PROCESS FOR REACTING THERMOPLASTIC POLYURETHANES WITH COMPOUNDS HAVING ISOCYANATE GROUPS

Process for reacting thermoplastic polyurethanes with compounds having isocyanate groups, wherein the reaction is carried out in the presence of a prepolymer which is the reaction product of (a) isocyanates with (b) compounds which are reactive toward isocyanates and have a molecular weight in the r...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	HILMER KLAUS
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Process for reacting thermoplastic polyurethanes with compounds having isocyanate groups, wherein the reaction is carried out in the presence of a prepolymer which is the reaction product of (a) isocyanates with (b) compounds which are reactive toward isocyanates and have a molecular weight in the range from 500 g/mol to 10 000 g/mol, preferably from 2000 g/mol to 8000 g/mol, and the prepolymer has a glass transition temperature Tg measured by means of DSC in accordance with DIN EN ISO 11357-1 below −35° C.