公开(公告)号：US20250011488A1

公开(公告)日：2025-01-09

申请号：US18888386

申请日：2024-09-18

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu Isaka ,  Yumi Zenke ,  Yukari Yamamoto ,  Hayato Tsuda

IPC: C08F214/26

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 4.4 to 5.28 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 11.0 to 16.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230399440A1

公开(公告)日：2023-12-14

申请号：US18452892

申请日：2023-08-21

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 perfluoro(propyl vinyl ether) unit, wherein the content of hexafluoropropylene unit is 7.6 to 10.3% by mass with respect to the whole of the monomer units; the content of perfluoro(propyl vinyl ether) unit is 1.3 to 2.4% by mass with respect to the whole of the monomer units; and the melt flow rate at 372° C. is 4.5 to 9.5 g/10 min.

公开(公告)号：US20230399435A1

公开(公告)日：2023-12-14

申请号：US18451921

申请日：2023-08-18

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 perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.5 to 11.4% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.5 to 1.6% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 4.1 to 6.9 g/10 min, and a total number of carbonyl group-containing terminal groups and —CF═CF2 and —CH2OH of 90 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230295356A1

公开(公告)日：2023-09-21

申请号：US18191412

申请日：2023-03-28

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi Zenke ,  Yukari Yamamoto ,  Hayato Tsuda ,  Takahisa Aoyama

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

CPC classification number: C08F214/262 ,  C09D127/18 ,  H01B3/445

Abstract: A copolymer containing tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, and having a content of the fluoro(alkyl vinyl ether) unit of 2.0 to 2.8% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 5 to 23 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230235159A1

公开(公告)日：2023-07-27

申请号：US18192053

申请日：2023-03-29

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: C08L27/18 ,  H01B3/44

CPC classification number: C08L27/18 ,  H01B3/445 ,  C08L2205/025

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 2.8 to 3.5% by mass with respect to the whole of the monomer units, a melt flow rate of 31 to 38 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms, 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, a member to be compressed and a coated electric wire including the copolymer.

公开(公告)号：US20250011487A1

公开(公告)日：2025-01-09

申请号：US18888343

申请日：2024-09-18

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi Zenke ,  Yukari Yamamoto

IPC: C08F214/26 ,  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 11.4 to 12.2% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 0.9 to 1.78 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 4.0 to 13.0 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 90 or less.

公开(公告)号：US20230406975A1

公开(公告)日：2023-12-21

申请号：US18449778

申请日：2023-08-15

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi Zenke ,  Yukari Yamamoto ,  Hayato Tsuda

IPC: C08F214/26 ,  H01B3/44

CPC classification number: C08F214/262 ,  H01B3/445

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 4.9 to 5.7% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 45.0 to 55.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230399442A1

公开(公告)日：2023-12-14

申请号：US18453487

申请日：2023-08-22

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 perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 10.3 to 12.2% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 1.2 to 1.6% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 13.0 to 17.0 g/10 min.

公开(公告)号：US20230399431A1

公开(公告)日：2023-12-14

申请号：US18451455

申请日：2023-08-17

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi Zenke ,  Yukari Yamamoto ,  Hayato Tsuda ,  Tatsuya Higuchi

IPC: C08F214/26 ,  H01B3/44 ,  F16L9/127

CPC classification number: C08F214/262 ,  H01B3/445 ,  F16L9/127

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 2.8 to 3.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 2.8 to 4.0 g/10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230391913A1

公开(公告)日：2023-12-07

申请号：US18449873

申请日：2023-08-15

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 comprising tetrafluoroethylene unit, hexafluoropropylene unit, and a perfluoro(ethyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 10.5 to 11.6% by mass with respect to the whole of the monomer units, a content of the perfluoro(ethyl vinyl ether) unit of 1.2 to 2.4% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 28.0 to 40.0 g/10 min, and a total number of —CF2H, carbonyl group-containing terminal groups, —CF═CF2 and —CH2OH of 25 or less per 106 main-chain carbon atoms.