Abstract: This disclosure relates to an article (e.g., a vapor-permeable, substantially water-impermeable multilayer article) that includes a nonwoven substrate and a film supported by the nonwoven substrate. The film includes a polyolefin, a nanoclay, and a pore-forming filler.

Abstract: A method, apparatus, and composite fuel tank for manufacturing a structure is provided. A first composite layer and a second composite layer are placed on a mold. The second composite layer and the first composite layer are cured. The first composite layer and the second composite layer form the structure. The second composite layer is configured to dissipate an electric charge on a surface of the structure.

Abstract: A water-permeable woven geotextile fabric for providing soil reinforcement and/or stabilization, for example as an underlayment in road construction, utilizes a series of round warp fibers, in combination with a series of flat warp fibers, across the width of the fabric to increase water flow while still providing desired filtration. In particular, the round warp fibers form angles that allow greater amounts of water to pass through the fabric. In addition, using both round and flat warp fibers results in increased roughness of the fabric surface, which makes the fabric more resistant to being pulled out of the soil when pulled on. Furthermore, one or more of the round and/or flat warp fibers can include a color selected for high visibility to the human eye in daylight conditions.

Abstract: A carbon nanotube composite film includes a carbon nanotube film and a polymer material composited with the carbon nanotube film. The carbon nanotube film includes a number of carbon nanotube linear units spaced from each other and a number of carbon nanotube groups spaced from each other. The carbon nanotube groups are combined with the carbon nanotube linear units. The polymer material is coated on surfaces of the carbon nanotube linear units and the carbon nanotube groups.

Abstract: Multi-axial fabrics (including hybrid, multi-axial fabrics) and polymer-fiber laminates are disclosed. Bodies (e.g., cylindrical and/or flanged bodies) incorporating the fabrics and/or laminates are also disclosed. The bodies exhibit improved performance and/or reduced costs for connecting applications.

Abstract: The invention relates to a fixing thread 1, 5, 10, 16 for sewing together reinforcing fibers, in particular to form a fiber preform, for the production of a fiber-reinforced composite component by means of impregnation with a curable polymer material. According to the invention, the fixing thread 1, 5, 10, 16 has an interface 4, 9, 15, 19 for locally increasing the ductility of a matrix formed by the curable polymer material and has at least one core thread 2, 6, 11, 12, 17, so as in particular to reduce the tendency for microcracks to form in the matrix of the finished composite component in the regions where the fixing threads 1, 5, 10, 16 penetrate. The interface 4 may be formed, for example, by an enclosure of the core thread 1 by a thermoplastic polymer material, for example by polyethylene, polypropylene or the like.

Abstract: A new class of high modulus polypropylene multifilament fiber and/or yarn is provided. Such a multifilament fiber and/or yarn exhibits an exceptional combination of high strength and toughness with low weight and density. The inventive fibers thus permit replacement of expensive polymeric fibers within certain applications with lower cost alternatives, or replacement of high density components with such low density fibers, without sacrificing strength or durability. Such multifilament fibers are produced through melt-spinning processes and exhibit highly unique microstructures therein, including significant void volumes, interspersed and crossed voids, and nanofilament bridges within such voids. Such microstructural characteristics appear to impart the exceptional properties noted above.

Abstract: An energy-absorbing member has a structure in which a plurality of fiber reinforced resin layers are layered in a thickness direction of said member and includes as the plurality of fiber reinforced resin layers, at least a plurality of unidirectional materials each including unidirectionally aligned reinforcing fibers and a resin and a plurality of cross materials each including a reinforcing fiber woven fabric and a resin, wherein lengths of the plurality of unidirectional materials in an external-loading direction are sequentially changed.

