发明名称 |
METHOD OF MAKING AROMATIC DIHYDROXY DIACID DIHALIDES AND PRECIPITATES RESULTING THEREFROM |
摘要 |
A method of making an aromatic dihydroxy diacid dihalide comprises forming a solution of an aromatic dihydroxy diacid in a solvent, contacting the aromatic dihydroxy diacid solution with a halogenating agent; heating the solution under an inert atmosphere to convert from 50 and 100 percent of the aromatic dihydroxy diacid to aromatic dihydroxy diacid dihalide, wherein the time required for the conversion is less than 4 hours, and removing at least a portion of the solvent. |
申请公布号 |
WO2007008888(A3) |
申请公布日期 |
2008.04.17 |
申请号 |
WO2006US26873 |
申请日期 |
2006.07.12 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY;LEE, KIU-SEUNG |
发明人 |
LEE, KIU-SEUNG |
分类号 |
C07C51/60;C07C65/03;C07C65/11;C08G63/60 |
主分类号 |
C07C51/60 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|