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：US20250011500A1

公开(公告)日：2025-01-09

申请号：US18895515

申请日：2024-09-25

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: C08F214/26 ,  B29C45/00 ,  B29K27/18

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 5.6 to 6.38 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 17.1 to 23.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

公开(公告)号：US20250011486A1

公开(公告)日：2025-01-09

申请号：US18887392

申请日：2024-09-17

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 9.4 to 10.3% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 1.4 to 2.4% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 24.1 to 39.9 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 120 or less.

公开(公告)号：US20230406977A1

公开(公告)日：2023-12-21

申请号：US18452849

申请日：2023-08-21

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yukari YAMAMOTO ,  Yumi ZENKE

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

CPC classification number: C08F214/262 ,  C09D127/18 ,  F16L9/12 ,  B29C45/0001 ,  C08F2800/20 ,  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 9.4% 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 15 to 40 g/10 min.

公开(公告)号：US20230399439A1

公开(公告)日：2023-12-14

申请号：US18452878

申请日：2023-08-21

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yukari YAMAMOTO ,  Yumi ZENKE

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 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 7.0 to 8.5% by mass with respect to the whole of the monomer units, a content of the 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 9 to 15 g/10 min.

公开(公告)号：US20230399429A1

公开(公告)日：2023-12-14

申请号：US18450496

申请日：2023-08-16

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tadaharu ISAKA ,  Yumi ZENKE ,  Yukari YAMAMOTO

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 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 9.4 to 10.3% by mass with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 0.8 to 1.6% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 7.0 to 17.0 g/10 min.

公开(公告)号：US20230391919A1

公开(公告)日：2023-12-07

申请号：US18450567

申请日：2023-08-16

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(propyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 6.0 to 7.6% by mass with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 1.5 to 2.4% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 4.5 to 9.5 g/10 min.

公开(公告)号：US20230391914A1

公开(公告)日：2023-12-07

申请号：US18449898

申请日：2023-08-15

Applicant: DAIKIN INDUSTRIES,LTD.

Inventor： Tadaharu ISAKA ,  Yukari YAMAMOTO ,  Yuri ZENKE

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

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

Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and a fluoro(alkyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 7.5 to 10.3% by mass with respect to the whole of the monomer units, a content of the fluoro(alkyl vinyl ether) unit of 0.8 to 2.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.7 to 9.5 g/10 min, and a number of functional groups of 90 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230391911A1

公开(公告)日：2023-12-07

申请号：US18448291

申请日：2023-08-11

Applicant: DAIKIN INDUSTRIES, LTD.

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

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

CPC classification number: C08F214/262 ,  H01B3/445 ,  B29C45/0001 ,  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 4.4 to 6.0% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 7.5 to 11.0 g/10 min, and the number of functional groups of 40 or less per 106 main-chain carbon atoms.

公开(公告)号：US20230391909A1

公开(公告)日：2023-12-07

申请号：US18447877

申请日：2023-08-10

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 2.42 to 2.75 mol % with respect to the whole of the monomer units, a melt flow rate at 372° C. of 11.0 to 15.5 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.