Abstract: The present invention relates to multiple threat penetration resistant articles. The articles include, in order, fabric layers, polymer impregnated fabric layers, and woven fabric layers. The articles can additionally include tightly woven fabric layers which define the strike face of the article.

Abstract: The present invention relates generally to the field of ballistic resistant composite materials that are made of a plurality of monolayers of ballistic resistant polymer fibers. More particularly, this invention relates to composite materials having improved antiballistic protection and that include at least two distinct types of polymeric fibers, and preferably including poly-(p-phenylenebenzobisoxazole), aramid or polyethylene fibers. The invention also is directed to various methods of making these ballistic resistant materials and to body armor containing the same.

Abstract: The present invention relates to an energy absorbent medium which is compliant and conformable in the absence of an applied force, and stiffens in response to the rate of an applied force to dissipate energy. The medium comprises a blend of a polymer and a lubricant incompatible with the polymer to produce a conformable absorbent which exhibits dilatant (shear thickening) characteristics under high rates of force or stress. The polymer has reformable sacrificial chemical bonds which are broken under a high rate of deformation and which reform under static conditions. Suitable polymers for the invention include polyborosiloxanes. Applications for the medium include absorbent for sports padding, athletic equipment, motor vehicle seats, bulletproof vests, medical equipment, industrial equipment, weaponry, and playing fields.

Abstract: A protective fabric includes a plurality of warp yarns interwoven with a plurality of fill yarns. The denier of each of the warp and fill yarns is less than 500. The yarns are made from at least one of liquid crystal polyesters, para-aramids, and high density polyethylenes.

Abstract: The invention relates to a fabric having both stab resistant and anti-ballistic properties. The fabric is made of yarn of a weight greater than about 500 dtex, and the fabric has a minimum shrinkage factor of at least about 1% achieved through a densification treatment. The invention further relates to a method of producing a such a fabric having the steps of agitating a fabric made of a yarn of a weight greater than about 500 dtex, substantially removing a spin finish from the fabric before, during or after the agitating step, and drying the fabric.

Abstract: Protective clothing for protection against puncture injuries is constructed from more than one layer of a fabric coated with hard solids. The hard solids are applied in accordance with abrasives technology. This protective clothing offers equally good protection against both knife- and needle-like puncture implements. For clothing intended to protect against puncture and projectile injuries, a package of 2-20 layers of a fabric coated with hard solids is combined with a package of 6-50 layers of an uncoated aramid woven fabric.

Abstract: Ballistic-resistant articles comprise a plurality of polybenzoxazole or polybenzothiazole polymer fibers and are lighter, more comfortable to wear and exhibit better ballistic-resistant properties than existing ballistic-resistant articles of equal weight.

Abstract: An impact resistant rigid composite has a plurality of fibrous layers, each of which comprise a network of filaments. The fibrous layers are disposed in a matrix, with elastomeric layer(s) therebetween. Prior to curing of the matrix, successive fibrous layers exhibit therebetween a peel resistance of at least about 3 g/cm. The composite has high rigidity combined with superior ballistic properties. When bonded at one or both surfaces to a hard plate selected from the group consisting of metals and ceramics, the composite affords increased protection against armor piercing projectiles.

Abstract: Woven fabric laminates having superior resistance to penetration by ballistic projectiles, assemblies thereof, and the method by which they are made. In one embodiment, among others, a laminate of the invention is comprised of a fabric woven from a high strength, high modulus yarn, a surface coating of a low modulus elastomer and a plastic film bonded to its elastomer-coated surface.

Abstract: The invention relates to a stab-resisting material, which material consists of a carrier coated with solid particles, which is provided on a packet of fabrics, wherein the coating on said carrier consists of abrasive particles having a diameter of 0.1-3 mm, and wherein the packet of fabrics is thicker than 1.5 mm. The invention also relates to the coated carrier, wherein the abrasive particles have been provided on the carrier by means of an adhesive, which forms an elastic film after curing. In particular a fabric made of Aramid or Nylon fibres may be used as the carrier material. The preferred adhesive is a bituminous adhesive or an adhesive with a base of polyurethane. This material is used in particular in protective clothing.

Abstract: Fibrous monolith composites having architectures that provide increased flaw insensitivity, improved hardness, wear resistance and damage tolerance and methods of manufacture thereof are provided for use in dynamic environments to mitigate impact damage and increase wear resistance.

