Oligomeric semicarbazide additives for spandex

Details Oligomeric semicarbazide additives for spandex Oligomeric semicarbazide additives for spandex

C - Chemistry, Metallurgy

08

G

402/141

C08G 18/83 (2006.01) C08G 18/10 (2006.01) C08L 75/08 (2006.01) D01F 6/70 (2006.01)

Patent

CA 2026490

TITLE Oligomeric Semicarbazide Additive for Spandex ABSTRACT OF THE DISCLOSURE Oligomeric polyether/urethanes with semicarbazide end-groups protect spandex fibers from discoloration in atmospheric fumes and/or light. The oligomers are prepared from polyether glycols, diisocyanates and N,N-dialkylhydrazine. ( L I - 9 0 0 . 1 0 L I - 0 0 4 4 6 7 )

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