| abstract |
Compositions of specialty fluoroelastomers containing copolymerized units of tetrafluoroethylene, propylene, optionally vinylidene fluoride, and a cure site monomer selected from the group consisting of (i) trifluoroethylene, (ii) 3,3,3-trifluoropropene-1, (iii) 1,2,3,3,3-pentafluoropropylene, (iv) 1,1,3,3,3-pentafluoropropylene, and (v) 2,3,3,3-tetrafluoropropene are readily curable with polyhydroxy curing systems. The resulting cured articles have a combination of excellent resistance to alkaline fluids, superior tensile properties and compression set resistance. |