发明名称 |
PROCESS FOR PRODUCING POLYURETHANE FOAM MATERIALS |
摘要 |
To prepare foam plastics, in particular polyurethane foam plastics, which are free from chlorofluorocarbons (CFCs), the blowing agent used is pure nitrogen obtained by simultaneous, binary reaction of the ions NH4<+> and NO2<-> of two NH4<+> and NO2<H N=0><-> ion-forming solutions of ammonium salts and alkali metal nitrites, such as ammonium chloride or ammonium sulphate solution and sodium nitrite or potassium nitrite solution. |
申请公布号 |
HUT63446(A) |
申请公布日期 |
1993.08.30 |
申请号 |
HU19920004004 |
申请日期 |
1991.07.10 |
申请人 |
PRIGNITZ,HERBERT,DE |
发明人 |
PRIGNITZ,HERBERT,DE;REDHAT,NAJDA,DE |
分类号 |
C08G18/08;C08G18/00;C08G101/00;C08J;C08J9/10 |
主分类号 |
C08G18/08 |
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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