发明授权
US5407968A Polyether polyols, water-curable polyurethane prepolymers based thereon,
and compositions containing the prepolymers
失效
基于其的聚醚多元醇，水可固化聚氨酯预聚物和含预聚物的组合物
- 专利标题： Polyether polyols, water-curable polyurethane prepolymers based thereon, and compositions containing the prepolymers
- 专利标题（中）： 基于其的聚醚多元醇，水可固化聚氨酯预聚物和含预聚物的组合物
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申请号： US532申请日： 1993-01-04
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公开(公告)号： US5407968A公开(公告)日： 1995-04-18
- 发明人: Takashi Sano
- 申请人： Takashi Sano
- 申请人地址： JPX Kyoto
- 专利权人： Dai-Ichi Kogyo Seiyaku Co., Ltd.
- 当前专利权人： Dai-Ichi Kogyo Seiyaku Co., Ltd.
- 当前专利权人地址： JPX Kyoto
- 优先权： JPX1-10793 19890119
- 主分类号： C08G18/10
- IPC分类号： C08G18/10 ; C08G18/48 ; C08G65/26
摘要：
The invention relates to a polyether polyol, a water-curable polyurethane prepolymer prepared by using the polyether polyol, and a composition containing the prepolymer. The above polyether polyol is obtainable by subjecting an active hydrogen compound to addition polymerization reaction with ethylene oxide and an alkylene oxide of 3 to 4 carbon atoms in a specified ratio. The above water-curable polyurethane prepolymer is obtainable by reacting the polyether polyol with a polyisocyanate compound. The above composition comprises a mixture of the water-curable polyurethane prepolymer and the polyisocyanate. The above water-curable polyurethane prepolymer and composition provide a foam of fine and uniform cell structure with improved strength on curing with water.
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