AQUEOUS POLYURETHANE RESIN DISPERSION, PROCESS FOR PREPARING THE SAME AND USE THEREOF
    5.
    发明申请
    AQUEOUS POLYURETHANE RESIN DISPERSION, PROCESS FOR PREPARING THE SAME AND USE THEREOF 审中-公开
    水性聚氨酯树脂分散体,其制备方法和用途

    公开(公告)号:US20120238701A1

    公开(公告)日:2012-09-20

    申请号:US13508934

    申请日:2010-11-08

    IPC分类号: C09D175/06

    摘要: An object is to obtain an aqueous polyurethane resin dispersion which provides a coating film having high hardness, oleic acid resistance and solvent resistance.The aqueous polyurethane resin dispersion comprises a polyurethane resin obtained by reacting (a) a polyol compound, (b) a polyisocyanate compound, (c) an acidic group-containing polyol compound and (d) a chain-elongating agent being dispersed in an aqueous medium, wherein (a) the polyol compound comprises a polycarbonate polyol compound represented by the formula (1), a hydroxyl equivalent of (a) the polyol compound and (c) the acidic group-containing polyol compound is 180 to 400, and a total acid value of (a) the polyol compound, (b) the polyisocyanate compound and (c) the acidic group-containing polyol compound is 22 to 40 mg KOH/g.

    摘要翻译: 本发明的目的是获得提供具有高硬度,耐油酸性和耐溶剂性的涂膜的水性聚氨酯树脂分散体。 水性聚氨酯树脂分散体包含通过使(a)多元醇化合物,(b)多异氰酸酯化合物,(c)含酸性基团的多元醇化合物和(d)分散在水性聚合物中的增链剂 其中(a)多元醇化合物包含由式(1)表示的聚碳酸酯多元醇化合物,(a)多元醇化合物的羟基当量和(c)含酸性基团的多元醇化合物的摩尔比为180-400,和 (a)多元醇化合物,(b)多异氰酸酯化合物和(c)含酸性基团的多元醇化合物的总酸值为22〜40mgKOH / g。