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    • 51. 发明申请
    • NON-AQUEOUS PIGMENT DISPERSIONS CONTAINING SPECIFIC DISPERSION SYNERGISTS
    • 含有特殊分散体合成剂的非水性色素分散体
    • WO2007060263A2
    • 2007-05-31
    • PCT/EP2006069019
    • 2006-11-28
    • AGFA GRAPHICS NVDEROOVER GEERTPOINT NICOLAS
    • DEROOVER GEERTPOINT NICOLAS
    • C09D11/36C09B67/0046C09B67/0051C09B67/0055C09B67/0086C09B67/009C09D11/101C09D11/322C09D11/326C09D11/40
    • Abstract A non-aqueous pigment dispersion comprising a colour pigment, a polymeric dispersant, and a dispersion synergist characterized in that the molecular weight of the anionic part of the dispersion synergist containing at least one carboxylate anion is smaller than 98% of the molecular weight of the colour pigment and that the anionic part of the dispersion synergist has a similarity coefficient SIM of at least 0.5 with the similarity coefficient defined by: (I) wherein, S represents the number of atoms in the anionic part of the dispersion synergist; P represents the number of atoms in the colour pigment; C represents the largest number of atoms in common between the anionic part of the dispersion synergist and the colour pigment as one continuous structure; and t is an integer representing the number of times that the largest number of atoms in common C fits into the organic colour pigment, without using atoms of the colour pigment twice. Methods of preparing the non-aqueous pigment dispersions are also disclosed.
    • 摘要一种非水性颜料分散体,其包含着色颜料,聚合物分散剂和分散协同剂,其特征在于含有至少一种羧酸根阴离子的分散协同剂的阴离子部分的分子量小于分子量的98% 着色颜料和分散协同剂的阴离子部分具有至少为0.5的相似系数SIM,其相似系数由以下定义:(I)其中,S表示分散协同剂的阴离子部分中的原子数; P表示着色颜料中的原子数; C表示作为一个连续结构的分散增效剂的阴离子部分和彩色颜料之间共同的最大原子数; 并且t是表示在不使用彩色颜料的原子两次的情况下,普通C中最大数量的原子配合到有机彩色颜料中的次数的整数。 还公开了制备非水性颜料分散体的方法。