发明名称 |
High equivalent weight, polyester polyols for closed cell, rigid foams |
摘要 |
<p>A closed cell, rigid polymer foam which comprises the reaction product of a polyisocyanate and an isocyanate-reactive component in the presence of a catalyst and a hydrogen-containing blowing agent or a mixture of a hydrogen-containing blowing agent and at least one co-blowing agent wherein the isocyanate-reactive component comprises (a) a hydroxy terminated polyester having an equivalent weight greater than about 350, or (b) a mixture of the hydroxy terminated polyester with at least one other isocyanate-reactive compound. Foams prepared with the hydroxy terminated polyester have superior shrinkage resistance, strength and long-term insulating efficiency.</p> |
申请公布号 |
EP0726281(A3) |
申请公布日期 |
1996.10.09 |
申请号 |
EP19960101864 |
申请日期 |
1996.02.09 |
申请人 |
THE CELOTEX CORPORATION;APACHE PRODUCTS COMPANY |
发明人 |
SKOWRONSKI, MICHAEL J.;TROUT, KENNETH G. |
分类号 |
B32B5/18;C08G18/42;C08J9/14;(IPC1-7):C08G18/42;C08G18/66 |
主分类号 |
B32B5/18 |
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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