公开(公告)号：WO2014210378A2

公开(公告)日：2014-12-31

申请号：PCT/US2014/044436

申请日：2014-06-26

Applicant: INVISTA TECHNOLOGIES S.A.R.L.

Inventor： LIU, Hong ,  BAKKER, Willem ,  FARMER, Douglas K. ,  LEUNG, Raymond S.P. ,  LI, Jin ,  LIAO, Tianyi ,  PROFIT, Michael ,  SMITH, Steven W. ,  TEERLINK, Thomas W. ,  CELEBI, Oguzhan ,  D'ALLURA, Norman J.

CPC classification number: D01F6/70 ,  D01F6/72

Abstract: Included is a polyurethane elastic fiber that includes a blended glycol. A polyether glycol, such as PTMEG is partially replaced with PPG. The ratio of total isocyanate (NCO) end groups from the prepolymer to total primary amine (NH 2 ) end groups from the diamine chain extender is about 0.99 to about 1.01; and the combined amount of non-reactive end groups from the PPG and dialkylurea end groups in the polyurethaneurea is less than about 50 meq/kg.

Abstract translation: 包括含有混合二醇的聚氨酯弹性纤维。 聚乙二醇如PTMEG被PPG部分置换。 来自二胺扩链剂的来自预聚物的总异氰酸酯（NCO）端基与总伯胺（NH 2）端基的比例为约0.99至约1.01; 并且来自聚氨酯脲中的PPG和二烷基脲端基的非反应性端基的组合量小于约50meq / kg。