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    High-strength chemically resistant thin sheath fibers and methods of manufacture
    9.
    发明授权
    High-strength chemically resistant thin sheath fibers and methods of manufacture 失效
    高强度耐化学性薄鞘纤维及其制造方法

    公开(公告)号：US06703122B2

    公开(公告)日：2004-03-09

    申请号：US10186855

    申请日：2002-07-01

    申请人： Qiang Zhou ,  Alexander Lobovsky ,  James Matrunich ,  Conor Twomey ,  Barbara McGrath

    发明人： Qiang Zhou ,  Alexander Lobovsky ,  James Matrunich ,  Conor Twomey ,  Barbara McGrath

    IPC分类号： D01F800

    CPC分类号： D01F8/06 ,  D01F8/10 ,  D01F8/12 ,  D01F8/14 ,  Y10T428/2913 ,  Y10T428/2924 ,  Y10T428/2929 ,  Y10T428/2931 ,  Y10T428/2965

    摘要： Compositions and methods are directed to a sheath core fiber with a core and a sheath that comprises a fluoropolymer. Contemplated sheath materials include PVDF, ECTFE, and ETFE, and may have an apparent shear viscosity equal to or less than the apparent shear viscosity of the core material. Especially contemplated sheaths have a weight of 30% or less of the weight of the fiber. Preferred fibers are spun in a spin pack having a sheath material conduit with a ratio of open volume to sheath material mass flow of less than 0.75 for a fiber with a 30 wt % sheath, of less than 1.15 for a fiber with a 20 wt % sheath, and of less than 2.30 for a fiber with a 10 wt % sheath

    摘要翻译： 组合物和方法涉及具有包含氟聚合物的芯和鞘的皮芯纤维。 考虑的护套材料包括PVDF，ECTFE和ETFE，并且可以具有等于或小于芯材料的表观剪切粘度的表观剪切粘度。 特别设想的护套具有纤维重量的30％或更小的重量。 优选的纤维在具有护套材料管道的纺丝组件中旋转，对于具有30重量％护套的纤维，具有小于0.75的开放体积与皮质材料质量流量的比小于0.75，对于具有20重量％ 对于具有10重量％护套的纤维，小于2.30