Abstract: A new class of high modulus polypropylene multifilament fiber and/or yarn is provided. Such a multifilament fiber and/or yarn exhibits an exceptional combination of high strength and toughness with low weight and density. The inventive fibers thus permit replacement of expensive polymeric fibers within certain applications with lower cost alternatives, or replacement of high density components with such low density fibers, without sacrificing strength or durability. Such multifilament fibers are produced through melt-spinning processes and exhibit highly unique microstructures therein, including significant void volumes, interspersed and crossed voids, and nanofilament bridges within such voids. Such microstructural characteristics appear to impart the exceptional properties noted above.

Abstract: A composite laminate is made by providing at least a first composite ply and a second composite ply, each having longitudinally oriented fibers in a thermoplastic matrix. The second composite ply is disposed on, and in transverse relation to, the first composite ply. Preferably, the second ply is disposed at 90° relative to the first ply. An article can be manufactured by providing a core material and applying a reinforcing material to a portion of the core material. The reinforcing material is a reinforcing composite ply or a composite laminate as described herein. Optionally, the core material is a prepreg that may be a composite laminate.

Abstract: This invention is method of producing a creping cylinder adhesive comprising: contacting a dry form PVOH with a liquid form PVA at a temperature of less than 80° C., maintaining the PVOH and PVA at a temperature of between 90-95° C. until the PVOH is completely dissolved into a medium, and allowing the medium to cool to below 80° C.

Abstract: A film stack made from compacted green films and capable of being sintered to form a ceramic component with monolithic multi-layer structure is disclosed. The film stack includes a functional layer comprising a green film comprising a functional ceramic and a tension layer comprising a green film comprising a dielectric material. The tension layer is directly adjacent to the functional layer in the multi-layer structure. The multilayer structure also includes a first metallization plane and a second metallization plane. The functional layer is between the first metallization plane and the second metallization plane.

Abstract: A laminated body is provided that exhibits impact resistance, wear resistance and scratch resistance, and which enables a reduction in weight together with a reduction in the dielectric constant. The laminated body 100 includes a first tabular member 10 configured from a ceramic material and having a first thickness t1, and a second tabular member 20 configured from a polymer material and having a second thickness t2. The laminated body 100 withstands a falling-ball impact breaking test from a height that is higher than that exhibited by a single layer body that is configured from the ceramic material and of a thickness t3 that is the sum of the first thickness t1 and the second thickness t2.

Abstract: Solid, flexible composite structures may include a textile arrangement of at least one textile layer constructed of textile fibers and having a distribution of pores formed therein, with a first resin filling pores having a pore diameter equal to or less than a pore diameter threshold, and a second resin bonded to the first resin and substantially filling pores having a pore diameter greater than the pore diameter threshold. Some embodiments include a rigid first resin such as an epoxy, and a flexible second resin such as a silicone. Methods of producing composite structures may include selectively filling, in a textile layer having a number of pores formed therein, only those pores having a pore diameter equal to or less than a pore diameter threshold, with a first resin, and substantially filling the remaining pores in the textile layer with a second resin.

Abstract: A carbon-fiber-reinforced plastic prepared by impregnating a matrix resin into a sheet-like base material includes discontinuous carbon fibers, wherein a content ratio of carbon fibers having lengths of 10 mm or longer in the base material is 60 wt % or more relative to a total amount of the carbon fibers, and an average value of orientation degrees of carbon fibers contained in the base material is 2-10.

Abstract: A cover member of an illuminating unit is formed of a film insert molded product, in which a film is disposed on a decorative face. The film is arranged so an end part of the film is positioned in front of an end part of the decorative face, whereby a film end protecting area formed of an exposed part of a molded resin layer is provided between the end part of the decorative face and the end part of the film, and a surface of the film end protecting area is made flush with the surface of the film. A corner between the end part of the decorative face and an end face of the molded resin layer is set to be an acute angle, and the end face of the molded resin layer functions as a contact face with respect to a ceiling trim.

