An inventive blue colorant comprising a chromophore having at least one hydroxy group-terminated polyester chain attached, through a suitable alkylamino linking group (or groups), to the 1-position, the 4-position, or both, of an anthraquinone backbone is provided. Such colorants exhibit excellent amine/base stability and thermal stability, effective colorations, excellent low extraction rates, and high lightfastness levels, particularly when incorporated within certain media and/or on the surface of certain polyurethane substrates. The polyester chain or chains can be conveniently tailored to increase the solubility or compatibility in different types of polyurethane resin precursors thereby permitting the introduction of such excellent coloring chromophores within diverse polyurethane media and/or or diverse polyurethane substrates as well as provides a liquid colorant which facilitates handling. Compositions and articles comprising such inventive colorants are provided as well as methods for producing such inventive colorants.
提供一种创新的蓝色
染料,包括至少一个具有羟基末端的聚酯链的色团,通过适当的烷基
氨基连接基(或基团)连接到
蒽醌骨架的1位、4位或两者。这种
染料表现出优异的胺/碱稳定性和热稳定性,有效的着色效果,出色的低萃取率和高耐光性
水平,特别是当它们被包含在某些介质内和/或涂在某些聚
氨酯基材表面时。聚酯链可以方便地定制,以增加在不同类型的聚
氨酯
树脂前体中的溶解性或兼容性,从而允许将这些优秀的着色色团引入各种聚
氨酯介质和/或不同聚
氨酯基材中,并提供一种便于处理的液体
染料。还提供包含这种创新
染料的组合物和制备这种创新
染料的方法。