A method of using an anti-ballistic protection system for protecting an interior space in a building. The ballistic barrier includes a laminated material having a plurality of layers of lightweight, flexible, ballistic resistant material such as woven sheets which are secured together into the laminate using a adhesive, heat weld, or stitching. The ballistic barrier in the deployed state is configured to be resistant to penetration by high-speed ballistic projectiles such as a bullet fired from a gun or a shrapnel from a bomb to protect the interior space, and can be used to protect windows, doors, hallways, and walls from penetration by the ballistic projectiles.

A composite product substantially reduced the impact force imposed by hard impactor which travelled at the speed in the range of 400 m/s to 1400 m/s simultaneously damping the vibrations and shocks appeared therein is disclosed. At the same time it is light weight with the weight lower than that of 22 to 38 kg/m2and is flexible to adopt the shape suitable for the end applications. A method of manufacturing the composite product of the invention is also disclosed.

The invention relates to a process for producing a ballistic-resistant curved molded article said process comprising forming a stack of a plurality of composite sheets, pressing the stack comprising the composite sheets at a temperature of between 80° C. to 150° C. and a pressure of between 10 and 400 bar for at least 5 minutes to obtain a curved molded article, cooling the compacted stack to a temperature below 80° C. while maintaining the pressure above 10 bar, releasing the pressure from the cooled curved molded article; wherein the composite sheets comprise unidirectionally aligned high tenacity polyethylene fibers and a matrix comprising a polyethylene resin being a homopolymer or copolymer of ethylene having a density of between 870 to 980 kg/m.sup.3 when measured according to ISO1183 and a melt flow index of between 0.5 and 50 g/10 min when measured according to ASTM 1238B-13 at a temperature of 190° C. and a weight of 21.6 kg.

A ballistic garage door assembly and a kit for converting a standard garage door uses sheets of ballistic material secured to the exterior shell of the standard garage door panels along with inserts at the joints between adjacent garage door panels. Joint inserts applied to the horizontal ends of the garage door panels provide bullet resistant characteristics at the joints. Aluminum sheets with multiple plies of ballistic material between the aluminum sheets are applied to the entire garage door shell. Insulated foam is place on the innermost aluminum sheet to provide additional ballistic performance for the converted garage door. Increased levels of ballistic protection will utilize thicker aluminum panels and an additional external ballistic bumper to increase ballistic performance of the joints between the garage door panels. The outward aesthetic appearance of the garage door does not change appreciably, although a door lift with greater horsepower may be required.

Processes for making high-performance polyethylene multi-filament yarn are disclosed which include the steps of a) making a solution of ultra-high molar mass polyethylene in a solvent; b) spinning of the solution through a spinplate containing at least 5 spinholes into an air-gap to form fluid filaments, while applying a draw ratio DR.sub.fluid; c) cooling the fluid filaments to form solvent-containing gel filaments; d) removing at least partly the solvent from the filaments; and e) drawing the filaments in at least one step before, during and/or after said solvent removing, while applying a draw ratio DR.sub.solid of at least 4, wherein in step b) each spinhole comprises a contraction zone of specific dimension and a downstream zone of diameter Dn and length Dn with Ln/Dn of from 0 to at most 25, to result in a draw ratio DR.sub.fluid=DR.sub.sp*DR.sub.ag of at least 150, wherein DR.sub.sp is the draw ratio in the spinholes and DR.sub.ag is the draw ratio in the air-gap, with DR.sub.sp being greater than 1 and DR.sub.ag at least 1. High-performance polyethylene multifilament yarn, and semi-finished or end-use products containing said yarn, especially to ropes and ballistic-resistant composites, are also disclosed.

The present invention concerns a security barrier for providing protection in a public space or the like, said barrier comprising a mineral wool assembly comprising at least one mineral wool element having an outer liquid impermeable covering and wherein the at least one mineral wool element is adapted for being filled with a liquid. The invention further comprises a method of manufacturing such security barrier and a method of preparing the security barrier for providing protection in a public space.

A method for manufacturing armor includes coating a first side of a ballistics arresting core with a first shell layer to create a partially coated ballistics arresting core, placing the partially coated ballistics arresting core in a vacuum bag and depressurizing the vacuum bag and curing the partially coated ballistics arresting core in the depressurized vacuum bag to create a partially shelled ballistics arresting core. The method further includes removing the partially shelled ballistics arresting core from the vacuum bag, coating a second side of the partially shelled ballistics arresting core with a second shell layer to create a fully coated ballistics arresting core, placing the fully coated ballistics arresting core in a vacuum bag and depressurizing the vacuum bag, and curing the fully coated ballistics arresting core in the depressurized vacuum bag to create a fully shelled ballistics arresting core.

A method includes providing an article having an impact side and an asset side and exposing the impact side of the article to a plurality of pressure waves, the pressure waves having a plurality of pressure wave frequencies. The method also includes reflecting at least one composite harmonic of a portion of the pressure wave frequencies and reducing an amplitude of a portion of the pressure waves.

A firearm holster and a method of making the firearm holster is disclosed. The firearm is wholly or partially molded of ballistic material in such a way that a bullet that is discharged into the holster is retained within the holster or deflected so that it doesn't cause damage to the user of the firearm or other persons or property.

A reinforced armor (200) and a process for reinforcing an armor by composite layering are provided. The reinforced armor (200) includes a core structure having a strike face and a back face, a first composite fiber laminate (220) having a plurality of composite fiber plies, bonded to the strike face of the core structure, and a second composite fiber laminate (225) having a plurality of composite fiber plies, bonded to the back face of the core structure. The process for reinforcing the armor includes creating the first and second composite fiber laminates from a plurality of plies of fibrous material impregnated with a resin matrix, and bonding the first and second composite fiber laminate to both the strike face and the back face. Advantageously, the reinforced armor (200) is capable of providing protection against hazards while having a light weight compared with a rigid armor such as steel or ceramic.