SURFACE MODIFIED BI-COMPONENT POLYMERIC FIBER
    1.
    发明申请
    SURFACE MODIFIED BI-COMPONENT POLYMERIC FIBER 审中-公开
    表面改性双组分聚合物纤维

    公开(公告)号:WO2007064728A1

    公开(公告)日:2007-06-07

    申请号:PCT/US2006/045725

    申请日:2006-11-29

    CPC classification number: D01F1/10 D01F8/06 Y10T428/2929 Y10T428/2931

    Abstract: The present invention provides a bicomponent fiber having increased surface roughness. The fiber includes a first polymer and a composite, wherein the composite forms a layer which forms at least a portion of the fiber's surface. The composite is formed by a second polymer and a filler, where an average particle size of the filler is greater than a thickness of the layer formed by the composite. The fibers can have a round, oval, trilobal, triangular, dog-boned, flat or hollow shape and a symmetrical or asymmetrical sheath/core or side-by-side configuration. When the fiber has a sheath/core configuration, the composite can form the sheath, and the average particle size of the filler is greater than the thickness of the sheath.

    Abstract translation: 本发明提供了具有增加的表面粗糙度的双组分纤维。 纤维包括第一聚合物和复合材料,其中复合物形成形成纤维表面的至少一部分的层。 复合材料由第二聚合物和填料形成,其中填料的平均粒径大于由复合材料形成的层的厚度。 纤维可以具有圆形,椭圆形,三叶形,三角形,狗骨形,扁平或中空形状和对称或不对称的护套/芯或并排配置。 当纤维具有鞘/芯构造时,复合材料可以形成护套,并且填料的平均粒径大于护套的厚度。

    SOFT AND EXTENSIBLE POLYPROPYLENE BASED SPUNBOND NONWOVENS
    3.
    发明申请
    SOFT AND EXTENSIBLE POLYPROPYLENE BASED SPUNBOND NONWOVENS 审中-公开
    柔软可伸缩的聚丙烯基弹性体非织造布

    公开(公告)号:WO2007140163A2

    公开(公告)日:2007-12-06

    申请号:PCT/US2007/069374

    申请日:2007-05-21

    CPC classification number: D04H3/16 D01F1/10 D01F6/46 Y10T442/608

    Abstract: The present invention relates to nonwoven webs or fabrics. In particular, the present invention relates to nonwoven webs having superior abrasion resistance and excellent softness characteristics. The nonwoven materials comprise fibers made from of a polymer blend of isotactic polypropylene and reactor grade propylene based elastomers or plastomers together with from 100 to 2500 ppm (by weight of the fiber) of a slip agent. The isotactic polypropylene can be homopolymer polypropylene, and/or random copolymers of propylene and one or more alpha-olefins. The reactor grade propylene based elastomers or plastomers have a molecular weight distribution of less than about 3.5, and a heat of fusion less than about 90 joules/gm. In particular, the reactor grade propylene based elastomers or plastomers contains from 3 to 15 percent by weight of units derived from an ethylene and a melt flow rate of from 2 to 200 grams/ 10 minutes. Erucamide is the preferred slip additive.

    Abstract translation: 本发明涉及非织造纤维网或织物。 特别地,本发明涉及非织造纤维网,其具有优异的耐磨性和优异的柔软性。 非织造材料包括由全同立构聚丙烯和反应器级丙烯基弹性体或塑性体的聚合物共混物以及100至2500ppm(重量比的纤维)的滑爽剂制成的纤维。 全同立构聚丙烯可以是均聚物聚丙烯,和/或丙烯与一种或多种α-烯烃的无规共聚物。 反应器级丙烯基弹性体或塑性体的分子量分布小于约3.5,熔融热小于约90焦耳/克。 特别地,反应器级丙烯基弹性体或塑性体含有3至15重量%的衍生自乙烯的单元和2至200克/ 10分钟的熔体流动速率。 芥酸酰胺是优选的滑爽添加剂。

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