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.

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 2.14 to 3.00 mol % with respect to the whole of the monomer units, a melt flow rate at 372° C. of 33.0 to 50.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

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 4.10 to 5.20 mol % with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 0.53 to 0.86 mol % with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.7 to 2.5 g/10 min.

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.

Abstract: Provided is an injection molded article including a pipe body section forming a flow path of a fluid, and a flange section formed on one end or both ends of the pipe body section, wherein the maximum thickness of the flange section is 2 to 12 mm, the injection molded article contains a copolymer containing tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 2.8 to 6.0% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 4.0 g/10 min or higher and lower than 11.0 g/10 min, and the number of functional groups of the copolymer is 50 or less.

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 7.6 to 10.3% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 1.3 to 2.9% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.7 g/10 min or higher and lower than 4.5 g/10 min.

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 10.3 to 12.0% by mass with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 1.6 to 2.9% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 5.0 to 40.0 g/10 min.

Abstract: Provided an injection molded article obtained by injection molding a copolymer using a mold provided with a gate, wherein the copolymer contains tetrafluoroethylene (TFE) unit and a fluoro(alkyl vinyl ether) (PAVE) unit, the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 3.5 to 4.7% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 22.0 to 35.0 g/10 min, the number of functional groups of the copolymer is 20 or less per 106 main-chain carbon atoms, and the injection molded article has a gate section corresponding to the gate of the mold, and the ratio of the maximum flow length from the gate section of the injection molded article (a) to the average value of the product thickness on the maximum flow length (b), ((a)/(b)), is 80 to 200.

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 3.5 to 4.2% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of 34.0 to 42.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

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 4.2 to 4.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 19.0 to 27.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

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 7.0 to 9.4% by mass with respect to the whole of the monomer units, a content of the fluoro(alkyl vinyl ether) unit of 1.3 to 2.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 15 to 40 g/10 min, and the number of functional groups of 90 or less per 106 main-chain carbon atoms.

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 3.55 to 4.10% by mol with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 0.39 to 0.90% by mol with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 1.0 to 9.0 g/10 min.

Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit, and a perfluoro(ethyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 10.5 to 11.6% by mass with respect to the whole of the monomer units, a content of the perfluoro(ethyl vinyl ether) unit of 1.2 to 2.4% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 28.0 to 40.0 g/10 min, and a total number of —CF2H, carbonyl group-containing terminal groups, —CF?CF2 and —CH2OH of 25 or less per 106 main-chain carbon atoms.

Abstract: Provided is a coated electric wire having a core wire, and a coating layer installed on the periphery of the core wire, wherein the coating layer contains a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, the content of perfluoro(propyl vinyl ether) unit in the copolymer is 4.8 to 5.5% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 28.0 to 37.0 g/10 min, and the number of functional groups of the copolymer is 50 or less per 106 main-chain carbon atoms.

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 10.5 to 11.8% 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, a melt flow rate at 372° C. of 17.0 to 40.0 g/10 min, and a total number of —CF2H, carbonyl group-containing terminal groups, —CF?CF2 and —CH2OH of 90 or less per 106 main-chain carbon atoms.

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.

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 5.1% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 11.0 to 17.0 g/10 min, and the number of functional groups of 40 or less per 106 main-chain carbon atoms.

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 10.4 to 12.0% by mass with respect to the whole of the monomer units, a content of the fluoro(alkyl vinyl ether) unit of 1.3 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 5.0 g/10 min, and the number of functional groups of 70 or less per 106 main-chain carbon atoms.

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 5.0 to 7.0% by mass with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 1.5 to 2.6% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 9 to 40 g/10 min.

Abstract: There is provided a fluorine-containing copolymer, containing tetrafluoroethylene unit, hexafluoropropylene unit, and a fluoro(alkyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 9.5 to 11.5% by mass with respect to the whole of the monomer units, a content of the fluoro(alkyl vinyl ether) unit of 0 to 0.4% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 4.0 to 7.7 g/10 min, and a total number of —CF2H, carbonyl group-containing terminal groups, —CF?CF2 and —CH2OH of 80 or less per 106 main-chain carbon atoms.