Main > TEXTILES > Fibers > Elastomer Fiber. > Spandex/Elastane PolyUrethane Fiber > Co.: Japan. A (Producer/Patents) > Patent > Claims Etc > Claim 1 PolyUrethane Elastic Fiber > , PolyUrethane Obtained from > CoPolymerized PolyAlkyleneEther > DiOl: Different AlkyleneEthers 2-10 > C, 4,4-DiPh-Methane DiIsocyanate & > BiFunctional DiAmine, Urethane MW= > 6000-9500. Urea MW=650-950. > Claim 2 Elongation at Break>500% & > Modulus at 300% Elongation< 0.2 g/d

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