Abstract: Systems and methods for reducing noise in aircraft fuselages and other structures are described herein. A noise reduction system configured in accordance with one embodiment of the invention includes an auxetic core, a damping layer, and a constraining layer. A method for manufacturing a structural assembly in accordance with another embodiment of the invention includes forming a stiffener by positioning a first ply of composite material against a first tool surface, positioning damping material against the first ply, and positioning a second ply of composite material against the damping material to sandwich the damping material between the first and second plies. The method can further include forming a skin by positioning a third ply of composite material against a second tool surface offset from the first tool surface, and attaching the stiffener to the skin by co-curing the first, second and third plies of composite material.

Abstract: Provided are a shape memory polymer composition, which comprises a bifunctional isocyanate and/or a trifunctional isocyanate, and a polyol having an average molecular weight of from 100 to 550, with a molar ratio in terms of functional groups of isocyanate:polyol=0.9 to 1.1:1.0; FRP having the shape memory polymer and a fibrous material; and a production process of the FRP comprising impregnating the fibrous material with, as a matrix resin, the shape memory polymer composition and curing. According to the present invention, the shape memory polymer composition has an extended pot life and FRP has excellent inflatability.

Abstract: A process for manufacturing a packaging material with at least two films (12,16) or foils bonded together via at least one adhesive layer (13) to form a multi-layer laminate (10) is such that at least one adhesive layer is an electron-beam-curable adhesive and the laminate (10) is radiated with electrons in order to cure the adhesive. The laminate is particularly suitable for manufacturing pouch-type forms of packaging, in particular for snack foods. The production of laminate using electron-beam-curable adhesive results in a significant reduction in throughput time and in a reduction of solvent emissions by replacing solvent-based adhesives with electron-beam-curable adhesives.

Abstract: The present invention relates to a method for liquid crystal display element without substrates, which comprises applying a release agent to assisting substrates in the process of producing the liquid crystal display so that the assembled liquid crystal display element can be separated from the assisting substrates and the liquid crystal display element is obtained, wherein said release agent comprises (a) 2-20 wt % of compounds selected from the group consisting of silicone, fluorine compounds and mixtures thereof; (b) 0.01-0.6 wt % of release modifier; and (c) a solvent as a complement to 100 wt %.

Abstract: A method and apparatus for forming objects. Layers of precursor material may be placed on top of each other. The layers of precursor material may be selectively cured as the layers of precursor material are placed on top of each other to form an object and a frame associated with the object.

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: A structure comprising a cured composite part formed from a series of plies of fibre-reinforced composite material; a doubler plate attached to the composite part by an array of pointed prongs which partially penetrate the composite part; and a hole passing through the doubler plate and the composite part. An interface plate carries the array of prongs on a first side and is attached to the doubler plate on a second side.

Abstract: A method of manufacturing a Z-section component from composite material uses a mold having a convex mold portion and a concave mold portion. The method includes the preparation of a vacuum bag for a polymerization cycle, including the covering the fresh component with a layer of peel ply formed from a plurality of strips of peel ply and fixing the layer of peel ply perimetrically to the mold using an adhesive tape. A line of sealant is positioned perimetrically above the adhesive tape around the fresh component and a separator film is positioned above the layer of peel ply so as to cover the layer of peel ply and the perimetric line of sealant. A ventilation textile is placed perimetrically on the mold, the textile having an aperture which is positioned so as to leave uncovered an underlying part substantially coinciding with the fresh component. A vacuum bag is applied for the polymerization cycle.

Abstract: The present application relates to a wound dressing, method of producing a wound dressing of this type and its use.

Abstract: A handling layer and adhesive parts having the handling layer are formed according to the present invention along with used therefore.

Abstract: The invention provides a functionalised compound of formula (II), which functionalised compound comprises n carbene precursor groups which are the same or different, wherein n is an integer equal to or greater than 3: wherein x is 1, E is a group which is capable of being converted into a carbene reactive intermediate group, Q is a core moiety, a polymer or a dendrimer, and each of the [R]x-E-L- groups, which are the same or different, is independently selected from a group of formula (Ie) and a group of formula (Ia): wherein L is a single bond or a linker group as defined herein, R is a terminal group as defined herein, and R1 is as defined herein. Further provided is the use of the functionalised compound as an agent for producing a chemically-bound three-dimensional network on or within a substrate.

