| 发明名称 |
PROCESSO PARA OBTENCAO DE DI- E POLIURETANAS AROMATICAS |
| 摘要 |
<p>A method for the production of N-aryl substituted di- and polyurethanes in high yield, by the reaction of an aromatic di- or polyamine with urea and alcohol at high temperatures. The di- and polyurethanes thus produced have utility as isocyanate precursors.</p> |
| 申请公布号 |
BR8002554(A) |
申请公布日期 |
1980.12.09 |
| 申请号 |
BR19808002554 |
申请日期 |
1980.04.25 |
| 申请人 |
BASF AG |
发明人 |
TOWAE F;MERGER F |
| 分类号 |
B01J27/10;B01J31/04;C07B61/00;C07C67/00;C07C239/00;C07C269/00;C07C269/04;C07C271/06;C07C271/28;C07C271/30;(IPC1-7):C07C125/04 |
主分类号 |
B01J27/10 |
| 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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