Main > TEXTILES > Fibers > Elastomer Fiber. > Spandex/Elastane PolyUrethane Fiber > Co.: USA. I (Producer/Patents) > Patent > Claims Etc > Claim 1 Spandex Heat-Set Efficiency > at 175-190C of .gtoreq.85% Reaction

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Prodt.: (A) THF-3-Me-THF CoPol.

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