CONCENTRATED WATER-BASE DISPERSION OF TETRAFLUOROETHYLENE POLYMER, AND PRODUCTION AND USE THEREOF

Concentrated, aqueous, colloidal dispersions of tetrafluoroethylene polymers having a polymer solids content of 25 to 70% by weight, which comprise, as the dispersion stabilizer, an amine oxide of the formula (I) in which R1 is an alkyl radical having 6 to 22 carbon atoms or a mixture of such alkyl...

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Hauptverfasser: KAARUHAINTSU SHIYUTAARU, UORUFUGANGU NOIMAN, FUUBERUTO ZAITSU
Format: Patent
Sprache:eng
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Zusammenfassung:Concentrated, aqueous, colloidal dispersions of tetrafluoroethylene polymers having a polymer solids content of 25 to 70% by weight, which comprise, as the dispersion stabilizer, an amine oxide of the formula (I) in which R1 is an alkyl radical having 6 to 22 carbon atoms or a mixture of such alkyl radicals and R2 is an alkyl radical having 1 to 22 carbon atoms or a mixture of such alkyl radicals, and in which R1 and R2 are identical or different and 50 to 0% by weight of the alkyl radicals R1 and R2 can be replaced by alkenyl radicals having 6 to 22 carbon atoms and having 1 to 3 C=C double bonds, are obtained by concentration with addition of these dispersion stabilizers. The dispersions are used for impregnating yarns and textile sheet-like structures.