Abstract: A joined body of dissimilar aluminum alloy materials includes a first Al—Mg—Si aluminum alloy material, a second Al—Mg—Si aluminum alloy material, and a single Al—Mg aluminum alloy material. The joined body of dissimilar aluminum alloy materials is formed by welding the first Al—Mg—Si aluminum alloy material and the second Al—Mg—Si aluminum alloy material to the single Al—Mg aluminum alloy material. The Al—Mg aluminum alloy material and the first Al—Mg—Si aluminum alloy material are joined by arc welding. The Al—Mg aluminum alloy material and the second Al—Mg—Si aluminum alloy material are joined by friction-stir welding.

Abstract: A mammalian tissue scaffold and method for making a tissue scaffold including a rigid scaffold body of biocompatible glass fibers bonded together and in special alignment to define open channels within the scaffold to allow fluid flow into and within the scaffold.

Abstract: A sound panel includes a frame, the frame having a front end and a back end; an absorption member, the absorption member having a front end and a back end; a first board, the first board having an inner surface and an outer surface, the inner surface of the first board facing the front end of the frame and the front end of the absorption member, the first board fastened to one of the front end of the frame or the front end of the absorption member; and a second board, the second board having an inner surface and an outer surface, the inner surface of the second board facing the back end of the frame and the back end of the absorption member, the second board fastened to one of the back end of the frame or the back end of the absorption member.

Abstract: Methods creating composite preforms with a three-dimensional weaving pattern include stacking material layers and then connecting them with interlayer reinforcements. First and second layers are aligned and separated by a first layer spacing. First interlayer reinforcements are then inserted through at least the first and the second layers. At least a third layer is aligned with at least the first and second layers. Second interlayer reinforcements are inserted through at least the second and third layers, using the first layer spacing between the first and second layers to manipulated the second interlayer reinforcements during insertion. Following the insertion of at least the second interlayer reinforcement, this layer spacing is closed to bring the first and second layers into contact. Further layers and interlayer reinforcements may be added, using additional layer spacings to manipulate additional interlayer reinforcements to form complex three-dimensionally woven composite preforms.

Abstract: Provided is an advanced grid structure manufactured by a lamination step of laminating a first tape prepreg group, a second tape prepreg group, and a third tape prepreg group repeatedly in the stated order on a forming die, in which grooves (2, 3, 4) in a lattice shape are formed in three directions, so as to provide crossing regions (7, 8, 9) in which two tape prepreg groups overlap each other, and a heating forming step of forming a laminate by heating under pressure. In the lamination step, the first tape prepreg group, the second tape prepreg group, and the third tape prepreg group are respectively laminated as one layer in crossing regions (7, 8, 9) so that a tape width is maintained, and laminated in non-crossing regions (2a, 3a, 4a) in a state of being folded as two layers in a width direction thereof.

Abstract: A product sheet of composite material can be made by disposing composite materials of composite material in adjacent (side-by-side) relation with each other. The composite materials comprise fibers in a thermoplastic matrix material. The adjacent composite materials are bonded together to provide a product sheet of composite material. Preferably, a cross ply of composite material is disposed on the composite materials. The cross ply may be a unidirectional sheet and the fibers in the cross ply may be disposed in transverse relation to the fibers in the composite materials.

Abstract: A liquid absorber that is constituted mainly by fibers, includes fusion bondable resin, and is configured to absorb liquid, includes a first surface having a largest surface area, and a second surface perpendicular to the first surface. The second surface includes a surface low in degree of fusion bond of the fusion bondable resin and a surface high in degree of fusion bond of the fusion bondable resin that has a higher degree of fusion bond of the fusion bondable resin than the surface low in degree of fusion bond, and at least a part of the surface low in degree of fusion bond absorbs the liquid.

Abstract: A fiber-reinforced composite material (11) is constructed by laminating a plurality of fiber bundle layers formed of a reinforced fiber to form a laminated fiber bundle layer and further impregnating the laminated fiber bundle layer with a matrix. At either side of a neutral surface (16), the number of +? layers which are fiber bundle layers having a fiber orientation angle of +? and the number of ?? layers which are fiber bundle layers having a fiber orientation angle of ?? are the same, the order of laminating the fiber bundle layers is inversely symmetrical with respect to the standard surface, and the number of other fiber bundle layers disposed between the +? and ?? layers at either side of the standard surface is the same.

