Patent ID: 8015617

Claim:
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; wherein i. 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.