Abstract: The invention discloses double-sided metal clad laminates and fabrication methods thereof. A plurality of polyamic acid coatings is co-extruded on a first metal foil and heat imidization to provide a multilayer polyimide film. A second metal foil is hot pressed on the multilayer polyimide film, thus providing a double-sided metal clad laminate. The polyamic acid coatings include a first, a second, and a third polyamic acid coating with surface tensions of S1, S2, and S3, respectively, satisfying relations of S1>S2>S3, wherein the first polyamic acid coating is the coating directly applied on the first metal foil.

Abstract: A method for manufacturing a liquid ejection head having an ejection port-forming member in which an ejection port configured to eject liquid is formed, includes the steps of preparing a substrate including a base substrate; a first layer composed of a resin composition not containing a polymerization initiator but containing a compound that can be polymerized by irradiation with active energy rays under the presence of the polymerization initiator; and a second layer composed of an active energy ray-curable resin composition containing the polymerization initiator; pressing a mold, on which a pattern of the ejection port has been formed, against the first layer and the second layer; irradiating the second layer with the active energy rays while the mold is being pressed against the first layer and the second layer; bonding the second layer to another supporting substrate; and detaching the base substrate.

Abstract: The object of the invention is to provide a protective sheet for photovoltaic apparatus best-suited to build up a photovoltaic apparatus having higher light efficiency than could be achieved with conventional structure. The protective sheet for photovoltaic apparatus comprises a transparent substrate, and a transparent resin layer located on the surface of the transparent substrate and having fine convexities and concavities. The transparent resin of the transparent resin layer has a refractive index equal to or less than that of the transparent substrate.

Abstract: In accordance with the present invention, there is provided a method for the forming or curing of polymer composites, the method including the step of: forming or curing the polymer composite in the presence of water vapor at about atmospheric pressure.

Abstract: Hemostatic products with improved stability are prepared from crosslinked chitosan hemostatic compositions. The crosslinked chitosan hemostatic compositions have improved stability and can be prepared into a variety of medical devices in various shapes and sizes so as to be usable for inhibiting blood flow and ooze from substantially any type of bleeding site. For example, the chitosan compositions can be prepared into hemostatic gauze pads, bandages, wrappings, wound dressings, wound coverings, wound dressings, incision dressings, sealers, sheets, rolls, combinations thereof, and the like.

Abstract: An improved design and a method of assembly of end fittings to sucker rods which may be of conventional length or continuous sucker rods is described herein. The end fittings and rods are assembled so as to form wedges which enhance the connectability of the end fitting to the rod, and further, the wedge or wedges approach the rod asymptotically so as to avoid any abrupt discontinuities in the wedge or wedges thus substantially eliminating stress concentration areas and potential failure areas in the rod. The assembly method provides for integrity in the rod to end fitting assembly to promote longer connection life and fewer shop rejections and field failures.

Abstract: A method of manufacturing a panel, the panel comprising a composite skin and at least one composite stiffener, the method comprising: positioning first and second mandrels on opposite sides of the stiffener; positioning first and second compaction tools on opposite sides of the skin; and compacting the skin between the first and second compaction tools by moving one or both of the compaction tools, wherein the movement of the compaction tool(s) causes the first and second mandrels to move towards the stiffener along inclined paths so as to compact the stiffener between the mandrels.

Abstract: A system for manufacturing a composite part from composite material comprises a bag and a tool. The bag may retain a first portion of the composite material and may include a chamber and a sheet, to which the chamber is coupled. The chamber may be positioned adjacent a rigidized support configured to maintain the chamber in the shape of a non-planar feature of the composite part. The tool may include an upper surface configured to retain a second portion of the composite material and shaped to correspond to an outer mold line of the composite part. The bag may be placed upon the upper surface of the tool such that the composite material is fully enclosed by the combination of the bag and the upper surface of the tool. A heating element may provide a high temperature to cure the composite material.

