Patent ID: 8197590

Claim:
a composition comprising: (A) a fluorine-containing urethane compound of the formula: [Rf-A 1 -Z—X 1 —OC(═O)NH—] m I[—NHC(═O)O—Y 1 ] n wherein, I is a group remaining after an isocyanate group is removed from an isocyanurate-modified diisocyanate, Rf is a perfluoroalkyl group having 1 to 6 carbon atoms, A 1 is a direct bond or a divalent organic group having 1 to 21 carbon atoms, Z is —S— or —SO 2 —, X 1 is a direct bond, or a divalent linear or branched aliphatic group having 1 to 5 carbon atoms optionally having at least one hydroxyl group, Y 1 is a monovalent organic group optionally having a hydroxyl group, m is the number of 1 to 15, n is the number of 0 to 14, and the total of m and n is the number of 2 to 15, and (B) a fluorine-containing polymer comprising repeating units derived from a fluorine-containing monomer of the formula: CH 2 ═C(—X)—C(═O)-A-Rf (I) wherein X is a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a CFX 1 X 2 group (in which X 1 and X 2 respectively represent a hydrogen atom, a fluorine atom or a chlorine atom), a cyano group, a linear or branched fluoroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted benzyl group, or a substituted or unsubstituted phenyl group; A is —O—Y 1 — (in which Y 1 is an aliphatic group having 1 to 10 carbon atoms, an aromatic or cycloaliphatic group having 6 to 10 carbon atoms, a —CH 2 CH 2 N(R 1 )SO 2 —(CH 2 CH 2 ) a — group (in which R 1 is an alkyl group having 1 to 4 carbon atoms, and a is 0 or 1) or a —CH 2 CH(OR 11 )CH 2 — group (in which R 11 is a hydrogen atom or an acetyl group)), or —Y 2 —[—(CH 2 ) m —Z—] p —(CH 2 ) n — (in which Y 2 is —O— or —NH—; Z is —S—or —SO 2 —; m is 1 to 10, n is 0 to 10, and p is 0 or 1); and Rf is a linear or branched perfluoroalkyl group having 1 to 6 carbon atoms.