AN IMPROVED PROCESS FOR PREPARING POLYURETHANE FIBER

The invention relates to the process of manufacturing of polymer of flexible fiber with obvious elasticity recovering rate and thermosetting efficiency which includes diisocyanester and diol with the mixture of mole ratio 1.5~1.64 for agitation reaction in stirring homogenizer at 40~50 degree C and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SEO, SEUNG-WON, KIM, MUN-SEON
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to the process of manufacturing of polymer of flexible fiber with obvious elasticity recovering rate and thermosetting efficiency which includes diisocyanester and diol with the mixture of mole ratio 1.5~1.64 for agitation reaction in stirring homogenizer at 40~50 degree C and obtaining the first polymer with unreacted diisocyanester less than 4 mole%; then employing the polymer reacted with extender mixture containing diammonia, 1,2-diamino-propane and 2-ethylenetriamine with mole% as 74~80%, 19~25% and 0.2~0.8 respectively; dry-spinning the polymer to get the flexible filament with the polylurethane urea as the base.