POLYARYLENE SULFIDE-CONTAINING POLYMER MELT
    3.
    发明申请
    POLYARYLENE SULFIDE-CONTAINING POLYMER MELT 审中-公开
    含聚合物硫化聚合物熔体

    公开(公告)号:US20130005889A1

    公开(公告)日:2013-01-03

    申请号:US13634887

    申请日:2011-03-23

    IPC分类号: C08L81/04 C08K3/22 C08K5/098

    摘要: This invention relates to methods for decreasing the complex viscosity of a polyarylene sulfide polymer melt while maintaining the molecular weight of the polyarylene sulfide with time. This invention also relates to polymer melt compositions comprising a polyarylene sulfide, wherein the complex viscosity of the composition is decreased relative to the complex viscosity of the native polyarylene sulfide measured under the same conditions, and the weight average molecular weight of the polyarylene sulfide is maintained. The methods of decreasing the complex viscosity of a polyarylene sulfide-containing polymer melt, and the polymer melt compositions so obtained, are useful in processes to produce fibers, films, nonwovens, and molded parts from polyarylene sulfides.

    摘要翻译: 本发明涉及降低聚芳硫醚聚合物熔体的复数粘度同时保持聚芳硫醚的分子量随时间的方法。 本发明还涉及包含聚芳硫醚的聚合物熔融组合物,其中组合物的复合粘度相对于在相同条件下测量的天然聚芳硫醚的复数粘度降低,并且保持聚芳硫醚的重均分子量 。 降低含聚芳硫醚的聚合物熔体的复数粘度的方法和如此获得的聚合物熔体组合物可用于从聚亚芳基硫化物制备纤维,膜,无纺布和模制部件的方法中。

    Cure acceleration of polymeric structures
    4.
    发明授权
    Cure acceleration of polymeric structures 有权
    聚合物结构的固化加速

    公开(公告)号:US08946358B2

    公开(公告)日:2015-02-03

    申请号:US13634697

    申请日:2011-03-22

    摘要: A method for accelerating the curing of a polyarylene sulfide. The polyarylene sulfide is blended with a cure accelerator to form a mixture where the weight percentage of accelerator is between 0.2% and 15.0% of the total weight of the blend. The mixture is cured at 320° C. or above for at least 20 minutes. The cure accelerator is a compound selected from the group consisting of ionomers, hindered phenols, polyhydric alcohols, polycarboxylates, and mixtures of the foregoing.

    摘要翻译: 一种加速聚芳硫醚固化的方法。 将聚芳硫醚与固化促进剂混合以形成混合物,其中促进剂的重量百分数在共混物的总重量的0.2%至15.0%之间。 混合物在320℃以上固化至少20分钟。 固化促进剂是选自离聚物,受阻酚,多元醇,多羧酸盐以及前述物质的混合物的化合物。