New catalysts useful in the curing of a water-curable isocyanate-functional prepolymer are provided. The new catalyst is a new 2,2'-dimorpholinyldialkyl ether. The use of the improved catalyst provides prepolymer/catalyst premix compositions having equivalent or increased shelf stability and which, when water-cured, yield resins having superior early strengths. A method of curing an isocyanate-functional prepolymer and articles useful as orthopedic bandages are also provided.
提供了在固化
水可固化
异氰酸酯官能团预聚物中有用的新催化剂。新催化剂是新的2,2'-二吗啉基二烷基醚。使用改进的催化剂提供了预聚物/催化剂预混合物组合具有等效或增加的货架稳定性,并且在
水固化时,产生具有优异早期强度的
树脂。还提供了固化
异氰酸酯官能团预聚物的方法和用作矫形绷带的物品。