发明名称 |
PROCESS FOR PREPARING A DIAMINE/DICARBOXYLIC ACID SALT |
摘要 |
The present invention also relates to a process for preparing a diamine/dicarboxylic acid salt wherein the dicarboxylic acid comprises an aromatic dicarboxylic acid and is provided in a powder form; the diamine is provided in a liquid form gradually dosed to the dicarboxylic acid powder, while keeping the dicarboxylic acid powder in constant movement; the processing temperature is above 0° C. and below the boiling temperature of the diamine and the melting temperature of the acid and the salt, and the reaction mixture comprises at most 5 wt. % of water. The present invention also relates to an anhydrous diamine/dicarboxylic acid salt obtainable by the process according to invention, or any embodiment thereof as described above. |
申请公布号 |
EP2736873(A1) |
申请公布日期 |
2014.06.04 |
申请号 |
EP20120740151 |
申请日期 |
2012.07.26 |
申请人 |
DSM IP ASSETS B.V. |
发明人 |
GROLMAN, ERIC;RULKENS, RUDY |
分类号 |
C07C209/68;C07C51/41;C07C63/331;C07C211/09;C07C211/12 |
主分类号 |
C07C209/68 |
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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