12-04-2018 дата публикации
Номер: US20180098589A1
Принадлежит:
A multi-layer composite structure is conformable to the contours of the body parts for which protection is required. The composition structure contains a rigid shock-deflecting outer layer, two semi-rigid shock-damping and shock-dissipating middle layers, and a pliable shock-absorbing lower layer. In one embodiment, the structure is designed for impacts associated with contact sports, such as football, hockey and lacrosse. In another embodiment, the structure is designed for military/police applications, in which impacts can be blunt forces, from weapons such as clubs, or penetrative forces, from knives, bullets or shrapnel. 1. A protective garment comprising:multiple interconnected impact resistant structures, wherein each impact resistant structure comprises four interconnected layers, consisting of a rigid outer shock-deflecting layer, overlaying a semi-rigid, deformable, polymer-based, microlattice shock-damping layer, overlaying a semi-rigid, polyurethane, honeycomb lattice dissipative layer, overlaying a shock-absorbing lower fabric layer.2. The protective garment according to claim 1 , wherein the microlattice shock-damping layer comprises a three-dimensional network of multiple hollow polymer nanotubes claim 1 , having tube diameters less than 1 mm claim 1 , and wherein the polymer nanotubes are interconnected at multiple nanotube nodes which undergo resilient deformation under an applied stress claim 1 , thereby effecting a damping of the applied stress.3. The protective garment according to claim 2 , wherein the honeycomb lattice dissipative layer comprises multiple thermoplastic polyurethane open polygonal cells claim 2 , less than 0.5 inches in diameter claim 2 , having cell walls that are fused together without interstitial voids claim 2 , and wherein the transmission of the applied stress through the open polygonal cells dissipates the applied stress claim 2 , and wherein the honeycomb lattice dissipative layer constrains the microlattice shock-damping ...
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