POLYURETHANE DISPERSIONS

Aqueous polyurethane dispersions useful as coating compositions wherein the polyurethane comprises the reaction product of an isocyanate-terminated polyurethane prepolymer containing carboxylic acid salt groups formed by reacting a polyisocyanate component containing at least 1% by weight of dipheny...

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Bibliographische Detailangaben
1. Verfasser:	COOGAN, RICHARD G
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:	Aqueous polyurethane dispersions useful as coating compositions wherein the polyurethane comprises the reaction product of an isocyanate-terminated polyurethane prepolymer containing carboxylic acid salt groups formed by reacting a polyisocyanate component containing at least 1% by weight of diphenylmethane-2,4'-diisocyanate, and an active hydrogen containing component containing a polyol and a carboxy group containing diol or triol, and an active hydrogen containing chain extender.