Engineering thermoplastic polyurethane reinforced with glass mat
    7.
    发明申请
    Engineering thermoplastic polyurethane reinforced with glass mat 失效
    工程热塑性聚氨酯增强玻璃垫

    公开(公告)号:US20020119719A1

    公开(公告)日:2002-08-29

    申请号:US10066520

    申请日:2002-01-31

    摘要: The present invention provides a glass mat thermoplastic comprising a glass mat impregnated with an engineering thermoplastic polyurethane (ETPU) having a Tg of at least 50null C. The glass mat thermoplastic can be prepared, for example, by a) contacting a continuous glass mat with ETPU film or sheet, or between ETPU films or sheets, with sufficient pressure and heat to form a multilayered structure which contains a wetted out glass mat layer sandwiched between an ETPU layer and a glass mat layer, b) thermoforming or compression molding the multilayered structure with sufficient heat to substantially completely wet out the glass mat with the ETPU; and c) cooling the substantially wetted out thermoformed glass mat to a temperature below the Tg of the ETPU. The efficiency with which the depolymerizable and repolymerizable ETPU can be impregnated into the glass mat matrix results in a GMT with excellent physical properties.

    摘要翻译: 本发明提供一种玻璃垫热塑性塑料,其包括浸渍有Tg至少为50℃的工程热塑性聚氨酯(ETPU)的玻璃垫。玻璃毡热塑性塑料可以通过例如a)使连续玻璃垫 用ETPU膜或片材,或ETPU膜或片之间,以足够的压力和热量形成多层结构,其包含夹在ETPU层和玻璃垫层之间的润湿玻璃垫层,b)热成型或压塑多层 结构具有足够的热量以使用ETPU基本上完​​全润湿玻璃垫; 以及c)将基本润湿的热成型玻璃垫冷却至低于ETPU的Tg的温度。 可解聚和可重复聚合的ETPU可以浸渍到玻璃垫基质中的效率产生具有优异物理性质的GMT。