公开(公告)号：US20230391930A1

公开(公告)日：2023-12-07

申请号：US18452868

申请日：2023-08-21

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yukari YAMAMOTO ,  Yumi ZENKE

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

CPC classification number: C08F214/262 ,  C08J5/18 ,  C09D127/18 ,  H01B3/445 ,  C08F2800/20 ,  C08J2327/18

Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 7.6 to 10.3% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 1.3 to 2.9% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.7 g/10 min or higher and lower than 4.5 g/10 min.

公开(公告)号：US20230391926A1

公开(公告)日：2023-12-07

申请号：US18452015

申请日：2023-08-18

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yukari YAMAMOTO ,  Yumi ZENKE

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 perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 10.3 to 12.0% by mass with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 1.6 to 2.9% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 5.0 to 40.0 g/10 min.

公开(公告)号：US20230383032A1

公开(公告)日：2023-11-30

申请号：US18449061

申请日：2023-08-14

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: C08F214/26 ,  C09K3/10 ,  F16J15/10

CPC classification number: C08F214/262 ,  C09K3/1009 ,  F16J15/10

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 2.26 to 2.75 mol % with respect to the whole of the monomer units, a melt flow rate at 372° C. of 4.0 to 11.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230227594A1

公开(公告)日：2023-07-20

申请号：US18192101

申请日：2023-03-29

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yukari YAMAMOTO ,  Tadaharu Isaka ,  Yumi Zenke ,  Hayato Tsuda ,  Keizou Shiotsuki

IPC: C08F214/26 ,  H01B3/44 ,  H01B7/02

CPC classification number: C08F214/267 ,  H01B3/445 ,  H01B7/02

Abstract: A copolymer containing tetrafluoroethylene unit and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the perfluoro(propyl vinyl ether) unit of 5.8 to 7.6% by mass with respect to the whole of the monomer units, a melt flow rate of 50 to 68 g/10 min, and the number of functional groups of —CF═CF2, —CF2H, —COF, —COOH, —COOCH3, —CONH2 and —CH2OH of 50 or less per 106 main-chain carbon atoms. Also disclosed is an injection molded article and member to be compressed containing the copolymer, and a coated electric wire including a coating layer containing the copolymer.