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    Enhanced ballistic performance of polymer fibers
    2.
    发明授权
    Enhanced ballistic performance of polymer fibers 有权
    增强聚合物纤维的弹道性能

    公开(公告)号：US07964518B1

    公开(公告)日：2011-06-21

    申请号：US12763169

    申请日：2010-04-19

    申请人： Ashok Bhatnagar ,  Brian D. Arvidson ,  Chok Bin C. Tan ,  Lori L. Wagner

    发明人： Ashok Bhatnagar ,  Brian D. Arvidson ,  Chok Bin C. Tan ,  Lori L. Wagner

    IPC分类号： B32B27/04

    CPC分类号： B32B5/26 ,  B32B27/02 ,  B32B27/04 ,  B32B27/32 ,  Y10T442/2615

    摘要： Ballistic resistant materials having improved strength and lighter weights. More particularly, improved ballistic resistant fabrics produced from drawn, high modulus fibers having a reduced fiber diameter and improved physical strength properties, without changing other properties such as fiber chemistry, binder resin type and binder resin content. The fabrics incorporate low denier per filament monofilament fibers, low denier per filament multifilament fibers, or a combination of low denier per filament monofilament fibers and low denier per filament multifilament fibers in a specialized fabric construction to form fine fiber layers and fabrics having enhanced strength and fiber areal density without altering the fabric weight, or having reduced fabric weight without a corresponding reduction in ballistic performance.

    摘要翻译： 防弹材料具有改进的强度和较轻的重量。 更具体地说，改进的抗弹性织物是由具有纤维直径减小和物理强度特性降低的拉伸高模量纤维制成的，而不改变纤维化学，粘合剂树脂类型和粘结剂树脂含量等其它性能。 织物在专门的织物结构中结合了低旦尼尔每丝单丝纤维，低旦尼尔每丝复丝纤维或低旦尼尔每丝单丝纤维和低旦尼尔每丝复丝纤维的组合，以形成细纤维层和具有增强强度的织物， 纤维面积密度，而不改变织物重量，或者具有降低的织物重量而没有相应的弹道性能降低。

    High performance ballistic composites having improved flexibility and method of making the same
    7.
    发明申请
    High performance ballistic composites having improved flexibility and method of making the same 有权
    具有改进灵活性的高性能弹道复合材料及其制造方法

    公开(公告)号：US20080064280A1

    公开(公告)日：2008-03-13

    申请号：US11823570

    申请日：2007-06-28

    申请人： Ashok Bhatnagar ,  Brian Arvidson ,  David Hurst ,  Danelle Powers ,  David Steenkamer

    发明人： Ashok Bhatnagar ,  Brian Arvidson ,  David Hurst ,  Danelle Powers ,  David Steenkamer

    IPC分类号： B32B5/02 ,  B28B1/00

    CPC分类号： B29C70/202 ,  B29K2995/0089 ,  B32B5/12 ,  B32B5/26 ,  B32B5/28 ,  B32B27/02 ,  F41H5/0478 ,  F41H5/0485 ,  Y10S428/911 ,  Y10T442/2623 ,  Y10T442/643 ,  Y10T442/659 ,  Y10T442/678

    摘要： A composite material which has excellent ballistic performance and has improved flexibility. Surprisingly, it has been found that a combination of poly(alpha-olefin) fiber and matrix resin provides these desirable product features. The resin matrix is a block copolymer of a conjugated diene and a vinyl aromatic monomer, preferably a styrene-isoprene-styrene block copolymer, that is applied as an aqueous composition. The fiber has a tenacity of at least about 35 g/d and a tensile modulus of at least about 1200 g/d. The composite has a total density equal to or less than about 100 g/m2 and a stiffness of less than about 2.5 pounds (1.14 kg) for a two layer structure of the composite, and a total areal density equal to or less than about 190 g/m2 and a stiffness of less than about 3.0 pounds (1.36 kg) for a four layer structure of the composite. The Peel Strength for a two layer structure of less than about 1.0 pounds (0.45 kg) for a two layer structure of the composite, and less than about 0.7 pounds (0.32 kg) for a four layer structure of the composite. The process of this invention permits fabrication of these desirable products in a cost-effective manner. Body armor made from the composite has improved flexibility and excellent ballistic characteristics.

    摘要翻译： 具有优良弹道性能，弹性好的复合材料。 令人惊奇的是，已经发现聚（α-烯烃）纤维和基质树脂的组合提供了这些所需的产品特征。 树脂基质是作为水性组合物施用的共轭二烯和乙烯基芳族单体，优选苯乙烯 - 异戊二烯 - 苯乙烯嵌段共聚物的嵌段共聚物。 纤维的强度为至少约35g / d，拉伸模量为至少约1200g / d。 复合材料具有等于或小于约100g / m 2的总密度，对于复合材料的两层结构的刚度小于约2.5磅（1.14kg），并且总面积 密度等于或小于约190g / m 2，对于复合材料的四层结构，刚度小于约3.0磅（1.36kg）。 对于复合材料的两层结构，小于约1.0磅（0.45kg）的双层结构的剥离强度，并且对于复合材料的四层结构小于约0.7磅（0.32kg）。 本发明的方法允许以成本有效的方式制造这些所需产品。 由复合材料制成的护甲具有改进的弹性和优异的弹道特性。