[EN] HEAT-STABLE DIKETOPYRROLOPYRROLE PIGMENT MIXTURES<br/>[FR] MELANGES DE PIGMENTS DE DIKETOPYRROLOPYRROLE THERMOSTABLES
申请人:CIBA SC HOLDING AG
公开号:WO2005040284A1
公开(公告)日:2005-05-06
The present invention relates to a process for the preparation of a mixture comprising at least two structurally different diketopyrrolopyrrole pigments of formula (1) wherein A1 and A2 are each independently of the other an aromatic or heteroaromatic radical, by reacting a succinic acid ester with at least one unsubstituted or substituted aromatic or heteroaromatic nitrile, which process comprises carrying out the reaction in the presence of at least one compound of formula (2) wherein A is an aromatic or heteroaromatic radical, R3 is hydrogen, halogen, methyl, methoxy, -CF3 or -CN, R4 is a linear or, from C3 upwards, optionally branched C1-C30alkyl, C6-C10aryl or C6-C24aralkyl radical, X is -S-, -0-, -CR5R5'-, -COO-, -CONR5-, -SO-, SO2-, -SO2NR5- or -NR5 -and R5 and R5'are each independently of the other hydrogen or a linear or, from C3 upwards, optionally branched C1-C30alkyl, C6-C10aryl or C6-C24aralkyl radical, to the use of such a mixture in the colouring of organic material and in cosmetics, and also to novel diketopyrrolopyrrole pigment mixtures.
本发明涉及一种制备包含至少两种结构不同的二酮吡咯吡咯色素的混合物的过程,其中式(1)中的A1和A2各自独立地是芳香或杂芳基团,通过将琥珀酸酯与至少一种未取代或取代的芳香或杂芳腈反应来实现,所述过程包括在式(2)中至少一化合物的存在下进行反应,其中A为芳香或杂芳基团,R3为氢、卤素、甲基、甲氧基、-CF3或-CN,R4为线性的或者从C3开始,可选地支链的C1-C30烷基、C6-C10芳基或C6-C24芳基烷基基团,X为-S-、-O-、-CR5R5'-、-COO-、-CONR5-、-SO-、SO2-、-SO2NR5-或-NR5,R5和R5'各自独立地是氢或线性的或者从C3开始,可选地支链的C1-C30烷基、C6-C10芳基或C6-C24芳基烷基基团,以及将这种混合物用于有机材料的着色和化妆品中,以及新型二酮吡咯吡咯色素混合物。