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
- 专利标题: Polyurethane hydrogel fibers and tapes and composites with natural and other synthetic fibers or films
- 专利标题(中): 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
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申请号: US480566申请日: 1974-06-18
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公开(公告)号: US3940542A公开(公告)日: 1976-02-24
- 发明人: Robert John Knopf , Virgil Edison Matthews , Allen Paul Jones, Jr.
- 申请人: Robert John Knopf , Virgil Edison Matthews , Allen Paul Jones, Jr.
- 申请人地址: NY New York
- 专利权人: Union Carbide Corporation
- 当前专利权人: Union Carbide Corporation
- 当前专利权人地址: NY New York
- 主分类号: A61L15/60
- IPC分类号: A61L15/60 ; C08G18/00 ; C08G18/08 ; C08G18/48 ; C08G18/65 ; D01F6/70 ; D01F6/72 ; B32B27/08 ; B32B27/40 ; C08G18/14
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.
公开/授权文献
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