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    • 74. 发明申请
    • Ultraviolet Radiation Stabilized Polyarylene Sulfide Composition
    • 紫外辐射稳定聚亚芳基硫化物组成
    • US20130273283A1
    • 2013-10-17
    • US13799204
    • 2013-03-13
    • Ticona LLC
    • Ke FengRong LuoXinyu Zhao
    • C09K21/14D01G15/00
    • C09K21/14D01F1/106D01F6/765D01G15/00Y10T428/139Y10T428/2904Y10T428/298Y10T442/3089Y10T442/609
    • Disclosed is a UV stabilized polyarylene sulfide composition, methods of forming the composition, and UV stabilized products that can be formed of the composition. The UV stabilized polyarylene sulfide composition can include a reactively functionalized polyarylene sulfide polymer in conjunction with a UV stabilizer. The reactivity of the polyarylene sulfide polymer is formed during melt processing via reaction of a reactively functionalized disulfide compound with a starting polyarylene sulfide. The reactivity of the polyarylene sulfide can encourage interaction between the polyarylene sulfide polymer and the UV stabilizer, which can improve dispersion of the UV stabilizer throughout the composition and improve miscibility between the polyarylene sulfide polymer and the UV stabilizer. Products can incorporate high concentrations of UV stabilizer and/or can be formed to very small cross sectional dimensions without phase separation between the UV stabilizer and the polyarylene sulfide.
    • 公开了一种紫外线稳定化的聚芳硫醚组合物,形成组合物的方法和可以由该组合物形成的UV稳定化产物。 UV稳定化聚芳硫醚组合物可以包括与UV稳定剂结合的反应性官能化聚芳硫醚聚合物。 通过反应性官能化的二硫化物化合物与起始聚芳硫醚的反应,在熔融加工过程中形成聚芳硫醚聚合物的反应性。 聚芳硫醚的反应性可以促进聚芳硫醚聚合物和UV稳定剂之间的相互作用,这可以改善UV稳定剂在整个组合物中的分散,并改善聚芳硫醚聚合物和UV稳定剂之间的混溶性。 产品可以并入高浓度的UV稳定剂和/或可以形成非常小的横截面尺寸,而不会在UV稳定剂和聚芳硫醚之间相分离。
    • 75. 发明申请
    • Housing for a Portable Electronic Device
    • 便携式电子设备外壳
    • US20130249357A1
    • 2013-09-26
    • US13621865
    • 2012-09-18
    • TICONA LLC
    • Rong LuoXinyu ZhaoKe Feng
    • H05K5/03
    • H05K5/03C08G75/029C08K5/372C08K7/02C08L81/02
    • An injection molded housing for a portable electronic device is provided. The housing contains a thermoplastic composition that includes a polyarylene sulfide melt processed in the presence of a disulfide compound and a filler. Without intending to be limited by theory, it is believed that the disulfide can undergo a chain scission reaction with the starting polyarylene sulfide to lower its melt viscosity, which can lead to decreased attrition of the filler and thus improved mechanical properties. Due to this ability to reduce viscosity during melt processing, the present inventors have discovered that relatively high molecular weight polyarylene sulfides can be fed to the extruder with little difficulty.
    • 提供了一种用于便携式电子设备的注塑外壳。 壳体包含热塑性组合物,其包含在二硫化物化合物和填料的存在下加工的聚芳硫醚熔体。 不期望受理论的限制,相信二硫化物可以与起始聚芳硫醚发生断链反应以降低其熔体粘度,这可导致填料的磨损减少,从而改善机械性能。 由于这种在熔融加工过程中降低粘度的能力,本发明人已经发现,相对高分子量的聚亚芳基硫化物可以很少地进料到挤出机中。