Main > TEXTILES > Fibers > Elastomer Fiber. > Spandex/Elastane PolyUrethane Fiber > Co.: USA. I (Producer/Patents) > Patent > Claims Etc > Claim 1 PolyUrethaneUrea Polymer: > Prodt. of PolyEther Glycol Selected > HomoPolymer of THF & CoPolymer > of THF & 3-Me-THF Monomers; > 1,1-MethyleneBis(4-IsocyanatoBenzen

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1,1-MethyleneBis(4-IsocyanatoBenzen's subsections
e) & Diamine Chain Extender,

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