PIGMENT DISPERSION AND AQUEOUS INK FOR INKJET RECORDING
    1.
    发明申请
    PIGMENT DISPERSION AND AQUEOUS INK FOR INKJET RECORDING 有权
    颜料分散和水性墨水喷墨记录

    公开(公告)号:US20110184123A1

    公开(公告)日:2011-07-28

    申请号:US13121547

    申请日:2009-09-16

    IPC分类号: C08L75/00

    摘要: There is provided a pigment dispersion including water, an aqueous polymer and a pigment as essential components, wherein the aqueous polymer is a carboxyl group-containing polyurethane which is formed by reacting a diol compound, a diisocyanate compound and a reaction product, which is mainly composed of a compound represented by general formula (1) and prepared by reacting a diol compound having one or two carboxyl groups within each molecule with a diisocyanate compound and which also has a reaction index as calculated by (Formula 1) within a range from 0.95 to 1.10. Reaction index=(reaction rate of isocyanate group)×[(number of moles of diisocyanate compound(B))/(number of moles of diol compound(A))]  (Formula 1)

    摘要翻译: 提供了包含水,聚合物和颜料作为必要成分的颜料分散体,其中,水性聚合物是通过使二醇化合物,二异氰酸酯化合物和反应产物反应形成的含羧基的聚氨酯,其主要是 由通式(1)表示的化合物组成,其通过使各分子内具有一个或两个羧基的二醇化合物与二异氰酸酯化合物反应制备,并且其反应指数(式1)的计算值在0.95以下 至1.10。 反应指数=(异氰酸酯基的反应速度)×[(二异氰酸酯化合物(B)的摩尔数)/(二醇化合物(A)的摩尔数)](式1)