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    • 8. 发明授权
    • Aqueous polyurethane-polyurethane urea dispersions, adhesives containing the same, processes for the preparation thereof and uses therefore
    • 水性聚氨酯 - 聚氨酯脲分散体,含有它们的粘合剂,其制备方法和用途
    • US08586185B2
    • 2013-11-19
    • US12741887
    • 2008-10-24
    • Harald KrausWolfgang HenningWolfgang Arndt
    • Harald KrausWolfgang HenningWolfgang Arndt
    • B32B27/40C08L75/04C09J175/04
    • C08G18/4238C08G18/0828C08G18/12C08G18/283C08G18/4202C08G18/664C08G18/722C08G2170/80C09J175/12Y10T428/31551Y10T428/31573Y10T428/31591C08G18/3271C08G18/3857
    • Aqueous polyurethane-polyurethane urea dispersions comprising a reaction product of: (i) an NCO prepolymer prepared from; (A) one or more di- or higher-functional polyols having a mean molecular weight of 400 to 5000 daltons, (B) optionally one or more di- or higher-functional polyol components having a molecular weight of from 62 to 399 daltons, (C) one or more compounds which are monofunctional within the scope of the isocyanate polyaddition reaction and have an ethylene oxide content of at least 50 wt. % and a molecular weight of at least 400 daltons, and (D) one or more di- or poly-isocyanate components; and (ii) a mixture (E) of primary and/or secondary monoamino compounds (E1) and primary and/or secondary diamino compounds (E2); wherein at least one of the amino compounds of the mixture (E) has a functional group selected from sulfonates and carboxylates; wherein mixture (E) has a mean amino functionality of 1.65 to 1.95; and wherein the equivalent ratio of NCO groups in the NCO prepolymer to the total amount of isocyanate-reactive groups of the mixture (E) is 1.04 to 1.9; to processes for their preparation and to use thereof in the production of adhesive composites.
    • 水性聚氨酯 - 聚氨酯脲分散体包含以下反应产物:(i)由下列物质制备的NCO预聚物: (A)一种或多种平均分子量为400至5000道尔顿的二官能或更高官能的多元醇,(B)任选的一种或多种分子量为62至399道尔顿的二官能或更高官能的多元醇组分, (C)一种或多种在异氰酸酯加聚反应范围内是单官能的化合物,其环氧乙烷含量至少为50wt。 %和分子量至少400道尔顿,和(D)一种或多种二异氰酸酯或多异氰酸酯组分; 和(ii)伯和/或仲单氨基化合物(E1)和伯和/或仲二氨基化合物(E2)的混合物(E); 其中所述混合物(E)的至少一种氨基化合物具有选自磺酸盐和羧酸盐的官能团; 其中混合物(E)的平均氨基官能度为1.65至1.95; 并且其中NCO预聚物中NCO基团与混合物(E)的异氰酸酯反应性基团的总量的当量比为1.04至1.9; 其制备方法及其在粘合剂复合材料的制备中的应用。