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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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