INJECTION MOLDING METHOD
    22.
    发明申请

    公开(公告)号:US20220266485A1

    公开(公告)日:2022-08-25

    申请号:US17680911

    申请日:2022-02-25

    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.

    FLUORINE-CONTAINING COPOLYMER
    23.
    发明申请

    公开(公告)号:US20250034301A1

    公开(公告)日:2025-01-30

    申请号:US18889006

    申请日:2024-09-18

    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.

    FLUORINE-CONTAINING COPOLYMER
    25.
    发明申请

    公开(公告)号:US20250011497A1

    公开(公告)日:2025-01-09

    申请号:US18893024

    申请日:2024-09-23

    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.

    FLUORINE-CONTAINING COPOLYMER
    27.
    发明申请

    公开(公告)号:US20250002624A1

    公开(公告)日:2025-01-02

    申请号:US18885918

    申请日:2024-09-16

    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.

    FLUORINE-CONTAINING COPOLYMER
    30.
    发明公开

    公开(公告)号:US20230399437A1

    公开(公告)日:2023-12-14

    申请号:US18452109

    申请日:2023-08-18

    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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