公开(公告)号：US20230383033A1

公开(公告)日：2023-11-30

申请号：US18449845

申请日：2023-08-15

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: C08F214/26

CPC classification number: C08F214/262

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 3.2 to 3.7% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of 22.0 to 27.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20220266485A1

公开(公告)日：2022-08-25

申请号：US17680911

申请日：2022-02-25

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: B29C45/00

Abstract: Provided is an injection molding method for obtaining an injection molded article using an injection molding machine by means of filling a mold cavity of a mold with a molten copolymer from a nozzle of the injection molding machine, wherein the minimum thickness of the mold cavity is 0.8 mm or less, the total projected area of the mold is 1 cm2 or more, and the copolymer is a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, wherein the number of functional groups is 100 or less per 106 main-chain carbon atoms of the copolymer.

公开(公告)号：US20250034301A1

公开(公告)日：2025-01-30

申请号：US18889006

申请日：2024-09-18

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 10.4 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 1.7% 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 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：US20250011499A1

公开(公告)日：2025-01-09

申请号：US18894291

申请日：2024-09-24

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: C08F214/26 ,  C08J5/18

Abstract: Provided is a copolymer comprising tetrafluoroethylene unit and perfluoro(ethyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(ethyl vinyl ether) unit of 4.5 to 6.2% 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 the number of functional groups of 20 or less per 106 main-chain carbon atoms.

公开(公告)号：US20250011497A1

公开(公告)日：2025-01-09

申请号：US18893024

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 fluoro(alkyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.4 to 10.2% by mass with respect to the whole of the monomer units, a content of fluoro(alkyl vinyl ether) unit of 0 to 0.3% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 2.5 to 4.4 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：US20250011494A1

公开(公告)日：2025-01-09

申请号：US18891549

申请日：2024-09-20

Applicant: DAIKIN INDUSTRIES, LTD.

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

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 4.3 to 6.0% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.7 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：US20250002624A1

公开(公告)日：2025-01-02

申请号：US18885918

申请日：2024-09-16

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 9.5 to 10.68 by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 0.5 to 1.5% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.8 to 4.4 g/10 min.

公开(公告)号：US20240018285A1

公开(公告)日：2024-01-18

申请号：US18452808

申请日：2023-08-21

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yukari YAMAMOTO ,  Yumi ZENKE

IPC: C08F214/26 ,  C08F214/28 ,  C08K5/14 ,  H01B3/44

CPC classification number: C08F214/262 ,  C08F214/282 ,  C08K5/14 ,  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 7.0 to 12.0% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 1.5 to 2.9% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 40 to 60 g/10 min.

公开(公告)号：US20230399443A1

公开(公告)日：2023-12-14

申请号：US18454133

申请日：2023-08-23

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: C08F214/26 ,  C09D127/18 ,  H01B3/44 ,  B29C45/00

CPC classification number: C08F214/262 ,  C09D127/18 ,  H01B3/445 ,  B29C45/0001 ,  C08F2800/20 ,  B29K2027/18

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 4.6 to 5.2% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 22.0 to 28.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230399437A1

公开(公告)日：2023-12-14

申请号：US18452109

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 the hexafluoropropylene unit of 9.6 to 10.5% by mass with respect to the whole of the monomer units, a content of the 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 17.0 to 40.0 g/10 min.