Complex composite article having improved impact resistance
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United States of America Patent
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Sep 23, 1986
Grant Date -
N/A
app pub date -
Feb 28, 1985
filing date -
Feb 28, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides an improved, complex composite article of manufacture which comprises a network of high strength fibers having a tensile modulus of at least about 160 grams/denier and a tenacity of at least about 7 g/denier. An elastomeric matrix material substantially coats each of the individual fibers, and has a tensile modulus of less than about 6,000 psi, measured at 25.degree. C. The fibers in the matrix are provided with at least one additional rigid layer on a major surface of the fibers in the matrix to produce a rigid complex composite. Composites of this construction have improved resistance to environmental hazards, improved impact resistance, and are unexpectedly effective as ballistic resistant articles such as armor or helmets.
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