申请人:Clariant GmbH
公开号:US05910577A1
公开(公告)日:1999-06-08
Compounds of the formula (I) ##STR1## in which R.sup.1 and R.sup.2 are identical or different and are Cl, COO(C.sub.1 -C.sub.4)-alkyl, CONH.sub.2, CONCH.sub.3, CON(CH.sub.3).sub.2 or SO.sub.2 NRR', where R and R' are identical or different and are hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl, it being possible for phenyl to be substituted by methyl, ethyl, methoxy, ethoxy or halogen, R.sup.3 is hydrogen, methyl, methoxy, ethoxy, chloro or bromo, and R.sup.4 is hydrogen, C.sub.1 -C.sub.3 -alkyl, chloro or bromo, are useful yellow pigments with high light fastness and weather fastness properties.
化合物的公式(I) ##STR1## 其中R.sup.1和R.sup.2相同或不同,可以是Cl、COO(C.sub.1 -C.sub.4)-烷基、CONH.sub.2、CONCH.sub.3、CON(CH.sub.3).sub.2或SO.sub.2 NRR',其中R和R'相同或不同,可以是氢、C.sub.1 -C.sub.4-烷基或苯基,苯基可以被甲基、乙基、甲氧基、乙氧基或卤素取代,R.sup.3是氢、甲基、甲氧基、乙氧基、氯或溴,而R.sup.4是氢、C.sub.1 -C.sub.3-烷基、氯或溴。这些化合物是具有高光牢度和耐候性能的有用的黄色颜料。