TREA

COPOLYMER, INJECTION MOLDED ARTICLE AND MEMBER TO BE COMPRESSED

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Information

  • Patent Application
  • 20230295356
  • Publication Number
    20230295356
  • Date Filed
    March 28, 2023
    a year ago
  • Date Published
    September 21, 2023
    7 months ago
Information
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.
Description
Claims
  • 1. A copolymer, comprising tetrafluoroethylene unit and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the perfluoro(propyl 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 -CF=CF2, -CF2H, -COF, -COOH, -COOCH3, -CONH2 and -CH2OH of 50 or less per 106 main-chain carbon atoms.
  • 2. An injection molded article, comprising the copolymer according to claim 1.
  • 3. A member to be compressed, comprising the copolymer according to claim 1.
  • 4. An extrusion formed article, comprising the copolymer according to claim 1.
  • 5. A coated electric wire, comprising a coating layer comprising the copolymer according to claim 1.
  • 6. A film, comprising the copolymer according to claim 1.
  • 7. The copolymer according to claim 1, wherein the copolymer has a melting point of 305 to 317° C.
Priority Claims (1)
Number Date Country Kind
2020-166523 Sep 2020 JP national
Continuations (1)
Number Date Country
Parent PCT/JP2021/036301 Sep 2021 WO
Child 18191412 US