Abstract: In accordance with the present teachings, a method of producing composite having a 3A Q3D reinforcement phase is disclosed. The method of producing the composite provides producing a three-dimensionally woven configuration where a first fiber from a first sheet of reinforcement phase is interwoven or mechanically linked with at least one of an adjacent second layer and then back into the first sheet. The linking fibers are passed between layers at an acute angle generally less than about 10 degrees. The method includes impregnating the woven construction with a curable polymer such as epoxy.

Abstract: Doctor blade material, which is composed of a number of layers that are connected to each other and include at least a frame layer. The frame layer, includes outer layers on both sides and is constructed of carbon fiber and/or mineral fiber, e.g. glass fiber, basalt fiber, et cetera. The outer layers include carbon fiber. The outer layer is a compact-multiaxial layer composed of a surface layer containing carbon fiber and of two or more support layers. The surface layer includes carbon fibers that are at a 90° angle with respect to the longitudinal direction of the doctor blade, wherein the fibers in the first support layer following the surface layer are at an angle between (?70°)-(?20°) or (+20°)-(+70°) with respect to the fibers of the surface layer. The fibers in the second support layer following this are at an angle between (+20°)-(+70°) or (?70°)-(?20°) with respect to the fibers of the surface layer.

Abstract: The invention relates to reinforcing fiber scrims, comprising multi-layer, multiaxial scrims, which each comprise individual fibers arranged next to each other in a layer, wherein at least two layers are at an angle to one each other in the layer plane and are connected by a fixing means. To improve the processing of the multiaxial scrims and significantly reduce the processing time, at least two prefabricated MD scrims are arranged at an angle in a layer plane and connected to each other. Thus a reinforcing fiber scrim is provided, which has at least two individual fiber scrims and which, for a 0° position of the individual MD scrims, has six individual fiber scrims. The number of MD scrims arranged one over the other can be arbitrarily increased so that an increased layer structure is already present when the reinforcing fiber scrim is produced.

Abstract: Provided is an advanced grid structure manufactured by a lamination step of laminating a first tape prepreg group, a second tape prepreg group, and a third tape prepreg group repeatedly in the stated order on a forming die, in which grooves (2, 3, 4) in a lattice shape are formed in three directions, so as to provide crossing regions (7, 8, 9) in which two tape prepreg groups overlap each other, and a heating forming step of forming a laminate by heating under pressure. In the lamination step, the first tape prepreg group, the second tape prepreg group, and the third tape prepreg group are respectively laminated as one layer in crossing regions (7, 8, 9) so that a tape width is maintained, and laminated in non-crossing regions (2a, 3a, 4a) in a state of being folded as two layers in a width direction thereof.

Abstract: The fiber direction of a carbon fiber material of a test object is detected by means of the polarization direction of light reflected by the test object. If, for example, non-polarized light impinges upon carbon fibers, light reflected by the fibers is polarized in fiber direction.

Abstract: One embodiment of the present disclosure relates to a cementitious composite material for in-situ hydration that includes a mesh layer, a cementitious material, a sealing layer, and a containment layer. The mesh layer includes a plurality of fibers arranged in a nonwoven configuration and forms a mat having a first side and an opposing second side. The cementitious material is disposed within the mesh layer and includes a plurality of cementitious particles. The sealing layer is disposed along the first side of the mesh layer and is coupled to the plurality of fibers. The containment layer is disposed along the opposing second side of the mesh layer and is configured to prevent the plurality of cementitious particles from migrating out of the mesh layer.

Abstract: An anisotropic wound drape for treating a wound on a patient includes a flexible sheet for placing over a tissue site The flexible sheet includes a first isotropic zone, and a second isotropic zone. The first isotropic zone and the second isotropic zone are configured to provide the flexible sheet with anisotropic stretching properties. The anisotropic drape may used as part of a reduced-pressure wound treatment system. Other systems and methods are also presented.

