Abstract: The present invention relates to a fiber having starch and a surfactant, and a web employing such a fiber.

Abstract: A composite leg for a landing gear assembly includes a composite compression cap including reinforcing fibers that provide strength in compression, and a tension cap including reinforcing fibers that provide strength in tension. The composite leg further includes a torque box including carbon reinforcing fibers for providing torsional rigidity of the leg and carrying shear flow between the caps. The carbon fibers in the torque box are oriented at +? and ?? with respect to a longitudinal axis of the leg, where ? is between 35 and 55 degrees.

Abstract: The invention relates to a stack comprising a stack of first and second layers. The first layers comprise drawn polymeric fibers and optionally a binder, and the second layers comprise drawn polymeric tapes. The invention also relates to a panel comprising a consolidated stack and to a ballistic resistant article comprising the stack or the panel.

Abstract: A contoured composite structure includes an axis of curvature and at least one curved leg. The structure is fabricated by laying up a flat stack of prepreg fiber plies each having non-zero degree fiber orientations relative to an axis of curvature, and laying up at least one prepreg fiber ply on the stack having a zero degree fiber orientation. Laying up the zero degree ply includes placing prepreg tows in segments arranged end-to-end on at least a portion of the stack. The stack is formed into a web and a curved leg.

Abstract: A composite material comprising the following components: (a) a first prepreg material with improved resistance to microbuckling and kinkband formation; and (b) a second prepreg material with improved resistance to delamination.

Abstract: One example embodiment includes a tilewave material. The tilewave material includes a fiber and a first tile, where the first tile includes a first surface and a second surface. The tilewave material also includes a second tile, where the second tile includes a first surface and a second surface. The tilewave material further includes a first attachment means, where the first attachment means attaches the first tile to the fiber, and a second attachment means, where the second attachment means attaches the second tile to the first fiber.

Abstract: A manufacturing method of composite material member includes a step of shaping a laminate including laminated prepreg sheets along a mold. The laminate includes a first layer in which fibers are oriented in single direction. In the first layer, a first surface crossing the single direction and a second surface crossing the single direction are confronted each other such that the first surface and the second surface face each other. Since the fibers are discontinuous between the first surface and the second surface, the laminate is easily shaped and wrinkles are hard to be generated in a composite material member to be manufactured from the laminate.

Abstract: A method of producing a panel having at least one feature comprising a discontinuation in curvature of surface in the surface, the method comprising the steps of: providing a first reinforced layer of long and/or continuous parallel fibre reinforced thermoplastic of a first polymer (102a, 104a); providing a core layer of thermoplastic with at least roughly 70% by volume of a second polymer which is compatible with the first polymer (106); providing a second reinforced layer of long or continuous parallel fibre reinforced thermoplastic of the first polymer (102b, 104b); stacking the layers such that the reinforced layers are separated by the core layer; introducing the stack into a panel mould and heating the mould to at least the melting point of the predetermined polymer to consolidate the layers and form the panel.

Abstract: Methods for fabricating sublithographic, nanoscale microstructures in one-dimensional arrays utilizing self-assembling block copolymers, and films and devices formed from these methods are provided.

Abstract: A method for making a window frame for installation in the exterior shell of an aircraft, which comprises at least one outer flange, an inner flange, and a vertical flange arranged perpendicular to and between these two flanges, contemplates that first a semifinished part comprising multiple, individual substructures is made, which next is inserted into a molding tool, into which, under pressure and temperature, resin is injected, and that the component made in this manner subsequently is hardened in the molding tool. The semifinished part has a layer structure, which comprises a web material, fiber bundles, or a combination of fiber bundles and web material.

Abstract: The present disclosure describes use of filamentous algae to form insulating construction materials which provide thermal and noise insulation. Algae from the order Zygnematales, the Cladophorales, or the Ulotrichales can be dried and formed for use as insulating material. Algae mass can be combined into several layers, using a binder to attach the layers to each other. A composite material of algae mass and an additive can be used and form the body of insulation panels having honeycomb-shaped chambers, which are sealed by a foil that is laminated onto the body. Various plants for cultivating algae for use in construction material are disclosed. Plants utilizing gravity harvest comprise cultivation ponds located at a slope, wherein the ponds can be opened to allow algae and water to flow downhill through a collector grill. Plants utilizing net harvest, overflow harvest or rake harvest are described.

