Spandex fiber with copolymer soft segment

Details Spandex fiber with copolymer soft segment Spandex fiber with copolymer soft segment

D - Textiles, Paper

01

F

400/2012, 18/612

D01F 6/78 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08L 75/08 (2006.01) D01F 6/70 (2006.01)

Patent

CA 1318048

ABSTRACT OF THE DISCLOSURE A elastic fibers are formed from spandex polymer that is prepared by reacting a glycol prepared from a tetrahydrofuran/3-methyltetrahydrofuran copolymer with a diisocyanate and then chain extending the thusly capped glycol with a particular mixture of diamines. The fibers have a highly desirable combination of power, hot-wet creep and heat-set efficiency and can be prepared at high spinning and windup speeds.

600580

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