Main > TEXTILES > Fibers > Elastomer Fiber. > Spandex/Elastane PolyUrethane Fiber > Co.: USA. I (Producer/Patents) > Patent > Claims Etc > Claim 1 PolyUrethaneUrea Polymer: > Prodt.: i) Polymeric Glycol; ii) > DiIsocyanate Compn Contg > One > OrthoAlkyl-MDI Select Formula I ## > STR2## (> 20%), iii) Chain Extender > Compn.: Bulky Diamine Selected: > 2,2-DiMe 1.3-PentaneDiamine Etc

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(> 80%). Polyurethaneurea is

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