Abstract: The invention relates to a composite structural member with fiber reinforcement and its application in the production of a wing box for aircraft. More specifically, it relates to a composite structural member (230) with fiber reinforcement comprising a plurality of layers oriented relative to a longitudinal direction (2) of said member in directions including 0°, 90° and +/??, the relative proportion of layers in one of these orientations being variable along a transverse direction (3) of said member so as to spatially adjust the rigidity of the member according to a defined distribution of mechanical stresses along this transverse axis (3). Thus the rigidity of the member is adapted locally to the stress system so as to dissipate the force flux over the entire volume of said member.

Abstract: The invention relates to a method for producing a fibre layer with a longitudinal direction, wherein the method is based on the fact that fibre bundles having the same or a different fibre fineness which are guided in parallel are guided together in an overspread, overlapping manner and as a result are mechanically strengthened, wherein at least one sliver is obtained as a unidirectional layer with a defined width without additional fixing agent and/or additional mechanical or physical fixing methods.

Abstract: A process for producing a reinforcing-fiber strip substrate having a circular-arc part includes contacting one surface of a strip-shaped, unidirectional reinforcing-fiber substrate formed by arranging a plurality of reinforcing-fiber strands in one direction in parallel with each other with a flexible member; deforming the unidirectional reinforcing-fiber substrate into a circular-arc shape by deforming at least a part of the flexible member into a circular-arc shape in a direction extending along its contact surface with the unidirectional reinforcing-fiber substrate; and thereafter, separating the flexible member from the unidirectional reinforcing-fiber substrate having been deformed.

Abstract: A stab and ballistic resistant material, comprising a stab-resistant layer and a ballistic resistant layer, wherein the stab-resistant layer comprises at least one layer, wherein each layer is constituted of two units, each of which is formed from perpendicularly combined high strength and high module unidirectional fiber prepreg strips, adjacent units are combined with rotated 45°, and the stab-resistant layer has membranes adhered to both sides; the ballistic resistant layer comprises at least one layer, wherein each layer is constituted of two units, each of which is formed from perpendicularly combined unidirectional fiber prepreg strips, adjacent units are combined with rotated 90°, and the ballistic resistant layer has membranes adhered to both sides. The invention also provides a method for preparing the above stab and ballistic resistant material.

Abstract: This invention is a novel system for blast protection. It consists of lightweight, sectional or continuous barriers made of a novel blast resistant fiber reinforced polymer resin matrix composite, which may be fabricated on site. The barriers are lightweight and thin enough that they may be used in many spaces where barriers made from conventional construction materials are impossible, impractical, or undesirable. The novel barriers of this invention have the additional advantage of allowing for aesthetically appealing and architecturally harmonious designs. In order to minimize weight, the barriers may be designed such that the cross section varies with height, providing adequate resistance in areas of high blast loading, but allowing for thinner cross sections in regions of lowering load.

Abstract: A composite material, useful in producing wood-based materials, comprises (a) at least one cellulose- or lignocellulose-containing material and (b) at least one aminoalkylsilane, or at least one cocondensate of the at least one aminoalkylsilane and at least one further functional silane, or an aqueous solution which contains the at least one aminoalkylsilane or the at least one cocondensate of the at least one aminoalkylsilane and the at least one further functional silane.

Abstract: A system for forming a cross-directional fiber reinforcement layer has a feeder for feeding an array of continuous fiber and a chopped fiber dispenser for distributing generally aligned, closely spaced chopped fibers onto the array of continuous fibers in a cross-directional manner.

Abstract: Fibrous structures that exhibit a Geometric Mean Elongation of greater than 15.8% as measured according to the Elongation Test Method are provided.

