ELASTIC YARN

PURPOSE:Elastic yarn having improved elasticity, chemical resistance, strength, etc., obtained by reacting a polymer diol with an organic diisocyanate to give an intermediate polymer, reacting the polymer with a specific amount of an amino compound, spinning the reaction product, winding it, heat-tr...

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Bibliographische Detailangaben
Hauptverfasser:	KATSUO KENICHI, ARIMATSU GIICHI, TAGATA HIDEAKI
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 FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS,ROPES OR THE LIKE MECHANICAL FINISHING OF YARNS OR ROPES NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES WARPING OR BEAMING YARNS
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Beschreibung
Zusammenfassung:	PURPOSE:Elastic yarn having improved elasticity, chemical resistance, strength, etc., obtained by reacting a polymer diol with an organic diisocyanate to give an intermediate polymer, reacting the polymer with a specific amount of an amino compound, spinning the reaction product, winding it, heat-treating it. CONSTITUTION:(i) A polymer such as polyoxyethylene glycol, etc. having 500- 6,000 molecular weight is reacted with (ii) excess mole of an organic diisocyanate such as p-phenylene diisocyanate, etc. to obtain a terminal isocyanate group-containing middle polymer. Then, this intermediate polymer is reacted with an amino compound in an amount to satisfy the equation (A is equivalent of isocyanate group in the middle polymer; B is equivalent of polyfunctional amino compound; C is equivalent of monofunctional amino compound), to give a polymer. Then, the polymer is spun, wound, heat-treated at 50-100 deg.C for >=2hr, to give the desired high-molecular weight elastic yarn.