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    • 6. 发明申请
    • Aqueous Polyurethane Dispersions With A Small Content Of Cyclic Compounds
    • 具有小量环状化合物的水性聚氨酯分散体
    • US20080139741A1
    • 2008-06-12
    • US11815340
    • 2006-02-09
    • Andre BurghardtBarbel MeyerKarl HaberleKarl-Heinz SchumacherUlrike Licht
    • Andre BurghardtBarbel MeyerKarl HaberleKarl-Heinz SchumacherUlrike Licht
    • C08G18/02
    • C08G18/42C08G18/0823C08G18/0866C08G2290/00C09D175/04C09J175/04
    • Aqueous dispersions comprising a polyurethane synthesized froma) diisocyanates,b) diols of whichb1) from 10 to 100 mol %, based on the total amount of diols (b), have a molecular weight of from 500 to 5 000, andb2) 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 appropriate, 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, ande) if appropriate, monofunctional compounds other than the monomers (a) to (d), containing a reactive group which is an alcoholic hydroxyl group, a primary or secondary amino group or an isocyanate group,wherein the diols b1 comprise less than 0.5 part by weight of cyclic compounds per 100 parts by weight of diols b1.
    • 基于二醇(b)的总量,包含由a)二异氰酸酯,b)二醇(其中b 1〜2)合成的水分散体为10〜100摩尔%,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 除了含有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)以外,还含有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)如果合适,还可以含有单体(a)至(c)以外的含有醇羟基,伯或仲氨基或异氰酸酯基团的反应性基团的多官能化合物,以及e)如果合适,除 单体(a)〜(d),其含有醇性羟基的反应性基团 或仲氨基或异氰酸酯基,其中每100重量份二醇b1,二醇b 1包含小于0.5重量份的环状化合物。