In addition to the surfactant, other conventional additives such as pigments, acid acceptors and fillers may be incorporated into the aqueous dispersion.As the fluorine-containing resin (b), there are usable polytetrafluoroethylene, copolymers of tetrafluoroethylene and at least one of other ethylenically unsaturated monomers such as olefins (e.g. ethylene, propylene), haloolefins (e.g.hexafluorop