Syonyms Name: Ethene, tetrafluoro-, polymer with trifluoro(trifluoromethoxy)ethene; tetrafluoro-ethen polymer with trifluoro(trifluoromethoxy)ethene; Tetrafluoroethene polymer with trifluoro(trifluoro methoxy)ethene; Tetrafluoroethylene-trifluoromethyl trifluorovinyl e