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    AQUEOUS POLYURETHANE DISPERSION FOR WATERPROOF BREATHABLE COATINGS
    9.
    发明申请
    AQUEOUS POLYURETHANE DISPERSION FOR WATERPROOF BREATHABLE COATINGS 有权
    防水透气涂料的水性聚氨酯分散体

    公开(公告)号：US20140342624A1

    公开(公告)日：2014-11-20

    申请号：US14344416

    申请日：2012-09-11

    申请人： Sebastian Dörr ,  Hans Georg Grablowitz ,  Sophie Viala ,  Thomas Feller ,  Thomas Michaelis

    发明人： Sebastian Dörr ,  Hans Georg Grablowitz ,  Sophie Viala ,  Thomas Feller ,  Thomas Michaelis

    IPC分类号： C09D175/06

    CPC分类号： C09D175/06 ,  C08G18/0828 ,  C08G18/4238 ,  C08G18/6637 ,  C08G18/758 ,  C09D175/04 ,  D06N3/14 ,  D06N3/146 ,  D06N3/147 ,  D06N2209/123 ,  D06N2209/128 ,  Y10T428/31551 ,  Y10T428/31598 ,  Y10T428/31605 ,  Y10T442/20 ,  C08G18/10 ,  C08G18/3857 ,  C08G18/3228

    摘要： Aqueous polyurethane dispersion for waterproof breathable coatings An aqueous polyurethane dispersion comprises a polyurethane polymer obtainable by the reaction of an isocyanate-functional polyurethane prepolymer A) with an isocyanate-reactive component B), wherein the isocyanate-functional prepolymer A) is obtainable by the reaction of a mixture comprising: a polyol component comprising a polyester polyol obtainable by the reaction of a mixture comprising an aliphatic dicarboxylic acid and at least one diol selected from the group consisting of linear aliphatic diols and a branched aliphatic diols; and a polyisocyanate component comprising ≧50 weight-%, based on the total weight of polyisocyanates, of dicyclohexylmethane diisocyanate. The isocyanate-reactive component B) comprises a compound comprising sulfonate groups which is employed in an amount of ≧3.5 weight-% to ≦10 weight-%, based on the total weight of the polyol component, the polyisocyanate component and the isocyanate-reactive component B).The invention also concerns the use of such an aqueous polyurethane dispersion for coatings, a method of manufacturing a coated substrate and to a coated substrate.

    摘要翻译： 用于防水透气涂层的水性聚氨酯分散体水性聚氨酯分散体包含通过异氰酸酯官能的聚氨酯预聚物A）与异氰酸酯反应性组分B）反应得到的聚氨酯聚合物，其中异氰酸酯官能的预聚物A）可通过反应 的混合物，其包含：多元醇组分，其包含通过包含脂族二羧酸和至少一种选自直链脂族二醇和支链脂族二醇的二醇的混合物反应获得的聚酯多元醇; 和包含基于多异氰酸酯的总重量的≥50重量％的二环己基甲烷二异氰酸酯的多异氰酸酯组分。 异氰酸酯反应性组分B）包含基于多元醇组分，多异氰酸酯组分和异氰酸酯组分的总重量的基于重量百分比为3.5重量％至10重量％的磺酸盐基团的化合物; 反应性组分B）。本发明还涉及这种用于涂料的水性聚氨酯分散体的用途，制备涂覆的基材的方法和涂覆的基材。