Copolymer, injection molded body, member to be compressed, and coated wire
AssigneeDaikin Industries, Ltd.
InventorsYukari Yamamoto, Tadaharu Isaka, Yumi Zenke, Hayato Tsuda, Keizou Shiotsuki
Life of this patent
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Abstract
A copolymer containing tetrafluoroethylene unit and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the perfluoro(propyl vinyl ether) unit of 5.8 to 7.6% by mass with respect to the whole of the monomer units, a melt flow rate of 50 to 68 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. Also disclosed is an injection molded article and member to be compressed containing the copolymer, and a coated electric wire including a coating layer containing the copolymer.
Claims4
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 5.8 to 7.6% by mass with respect to the whole of the monomer units, and a melt flow rate of 50 to 67.5 g/10 min, and a total number of functional groups of —CF═CF2, —CF2H, —COF, —COOH, —COOCH3, —CONH2 and —CH2OH is 50 or less per 106 main-chain carbon atoms.
Dependencies are inferred from the claim text.