| 发明名称 |
Process for preparing rigid polyurethane foams |
| 摘要 |
This invention is directed to a process by preparing a rigid polyurethane foam which comprise reacting a polyisocyanate with a polyol in the presence of a blowing agent, a polymerization catalyst and a surfactant. The polyol has the formula <IMAGE> (I)
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| 申请公布号 |
US4704411(A) |
申请公布日期 |
1987.11.03 |
| 申请号 |
US19860880382 |
申请日期 |
1986.06.30 |
| 申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
GANSOW, MICHAEL A. P.;SHADID, OMAR B.;SPORK, JOHANNES E. G. |
| 分类号 |
C08G18/30;C08G18/32;C08G18/50;C08G101/00;C08J9/04;(IPC1-7):C08G18/14 |
主分类号 |
C08G18/30 |
| 代理机构 |
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