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    • 3. 发明申请
    • A WINDOW SHADE AND A MULTI-LAYERED ARTICLE, AND METHODS OF MAKING THE SAME
    • 窗扇和多层文章及其制作方法
    • WO2009009308A1
    • 2009-01-15
    • PCT/US2008/068385
    • 2008-06-26
    • SABIC INNOVATIVE PLASTICS IP B.V.DONEA, ConstantinRANADE, Ajit
    • DONEA, ConstantinRANADE, Ajit
    • B32B27/18B32B27/36B64C1/14
    • B32B27/20B64C1/1484Y10T428/31507
    • In one embodiment, a multilayer article comprises: a core layer comprising a core layer polycarbonate resin, a core flame retardant additive, and an opacity additive, and a cap layer comprising a cap layer polycarbonate resin and a cap flame retardant additive. The core layer comprises a sufficient amount of core flame retardant additive and the cap layer comprises a sufficient amount of cap flame retardant additive such that the multilayer article can pass a smoke density test as set forth in FAR 25.5, Appendix F, Part V. In one embodiment, a method of making a multilayer article comprises: forming a core layer comprising a core layer thermoplastic resin, and a core non-brominated flame retardant additive, and forming a cap layer comprising a cap layer thermoplastic resin, a cap non-brominated flame retardant additive, and thermoforming the multi-layer film.
    • 在一个实施方案中,多层制品包括:芯层,包括芯层聚碳酸酯树脂,芯阻燃添加剂和不透明添加剂,以及包覆层聚碳酸酯树脂和帽阻燃添加剂的盖层。 核心层包括足够量的核心阻燃添加剂,并且盖层包含足够量的帽阻燃添加剂,使得多层制品可以通过FAR 25.5附录F第五部分所述的烟密度测试。 一个实施方案,制备多层制品的方法包括:形成包含芯层热塑性树脂的核心层和核心非溴化阻燃添加剂,以及形成包含帽层热塑性树脂的盖层,非溴化的帽 阻燃添加剂,以及热成型多层膜。