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 > Prodt.: (A) THF-3-Me-THF CoPol. > Glycol, (B) Mixt. of > 1-Isocyanato-4-[(4-IsocyanatoPh)Me] > Benzene & 23-55% of 1-Isocyanato-2-

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Benzene & 23-55% of 1-Isocyanato-2-'s subsections
[(4-IsocyanatoPh)Me]Benzene. (C)

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