Abstract: The invention pertains to a penetration-resistant material having at least a double layer of fabric composed of two layers of woven fabric which are cross-plied at an angle, characterized in that the fabric is composed of a first set of threads having 3.5 to 20 threads/cm and having a linear density of at least 420 dtex, and a second set of threads having 0.5 to 8 threads/cm and having a linear density of at least 50 dtex, with the second set of threads being transverse to the first set of threads, and wherein the ratio of the linear density of the first set of threads to the linear density of the second set of threads is >4.2, more preferably >7.5. In a preferred embodiment, the first set of threads is warp threads made of p-aramid yarn and the second set of threads is weft threads of polyester yarn, and the ratio of the number of threads/cm of the first set to that of the second set is >1.

Abstract: The present invention relates to multiple threat penetration resistant articles. The articles include, in order, fabric layers, polymer impregnated fabric layers, and woven fabric layers. The articles can additionally include tightly woven fabric layers which define the strike face of the article.

Abstract: A stab-resisting material includes a carrier coated with solid particles, which is provided on a packet of fabrics, in which the coating on the carrier includes abrasive particles having a diameter of 0.1-3 mm, and in which the packet of fabrics is thicker than 1.5 mm. The abrasive particles may be provided on the carrier by an adhesive, which forms an elastic film after curing. In particular, a fabric made of Aramid or Nylon fibres may be used as the carrier material. The preferred adhesive is a bituminous adhesive or an adhesive with a base of polyurethane. This material is used in particular in protective clothing.

Abstract: A laminated fabric for penetration resistant e.g. ballistic applications. The fabric comprising a fabric of penetration resistant yarns having a linear density in the range from 100 to 700 dtex, said yarns being woven in a satin weave. The woven fabric is coated on at least one-side with a polymeric material in a micro-lamination process, the coating material being from 0.

Abstract: This invention provides multi-layered composites, laminates and composite joints in which at least one resin-impregnated, fiber-containing layer is joined or laminated to a core layer having a lower flexural modulus or higher elongation at break, higher toughness, or a combination of all or some of these properties. The multi-layer composite produced by laminating or joining these materials together has improved shearout, impact and cutting resistance, since stresses caused by outside forces can be more widely distributed throughout the composite.

Abstract: A protective material comprises in one embodiment a plurality of separate flexible layers, each layer including a plurality of high-strength fibers capable of resisting penetration by a knife or sharp-pointed objects, such as ice picks and hypodermic needles, and a support material, wherein at least part of the fibers are embedded within the support material to restrict relative movement of the fibers therein. The high-strength fibers have a denier of less than or equal to 600.

Abstract: A laminated bullet resistant glazing comprises a plurality of glass and plastic plies arranged in at least two layers including an outer layer and an inner layer. The outer layer extends beyond the inner layer so as to form a step which extends around at least part of the periphery of the glazing. The glazing is reinforced with a band positioned at least partially on the step and having at least first and second longitudinal faces, and in position the first longitudinal face is in contact with the step and the second longitudinal face is in contact with an adjacent portion of the glazing. Application of the band to the step enhances the support strength of the outer layer and enables the manufacture of a bullet resistant glazing having an outer layer reduced in thickness compared to prior bullet resistant glazings.

Abstract: A sheet of unidirectionally-oriented fiber strands includes unidirectional fibers, bonding fibers interwoven with the unidirectional fibers to form a fiber panel, and thermoplastic film laminating the fiber panel there between. In one embodiment, a second sheet of laminated unidirectional fibers is joined to the first sheet of laminated unidirectional fibers with the unidirectional fibers running in a second direction as compared to the first fibers. In yet another embodiment, individual laminated sheets of unidirectional fibers are stitched together to form packets of sheets which may be used singularly or multiple packets may be bundled together.

Abstract: A layered composite is disclosed having improved resistance to penetration by knives and knife blades. The layers of fabric in the composite are woven with low fabric tightness; and, are arranged in the composite free to move relative to one another.

Abstract: A ballistic fabric having unidirectional ballistic resistant yarns in at least two layers. The layers are at 90°±5° with respect to each other. The ballistic resistant yarns are stabilized by being woven in a second fabric formed of yarns having a substantially lower tenacity and tensile modulus than the ballistic resistant yarns.

