Ballistic resistant body armor articles

F - Mech Eng,Light,Heat,Weapons – 41 – H

Patent

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Details

F41H 1/02 (2006.01) B32B 7/08 (2006.01) B32B 7/14 (2006.01) B32B 27/12 (2006.01)

Patent

CA 2723385

The present invention relates to body armor articles for resisting ballistic objects. The articles comprise woven fab-ric layers and sheet layers. The woven fabric layers are made from yarns having a tenacity of at least 7.3 grams per dtex and a modulus of at least 100 grams per dtex. The sheet layers comprise non-woven random oriented fibrous sheets and/or non fibrous films. The woven fabric layers and the sheet layers are stacked together comprising a first core section which includes at least two repeating units of, in order, at least one of the woven fabric layers then at least one of the sheet layers. The sheet layers comprise 0.5 to 30 wt % of the total weight of the article.

L'invention concerne des articles de protection balistique résistants aux projectiles. L'article comprend des couches de tissu et des couches de feuilles. Les couches de tissu sont constituées de fils possédant une ténacité d'au moins 7,3 grammes par dtex et un module d'élasticité d'au moins 100 grammes par dtex. Les couches de feuilles comprennent des feuilles de fibres non tissées à orientation aléatoire et/ou des films non fibreux. Les couches de tissu et les couches de feuilles sont empilées les unes sur les autres et comportent une première partie âme renfermant au moins deux motifs répétés formés, dans l'ordre, par l'une des couches de tissu au moins et par l'une des couches de feuilles au moins. Les couches de feuilles représentent de 0,5 à 30% en poids du poids total de l'article.

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