Ethene, 1,1,2,2-tetrafluoro-, polymer with 1,1,2-trifluoro-2-(1,1,2,2,2-pentafluoroethoxy)ethene Ethene, tetrafluoro-, polymer with trifluoro(pentafluoroethoxy)ethene Ethene, trifluoro(pentafluoroethoxy)-, polymer with tetrafluoroethene Ether, pentafluoroethyl trifluorovinyl, polymer with tetrafluoroethylene Ethylene, tetrafluoro-, polymer with pentafluoroethyl trifluorovinyl ether Pentafluoroethyl trifluorovinyl ether-tetrafluoroethylene polymer Perfluoro(ethyl vinyl ether)-tetrafluoroethylene copolymer Perfluoroethoxyethylene-tetrafluoroethylene copolymer PF 059 Teflon PFA 951HP Plus Tetrafluoroethylene-perfluoro(ethyl vinyl ether) copolymer Tetrafluoroethylene-perfluoroethyl perfluorovinyl ether copolymer