COATING COMPOSITION COMPRISING AN AQUEOUS DISPERSION OF FLUOROPOLYMER PARTICLES

A coating composition having (i) an aqueous dispersion of fluoropolymer particles comprising a non-melt processible polymer of tetrafluoroethylene, (ii) a fluorinated surfactant, (iii) a non-ionic non-fluorinated surfactant and (iv) a non-fluorinated polymer, wherein the fluorinated surfactant is se...

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Hauptverfasser: KASPAR, HARALD, MAURER, ANDREAS, SCHULZ, JAY F, MOORE, GEORGE G.I, DADALAS, MICHAEL C, MAYER, LUDWIG, JUERGENS, MICHAEL, KOENIGSMANN, HERBERT, ZIPPLIES, TILMAN C, HINTZER, KLAUS, SCHWERTFEGER, WERNER, LOCHHAAS, KAI, FLYNN, RICHARD M
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A coating composition having (i) an aqueous dispersion of fluoropolymer particles comprising a non-melt processible polymer of tetrafluoroethylene, (ii) a fluorinated surfactant, (iii) a non-ionic non-fluorinated surfactant and (iv) a non-fluorinated polymer, wherein the fluorinated surfactant is selected from fluorinated carboxylic acids or salts thereof of the general formula (I): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ [R f -O-L-COO - ] i X i+ €ƒ€ƒ€ƒ€ƒ€ƒ(I) wherein L represents a linear partially or fully fluorinated alkylene group or an aliphatic hydrocarbon group, R f represents a linear partially or fully fluorinated aliphatic group or a linear partially or fully fluorinated aliphatic group interrupted with one or more oxygen atoms, X i+ represents a cation having the valence i and i is 1, 2 or 3.