Abstract: A fiber-reinforced, organic matrix, composite structural member includes a plurality of layers of fiber-reinforced, organic matrix, composite material in which adjacent layers are bonded to one another, wherein the structural member exhibits a non-linear stress-strain response when mechanically loaded to failure. A helicopter landing gear includes a pair of skids and one or more cross members extending between the pair of skids. The one or more cross members includes a plurality of layers of fiber-reinforced, organic matrix, composite material in which adjacent layers are bonded to one another, wherein the cross members exhibit non-linear stress-strain responses when mechanically loaded to failure.

Abstract: Reinforcement structures and processes for forming same are provided, wherein the reinforcement structures are adapted for use in forming composite parts. The structures comprise a first reinforcement layer; a second reinforcement layer; and a flexible core layer comprising elongated fibers and a plurality of discrete bodies.

Abstract: A process for continuous, tailored lamination of aligned composite materials in such a way that either pre-formed or pre-consolidated sheets are made available for subsequent infusion molding or stamping processes, the process comprising the steps of: material placement, consolidation/stabilization, cut and kit, fabrication, and final trim. A tailored blank machine is also described. The blank machine includes a series of material placement heads arranged in a linear or serial fashion along a single moving placement table, wherein each head lays down a single angle of the prescribed stacking sequence as the conveyer passes under the head at a constant speed wherein the angle is proportional to head traverse rate divided by conveyer speed.

Abstract: An advanced grid structure has high strength and low thermal expansion, and includes first, second, and third tape prepreg groups each including a plurality of tape prepregs. Each tape prepreg includes carbon fibers that are aligned in a first, second, or third direction and that form respective first, second, and third grid sides. A plurality of each the first, second, and third grid sides are spaced apart at equal intervals in the respective first, second, or third direction to form respective first, second, and third grid side groups. A structure ratio of the advanced grid structure is larger than 0 and 0.107 or less, 0.053 or less, or 0.040 or less. A thermal expansion coefficient of the advanced grid structure is ?0.9 ppm/K or more and 0.9 ppm/K or less. The carbon fibers have a tensile modulus of elasticity of 280 GPa or more and 330 GPa or less.

Abstract: A building board, in particular a flooring panel, with a core comprising at least one upper layer and one lower layer of wood fibers or wood chips glued with an adhesive and pressed to one another, which is provided on at least its top side with a pattern that is covered with a sealing coat and in which sealing coat a structure corresponding to the pattern is embossed, is characterized in that at least the chips of the upper layer are glued with an adhesive having thermoplastic properties, and the upper layer has recesses formed at least directly beneath the pattern.

Abstract: Fibrous structures that exhibit a Dry Burst of greater than 360 g as measured according to the Dry Burst Test Method and optionally, a Total Dry Tensile of less than 2450 g/76.2 mm and/or a Machine Direction (MD) Dry Tensile of less than 1520 g/76.2 mm and/or a Geometric Mean (GM) Total Dry Tensile of less than 1180 g/76.2 mm as measured according to the Tensile Strength Test Method are provided.

Abstract: Semi-preg material is disclosed adapted for use in composite material comprising a) a first resin layer, b) covered on both side by layers of fibrous reinforcements whereby c) one of the two fabric layers is coated with a second resin layer and d) wherein said second resin layer has a tack level of not more than 100 N. Such semi-preg material has improved handling properties and contributes to the superior mechanical properties of the composite material formed therewith.

Abstract: An electronic element includes a substrate, and a transparent conductive layer. The substrate includes a surface. The transparent conductive layer is formed on a surface of the substrate. The transparent conductive layer includes at least one carbon nanotube layer. Carbon nanotubes in the carbon nanotube layer are adhered together by the van der Waals attractive force therebetween.

Abstract: Structural components are disclosed that are fabricated from unidirectional carbon fiber composite materials into compound contour profiles along a longitudinal axis thereof without wrinkling of composite material plies oriented in various directions relative to the longitudinal axis. Methods of stacking, sequencing, and applying the material plies to fabricate the components are also disclosed.

Abstract: An apparatus for manufacturing a multi-layered preform molding material includes a reinforcement material and a resin material. The apparatus includes a mechanism for joining the reinforcement layers together by impregnation of the resin material into the reinforcement material to form the molding material, thereby obviating the need for any additional bonding to join the individual reinforcement layers before impregnation.

Abstract: 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.

Abstract: Fibrous structures that exhibit a Geometric Mean Elongation of greater than 14.95% as measured according to the Elongation Test Method are provided.

Abstract: A cover plate includes two substrates and a composite structure disposed between the two substrates. The cover plate has low specific weight and high strength. The composite structure includes an adhesive layer and a fiber layer disposed in the adhesive layer, where the fiber layer is made of degradable fibers or a composite material having degradable fibers fixed by a forming material.

Abstract: An anti-reflection coating has an average total reflectance of less than 10%, for example less than 5.9% such as from 4.9% to 5.9%, over a spectrum of wavelengths of 400-1100 nm and a range of angles of incidence of 0-90 degrees with respect to a surface normal of the anti-reflection coating. An anti-reflection coating has a total reflectance of less than 10%, for example less than 6% such as less than 4%, over an entire spectrum of wavelengths of 400-1600 nm and an entire range of angles of incidence of 0-70 degrees with respect to a surface normal of the anti-reflection coating.

Abstract: The present invention provides apparatus and methods for growing fullerene nanotube forests, and forming nanotube films, threads and composite structures therefrom. In some embodiments, an interior-flow substrate includes a porous surface and one or more interior passages that provide reactant gas to an interior portion of a densely packed nanotube forest as it is growing. In some embodiments, a continuous-growth furnace is provided that includes an access port for removing nanotube forests without cooling the furnace substantially. In other embodiments, a nanotube film can be pulled from the nanotube forest without removing the forest from the furnace. A nanotube film loom is described. An apparatus for building layers of nanotube films on a continuous web is described.

Abstract: An apparatus for manufacturing a multi-layered preform moulding material includes a reinforcement material and a resin material. The apparatus includes a mechanism for joining the reinforcement layers together by impregnation of the resin material into the reinforcement material to form the moulding material, thereby obviating the need for any additional bonding to join the individual reinforcement layers before impregnation.

Abstract: Fibrous structures that exhibit a cross machine direction total energy absorption (CDTEA) of greater than 8 cm-g/cm2 as measured according to the TEA Test Method.

Abstract: The present invention relates to a fiber including unmodified and/or modified starch and a crosslinking agent, and a web employing such a fiber.

Abstract: Composite concrete/bamboo structural members and process of manufacture therefor. The bamboo material includes layers formed of bamboo segments which have been dried and glue coated. The segments are substantially free of outer nodes and husk and inner membrane material prior to application of glue. The longitudinal axes of the segments in each layer are generally parallel to one another and are arranged in a mold to surround the surface of a cured concrete core. The layers of segments are heated, compressed and bonded together until the glue cures around the concrete core into a single integral structure. The concrete core is preferably reinforced with steel REBAR rods.

Abstract: This relates to a method, a device and a curved molded member made of composite material. From at least one composite strip (24) formed of at least two tapes (3, 4, 5) made of unidirectional reinforcing fibers, pre-impregnated with resin and pre-compacted one with the other, the strip is applied longitudinally on a silicone flexible mandrel (13), by compaction under vacuum to confer the specific shape of the mandrel to it, the resulting strip (24) is deposited on a heated metal tool (31) having a curve that complements the shape of the mandrel and forming the core (32) of a pressure and temperature application mold (26), the flexible mandrel is removed then the mold is brought to pressure and temperature for polymerization, and the member is demolded after cooling.

Abstract: A lightweight ballistic protection backpack and other useful items are realized utilizing one or more panels of ultra high molecular weight polyethylene (or UHMWPE) unidirectional laminate.

Abstract: A water-retainable molding is formed by mixing and hardening cement, fiber bundles and fiber masses, and includes first pores inside the fiber bundles, second pores between fiber bundles and a cement gel, third pores inside the fiber masses, fourth pores between the adjacent fiber masses, and fifth pores due to discharge of water content and air inside a platelike block. The first, second and fifth pores are employed as a capillary portion, the third pores are employed as a water-retaining portion, and the fourth pores are employed as a water communicating opening portion. When water is supplied to the surface, the water is absorbed from the fourth pores as well as the first, second and fifth pores, and is retained in the third pores. Furthermore, when the temperature rises, the water content is supplied from the third pores to the surface through the first, second and fifth pores so as to be evaporated and to control the temperature of the molding.

