A hard body armor system consisting of a boron carbide strike surface; aramid fiber layers; polyethylene fiber layers; two metallic foil layers with no binder between them; and a rigid foam layer; with carbon fiber layers on both surfaces. The metallic foil layers delaminate upon impact of a projectile,...http://www.google.es/patents/US5306557?utm_source=gb-gplus-sharePatente US5306557 - Composite tactical hard body armor
