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    Colorant compositions and their use as pH sensitive color indicators
    1.
    发明申请
    Colorant compositions and their use as pH sensitive color indicators 审中-公开
    着色剂组合物及其作为pH敏感颜色指示剂的用途

    公开(公告)号：US20080113868A1

    公开(公告)日：2008-05-15

    申请号：US11595450

    申请日：2006-11-09

    申请人： Patrick D. Moore ,  Lacey D. Hilliard ,  Michael A. Valenti

    发明人： Patrick D. Moore ,  Lacey D. Hilliard ,  Michael A. Valenti

    IPC分类号： D06P5/13 ,  A01N25/00 ,  C07C211/44 ,  C07C63/331 ,  A61K47/16

    CPC分类号： C09B69/00 ,  G01N31/221

    摘要： This invention relates to compositions of Bis-(N,N disubstituted-aminophenyl)phenyl methane colorants that decolorize rapidly when applied to surfaces having a basic pH, such as concrete, but remain visually apparent on vegetation and soil. These compositions can also be used as pH indicators in their colorless form by developing color on acidic surfaces or in acidic materials, such as in/on paint, ice, concrete, and acid cured polymer systems. The compositions are also useful as spray pattern indicators for landscaping, construction, and golf course applications. The compositions also exhibit reduced toxicity when compared to other traditional colorants of similar shade used as spray pattern indicators.

    摘要翻译： 本发明涉及双（N，N二取代 - 氨基苯基）苯基甲烷着色剂的组合物，其在施用于具有碱性pH的表面（例如混凝土）上快速脱色，但在植被和土壤上保持视觉上明显。 这些组合物也可以通过在酸性表面上或在酸性材料（如涂料，冰，混凝土和酸固化聚合物体系中）上显色而以无色形式用作pH指示剂。 该组合物也可用作景观美化，施工和高尔夫球场应用的喷雾图案指示剂。 与用作喷雾图案指示剂的类似阴影的其它传统着色剂相比，组合物还显示出降低的毒性。