Spandex fibers made using low unsaturation polyols

Details Spandex fibers made using low unsaturation polyols Spandex fibers made using low unsaturation polyols

1993-06-04

1994-08-23

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 62, 528 63, 528 64, 528 76, 2641761, 264178R, 26421124, C08G 1832

Patent

active

053409027

ABSTRACT:
This invention relates to the production of spandex fibers made from segmented polyurethane(urea)s which are prepared from low unsaturation-containing polyols made by polymerizing alkylene oxides in the presence of a double metal cyanide complex catalyst. With the low unsaturation-containing polyols, spandex fibers can be prepared that have better physical properties than fibers prepared with PTMEG polyols.

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