公开(公告)号：US5416263A

公开(公告)日：1995-05-16

申请号：US58711

申请日：1993-05-10

申请人： Iwao Sakaguchi ,  Katsutoshi Numano ,  Toshiaki Kishimoto ,  Hiroki Inoue ,  Yoshiaki Hayashi ,  Keisuke Ito

发明人： Iwao Sakaguchi ,  Katsutoshi Numano ,  Toshiaki Kishimoto ,  Hiroki Inoue ,  Yoshiaki Hayashi ,  Keisuke Ito

IPC分类号： C09B1/00 ,  C09B67/10 ,  C08K5/17

CPC分类号： C09B67/0014 ,  C09B1/005

摘要： 4,4'-Diamino-1,1'-dianthraquinonyl compounds which are obtained in a known manner and which are easy to agglomerate or aggregate owing mainly to their too fine particle size are conditioned by heating an aqueous suspension consisting essentially of the 4,4'-diamino-1,1'-dianthraquinonyl compound and water in the presence or absence of a mineral acid or an alkali. The thus obtained 4,4'-diamino-1,1'-dianthraquinonyl pigments are used in paints, printing inks, coloring of plastics and the like. The aqueous suspension is preferably prepared by desulfonating a 4,4'-diamino-1,1'-dianthraquinonyl-3,3'-disulfonic acid compound in a mineral acid such as sulfuric acid and then mixing the desulfonation reaction mixture with water or by once isolating the resulting 4,4'-diamino-1,1'-dianthraquinonyl compound and mixing the isolated compound with water.

摘要翻译： 以已知方式获得并且由于主要由于它们太细的粒径而容易聚集或聚集的4,4'-二氨基-1,1'-二蒽醌化合物通过加热基本上由4， 4'-二氨基-1,1'-二蒽醌化合物和水在无机酸或碱存在或不存在下进行。 由此获得的4,4'-二氨基-1,1'-二蒽醌颜料用于油漆，印刷油墨，塑料着色等中。 水性悬浮液优选通过在无机酸如硫酸中脱磺酸4,4'-二氨基-1,1'-二蒽醌-3,3'-二磺酸化合物制备，然后将脱磺基反应混合物与水或通过 一旦分离所得的4,4'-二氨基-1,1'-二蒽醌化合物并将分离的化合物与水混合。

公开(公告)号：US5393899A

公开(公告)日：1995-02-28

申请号：US108850

申请日：1993-08-19

申请人： Hiroki Inoue ,  Iwao Sakaguchi ,  Katsutoshi Numano ,  Toshiaki Kishimoto ,  Yoshiaki Hayashi ,  Keisuke Ito

发明人： Hiroki Inoue ,  Iwao Sakaguchi ,  Katsutoshi Numano ,  Toshiaki Kishimoto ,  Yoshiaki Hayashi ,  Keisuke Ito

IPC分类号： C07C303/44 ,  C07C309/53 ,  C09B1/00 ,  C07D87/46

CPC分类号： C09B1/005 ,  C07C303/44 ,  C07C2103/24

摘要： Crude 4,4'-diamino-l,l'-dianthraquinonyl-3,3'-disulfonic acids or salts thereof are purified by subjecting an aqueous solution containing the crude products to salting-out using inorganic salts, the aqueous solution being adjusted within a range of from acid to neutral region, whereby a product usable as such for the production of 4,4'-diamino-1,1'-dianthraquinonyl red pigments having excellent pigmentary properties is obtained in high yields with industrial advantages.

摘要翻译： 粗制的4,4'-二氨基-1,1'-二蒽醌基-3,3'-二磺酸或其盐通过使含有粗产物的水溶液经无机盐进行盐析纯化，将水溶液调节至 从酸到中性区域的范围，由此得到具有优异的颜料性能的4,4'-二氨基-1,1'-二蒽醌红色颜料的制造用产品，具有工业上的优点。