Method of preparing water-dispersible poly (urethane-urea) having aromatic-aliphatic isocyanate
    2.
    发明申请
    Method of preparing water-dispersible poly (urethane-urea) having aromatic-aliphatic isocyanate 失效
    制备具有芳族 - 脂族异氰酸酯的水分散性聚氨酯脲的方法

    公开(公告)号:US20050009984A1

    公开(公告)日:2005-01-13

    申请号:US10874327

    申请日:2004-06-24

    摘要: The present invention relates to a method of preparing water-dispersible poly (urethane-urea) having aliphatic-aromatic isocyanate, more particularly to a method of preparing water-dispersible poly (urethane-urea) having aliphatic-aromatic isocyanate, with improved mechanical/thermal properties, such as heat resistance, chemical resistance and adhesion, good cost competitiveness and environmental friendliness, by reacting polyester polyol, dimethylol propionic acid and an aromatic isocyanate compound to obtain a hydroxyl (OH)-terminated prepolymer, adding an aliphatic isocyanate compound to said OH-terminated prepolymer to obtain an isocyanate (NCO)-terminated prepolymer wherein aromatic-aliphatic isocyanate is hybridized, neutralizing, water-dispersing and chain extending said NCO-terminated prepolymer.

    摘要翻译: 本发明涉及一种制备具有脂族 - 芳族异氰酸酯的水分散性聚氨酯脲的方法,更具体地涉及制备具有脂肪族 - 芳族异氰酸酯的水分散性聚(氨基甲酸酯 - 尿素)的方法,其具有改进的机械/ 通过使聚酯多元醇,二羟甲基丙酸和芳族异氰酸酯化合物反应得到羟基(OH) - 终止的预聚物,加入脂族异氰酸酯化合物,加入脂族异氰酸酯化合物,加入脂肪族异氰酸酯化合物,得到热稳定性,耐化学性和粘合性,良好的成本竞争力和环境友好性 所述OH-封端的预聚物得到异氰酸酯(NCO)的预聚物,其中芳族 - 脂族异氰酸酯被杂化,中和,水分散和扩链所述NCO封端的预聚物。