2,5-DI(METHOXYANILINO)TEREPHTHALIC ACID POLYMORPHS AND QUINACRIDONES REALIZED THEREFROM
摘要
2,5-di(p-methoxyanilino)terephthalic acid crystal types I and Il 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.
申请公布号
WO2007139724(A1)
申请公布日期
2007.12.06
申请号
WO2007US11958
申请日期
2007.05.21
申请人
SUN CHEMICAL CORPORATION;THOMPSON, BRIAN;RICE, DAPHNE;TIBBS, TRACIE;WU, WENGAN;BRITANAK, JOHN;SUNG, ED
发明人
THOMPSON, BRIAN;RICE, DAPHNE;TIBBS, TRACIE;WU, WENGAN;BRITANAK, JOHN;SUNG, ED