Polyester antifume additive for spandex fiber

Details Polyester antifume additive for spandex fiber Polyester antifume additive for spandex fiber

D - Textiles, Paper

01

F

400/5501

D01F 6/70 (2006.01) C08L 75/08 (2006.01)

Patent

CA 1261514

TITLE POLYESTER ANTIFUME ADDITIVE FOR SPANDEX FIBER ABSTRACT Saturated aliphatic polyesters having a repeating unit which has the structural form of a residue of a glycol combined with a residue of a diacid or the form of a residue of a hydroxy acid, the number of carbon atoms in the shortest chain between ends of the residues being in the range of 3 to 10 for the glycol residue and no more than 12 for the diacid residue or for the hydroxy acid residue, provide polyether-based spandex fibers with improved resistance to discoloration induced by exposure to nitrogen dioxide fumes.

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