Patent ID: 8314037

Claim:
A fluoropolymer composition comprising monomers copolymerized in the following percentages by weight: (a) from about 20% to about 95% of a fluoroalkyl monomer, or mixture of monomers, of formula (I) R f 1 -L-X—C(O)—C(R)═CH 2 (I) wherein R f 1 is a monovalent, partially or fully fluorinated, linear or branched, alkyl radical having from about 2 to about 100 carbon atoms; optionally interrupted by 1 to about 50 oxygen atoms; wherein the ratio of carbon atoms to oxygen atoms is at least about 2:1 and no oxygen atoms are bonded to each other; L is a bond or a linear or branched divalent linking group having 1 to about 20 carbon atoms, said linking group optionally interrupted by 1 to about 4 hetero-radicals selected from the group consisting of —O—, —NR 1 —, —S—, —SO—, —SO 2 —, and —N(R 1 )C(O)— wherein R 1 is H or C 1 to C 6 alkyl, and said linking group optionally substituted with CH 2 Cl; X is —O—, —N R 1 —, or —S—; R is hydrogen, or CH 3 ; (b) from about 5% to about 80% of at least one of: (i) an alkyl (meth)acrylate monomer having a linear, branched or cyclic alkyl group of from about 6 to about 18 carbons; or (ii) one or more ionizable water solvatable monomers; and (c) from about 0.05% to about 2% non-fluorinated polymerizable nanoparticles, wherein the polymerizable nanoparticles have ethylenically unsaturated moieties linked to the particle.