发明名称 |
PROCESS FOR THE PREPARATION OF DI- AND POLYAMINES OF THE DIPHENYLMETHANE SERIES |
摘要 |
Preparation of di- and polyamine of diphenylmethane group (I) comprises reacting aniline and formaldehyde in the presence of hydrochloric acid (less than 0.001 wt.%) (containing bivalent and/or higher valency metal ions). An independent claim is also included for the preparation of di- and polyisocyanate of diphenylmethane group comprising preparing (I) and reacting (I) with phosgene. |
申请公布号 |
PT1652835(E) |
申请公布日期 |
2010.05.04 |
申请号 |
PT20050022494T |
申请日期 |
2005.10.14 |
申请人 |
BAYER MATERIALSCIENCE AG |
发明人 |
HEINZ-HERBERT MUELLER;STEFAN WERSHOFEN, DR.;STEFAN GRABOWSKI DR. |
分类号 |
C07C209/60;C07C209/78;C07C263/10;C08G18/76 |
主分类号 |
C07C209/60 |
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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