Complex composite article having improved impact resistance

Details Complex composite article having improved impact resistance Complex composite article having improved impact resistance

B - Operations, Transporting

32

B

154/136, 89/49

B32B 5/12 (2006.01) C08J 5/24 (2006.01) F41H 5/04 (2006.01)

Patent

CA 1240604

ABSTRACT The present invention provides an improved, complex composite article of manufacture which comprises a net- work 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 material sub- stantially coats each of the individual fibers, and has a tensile modulus of less than about 6,000 psi, measured at 25°C. The coated fibers are provided with at least one additional rigid layer on a major surface of the coated fibers 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 plate or helmets.

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