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    • 1. 发明申请
    • POLYMERIZATES THAT CAN BE PRODUCED BY THE EMULSION POLYMERIZATION OF FUNCTIONALIZED POLYURETHANE NANOPARTICLES AND RADICALLY CURABLE MONOMERS, A METHOD FOR THE PRODUCTION OF SAID POLYMERIZATES, AND USE OF SAID POLYMERIZATES
    • 通过功能性聚氨酯纳米颗粒和无定形固化单体的乳液聚合制备聚合物,制备聚合物的方法和使用聚合物
    • US20150072080A1
    • 2015-03-12
    • US14394403
    • 2013-04-16
    • Dritte Patentportfolio Beteiligungsgesellschaft mbH & Co. KG
    • Jorge Rodriguez PrietoKlaus-Uwe KochKirsten Siebertz
    • C08L75/04C09D175/04B05D3/04C09J175/04
    • C08L75/04B05D3/04C08G18/0842C08G18/12C08G18/6674C08G18/6715C08G18/69C08G18/73C09D175/04C09D175/16C09J175/04C09J175/16C08G18/2805
    • The invention relates to polymerizates that can be obtained by a) reacting at least one polyisocyanate with at least one polyol and optionally at least one radically curable monomer A with groups reactive toward isocyanate in at least one radically curable monomer B to form polyurethane particles having an average diameter of less than 40 nm, preferably less than 20 nm, and especially preferably less than 10 nm and an average number of radically curable functionalities in a range of 2 to 4, preferably 2 to 3, and b) emulsion polymerizing the product obtained under a). By means of the emulsion polymerization, larger cross-linked polyurethane/polymer hybrid dispersions are produced, in which the nanoparticles act as a connecting member between the polymer areas and the polyurethane components. This structure results in improved chemical resistance and significantly improved mechanical properties in comparison with traditional polyurethane dispersions, in which polyurethane nanoparticles are subsequently dispersed in polyacrylates, for example by means of an acetone method. Furthermore, the content of polyurethane in the polymer can be better controlled by means of this production method. The invention further relates to a method for producing such polymerizates and the use of such polymerizates as adhesives or coatings, in particular for textiles, or as paints, or for films and foils.
    • 本发明涉及可以通过以下方式获得的聚合物:a)使至少一种多异氰酸酯与至少一种多元醇和任选的至少一种可自由基固化的单体A与至少一种可自由基固化的单体B中的异氰酸酯反应的基团反应,以形成具有 平均直径小于40nm,优选小于20nm,特别优选小于10nm,可自由基固化官能度的平均数在2至4,优选2至3的范围内,以及b)将获得的产物乳液聚合 在a)下。 通过乳液聚合,产生较大的交联聚氨酯/聚合物混合分散体,其中纳米颗粒充当聚合物区域和聚氨酯组分之间的连接构件。 与传统的聚氨酯分散体相比,这种结构导致改进的耐化学性和显着改善的机械性能,其中聚氨酯纳米颗粒随后分散在聚丙烯酸酯中,例如通过丙酮法。 此外,通过该制造方法可以更好地控制聚合物中的聚氨酯的含量。 本发明还涉及一种生产这种聚合物的方法以及这种聚合物作为粘合剂或涂料,特别是纺织品,或作为涂料,或用于薄膜和箔片的用途。