Spandex formed with a mixture of diamines

Details Spandex formed with a mixture of diamines Spandex formed with a mixture of diamines

C - Chemistry, Metallurgy

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C08G 18/10 (2006.01) C08G 18/32 (2006.01) C08G 18/38 (2006.01) C08G 18/48 (2006.01) C08G 18/76 (2006.01) D01F 6/70 (2006.01) D02G 3/00 (2006.01)

Patent

CA 1298024

TITLE Article of Spandex Polymer ABSTRACT A shaped article of a polyurethane-urea spandex formed from polyalkaneether glycol that was capped with tertiary aralkyl diisocyanate and then chain extended with a specific tricomponent diamine mixture has unexpectedly good heat settability. The diamine mixture comprises 25 to 80% of hydrogenated m-phenylenediamine, 10 to 50% of hydrogenated p-phenylenediamine and 10 to 30% of tetrachloro-p-xylylenediamine.

586050

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