USE OF POLYISOCYANATES OR POLYISOCYANATE MIXTURES AS ADDITIVES FOR AQUEOUS DISPERSION PAINTS

The present invention is directed to a process for improving the coatings properties of aqueous emulsion paints having a binder based on homo or copolymers of olefinically unsaturated monomers substantially free from urethane groups by adding at least one organic polyisocyanate having a viscosity at...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MENNICKEN, GERHARD, KUBITZA, WERNER
Format:	Patent
Sprache:	eng ; ger
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention is directed to a process for improving the coatings properties of aqueous emulsion paints having a binder based on homo or copolymers of olefinically unsaturated monomers substantially free from urethane groups by adding at least one organic polyisocyanate having a viscosity at 23 DEG C. of about 50 to 4000 mPa.s, wherein the organic polyisocyanate has aliphatically and/or cycloaliphatically bound isocyanate groups and an isocyanate functionality of at least 3, optionally in combination with other organic polyisocyanates containing aliphatically and/or cycloaliphatically bound isocyanate groups and having an isocyanate functionality of 2, provided that the average functionality is at least 2.2. The present invention is also directed to the ready for use aqueous emulsion paints prepared by the above process.