMAMOTO ,  Tadaharu ISAKA ,  Yumi ZENKE ,  Hayato TSUDA

IPC: C08F214/26 ,  C08J5/18

Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 3.8 to 4.38 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 6.0 to 9.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20250011495A1

公开(公告)日：2025-01-09

申请号：US18892976

申请日：2024-09-23

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi ZENKE ,  Yukari YAMAMOTO

IPC: C08F214/26 ,  C09D127/18 ,  H01B3/44

Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 11.5 to 12.5% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.3 to 0.8% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.9 to 5.8 g/10 min.