Abstract: A method of producing a fiber preform, including forming a weaved preform fabric with a connection zone and multiple layers extending therefrom, each layer having an edge attached to the connection zone with a remainder of the layers extending freely from each other and from the connection zone, the attached edges being parallel and adjacent one another, each of the layers having a weaved structure including warp yarns extending at least substantially parallel to the attached edges and weft yarns extending at least substantially perpendicularly to the warp yarns, deforming at least one of the layers along a direction at least substantially parallel to the warp yarns until the weft yarns thereof have a corresponding desired orientation with respect to the warp yarns, and attaching the layers together away from the attached edges. A method of forming a weaved preform fabric for a fiber preform is also discussed.

Abstract: A phase change memory cell includes a first circuit and a second circuit. The first circuit comprises a first electrode, a carbon nanotube layer and a second electrode electrically connected in series. The first circuit is adapted to write data into the phase change memory cell or reset the phase change memory cell. The second circuit comprises a third electrode, a phase change layer and a fourth electrode electrically connected in series, at least part of the phase change layer is overlapped with the carbon nanotube layer. The second circuit is adapted to read data from the phase change memory cell or reset the phase change memory cell.

Abstract: A sound panel includes an outer fabric, an absorption member that at least indirectly connects to the outer fabric, and a frame that is at least indirectly connected to the absorption member, where the outer fabric is fastened to the frame.

Abstract: In a preferred embodiment, a membrane for use as an underlayment includes a basemat, which includes at least three plies, a ply of a meltblown polymer sandwiched between two plies of spunbond polymer; and a flexible coating applied to the basemat, the coating having a cementitious hydraulic component, a polymer comprising a water-soluble, film-forming polymer; and water. The finished membrane is flexible. Another embodiment for an underlayment for use underneath ceramic tiles includes a basemat and a coating of a set hydraulic component less than ?? inches thick. A method of making the flexible membrane includes assembling components including a hydraulic component, a water-soluble, film-forming polymer and water, then mixing them to form a coating. A basemat is provided onto which the coating is applied over a flexible surface or no surface. After coating at least one face of the basemat, the coating is dried to form the membrane.

Abstract: A composite article having a longitudinal direction and a transversal direction. The article includes a stack of plies wherein one ply is a bottom ply and one ply is a top ply. Most or all of the plies include fibers. A plurality of plies have fibers substantially in an orthogonal direction and substantially in a same direction as the longitudinally direction of the article. The bottom ply and the top ply have fibers in a substantially orthogonal direction to the longitudinal direction of the article. At least one ply has the fibers substantially in the same direction as the longitudinal direction of the article. At least one of the plies having fibers substantially in the longitudinal direction includes particles selected from the group of thermoplastic tougheners, nano particles, micro particles, elastic particles, elastomer particles and polymer particles or a combination. Also a method of forming an article on a tool.

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: The present disclosure relates to a transparent composite material capable of exhibiting relatively high light transmittance, reduced haze, fabrication in the form of a thin film, and improved mechanical strengths (impact strength, flexural strength, etc.), by way of unidirectionally aligning glass fiber filaments without intersecting or overlapping with each other, and embedding the aligned glass fiber filaments into a transparent resin formed on a film, and a manufacturing method thereof. The transparent composite material is composed of glass fiber plates including a transparent resin, and a plurality of glass fiber filaments embedded in the transparent resin in a unidirectionally aligned state.

Abstract: Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties. More particularly, ballistic resistant fibrous composites having enhanced flexural properties, which correlates to low composite backface signature. The composites are useful for the production of hard armor articles, including helmet armor.

Abstract: Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties. More particularly, ballistic resistant fibrous composites having high interlaminar lap shear strength between component fiber plies or fiber layers, which correlates to low composite backface signature. The high lap shear strength, low backface signature composites are useful for the production of hard armor articles, including helmet armor.

Abstract: Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties. More particularly, ballistic resistant fibrous composites having enhanced a dynamic storage modulus, which correlates to low composite backface signature.

