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US 4,623,574 AGranted
Ballistic-resistant composite article
AssigneeAllied Corporation
InventorsGary A. Harpell, Sheldon Kavesh, Igor Palley, Dusan C. Prevorsek
Life of this patent
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Abstract
The present invention provides an improved, ballistic-resistant composite article of manufacture which comprises a network of high strength fibers having a tensile modulus of at least about 500 grams/denier and an energy-to-break of at least about 22 Joules/gram. 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.
Claims31
A ballistic-resistant composite article of manufacture, comprising:
- (a) a network of fibers having a tensile modulus of at least about 500 g/denier and an energy-to-break of at least about 22 J/g;
- and
- (b) a matrix consisting essentially of an elastomer, which substantially coats each of the individual fibers of said network and has a tensile modulus (measured at 25.degree. C.) of less than about 6,000 psi (41,300 kPa), said composite being capable of absorbing the energy of a projectile.
Dependencies are inferred from the claim text.