ANIONIC MODIFIED POLYURETHANE DISPERSIONS
    4.
    发明申请
    ANIONIC MODIFIED POLYURETHANE DISPERSIONS 审中-公开
    阴离子改性聚氨酯分散体

    公开(公告)号:US20110217502A1

    公开(公告)日:2011-09-08

    申请号:US13127874

    申请日:2009-10-31

    摘要: The present invention relates to an aqueous polyurethane urea dispersion comprising a polyurethane urea polymer comprising structural units of the formula (I) wherein Aromat represents a compound selected from the group consisting of phenylene, tolylene, xylylene, tetramethylxylylene and diphenylenemethane, and wherein the polyurethane urea is obtained from components comprising A) at least one aromatic diisocyanate, B) at least one polyether polyol having a number-average molecular weight of from 300 to 1500 Da, C) at least one compound having one to two isocyanate-reactive groups and at least one ionogenic group, D) at least one polyol having a number-average molecular weight of from 60 to 499 Da, and E) water, wherein the average overall functionality of compounds B) to D) is from 1.85 to 2.2 and wherein the sum of the amount of aromatic urea groups and the amount of urethane groups is 2700 to 5000 mmol per kg polyurethane urea polymer.

    摘要翻译: 本发明涉及包含式(I)结构单元的聚氨酯脲聚合物的水性聚氨酯脲分散体,其中芳族化合物表示选自亚苯基,甲苯,亚二甲苯,四甲基亚二甲苯和二苯基甲烷的化合物,其中聚氨酯脲 包括A)至少一种芳族二异氰酸酯,B)至少一种数均分子量为300至1500Da的聚醚多元醇,C)至少一种具有一至二个异氰酸酯反应性基团的化合物和 至少一种离子型基团,D)至少一种数均分子量为60至499Da的多元醇,和E)水,其中化合物B)至D)的平均总官能度为1.85至2.2,其中 芳族脲基团的量和氨基甲酸酯基团的量的总和为2700至5000mmol / kg聚氨酯脲聚合物。