Abstract: This invention pertains to an article for use in body armor, comprising a plurality of discrete sheet subassemblies contoured to the shape of a female breast arranged in a stack, without bonding, such that the breast contours are positioned on top of each other, each of the subassemblies comprising at least two nonwoven layers of high tenacity yarns such as par-aramid, a binder and a resin.

Abstract: Structural panels and methods of making composite material for such structural panels may include applying a resin to a nonwoven fibrous web, where the nonwoven fibrous web includes a combination of glass fibers and polymer fibers. The web may be dried at a first stage temperature at or below a curing temperature of the resin for a time sufficient to substantially dry but not substantially cure the resin. The web may be laminated at a second stage temperature sufficient to fully cure the resin to produce a composite material. The second stage temperature may be above the melting point of the polymer fibers, and the resin may cause the composite material to retain a substantially rigid shape upon completion of the laminating operation.

Abstract: A laminate for joining parts of composite material includes a first layer of adhesive material, a second layer of preimpregnated composite material, adjacent to the first layer, and a third layer of adhesive material, adjacent to the second layer. A method for joining at least two parts of composite material with a laminate includes the steps of providing already cured composite material parts, positioning the laminate for joining between two cured parts, and applying pressure and temperature to the whole structure including the at least two parts and the laminate, in such a way that the laminate is cured and the at least two parts are joined together in a resulting structure.

Abstract: The invention relates to a material (I) adapted for the production of composite parts by a process in which a thermoplastic or thermosetting matrix is diffused within said material, comprising at least one sheet (1) of unidirectional carbon fibres (2) associated on at least one of its faces with at least one conductive component (5) associated or integrated with a permeable layer (3a, 3b, 10) in a thermoplastic material or in a mixture of thermoplastic or thermosetting materials, said permeable layer being in the form of a fabric, a powder, a porous film, a knit, or, preferably, a non-woven (3a, 3b, 10), a process for fabricating composite parts using such a material and the composite parts that can be obtained by such a process.

Abstract: An impregnated fiber tow comprising multiple unitary graphene-based continuous graphitic fibers impregnated with a matrix material, wherein at least one of the continuous graphitic fibers comprises at least 90% by weight of graphene planes that are chemically bonded with one another having an inter-planar spacing d002 from 0.3354 nm to 0.4 nm as determined by X-ray diffraction and an oxygen content less than 5% by weight, wherein the graphene planes are parallel to one another and parallel to a fiber axis direction and the graphitic fiber contains no core-shell structure, has no helically arranged graphene domains or domain boundary, and has a porosity level less than 5% by volume.

Abstract: A method of finishing a fan blade includes bonding a sheath and a cover to an aluminum fan blade with an airfoil, a root, a leading edge and a tip; imparting residual stresses onto the blade; coating the blade to protect exposed areas of the blade; and curing the blade in low-temperature cure cycles to preserve residual stresses imparted.

Abstract: Provided is a window structure. The window structure for a display device is formed by laminating a plurality of resin layers including fiber structures formed in a grid shape. A first grid array angle in a first direction of a first resin layer positioned at the upper side when viewed from a laminated direction of the plurality of resin layers is different from a second grid array angle in a first direction of a second resin layer positioned directly under the first resin layer.

Abstract: A woven preform used to reinforce a composite structure which includes a central portion having a plurality of interwoven layers. The preform also includes first and second end portions having a plurality of independent woven layers that are integrally woven with the plurality of interwoven layers in the central portion and which extend along the entire length the preform. Interspersed between the plurality of independent woven layers in the first and second end portions are bias plies.

Abstract: A woven preform used to reinforce a composite structure which includes a central portion having a plurality of inter-woven layers. The preform also includes first and second end portions having a plurality of independent woven layers that are integrally woven with the plurality of interwoven layers in the central portion and which extend along the entire length the preform. Interspersed between the plurality of independent woven layers in the first and second end portions are bias plies.