AQUEOUS POLYESTER-POLYURETHANE DISPERSION NOT REQUIRING ORGANIC CO-SOLVENTS

The present invention relates to an aqueous polyester-polyurethane dispersion comprising a polyester resin, a basic neutralizing agent and water. The invention further relates to a process for the production of these dispersions and to their use. It has been found that by using succinic acid in the...

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Bibliographische Detailangaben
Hauptverfasser:	GEWIS, HEINZ-DIETMAR, MELCHIORS, MARTIN, HEBESTREIT, TANJA, KLIPPERT, UWE, SCHRINNER, MARC, CLAUDIUS
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention relates to an aqueous polyester-polyurethane dispersion comprising a polyester resin, a basic neutralizing agent and water. The invention further relates to a process for the production of these dispersions and to their use. It has been found that by using succinic acid in the formation of the polyester polyol and dimethylol butyric acid in the formation of the polyester-polyurethane no further organic co-solvents such as NMP are necessary to form stable and useful aqueous polymer dispersions. La présente invention concerne une dispersion aqueuse de polyester-polyuréthane comprenant une résine de polyester, un agent neutralisant basique et de l'eau. L'invention concerne en outre un procédé pour la fabrication de ces dispersions et leur utilisation. Il a été découvert que, par utilisation d'acide succinique dans la formation du polyester polyol et d'acide diméthylol butyrique dans la formation du polyester-polyuréthane, aucun co-solvant organique supplémentaire tel que la NMP n'est nécessaire pour former des dispersions aqueuses de polymères stables et utiles.