Patent ID: 6933338

Claim:
A water- and oil-repellent composition which comprises (A) the following polymer, (B) an aqueous medium and (C) a surfactant in a mass ratio of (A)/(B)/(C)=100/100-500/1-10: Polymer (A): a copolymer containing (1) a monomer unit based on a (meth)acrylate having a polyfluoroalkyl group, (2) a monomer unit based on an alkyl(meth)acrylate having a C 16 -C 12 alkyl group, (3) a monomer unit based on an alkyl(meth)acrylate having a C 1 -C 22 alkyl group, and (4) a monomer unit based on at least one compound selected from the group consisting of 2-isocyanate ethyl methacrylate, 1,3,3-trimethyl-4-isocyanate cyclohexylmethylamidoxyethyl methacrylate of Formula 1 and 1,3,3-trimethyl-4-isocyanate cyclohexylmethylamidoxyethyl acrylate of Formula 2, the isocyanate group of which is blocked: