Patent ID: 7666964

Claim:
A copolymer comprising repeating units derived from at least one co-reactant comprising two or more mercapto functional groups, and repeating units from a fluoroacrylate represented by the formula: C 4 F 9 —X—OC(O)NH—A—HNC(O)O—(C p H 2p )(O)COC(R′)═CH 2 wherein: R=H or an alkyl group of 1 to 4 carbon atoms, m=2 to 8, R f =C n F 2n+1 , n=1 to 5, y=0 to 6, q=1 to 8, A=an unbranched symmetric alkylene group, arylene group, or aralkylene group, p=2 to 30, and R′=H, CH 3 , or F.