Abstract: A method of forming a composite body using a mould and an automated fiber placement machine comprising a fiber placement head, the method including moving the fiber placement head past the mould and depositing on the mould a plurality of fiber tows, the fiber tows being deposited side by side in a direction perpendicular to the movement of the fiber placement head and perpendicular to the direction of a normal of a surface of the mould where the fiber tows are deposited, thus forming a ply with a plurality of fiber tows placed side by side on the mould, wherein the fiber tows in the ply comprise first and second fiber tows having respective first and second fiber materials that are different from each other.

Abstract: An insulating label stock includes a thermal insulating layer, which may a fiberfill batt. The batt is laminated to at least one layer of film, paper or fabric. The label stock can be wrapped around a container, such as a can, bottle or pouch. The label stock may be coated with a coating material so that it is printable, thus imparting both insulating properties and print capability to a container.

Abstract: Semi-finished product, semi-finished product composite formed from semi-finished product, and method and apparatus for forming the semi-finished product. The semi-finished product includes reinforcing fibers and two layers of thermoplastic material. The reinforcing fibers are arranged between the two layers of thermoplastic material.

Abstract: The present disclosure relates to cementitious articles that are reinforced with a fabric made at least partially of high modulus polyolefin monofilament fibers. Preferably, the polypropylene monofilament yarns have a 3% secant modulus of elasticity of at least 100 g/denier. The high modulus polypropylene fabric has an intrinsic resistance to the alkaline conditions present in a cementitious composite, as well as a low elongation at break. The high modulus polypropylene may contain a nucleating agent to facilitate the process of obtaining desired draw ratio.

Abstract: Layers of unidirectional (UD) fiber prepreg are formed into a pre-plied, multi-directional, continuous fiber laminate that is used as a molding compound to form three dimensional structures. Cut-outs from the laminate are slotted and folded along fold lines to provide near-net-shaped preforms that may be compression molded to form fiber-reinforced composite structures having complex shapes.

Abstract: A nonwoven fabric that is not easily damaged during use is provided. A fiber web supported by a predetermined supporting member from the lower face side is blown with fluid, mainly composed of gas, from the upper face side of the fiber web to move fibers that constitute the fiber web, thereby forming at least a plurality of open areas. The nonwoven fabric includes a plurality of open areas continuously formed along a predetermined direction with a predetermined interval and a plurality of joining portions, each of which are formed between the open areas adjacent to each other in a predetermined direction.

Abstract: A composite spacer operable to be mounted on a first component is disclosed herein, wherein compression loads associated with attaching the first component to some other structure are born by the composite spacer to limit compressive deformation of the first component. The composite spacer includes a first body formed of resin and defining an aperture extending along an axis. The composite spacer also includes a plurality of first fibers positioned in the first body about the aperture. Each of the first fibers extends substantially parallel to the axis and increases a compressive strength of the first body relative to the axial direction.

Abstract: An aerospace vehicle includes a plurality of composite stiffeners. Each stiffener of the plurality has a stack of plies of reinforcing fibers. At least some of the plies in the stack have reinforcing fibers oriented at ±? with respect to an axis of primary loading, where a is between 2 and 12 degrees. At least some of the plies in the stack have reinforcing fibers oriented at ±? with respect to the axis of primary loading, where ? is between 50 and 85 degrees.

Abstract: The present invention relates to electrical separators and to a process for producing them. An electrical separator is a separator used in batteries and other arrangements in which electrodes have to be separated from each other while maintaining ion conductivity for example. The separator is preferably a thin porous insulating material processing high ion perviousness, good mechanical strength and long-term stability to the chemicals and solvents used in the system, for example in the electrolyte of the battery. In batteries, the separator shall fully electrically insulate the cathode from the anode. Moreover, the separator shall be permanently elastic and follow movements in the system, for example in the electrode pack in the course of charging and discharging.