| 发明名称 |
METHOD FOR MAKING ORGANIC POLYCARBOXYLIC ACIDS |
| 摘要 |
<p>A method is described for making organic polycarboxylic acids or anhydrides, such as aromatic ether bis(phtalic acid)s, based on a cyclic imide-cyclic anyhdride exchange reaction at elevated temperatures in the presence of water. In addition to making organic polycarboxylic acid and organic imides there are also generated certain imide carbonyl compounds such as</p> |
| 申请公布号 |
CA1095917(A) |
申请公布日期 |
1981.02.17 |
| 申请号 |
CA19770287909 |
申请日期 |
1977.09.29 |
| 申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
MARKEZICH, RONALD L.;TAKEKOSHI, TOHRU |
| 分类号 |
C07C69/80;C07C51/00;C07C51/567;C07C55/02;C07C63/15;C07C65/21;C07C67/00;C07C313/00;C07C317/18;C07C317/22;C07D207/44;C07D207/448;C07D209/48;C07D307/89;(IPC1-7):07C65/14;07D307/89;07D209/48 |
主分类号 |
C07C69/80 |
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