Main > TEXTILES > Fibers > Elastomer Fiber. > Spandex/Elastane PolyUrethane Fiber > Co.: USA. I (Producer/Patents) > Patent > Claims Etc > Claim 1 Quaternary Amine Additive > Select: (a) Oligomers Reaction Pro > dt. of DiIsocyanate Selected: > 1-Isocyanato-4-[(4-IsocyanatoPh]Ben > zene Etc. & Quaternary Amine Select > N,N-DiAlkyl-N,N-DiAlkanolAmmonium > Chlorides, 2-4C Alkanol Group. > Claim 2 Spandex PolyUrethaneUrea > , Cl.1 Quat. Amine (5-35 meq/kg of > Spandex) & "Y" is AlkylSulfate.

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