Aqueous polyurethane dispersions obtained by the use of caesium salts
    3.
    发明申请
    Aqueous polyurethane dispersions obtained by the use of caesium salts 审中-公开
    通过使用铯盐获得的水性聚氨酯分散体

    公开(公告)号:US20070203289A1

    公开(公告)日:2007-08-30

    申请号:US11797004

    申请日:2007-04-30

    IPC分类号: C08K3/00 C08G18/08

    摘要: Aqueous dispersions comprising a polyurethane composed of a) diisocyanates, b) diols of which b1) from 10 to 100 mol %, based on the total amount of diols (b), have a molecular weight of from 500 to 5000, and b2) from 0 to 90 mol %, based on the total amount of diols (b), have a molecular weight of from 60 to 500 g/mol, c) monomers other than the monomers (a) and (b), containing at least one isocyanate group or at least one isocyanate-reactive group and further carrying at least one hydrophilic group or potentially hydrophilic group by means of which the polyurethane is made dispersible in water, d) if desired, further, polyfunctional compounds other than the monomers (a) to (c), containing reactive groups which are alcoholic hydroxyl groups, primary or secondary amino groups or isocyanate groups, and e) if desired, monofunctional compounds which are other than the monomers (a) to (d) and contain a reactive group which is an alcoholic hydroxyl group, a primary or secondary amino group or an isocyanate group, obtainable by reacting the monomers a), b), c), and, where used, d) and e) in the presence of a cesium salt.

    摘要翻译: 基于二醇(b)的总量,包含由a)二异氰酸酯,b)二醇组成的聚氨酯,b)二醇,其中b 1〜10摩尔%的分子量为 500〜5000,b 2 O 2)为0〜90摩尔%,基于二醇(b)的总量,分子量为60〜500g / mol,c)单体等 包含至少一个异氰酸酯基团或至少一个异氰酸酯反应性基团的单体(a)和(b)),并进一步携带至少一个亲水基团或潜在的亲水基团,通过该基团将聚氨酯分散在水中,d )另外,除单体(a)〜(c)以外还含有醇性羟基,伯或仲氨基或异氰酸酯基的反应性基团的多官能化合物,以及e)如果需要,除单体 单体(a)〜(d),含有醇性羟基的反应性基团 仲氨基或异氰酸酯基团,可通过使单体a),b),c)和d d)和e)在铯盐存在下反应而得到。