发明名称 |
Polyether polyols, watercurable polyurethane prepolymers based thereon, and compositions containing the prepolymers. |
摘要 |
<p>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.</p> |
申请公布号 |
EP0379184(A2) |
申请公布日期 |
1990.07.25 |
申请号 |
EP19900100948 |
申请日期 |
1990.01.17 |
申请人 |
DAI-ICHI KOGYO SEIYAKU CO., LTD. |
发明人 |
SANO, TAKASHI |
分类号 |
C08G18/10;C08G18/48;C08G65/26 |
主分类号 |
C08G18/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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