Soft thermoplastic polyurethane ureas a process for their preparation and their use

Soft thermoplastic polyurethane ureas a process for their preparation and their use

A thermoplastic polyurethane urea prepared by reacting a reaction mixture of a) one or more polyisocyanates, with b) one or more compounds having on average at least 1.8 Zerewitinoff-active hydrogen atoms and a molecular weight of between 400 and 10,000, and c) water, wherein the water is introduced...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WUSSOW, HANS-GEORG, REHBOLD, BODO, MUELLER, HANNS-PETER, KIRCHMEYER, STEPHAN
Format: Patent
Sprache:eng
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
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Beschreibung
Zusammenfassung:A thermoplastic polyurethane urea prepared by reacting a reaction mixture of a) one or more polyisocyanates, with b) one or more compounds having on average at least 1.8 Zerewitinoff-active hydrogen atoms and a molecular weight of between 400 and 10,000, and c) water, wherein the water is introduced into the reaction mixture with the aid of an effective quantity of one or more emulsifiers. The reaction mixture may additionally contain d) further conventional auxiliary substances and additives.