Organically post-treated pigments and methods for their production
    1.
    发明授权
    Organically post-treated pigments and methods for their production 失效
    有机后处理颜料及其生产方法

    公开(公告)号:US06340387B1

    公开(公告)日:2002-01-22

    申请号:US09515570

    申请日:2000-02-29

    IPC分类号: C09C304

    摘要: A method for preparing high quality pigments having improved wettability, dispersibility and gloss characteristics, which method comprises grinding a pigment base material in a jet mill in the presence of an organic grinding aid, recovering ground pigment particles having a first organic layer, comprising the organic grinding aid, and treating the recovered pigment particles with an organic material, forming a second organic layer on the pigment particles, for improving the wettability, dispersibility and gloss characteristics of the treated pigment particles. Titanium dioxide, both untreated and pretreated with an inorganic coating, may be processed according to the method herein to yield high quality titanium dioxide pigment having improved wettability, dispersibility and gloss characteristics. The titanium dioxide pigment is particularly suitable for use in water-thinnable paint systems.

    摘要翻译: 一种制备具有改善的润湿性,分散性和光泽特性的高品质颜料的方法,所述方法包括在有机研磨助剂的存在下在喷射磨中研磨颜料基材,回收具有第一有机层的研磨颜料颗粒,其包含有机 研磨助剂和用有机材料处理回收的颜料颗粒,在颜料颗粒上形成第二有机层,以改善处理的颜料颗粒的润湿性,分散性和光泽特性。 可以根据本文的方法处理未处理和用无机涂层预处理的二氧化钛,以产生具有改善的润湿性,分散性和光泽特性的高品质二氧化钛颜料。 二氧化钛颜料特别适合用于水稀释涂料体系。