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    • 8. 发明申请
    • AQUEOUS PIGMENT DISPERSIONS
    • 水性色素分布
    • US20140251179A1
    • 2014-09-11
    • US14195901
    • 2014-03-04
    • Cabot Corporation
    • Tianqi LiuAndrew P. Dikan
    • C09D11/00C08K13/06
    • C09D11/326C01B32/05C01P2006/12C01P2006/19C01P2006/22C08K13/06C09C1/48C09D11/324C09D17/001C09D17/005
    • Disclosed herein are aqueous dispersions comprising: at least one pigment present in an amount of at least 10% by weight relative to the total weight of the dispersion, the at least one pigment being selected from oxidized carbon blacks and modified carbon blacks having attached at least one organic group; and at least one organic solvent present in an amount of at least 10% by weight relative to the total weight of the dispersion, the at least one organic solvent having a Hansen hydrogen bonding parameter (δH) ranging from 13 to 50 MPa0.5, and a Hansen polarity parameter (δp) ranging from 5 to 13 MPa0.5, wherein the dispersion is substantially free of a surfactant. Also disclosed are methods of preparing aqueous dispersions and injet ink compositions prepared from the same.
    • 本文公开了含水分散体,其包含:相对于分散体的总重量为至少10重量%的至少一种颜料,所述至少一种颜料选自氧化炭黑和至少具有附着的改性炭黑 一个有机组; 和至少一种有机溶剂,其相对于分散体的总重量为至少10重量%,所述至少一种有机溶剂的Hansen氢键参数(δH)为13〜50MPa·0.5, 和Hansen极性参数(δp)在5至13MPa0.5之间,其中分散体基本上不含表面活性剂。 还公开了制备水性分散体和喷射由其制备的油墨组合物的方法。