Multi-component lightweight ballistic resistant garment

F - Mech Eng,Light,Heat,Weapons – 41 – H

Patent

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Details

F41H 1/02 (2006.01) F41H 5/04 (2006.01)

Patent

CA 2347030

A ballistic resistant protective garment (10) having a ballistic resistant pad (30, 60) which has at least three panels including a first panel (62) constructed of a plurality of overlying layered sheets in which each sheet is constructed of a first type of high tensile strength woven fiber, a second panel (64) constructed of a plurality of overlying layered sheets in which each sheet is constructed of lyotropic liquid crystal polymer material, and a third panel (66) constructed of a plurality of overlying layers of composite body armor material positioned at a body side of the pad in which the first, second and third panels are in overlying relationship to one another to form the pad. The employment of the panel of layered sheets of lyotropic liquid polymer fibers introduces a synergistic effect with the ballistic resistant materials of the other panels. The synergistic effect enhances the anti- ballistic performance of the high strength material of the other panels through increased lateral energy dispersion, reduces bunching and balling of the pad in a National Institute of Justice (NIJ) laboratory test environment and further improves blunt trauma performance.

Cette invention concerne un vêtement de protection balistique muni d'un rembourrage anti-projectiles et disposant d'au moins trois pans. Le premier pan se compose de plusieurs feuilles multi-couches superposées, chaque feuille étant fabriquée en fibres tissées ayant une résistance à la traction élevée. Le deuxième pan est composé de plusieurs feuilles multi-couches superposées, chaque feuille étant faite d'une matière polymère lyotropique à cristaux liquides. Le troisième pan se compose de plusieurs couches superposées faites d'une matière composite pare-balles, situées d'un côté du rembourrage où les trois pans se superposent pour former le rembourrage. L'utilisation du pan à feuilles multi-couches en fibres de polymère lyotropique à cristaux liquides induit un effet synergétique avec les matières résistant aux projectiles des autres pans. Cet effet synergétique renforce l'efficacité anti-projectiles de la matière hautement résistante des autres pans grâce à une plus grande dispersion d'énergie latérale, réduit le groupage et l'empelotage du rembourrage dans des conditions de tests effectués en laboratoire selon normes du National Institute of Justice (NIJ) et permet une plus grande efficacité en cas de traumatisme fermé.

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