This invention relates to colorants comprising a chromophore having a single azo acetoacetanilide moiety, wherein said moiety each have at least one poly(oxyalkylene) chain. Such colorants exhibit extremely good base stability and lightfastness, particularly when incoporated within certain media and/or on the surface of certain substrates. These poly(oxyalkylene) chains provide solubility in different solvents or resins thereby permitting the introduction of such excellent coloring chromophores within diverse media and/or or diverse substrates. Compositions and articles comprising such colorants are provided as are methods for producing such inventive colorants.
                            本发明涉及由具有单一偶氮乙酰
乙酰苯胺分子的发色团组成的
着色剂,其中所述分子各自具有至少一条聚(氧烷基)链。这种
着色剂具有极好的基体稳定性和耐光性,尤其是在某些介质中和/或某些基材表面上使用时。这些聚(氧烷基)链可溶于不同的溶剂或
树脂,从而允许在不同的介质和/或不同的基材中引入这种优良的着色发色团。本文提供了包含此类
着色剂的组合物和物品,以及生产此类发明
着色剂的方法。