Lightweight armor and methods of making
First Claim
1. An article of armor, comprising a polymerized mixture of:
- 5 to 30 percent by weight of a resin binder agent, the resin binder agent including powdered phenolic resin;
10 to 50 percent by weight of fibers having a length of 0.5 inches or less, the fibers including glass fibers;
0.5 to 40 percent by weight of a friction modifier, the friction modifier including rubber particles, cashew friction particles, graphite, and petroleum coke;
10 to 40 percent by weight of a filler, the filler including barytes, steel fibers, carbon black, and brass chips;
wherein the resin binder agent forms a polymer matrix binding together the fibers, the friction modifier and the filler so that the fibers have a discontinuous, random orientation in the polymer matrix; and
the polymerized mixture has a density of 1.85-2.5 g/cm3.
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Accused Products
Abstract
An article of armor includes a friction material operative to prevent penetration of a ballistic projectile. The armor is also operative to prevent penetration of a plurality of ballistic projectiles at a single point of impact. The armor may include a backing, or a facing, or may comprise an intermediate layer between a backing and facing in any combination. The armor of the invention applied directly to or attached to an article to be armored so as to cover all or any portion of the article. The backing and facing may include a friction material or a non-friction material. The friction material is a composite of a resin binder agent, a fibrous support structure, a friction modifier system, and a wear system.
348 Citations
28 Claims
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1. An article of armor, comprising a polymerized mixture of:
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5 to 30 percent by weight of a resin binder agent, the resin binder agent including powdered phenolic resin; 10 to 50 percent by weight of fibers having a length of 0.5 inches or less, the fibers including glass fibers; 0.5 to 40 percent by weight of a friction modifier, the friction modifier including rubber particles, cashew friction particles, graphite, and petroleum coke; 10 to 40 percent by weight of a filler, the filler including barytes, steel fibers, carbon black, and brass chips; wherein the resin binder agent forms a polymer matrix binding together the fibers, the friction modifier and the filler so that the fibers have a discontinuous, random orientation in the polymer matrix; and
the polymerized mixture has a density of 1.85-2.5 g/cm3. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An article of armor, comprising a polymerized mixture of:
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5 to 30 percent by weight of a resin binder agent, the resin binder agent including powdered phenolic resin; 10 to 50 percent by weight of fibers having a length of 0.5 inches or less, the fibers including glass fibers; 0.5 to 40 percent by weight of a friction modifier, the friction modifier including rubber particles and cashew friction particles; 10 to 40 percent by weight of a filler, the filler including calcium carbonate, barytes, and carbon black; wherein the resin binder agent forms a polymer matrix binding together the fibers, the friction modifier and the filler so that the fibers have a discontinuous, random orientation in the polymer matrix; and
the polymerized mixture has a density of 1.85-2.5 g/cm3. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification