| 发明名称 |
PROCESS FOR PREPARATION OF DI- AND POLYAMINES OF THE DIPHENYLMETHANE SERIES |
| 摘要 |
The invention relates to a method for the preparation of di- and polyamines of the diphenylmethane series, care being taken during the shutdown of the production process that an excess of aniline with respect to formalin is ensured. |
| 申请公布号 |
WO2015197519(A1) |
申请公布日期 |
2015.12.30 |
| 申请号 |
WO2015EP63922 |
申请日期 |
2015.06.22 |
| 申请人 |
COVESTRO DEUTSCHLAND AG |
发明人 |
KNAUF, THOMAS;WERSHOFEN, STEFAN;GRUNER, KLAUS-GERD;HARTJES, VOLKER |
| 分类号 |
C07C209/78 |
主分类号 |
C07C209/78 |
| 代理机构 |
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