Process for preparing pigments
    6.
    发明授权
    Process for preparing pigments 有权
    颜料制备方法

    公开(公告)号:US07682444B2

    公开(公告)日:2010-03-23

    申请号:US11824787

    申请日:2007-07-03

    摘要: Process for preparing pigments of the formula (I) or tautomeric structures thereof and their hydrates, containing melamine as guest, characterized in that a mixture of the azobarbituric mono-cation salt (II) and the azobarbituric di-cation salt (III) is reacted with a nickel compound and melamine, in which cation1, cation2 and cation3 independently of one another are any desired univalent cations or the fraction of any desired multivalent cation that corresponds to a positive charge of one.

    摘要翻译: 用于制备式(I)的颜料或其互变异构结构及其水合物的方法,其含有三聚氰胺作为客体,其特征在于偶氮巴比妥单阳离子盐(II)和偶氮巴比妥二阳离子盐(III)的混合物反应 具有镍化合物和三聚氰胺,其中阳离子1,阳离子2和阳离子3彼此独立地是任何所需的一价阳离子或对应于一个正电荷的任何所需多价阳离子的部分。

    Continuous process for preparing metal complex pigments
    7.
    发明授权
    Continuous process for preparing metal complex pigments 失效
    制备金属络合物颜料的连续工艺

    公开(公告)号:US06448385B2

    公开(公告)日:2002-09-10

    申请号:US09821888

    申请日:2001-03-30

    IPC分类号: C09B4514

    摘要: The invention relates to a process for preparing metal complexes of polyvalent metal ions with azo compounds of formula (I) or tautomeric structures, in which R and R′ are —OH, —NH2, —NH—CN, aryl-amino, acylamino, or p-chlorophenyl, and R1 and R1′ are independently —OH or —NH2, that intercalate an intercalate by (1) stirring an aqueous dispersion of an alkali metal salt of the azo compound with the polyvalent metal salt at 10 to 35° C., (2) admixing an aqueous solution, dispersion, or emulsion of the intercalate, (3) passing the mixture through a reaction zone at 85 to 140° C., while regulating the pH so that the product dispersion leaving the reaction zone has a pH of 0.5 to 3, (4) adjusting the pH of the mixture to at least pH 5, and (5) isolating the intercalated metal complex.

    摘要翻译: 本发明涉及一种制备多价金属离子金属络合物与式(I)的偶氮化合物或互变异构结构的方法,其中R和R'是-OH,-NH 2,-NH-CN,芳基 - 氨基,酰基氨基, 或对氯苯基,R1和R1'独立地为-OH或-NH2,其通过以下步骤插入插层:(1)在10至35℃下,将偶氮化合物的碱金属盐的水分散体与多价金属盐一起搅拌 (2)将嵌入物的水溶液,分散液或乳液混合,(3)在85-140℃下使混合物通过反应区,同时调节pH,使离开反应区的产物分散体具有 pH为0.5至3,(4)将混合物的pH调节至至少pH 5,和(5)分离插入的金属络合物。