发明名称 |
PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS |
摘要 |
A rigid polyurethane foam can be obtained in one-shot method by reacting a polyol mixture comprising a tetrafunctional tolylenediamine type polyol, a difunctional propylene type polyol, an octafunctional sucrose type polyol and a trifunctional diethanolamine type polyol with an isocyanate component in the presence of a reaction catalyst, a blowing agent and a foam stabilizer. The thus obtained rigid polyurethane foams have improved fluidity, dimensional stability, friability and thermal conductivity and shortened demolding time. |
申请公布号 |
DE3369522(D1) |
申请公布日期 |
1987.03.05 |
申请号 |
DE19833369522 |
申请日期 |
1983.04.13 |
申请人 |
HITACHI, LTD. |
发明人 |
NAKA, REISHI;SHIBATA, KATSUO;KOBAYASHI, ISAO |
分类号 |
C08G18/00;C08G18/48;C08G18/50;(IPC1-7):C08G18/48;C08G18/14 |
主分类号 |
C08G18/00 |
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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