| 发明名称 |
Method for production of diaminodiphenylmethanes |
| 摘要 |
diaminophenyl methanes (I) are produced by rearrangement of a dried condensate of aniline (A) and a methylene group containing agent (B) in a molar ratio of (A):(B) of 1.7-100 in the presence of acid catalysts under conditions to form (I) having a low polymer content with a significant 4,4'-isomer content, whereby the aniline (A) is essentially free of aliphatic amines. |
| 申请公布号 |
AU4236201(A) |
申请公布日期 |
2001.08.20 |
| 申请号 |
AU20010042362 |
申请日期 |
2001.02.01 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
STEPHAN KLEIN;DIRK GROTJOHANN;CHRISTINE MENDOZA-FROHN;DANIEL KOCH;HEINZ-HERBERT MULLER;HANS-GEORG PIRKL;RUDOLF UCHDORF;GERHARD WEGENER |
| 分类号 |
C07B61/00;C07C209/78;C07C211/50;C07C211/54 |
主分类号 |
C07B61/00 |
| 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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