发明申请
US20090186200A1 2,5-DI(METHOXYANILINO) TEREPHTHALIC ACID POLYMORPHS AND QUINACRIDONES REALIZED THEREFROM
审中-公开
2,5-DI（甲氧基亚氨基）十二烷酸多元醇和喹唑酮
- 专利标题： 2,5-DI(METHOXYANILINO) TEREPHTHALIC ACID POLYMORPHS AND QUINACRIDONES REALIZED THEREFROM
- 专利标题（中）： 2,5-DI（甲氧基亚氨基）十二烷酸多元醇和喹唑酮
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申请号： US12301074申请日： 2007-05-21
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公开(公告)号： US20090186200A1公开(公告)日： 2009-07-23
- 发明人: Brian Thompson , Daphne Rice , Tracie Tibbs , Wengan Wu , John Britanak , Edward H. Sung
- 申请人： Brian Thompson , Daphne Rice , Tracie Tibbs , Wengan Wu , John Britanak , Edward H. Sung
- 国际申请： PCT/US07/11958 WO 20070521
- 主分类号： C09D11/02
- IPC分类号： C09D11/02 ; C07C229/52 ; C07D471/04 ; C09D9/00 ; B32B3/00
摘要：
2,5-di(p-methoxyanilino)terephthalic acid crystal types I and II are made by controlling the pH during the recovery of the oxidized product of the condensation of dimethylsuccinyl succinate with p-methoxyaniline. The resulting 2,5-di(p-methoxyanilino)-terephthalic acid can be converted into 2,9-dimethoxyquinacridone or a solid solution thereof having controlled characteristics.