| abstract |
This invention provides a fluoropolymer dispersion useful for coating applications, The dispersion is a homogeneous and non-ozone depleting dispersion comprising a lubricious fluoropolymer, an inert perfluorinated liquid, a polar solvent, and an effective amount of a surface active agent selected from the group consisting of: a. perfluoroaliphatic amidoalkanols; b. polymerized products formed from the reaction of a mixture comprising a hydrophilic monomer and a monomer of the general formula: <IMAGE> wherein p and q are integers between 1 and 4 inclusive, x and y are integers between 0 and 4 inclusive, m is 1 or 2, n is an integer between 3 and 10 inclusive, X' is either a methyl group or a single hydrogen atom, g is 0 or 1, and Q is a sulfonamido constituent group according to the formula: <IMAGE> wherein R1 is a hydrogen or a lower alkyl group having from 1 to 6 carbon atoms and wherein the hydrophilic monomer is present in an amount constituting inclusively between five and twenty-five weight percent of the reactant mixture when the polar solvent employed is a polar organic solvent and wherein the hydrophilic monomer is present in an amount constituting inclusively between one and twenty-five weight percent of the reactant mixture when the polar solvent employed is water; and c. Perfluorinated ether acids according to the general formula: <IMAGE> wherein z is between 1 and 10 inclusive, s is between 0 to 4, t is between 0 to 4, v between 0 to 5, w is 0 or 1, and Y is either F or CF3. |