Abstract: A multi-layer protective glove fabric comprises a base cloth layer, a second stretchable cloth layer overlying the base layer, a third latex layer coated on the base layer and a fourth wax layer over the third latex layer to prevent the latex coating layer from blooming. The method of manufacturing a protective glove with this multi-layer construction includes (1) heating a fabric layer at a first elevated temperature; (2) applying a viscous latex spreading compound over a surface of the fabric layer at a second, lower elevated temperature, to prevent the latex from penetrating the fabric layer but ensuring its adhesion to the fabric layer; (3) applying wax over the latex at least at the first elevated temperature, to prevent the latex from blooming; (4) adhering an opposed surface of the fabric layer to a second fabric layer to form the multi-layer fabric and (5) forming the multi-layer fabric into a glove.

Abstract: A fabric includes a fabric substrate and a plurality guard plate assemblies affixed to the fabric substrate in a spaced relationship to each other. Each guard plate assembly includes a first layer of material affixed to the fabric substrate and a second layer of material joined to the first layer of material on a surface opposite the fabric substrate. The second layer of material has characteristics different than the first layer of material and are chosen commonly to meet the demands of the application to which the fabric is designed.

Abstract: A puncture resistant footwear sole composite is disclosed with a plurality of layers of woven aramid yarn fabric combined with a matrix resin in an amount adequate to adhere adjacent fabric layers together but not so much that the composite is saturated by matrix resin.

Abstract: An embodiment of the present invention described and shown in the specification and drawings is a ballistic resistant article including at least one layer of hard armor and at least one layer of fibrous armor composite. Each fibrous armor composite layer includes two or more layers of a fibrous ply, each fibrous ply having a plurality of unidirectional oriented fibers. When the layers of plies are aligned to form the composite, the fibers in adjacent fibrous plies are arranged at an acute angle to each other. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 C.F.R. § 1.72(b).

Abstract: A safety pouch for high pressure gas cylinders includes an envelope of gas permeable ballistic fabric defining a cavity between walls of the envelope. The walls of the envelope are fastened together by discrete fasteners so as to form a gas escape passageway between the walls and the discrete fasteners. Thus gas escaping from a ruptured high pressure gas container mounted in the cavity passes along the passageway, so as to exit the envelope from between ends of the walls, and through the ballistic fabric of the walls.

Abstract: A protective armor construction which reduces blunt action trauma and provides excellent penetration resistance, includes multiple layers arranged in serial relation between the front and back. These layers include a first plurality of layers of a penetration resistant material fabricated of high strength, e.g., aramid, fibers. These layers are secured together at the peripheral edge, e.g., by sewing, and are backed by a first plurality of backing layers of a thermoplastic polyester extrudable in sheet form, such as polyethyleneterephalate. Next is a further plurality of layers of a penetration resistant material fabricated of high strength fibers. These layers are disposed in serially contacting, unsecured relation so that the layers can individually flex and expand in response to bullet impact. These layers are backed by a further plurality of layers of an extrudable thermoplastic material.

Abstract: A ballistic resistant fabric formed by placing a polymer film on the fibers of a high tenacity fiber fabric which has a coefficient of friction higher than the coefficient of friction of the high tenacity fibers.

Abstract: A composite is disclosed which is resistant to knife and ice pick stab penetration and is made from a plurality of layers of woven polybenzoxazole or polybenzothiazole fibers, a plurality of ballistic layers, and a plurality of tightly-woven penetration resistant layers.

Abstract: A composite is disclosed which is resistant to knife stab penetration and is made from at least one layer of woven polybenzoxazole or polybenzothiazole fibers and at least one layer of a fiber network of another polymer.

Abstract: A composite woven fabric made up of at least two plies of individual woven fabrics bonded together by a layer of flexible bonding resin disposed on juxtaposed surfaces of the individual woven fabrics. The bonding agent covers at least about 75%, preferably 100%, of the juxtaposed individual fabric surfaces and does not exude through the interstices of the woven fabric. The thus constituted fabric material is very good for use in making an anti-ballistic composite fabric. An anti-ballistic composite fabric is made up of at least one of these bonded woven fabrics sub-composites, preferably in combination with conventional non-woven fabric layers. This composite product has an exceptionally low areal density but still can withstand the impact of a 44 magnum projectile. It also offers excellent protection against knife and ice pick threats.

