利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.017 秒)

    High-strength chemically resistant thin sheath fibers and methods of manufacture
    6.
    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

    Polymeric additives and polymeric articles comprising said additive
    10.
    发明授权
    Polymeric additives and polymeric articles comprising said additive 失效
    包含所述添加剂的聚合物添加剂和聚合物制品

    公开(公告)号：US06777496B2

    公开(公告)日：2004-08-17

    申请号：US09778333

    申请日：2001-02-07

    申请人： Kundan M. Patel ,  Charles Jay Nelson ,  Frank Mares ,  Conor Twomey ,  Yousef Mohajer

    发明人： Kundan M. Patel ,  Charles Jay Nelson ,  Frank Mares ,  Conor Twomey ,  Yousef Mohajer

    IPC分类号： C08L6702

    CPC分类号： B60C9/0042 ,  C08J3/005 ,  C08L23/02 ,  C08L67/02 ,  C08L77/00 ,  D01F6/92 ,  Y10T152/10 ,  Y10T428/249933 ,  C08L23/00

    摘要： We have developed a process and product which provide thermoplastic articles featuring a permanent outer surface which has selectively varied chemical functionality while maintaining the inherent mechanical properties of the base fiber. The process comprises the steps of: (a) adding a substantially organic molten component with CSP value of at least 8 to a molten thermoplastic polymer and mixing to substantially uniformly disperse the molten component in the molten thermoplastic polymer and form a heterogeneous blend wherein (i) the melt viscosity of the molten component is substantially less than the melt viscosity of the molten thermoplastic polymer; and (ii) the amount of the molten component in the molten thermoplastic polymer is up to about ten percent by weight based on the heterogeneous blend; and (b) melt processing the heterogeneous blend wherein the molten component preferentially locates near the surface of the molten thermoplastic polymer and substantially no chemical reaction occurs between the molten component and the molten thermoplastic polymer.

    摘要翻译： 我们开发了一种工艺和产品，其提供具有永久性外表面的热塑性制品，其具有选择性变化的化学功能，同时保持基础纤维的固有机械性能。 该方法包括以下步骤：（a）将CSP值至少为8的基本上有机的熔融组分加入到熔融的热塑性聚合物中并混合以使熔融组分基本均匀地分散在熔融的热塑性聚合物中并形成非均相共混物，其中（i ）熔融组分的熔体粘度基本上小于熔融热塑性聚合物的熔体粘度; 和（ii）熔融热塑性聚合物中的熔融组分的量基于异质混合物高达约10重量％; 和（b）熔融加工非均相共混物，其中熔融组分优选位于熔融热塑性聚合物的表面附近，并且在熔融组分和熔融热塑性聚合物之间基本上不发生化学反应。