| 摘要 |
An aqueous dispersion of a fluorine-containing copolymer comprising, as copolymerization units, (A) a (meth)acrylate represented by [CH 2 =CHRCOO(NH) r R 1 NR 2 R 3 R 4 ] + Y - , (B) a perfluoroalkylalkyl (meth)acrylate represented by C m F 2m+1 C p H 2p (NR'SO 2 ) q OCOCR=CH 2 or a polyfluoroalkylalkyl (meth)acrylate thereof, or a polyfluoroalkyl (meth)acrylate represented by C n F 2n+1 (CH 2 CF 2 ) a (CF 2 CF 2 ) b (CH 2 CH 2 ) c OCOCR=CH 2 , (C) benzyl (meth)acrylate, (D) a fluorine-free polymerizable monomer other than components (A) and (C) , and (E) a crosslinkable group-containing polymerizable monomer. The aqueous dispersion can improve the dispersion stability of an aqueous dispersion of a water- and oil-repellent when used as a water- and oil-repellent comprising the fluorine-containing copolymer as an active component. |
