TOLUENE DIISOCYANATE/POLYESTER/POLYMETHYLENE POLY(PHENYLISOCYANATE) PREPOLYMERS WITH LOW MONOMERIC TDI CONTENT

This invention relates to novel liquid, homogeneous toluene diisocyanate/polyether/polymethylene poly(phenylisocyanate) prepolymers having an NCO content of from about 2 to 16%, a viscosity or about 10,000 mPa.s or less at room temperature, and which contains about 1.0% or less of free monomeric TDI...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MARKUSCH, PETER H, PANTONE, RICHARD S
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	This invention relates to novel liquid, homogeneous toluene diisocyanate/polyether/polymethylene poly(phenylisocyanate) prepolymers having an NCO content of from about 2 to 16%, a viscosity or about 10,000 mPa.s or less at room temperature, and which contains about 1.0% or less of free monomeric TDI. This invention also relates to a process for the preparation of these liquid, homogeneous toluene diisocyanate/polyether/-polymethylene poly(phenylisocyanate) prepolymers. These prepolymers are suitable for preparing polyurethanes, by reacting the prepolymer with an isocyanate-reactive component.