Patent ID: 6359089
Filing Date: 2002-03-19
Classification: C07C,C08F

Abstract:
A curable composition comprising:A. a fluoroelastomer comprising copolymerized units of a first monomer, said first monomer being a fluoroolefin selected from the group consisting of vinylidene fluoride and tetrafluoroethylene; copolymerized units of a second monomer, different from said first monomer, said second monomer selected from the group consisting of i) fluoroolefins, ii) hydrocarbon olefins, iii) perfluoro(alkyl vinyl)ethers and iv) perfluoro(alkoxy vinyl) ethers; and copolymerized units of a fluorinated vinyl ether cure site monomer of the formula CF3CHFCF2â€”(O)nâ€”(CH2)mâ€”(CF2)pâ€”Rfâ€”OCF&boxH;CF2, wherein Rf is a C1-C8 perfluoroalkyl group or a C1-C8 perfluoroalkoxy group, n is 0 or 1, m is an integer from 1 to 3, and p is an integer from 1 to 4; B. a polyhydroxy crosslinking agent; C. a cure accelerator; and D. a metal oxide or metal hydroxide.