申请人:——
公开号:US20020177640A1
公开(公告)日:2002-11-28
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。