Coating compositions

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

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: COOGAN, RICHARD G
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Aqueous polyurethane dispersions useful as coating compositions wherein the polyurethane comprises the reaction product of (a) an isocyanate-terminated polyurethane prepolymer containing carboxylic acid salt groups formed by reacting: (i) a polyisocyanate component containing at least 1% by weight of diphenylmethane-2,4'-diisocyanate, and (ii) an active hydrogen containing component containing a polyol and a carboxy group containing diol or triol, and (b) an active hydrogen containing chain extender.