Main > TEXTILES > Fibers > Elastomer Fiber. > Spandex/Elastane PolyUrethane Fiber > Co.: USA. I (Producer/Patents) > Patent > Claims Etc > Claim 1 PolyUrethaneUrea Polymer: > Prodt. of a) PolyEther Glycol Selec > t: HomoPolymer of THF & CoPolymer > of THF & 3-Me-THF, (b) 1,1-Methylen > eBis(4-IsocyanatoBenzene) & (c) > DiAmine Chain Extenders, WHEREIN > One DiAmine is 1,3-DiAminoPentane

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One DiAmine is 1,3-DiAminoPentane's subsections
(35-90%) & Bal.: EthyleneDiAmine.

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