Patent application number | Description | Published |
20080237911 | Method to apply multiple coatings to a fiber web - A method for applying multiple polymeric coatings onto a fibrous substrate. More particularly, a method for applying multiple polymeric coatings onto fibrous substrates without regard to chemical or physical incompatibilities of the polymeric coating materials. A first polymeric material is applied onto at least one fibrous substrate, and a second polymeric material is applied onto a support. The fibrous substrate and support are joined, contacting the first polymeric material with the second polymeric material, followed by separating the support from the fibrous substrate, such that at least a portion of the second polymeric material remains on the first polymeric material on the fibrous substrate. | 10-02-2008 |
20080241494 | Method to create an environmentally resistant soft armor composite - Fibrous substrates and articles that retain their superior ballistic resistance performance after exposure to liquids such as sea water and organic solvents, such as gasoline and other petroleum-based products. The fibrous substrates are coated with a multilayer polymeric coating including at least two different polymer layers wherein at least one of the layers is formed from a fluorine-containing polymer. | 10-02-2008 |
20090025111 | Flexible ballistic composites resistant to liquid pick-up method for manufacture and articles made therefrom - Flexible ballistic resistant composite material that has improved resistance to pick-up of water and other liquids, the composite material comprising a plurality of non-woven fibrous layers. The fibrous layers are formed from a network of high tenacity fibers (aramid fibers, extended chain polyethylene fibers and/or rigid rod fibers). The fibers are embedded in a matrix of a thermoplastic polyurethane resin. Preferably, at least two adjacent fiber layers are oriented in a cross-ply arrangement with respect to each other. Flexible armor, such as body vests, are provided which are formed at least in part from the flexible composite material. | 01-29-2009 |
20090053442 | Hybrid Fiber Constructions To Mitigate Creep In Composites - Hybrid fiber constructions having reduced creep tendency. More particularly, twisted, low creep yarns formed by twisting together one or more high strength polyolefin fibers and one or more low creep reinforcing fibers. | 02-26-2009 |
20090269583 | High tenacity polyolefin ropes having improved strength - A rope comprising a plurality of high tenacity polyolefin yarns aligned in a substantially uniaxial direction along the length of the rope. The rope yarns are substantially untwisted and are substantially parallel to each other. The yarns are formed from a plurality of fibers aligned in a substantially uniaxial direction along the length of the yarns, with the fibers being substantially untwisted and being substantially parallel to each other. The fibers comprise high tenacity polyolefin fibers. Adjacent yarns are connected together by contact of their respective resin surface coatings. | 10-29-2009 |
20090297816 | HIGH PERFORMANCE SAME FIBER COMPOSITE HYBRIDS BY VARYING RESIN CONTENT ONLY - Multi-panel ballistic resistant articles formed from woven and/or non-woven fibrous panels, each panel including varying quantities of a polymeric composition based on the total weight of the fibers and the polymeric composition. The hybrid structures provide excellent ballistic penetration resistance while maintaining a low weight. The ballistic resistant articles may be strategically positioned to dial in different levels of desired ballistic resistance for various applications. | 12-03-2009 |
20100015406 | Laminated felt articles - Laminated felt sheets, and assemblies thereof, having utility for impact absorption, ballistic resistance, penetration resistance per se, as well as in spall shields, structural composites and other applications. | 01-21-2010 |
20100170386 | SPACED LIGHTWEIGHT COMPOSITE ARMOR - Lightweight, ballistic resistant articles are provided. More particularly, armor structures incorporating two or more spaced apart, ballistic resistant panels, having superior impact and ballistic performance at a light weight. The panels are spaced by air or by an intermediate material. | 07-08-2010 |
20100275337 | Helmets for protection against rifle bullets - A helmet shell is formed having an outer section of fibrous layers, a middle section of fibrous layers and an inner section of fibrous layers. The outer section layers contain high tenacity abrasive fibers in a resin matrix. The middle section layers contain high strength polyolefin fibers and are in the form of woven or knitted fabrics with a resin matrix. The inner section layers contain high strength polyolefin fibers and are in the form of non-woven fabrics with a resin matrix. The helmet is lightweight and resists penetration of rifle bullets. | 11-04-2010 |
20110049753 | High molecular weight poly(alpha-olefin) solutions and articles made therefrom - A robust process for the continuous preparation of solutions of high molecular weight UHMW PO that is capable of producing strong materials at high production capacity, is conservative of capital and energy requirements, and the articles made therefrom. | 03-03-2011 |
20110143086 | ENVIRONMENTALLY RESISTANT BALLISTIC COMPOSITE BASED ON A NITRILE RUBBER BINDER - Ballistic resistant fabrics and articles that retain superior ballistic resistance performance after exposure to liquids such as sea water and organic solvents, such as gasoline and other petroleum-based products. The fabrics are formed from high performance fibers coated with a nitrile rubber binder polymer having an acrylonitrile content of from about 15 wt. % to about 50 wt. %, and are optionally coated with a binder that is a blend of a nitrile rubber and a fluorine-containing material. | 06-16-2011 |
