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    • 7. 发明申请
    • HIGH PERFORMANCE BALLISTIC COMPOSITES HAVING IMPROVED FLEXIBILITY AND METHOD OF MAKING THE SAME
    • 具有改进柔韧性的高性能弹道复合材料及其制造方法
    • WO2008097355A2
    • 2008-08-14
    • PCT/US2007078012
    • 2007-09-10
    • HONEYWELL INT INCBHATNAGAR ASHOKARVIDSON BRIAN DHURST DAVID APOWERS DANELLE FSTEENKAMER DAVID A
    • BHATNAGAR ASHOKARVIDSON BRIAN DHURST DAVID APOWERS DANELLE FSTEENKAMER DAVID A
    • B29C70/202B29K2995/0089B32B5/12B32B5/26B32B5/28B32B27/02F41H5/0478F41H5/0485Y10S428/911Y10T442/2623Y10T442/643Y10T442/659Y10T442/678
    • 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.
    • 这种复合材料具有优异的弹道性能并具有改进的灵活性。 令人惊讶的是,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。 树脂基体是共轭二烯和乙烯基芳族单体的嵌段共聚物,优选苯乙烯 - 异戊二烯 - 苯乙烯嵌段共聚物,其作为含水组合物施加。 该纤维具有至少约35g / d的韧度和至少约1200g / d的拉伸模量。 对于复合材料的双层结构,复合材料具有等于或小于约100g / m 2的总密度和小于约2.5磅(1.14kg)的硬度,总面密度等于或小于约190 g / m 2,并且对于复合材料的四层结构,刚度小于约3.0磅(1.36kg)。 两层结构的剥离强度对于复合材料的双层结构小于约1.0磅(0.45kg),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理想的产品。 由复合材料制成的防弹衣具有改进的弹性和优异的弹道特性。