发明授权
US3940542A Polyurethane hydrogel fibers and tapes and composites with natural and other synthetic fibers or films 失效
聚氨酯水凝胶纤维和胶带以及天然和其他合成纤维或薄膜的复合材料

Polyurethane hydrogel fibers and tapes and composites with natural and
other synthetic fibers or films
摘要:
Method for the production of water swellable, lightly crosslinked, hydrogel polymer tapes or fibers comprises extruding an isocyanato terminated prepolymer of a poly(alkyleneoxy) polyol and an organic diisocyanate into a coagulant or crosslinking bath containing water or organic polyamine as the crosslinker.
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