20110192530 | COMPOSITE BALLISTIC FABRIC STRUCTURES - A multilayered composite fabric which comprises (a) a first fabric comprising non-woven unidirectionally oriented fibers in a first resin matrix, the fibers comprising high tenacity fibers, the first fabric comprising first and second surfaces; and (b) a second fabric comprising multi-directionally oriented fibers optionally in a second resin matrix, the second fabric also comprising high tenacity fibers, the second fabric having first and second surfaces, the first surface of the second fabric being bonded to the second surface of the first fabric thereby forming the composite fabric. Also described is a method of making such fabric wherein the second fabric layer is used as a support during the manufacturing process and is thereafter consolidated into a single structure with the first fabric layer. | 08-11-2011 |
20110203449 | ENVIRONMENTALLY RESISTANT BALLISTIC COMPOSITE BASED ON A FLUOROCARBON-MODIFIED MATRIX BINDER - Ballistic resistant fabrics and articles that retain their superior ballistic resistance performance after exposure to liquids such as sea water and organic solvents, such as gasoline and other petroleum-based products. The fabrics incorporate a fluorine-containing polymeric binder composition and an optional surfactant. | 08-25-2011 |
20110219943 | CROSS-PLIED COMPOSITE BALLISTIC ARTICLES - A multilayered composite fabric, the composite fabric comprising a first fabric comprising first and second non-woven unidirectionally oriented fiber layers. Each of the fiber layers is in a resin matrix and the fibers comprise high tenacity fibers. The fibers in the two fiber layers are disposed at an angle with respect to each other. The composite fabric includes a second fabric comprising multi-directionally oriented fibers optionally in a resin matrix. The second fabric also comprises high tenacity fibers. The first and second fabrics are bonded together to form the composite fabric, which has improved ballistic resistant properties. Plastic films may be adhered to one or both outer surfaces of the first fabric and can serve as the bonding agent between the two fabrics. Also described is a method of making a composite fabric. | 09-15-2011 |
20110256789 | METHOD TO APPLY MULTIPLE COATINGS TO A FIBER WEB - A method for applying multiple polymeric coatings onto a fibrous substrate. More particularly, a method for applying multiple polymeric coatings onto fibrous substrates without regard to chemical or physical incompatibilities of the polymeric coating materials. A first polymeric material is applied onto at least one fibrous substrate, and a second polymeric material is applied onto a support. The fibrous substrate and support are joined, contacting the first polymeric material with the second polymeric material, followed by separating the support from the fibrous substrate, such that at least a portion of the second polymeric material remains on the first polymeric material on the fibrous substrate. | 10-20-2011 |
20120156952 | METHOD TO CREATE AN ENVIRONMENTALLY RESISTANT SOFT ARMOR COMPOSITE - Fibrous substrates and articles that retain their superior ballistic resistance performance after exposure to liquids such as sea water and organic solvents, such as gasoline and other petroleum-based products. The fibrous substrates are coated with a multilayer polymeric coating including at least two polymer layers wherein the first polymer and the second polymer forming said respective layers are the same and optionally comprise fluorine. | 06-21-2012 |
20120167662 | METHODS TO DETERMINE THE DURABILITY AND WEAR-RESISTANCE OF SOFT ARMOR - Methods to determine the durability and wear-resistance of soft armor. Observations on field tested articles of soft body armor indicate that the materials are subject to a combination of flexing, tensile, compressive and abrasive forces. The forces and stresses to which soft armor articles are subjected to can be duplicated in a controlled, isolated, measurable, appropriate and intuitive manner, to correlate ballistic performance with durability and wear characteristics. The tests closely approximate the forces and stresses experienced in the end use of ballistic resistant composite articles. | 07-05-2012 |
20120174277 | HIGH PERFORMANCE SAME FIBER COMPOSITE HYBRIDS BY VARYING RESIN CONTENT ONLY - Multi-panel ballistic resistant articles formed from woven and/or non-woven fibrous panels, each panel including varying quantities of a polymeric composition based on the total weight of the fibers and the polymeric composition. The hybrid structures provide excellent ballistic penetration resistance while maintaining a low weight. The ballistic resistant articles may be strategically positioned to dial in different levels of desired ballistic resistance for various applications. | 07-12-2012 |
20120174753 | Soft body armor having enhanced abrasion resistance - Body armor, in particular soft body armor, which has improved properties, and in particular enhanced abrasion resistance. The soft body armor and flexible composite materials useful for such body armor include at least one woven fabric layer, at least one second fabric layer comprising high tenacity fibers having a tenacity of at least about 7 g/d, and at least one first separator layer positioned between the woven fabric layer and the second fabric layer. The first separator layer is a lightweight, thin and flexible layer having an areal density of less than or equal to about 150 g/m | 07-12-2012 |
