WATER AND OIL REPELLENT AQUEOUS DISPERSION AND PROCESS FOR PRODUCING IT

摘要

To provide a water and oil repellent aqueous dispersion which is excellent in water and oil repellency and the waterdrop rolling property and has dispersion stability even in the presence of co-agents and contaminants in the treatment bath. A process comprising emulsifying a stock composition containing a polymerizable monomer containing a (meth)acrylate having a polyfluoroalkyl group as an essential component, a non-fluorine type surfactant containing no aromatic group, water and a solvent having a viscosity of at least 3 cP at 25.degree.C under pressure and polymerizing the stock composition, and a water and oil repellent aqueous dispersion obtained by the process.