Fiber from polyether-based spandex

Details Fiber from polyether-based spandex Fiber from polyether-based spandex

C - Chemistry, Metallurgy

08

F

400/2012, 66/92

C08F 293/00 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01) D01F 6/70 (2006.01)

Patent

CA 2017203

TITLE Improved Fiber from Polyether-based Spandex ABSTRACT OF THE DISCLOSURE An improved spandex fiber is provided that is particularly useful for use in tricot-knit fabrics with nylon yarns. The fiber is formed from a polyether-based spandex polymer made from a poly(tetramethylene ether) glycol of about 2,200 molecular weight which was capped with methylene-bis(4-phenylisocyanate) and the resultant product then chain extended with a diamine mixture of ethylene diamine snd 2-methyl-1,5-pentanediamine in a molar ratio of about 70/30. LP-2755 LI-13.26

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