copolymerized units of tetrafluoroethylene, perfluoro (alkyl vinyl) ether and a cure site monomer, the cure site monomer selected from the group consisting of vinylidene fluoride, perfluoro-(8-cyano-5-methyl-3,6-dioxa- 1-octene), bromotetrafluorobutene or perfluoro (2-phenoxypropyl vinyl ether)...
The elastomers are terpolymers derived from tetrafluoroethylene, a perfluoroalkyl perfluorovinyl ether with alkyl of 1 to 5 carbon atoms, and up to 2 mole percent of a cure site monomer of vinylidene fluoride, 4-bromo-3,3,4,4-tetrafluorobutene-1, or 8-cyano-5-methyl-3,6-dioxa-1-octene...
The elastomers are terpolymers derived from tetrafluoroethylene, a perfluoroalkyl perfluorovinyl ether with alkyl of 1 to 5 carbon atoms, and up to 2 mole percent of a cure site monomer of vinylidene fluoride, 4-bromo-3,3,4,4-tetrafluorobutene-1, or 8-cyano-5-methyl-3,6-dioxa-1-octene...