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BALLISTIC RESISTANT BODY ARMOR ARTICLES

  • US 20110203450A1
  • Filed: 05/14/2008
  • Published: 08/25/2011
  • Est. Priority Date: 05/14/2008
  • Status: Active Grant
First Claim
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1. A body armor article for resisting ballistic objects, comprising:

  • a plurality of woven fabric layers woven from yarns having a tenacity of at least 7.3 grams per dtex and a modulus of at least 100 grams per dtex;

    a plurality of sheet layers comprising non-woven random oriented fibrous sheets and/or non fibrous films, each of the sheet layers having a thickness of at least 0.013 mm;

    the woven fabric layers and the sheet layers 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;

    whereini. the sheet layers comprise 0.5 to 30 wt % of the total weight of the article.ii. each of the sheet layers has an average acoustic velocity at least 600 m/sec.iii. the sheet layers are isotropic or substantially isotropic.iv. the woven fabric layers and the sheet layers are attached together at 10% or less of their surface areas.

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