Abstract: A three-dimensional knit spacer fabric for use in ballistic protective garments is provided. The fabric includes a first fabric layer made from high performance, high tenacity yarns; a second fabric layer of an open mesh construction to facilitate air circulation; and a plurality of high performance monofilament yarns interconnecting the two layers.

Abstract: A blast protecting panel for interior portions of building windows includes a blast-shielding panel of a high tensile fiber woven in an open weave fabric in such a manner whereby a high degree of light is transmitted through the fabric while still allowing see-through visibility. The fabric is mounted using a retention system, which can be either fixed or dynamic, allowing the fabric to unwind and billow out into the building, retaining flying glass and debris. The retention system preferably includes fixed upper and dynamic lower tension retainers around which a length of fabric is wound and which allows the fabric to unwind therefrom without becoming detached from the retainer case or from the surface to which the retainers are mounted.

Abstract: Protective clothing comprising one protective layer or a plurality of protective layers superimposed on and optionally joined to one another may contain textile flat structures made from antiballistically acting fibers, wherein the protective layers contain contoured shapes for fitting to body shapes imparted by a molding process that is conducted without the concurrent use of a resin. The protective clothing may also contain one or more cover layers. Bulges are formed in the protective layer and optionally the cover layers by the molding process in order to produce a better fit, particularly in the bust region. Protective clothing manufactured in this way offers an agreeable degree of comfort and is particularly intended for female police, military and other security personnel.

Abstract: The invention relates to a penetration-resistant composition comprising at least one layer in which fibers having a tenacity of at least 900 MPa (7 g/denier) according to ASTM D-885 are present and which layer is bonded to a polymeric continuum having a flexural modulus of 42 to 1,000 MPa according to ASTM D-790, a tensile strength at break of at least 10 MPa according to ASTM D-638 and an elongation to break of at least 100% according to ASTM D-638.The invention furthermore relates to armour comprising multiple layers of such a composition and to a process for manufacturing such a composition.

Abstract: A multi-layer composite consisting of a chemical barrier layer of, a flame resistant layer, and a reflective layer. The chemical barrier layer is itself a composite material having multiple substrates selected to minimize permeability.

Abstract: A fabric (144) for use as a stab-resistant insert in protective textiles comprises a plurality of steel cords (100). Each of the steel cords (100) comprises a longitudinal axis (102) and two or more steel filaments (104). Each of the steel filaments (104) forme a twisting angle .alpha. with the longitudinal axis (102) of the steel cord (100). The steel cords (100) have two or more of such twisting angles which are substantially different from each other so that any penetrating stab or knife is stopped.

Abstract: Material for antiballistic protective clothing comprising in a single-layer or multi-layer package or laminate at least one layer of a flat structure containing an organic dilatancy agent This flat structure is particularly suited for a trauma package in an antiballistic package. The flat structure with a dilatancy agent results in a significant improvement in the antiballistic effect and, in particular, a reduction in the trauma effect. The material finds special application for bullet-proof and splinter-proof vests and correspondingly for helmets. Moreover, the material of the invention can be used in clothing protecting against impact.

Abstract: A ballistic composite laminate exemplified by a panel incorporating resin impregnated, heat and pressure bonded, fabric layers of high tensile strength "S" glass roving filaments on its backside extending through approximately one-half its thickness with the remainder of its thickness on the face side of the laminate formed of appreciably lower cost fabric layers of "E" glass filaments, which meet acceptance according to military ballistic acceptance tests substantially matching higher cost panels reinforced with fabrics of 100% "S" glass filaments.

Abstract: A ballistic-resistant article comprising a composite panel having a plurality of layers of ballistic-resistant cloth woven from high tensile-strength fibers laminated together by an elastomeric adhesive material having oriented polymer chains. The resulting article is less than half the thickness of comparable threat level articles, is lighter than comparable threat level articles, and is buoyant.

Abstract: Two-stage process for plasma treatment of antiballistically effective materials such as aromatic polyamides. The first stage includes a plasma treatment with at least 50% inorganic gas or a mixture of inorganic gases, and the second phase includes a plasma treatment with a hydrophobically acting organic gas or mixtures of such gases from the group of saturated hydrocarbons, unsaturated hydrocarbons, saturated fluorocarbons, unsaturated fluorocarbons, siloxanes, or vinyl compounds. In the second stage, a mixture of one or more inorganic gases with one or more hydrophobically acting organic gases can also be used. The process improves antiballistic effectiveness.