VISCOSITY CONTROL FOR REDUCED FLUOROSURFACTANT AQUEOUS FLUOROPOLYMER DISPERSIONS BY THE ADDITION OF CATIONIC SURFACTANT

A stabilized aqueous fluoropolymer dispersion comprising fluoropolymer particles, wherein the dispersion contains less that about 300 ppm fluorosurfactant based on the weight of the dispersion and a cationic surfactant. The cationic surfactant aids in reducing the viscosity of the dispersion and pre...

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Bibliographische Detailangaben
1. Verfasser:	CAVANAUGH, ROBERT, JOHN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	A stabilized aqueous fluoropolymer dispersion comprising fluoropolymer particles, wherein the dispersion contains less that about 300 ppm fluorosurfactant based on the weight of the dispersion and a cationic surfactant. The cationic surfactant aids in reducing the viscosity of the dispersion and preferred cationic surfactants are volatile in coating or film casting operations involving drying and sintering of the dispersion. L'invention concerne une dispersion fluoropolymère aqueuse stabilisée comprenant des particules fluoropolymères, laquelle dispersion contient moins d'environ 300 ppm de tensioactif fluoré sur la base du poids de la dispersion et un tensioactif cationique. Le tensioactif cationique contribue à réduire la viscosité de la dispersion et des tensioactifs cationiques préférés sont volatils au cours des opérations de revêtement ou de coulage de film impliquant le séchage et le frittage de la dispersion.