Main > TEXTILES > Fibers > Elastomer Fiber. > Spandex/Elastane PolyUrethane Fiber > Co.: Japan. A (Producer/Patents) > Patent > Claims Etc > Claim 1 PolyUrethaneUrea E. Fiber > Obtained: Incorporating Urea Compd. > (1-15%) in PolyUrethaneUrea Polymer > , Urea Compd Prepn. by Reacting: > a) N-Contg Compd Contg > One > BiFunctional Amine Group Selected: > Primary Amine & > One N-Contg Group > Select: Tertiary N (b) DiIsocyanate > & (c) > One Compd Select: > MonoAlkylMonoAmine Etc. Claim 3:

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MonoAlkylMonoAmine Etc. Claim 3:'s subsections
(a): Piperazine. Claim 4: (c):

MonoAlkylMonoAmine Etc. Claim 3:'s products
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