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106 条记录 (耗时 0.031 秒)

    COMPOSITE SEMIFINISHED PRODUCTS, MOLDED PARTS PRODUCED THEREFROM, AND MOLDED PARTS PRODUCED DIRECTLY BASED ON HYDROXY-FUNCTIONALIZED (METH)ACRYLATES, WHICH ARE CROSS-LINKED BY MEANS OF URETDIONES IN A THERMOSETTING MANNER
    3.
    发明申请
    COMPOSITE SEMIFINISHED PRODUCTS, MOLDED PARTS PRODUCED THEREFROM, AND MOLDED PARTS PRODUCED DIRECTLY BASED ON HYDROXY-FUNCTIONALIZED (METH)ACRYLATES, WHICH ARE CROSS-LINKED BY MEANS OF URETDIONES IN A THERMOSETTING MANNER 有权
    复合半成品，由其生产的成型部件，以及基于羟基官能化（甲基）丙烯酸酯的直接生产的成型部件，其通过在热疗器中的尿素交联而形成

    公开(公告)号：US20130323993A1

    公开(公告)日：2013-12-05

    申请号：US13978059

    申请日：2011-12-01

    申请人： Guenter Schmitt ,  Sandra Reemers ,  Emmanouil Spyrou ,  Heike Heeb ,  Stephan Kohlstruk ,  Friedrich Georg Schmidt ,  Elke Gollan

    发明人： Guenter Schmitt ,  Sandra Reemers ,  Emmanouil Spyrou ,  Heike Heeb ,  Stephan Kohlstruk ,  Friedrich Georg Schmidt ,  Elke Gollan

    IPC分类号： B29C70/06

    CPC分类号： B29C70/06 ,  C08J5/24 ,  Y02B10/30 ,  Y10T442/20 ,  Y10T442/2762 ,  Y10T442/2861 ,  Y10T442/2984 ,  Y10T442/2992

    摘要： The invention relates to a process for producing polyurethane prepregs which are stable during storage, and to mouldings (composite components) produced therefrom. The prepregs or components are produced by mixing (meth)acrylate monomers, (meth)acrylate polymers, hydroxy-functionalized (meth)acrylate monomers and/or hydroxy-functionalized (meth)acrylate polymers with uretdione materials and moreover with aromatic amines which accelerate a free-radical polymerization reaction. This mixture or solution is applied by known processes to fibre material, e.g. carbon fibres, glass fibres or polymer fibres, and is polymerized at room temperature or higher temperatures with the aid of initiators, e.g. dibenzoyl peroxide. Instead of amine acceleration and subsequent hardening with initiators, it is also possible to use other known room-temperature curing systems, e.g. permaleate systems.Polymerization, e.g. at room temperature or at up to 80° C., gives thermoplastics or, respectively, thermoplastic prepregs which can subsequently be subjected to forming processes. By using elevated temperature, the hydroxy-functionalized acrylate constituents can then be crosslinked with the uretdiones already present in the system. It is thus possible to produce dimensionally stable thermosets and, respectively, crosslinked composite components.

    摘要翻译： 本发明涉及一种在储存期间稳定的聚氨酯预浸料的制造方法以及由其制备的模制品（复合部件）。 通过将（甲基）丙烯酸酯单体，（甲基）丙烯酸酯聚合物，羟基官能化的（甲基）丙烯酸酯单体和/或羟基官能化的（甲基）丙烯酸酯）聚合物与脲二酮材料混合，再加入芳族胺来加速预聚物 自由基聚合反应。 该混合物或溶液通过已知方法施用于纤维材料，例如 碳纤维，玻璃纤维或聚合物纤维，并且在室温或更高温度下借助于引发剂，例如， 过氧化二苯甲酰。 代替胺加速并随后用引发剂硬化，也可以使用其它已知的室温固化体系，例如， 复数系统 聚合，例如 在室温或高达80℃下，分别给出热塑性塑料或分别为热塑性预浸料，其随后可以进行成型工艺。 通过使用升高的温度，羟基官能化的丙烯酸酯成分可以与已经存在于体系中的脲化合物交联。 因此，可以生产尺寸稳定的热固性材料和分别交联的复合组分。