A PROCESS FOR THE PREPARATION OF THERMOPLASTIC POLYURETHANE ELASTOMERS

This invention relates to a process for standardized preparation of thermoplastic polyurethane elastomers by deactivating metal traces during the reaction, at an NCO: OH ratio of between about 0.85 and about 1.2:1, of (a) substantially linear hydroxyl-terminated polyols; (b) organic diisocyanates; (...

Full description

Saved in:
Bibliographic Details
Main Authors OTT, KARL-HEINZ, BRAUER, WOLFGANG, MULLER, FRIEDEMANN
Format Patent
LanguageEnglish
French
Published 16.12.2003
Edition5
Subjects
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
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
Online AccessGet full text

Cover

More Information
Summary:This invention relates to a process for standardized preparation of thermoplastic polyurethane elastomers by deactivating metal traces during the reaction, at an NCO: OH ratio of between about 0.85 and about 1.2:1, of (a) substantially linear hydroxyl-terminated polyols; (b) organic diisocyanates; (c) optional diol chain extenders; and (d) optional catalysts or other auxiliaries and/or additives, in the presence of (e) 0.000001 to 0.3% by weight, based on the total weight of the other components, of certain phosphorus compounds, wherein the phosphorus compounds are added to one or more of the other components before or during preparation of the thermoplastic polyurethane elastomers.
Bibliography:Application Number: CA19922072788