| 发明名称 |
VERFAHREN ZUR UMSETZUNG VON ISOCYANATEN |
| 摘要 |
<p>The reaction of isocyanates with substances containing isocyanate groups or active hydrogen groups, such as hydroxyl groups, amino groups and the like, are initiated by sulfonium zwitterions such as the ar-cyclic sulfonium areneoxides. Accordingly, partially trimerized isocyanates, polyurethanes and other useful materials can be made.</p> |
| 申请公布号 |
DE2726779(A1) |
申请公布日期 |
1977.12.22 |
| 申请号 |
DE19772726779 |
申请日期 |
1977.06.14 |
| 申请人 |
THE DOW CHEMICAL CO. |
发明人 |
ERIK KRESTA,JIRI;SHYAN SHEN,CHEN |
| 分类号 |
C07D251/34;B01J31/00;C07B61/00;C07C67/00;C07C239/00;C07C241/00;C07C267/00;C07C269/02;C08G18/00;C08G18/02;C08G18/16;(IPC1-7):C08G18/00 |
主分类号 |
C07D251/34 |
| 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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