20120175043 | METHOD TO APPLY MULTIPLE COATINGS TO A FIBER WEB - A method for applying multiple polymeric coatings onto a fibrous substrate. More particularly, a method for applying multiple polymeric coatings onto fibrous substrates without regard to chemical or physical incompatibilities of the polymeric coating materials. A first polymeric material is applied onto at least one fibrous substrate, and a second polymeric material is applied onto a support. The fibrous substrate and support are joined, contacting the first polymeric material with the second polymeric material, followed by separating the support from the fibrous substrate, such that at least a portion of the second polymeric material remains on the first polymeric material on the fibrous substrate. | 07-12-2012 |
20120192339 | Flexible Body Armor Vest with Breast Plate - Body armor vests and other articles having combined ballistic performance and overall weight characteristics are described. A representative body armor vest comprises both a rigid breast plate and a flexible fabric adjoining the breast plate. Both components may comprise a plurality of unidirectionally oriented fibrous layers comprising fibers having high tenacity and a high tensile modulus. | 08-02-2012 |
20130112071 | Flexible body armor with semi-rigid and flexible component - Multilayer ballistic resistant articles formed from a combination of flexible and semi-rigid panel components. The flexible and semi-rigid panels may include woven fibrous layers, non-woven fibrous layers or both. The articles provide suitable protection against high energy ballistic threats, while remaining suitable for flexible vest applications. | 05-09-2013 |
20130115839 | Inhibition of water penetration into ballistic materials - Ballistic resistant articles having excellent resistance to deterioration due to liquid exposure. More particularly, ballistic resistant fibrous composites and articles that retain their superior ballistic resistance performance after exposure to liquids such as sea water and organic solvents, such as gasoline and other petroleum-based products. | 05-09-2013 |
20130212763 | Protective helmets - A helmet shell formed from two types of high tenacity fibers in multiple layers of fibrous materials. The fibrous materials are in the form of layers of fibrous networks in a resin matrix. There are a plurality of each type of fibrous layers. Preferably the outer set of fibrous layers is formed from aramid fibers and the inner set of fibrous layers is formed from high tenacity polyolefin fibers. There may also be employed a third type of fibrous material as an additional set of fibers and used as the outer layers of the helmet shell. The third type of fibrous layers is formed from glass fibers that are also in a resin matrix. The helmet is lightweight, has excellent ballistic resistant properties and is useful for both military and non-military applications. | 08-22-2013 |
20140072758 | HYBRID FIBER UNIDIRECTIONAL TAPE AND COMPOSITE LAMINATES - Ballistic resistant materials and articles formed from fiber/tape plies that incorporate multiple different fiber or tape types within a single ply. The different fiber or tape types are physically dissimilar but may be chemically different or substantially chemically similar. | 03-13-2014 |
20140137726 | SPALL LINERS IN COMBINATION WITH BLAST MITIGATION MATERIALS FOR VEHICLES - Spall suppressing ballistic resistant vehicular armor. More particularly, a lightweight spall suppressing ballistic resistant vehicular armor system incorporating both a spall resistant liner and a blast mitigating material. The blast mitigating material is positioned contiguous to a vehicle hull to thereby space the spall resistant liner from the vehicle hull, thereby improving the performance of the liner and the overall system. | 05-22-2014 |
20140260933 | VACUUM PANELS USED TO DAMPEN SHOCK WAVES IN BODY ARMOR - Ballistic resistant composite articles having improved resistance to backface deformation. The composite articles incorporate one or more vacuum panels that mitigate or eliminate shock wave energy resulting from a projectile impact to minimize transient compression of materials behind the armor. | 09-18-2014 |
20150020283 | HELMETS FOR PROTECTION AGAINST RIFLE BULLETS - A helmet shell is formed having an outer section of fibrous layers, a middle section of fibrous layers and an inner section of fibrous layers. The outer section layers contain high tenacity abrasive fibers in a resin matrix. The middle section layers contain high strength polyolefin fibers and are in the form of woven or knitted fabrics with a resin matrix. The inner section layers contain high strength polyolefin fibers and are in the form of non-woven fabrics with a resin matrix. The helmet is lightweight and resists penetration of rifle bullets. | 01-22-2015 |
20150040749 | METHOD OF MAKING IMPROVED BALLISTIC PRODUCTS - A method of making a ballistic resistant composite material having improved resistance to high energy rifle bullets and the like. The method comprises providing at least one fibrous layer comprising a network of high tenacity aramid fibers. The fibrous layer is coated with a thermoplastic polyurethane resin. The coated fibrous layer is molded at a pressure of at least about 1,500 psi (10.3 MPa). Preferably, a plurality of fibrous layers are employed, each of which is formed from to unidirectionally oriented aramid fibers in a thermoplastic polyurethane resin matrix. Adjacent fibrous layers are preferably oriented at 90° with respect to each other. | 02-12-2015 |