Abstract: A method for producing a composite material having a carbon nanotube array, includes the steps of: (a) providing the carbon nanotube array, the carbon nanotube array has a first end surface and a second end surface opposite to the first end surface; (b) providing a first board and a second board, fixing the first end surface of the carbon nanotube array on the first board, fixing the second end surface of the carbon nanotube array on the second board; (c) packaging the first board and the second board to form an apparatus having an entrance; (d) providing a liquid polymer precursor, applying the liquid polymer precursor from the entrance to the apparatus until the liquid polymer precursor submerge carbon nanotube array; and (e) solidifying the liquid polymer precursor.

Abstract: The invention relates to an article including an elastic main body on the basis of a vulcanized rubber (17) having an article surface that is susceptible to wear, which is provided with a textile layer. The textile layer, particularly a woven fabric (16) or knitted fabric, has a mesh design that allows the vulcanized rubber (17) to penetrate to the textile surface to form a textile-vulcanized rubber hybrid system (15), wherein the vulcanized rubber portion on the textile surface can be controlled by means of the stitch number, stitch width and the thread design of the textile layer. The article is in particular a drive belt and in connection with the primary intended use, a method for making a drive belt is provided.

Abstract: The invention relates to novel sound-insulating composite materials, which are in particular suitable as materials for the flooring sector and for interior work. The composite material according to the invention comprises at least one textile fabric in addition to suitable support materials, the textile fabric being end-consolidated by means of a B-stage binder and having cavities which correspond to a pore volume in the region of more than 20%.

Abstract: A method for splicing honeycomb core together to form a core structure, such as an acoustic panel for an aircraft. The core structure may comprise a first honeycomb core, a second honeycomb core, and an intermediate bonding part disposed between the first and second honeycomb cores. The intermediate bonding part may comprise a syntactic core wrapped with or sandwiched between a non-foaming film adhesive. The syntactic core sandwiched between a first and second layer of film adhesive and a first and second honeycomb core is then compressed by vacuum and cured to bond the honeycomb cores together, forming the core structure.

Abstract: Disclosed is a process for producing composite board, and the said board is glass fiber reinforced magnesium cement board with wood grain. The process comprises two steps of preparing a mold with wood grain and preparing glass fiber reinforced magnesium cement board using the mold. The first step comprises forming film bearing wood grain, copying the wood grain onto mill rolls, and rolling the formwork with the mill rolls. The second step comprises steps of preparing MgCl2 solution, agitating the mixed raw materials to obtain slurry, conveying the molds, scratching the slurry, disposing the raw materials, rolling, separating, shelving, curing, impregnating the board into water to remove free MgCl2, cutting, spraying protecting-paint, and so on. The process can produce the board with three-dimensional appeal, wood grain similar to that of log, and beautiful appearance.

Abstract: A method for manufacturing a blade spar for a wind turbine blade includes positioning a first spar segment having a first adhering portion; positioning a second spar segment having a second adhering portion at the first spar segment such that the first adhering portion and the second adhering portion are at least partially overlapping, wherein an adhesive is at least partially provided between the overlapping adhering portions; providing at least one fiber layer impregnated with an uncured resin on the outer surfaces of the first and second spar segments at least in the joint region of the first and second spar segments; and simultaneously curing the adhesive and the resin, thereby fixating the first and the second spar segments to each other.

Abstract: In a dashboard insulator for a vehicle, an inner layer laminated between front and rear layers is formed by laminating fusion, barrier and other fusion films and has a large number of small holes with a uniform opening rate. The both layers are formed by a thermoplastic material with predetermined basis weight, and Young's modulus. The both fusion films formed by a thermoplastic material with a melting point lower than that of the barrier film fuse the both layers to the barrier film. Each fusion part of the both fusion films has a predetermined fusion force in its predetermined range.

Abstract: Provided is a laminated body capable of reducing the surface roughness of the surface of a roughening-treated cured body layer, and increasing the adhesive strength between the cured body layer and a metal layer. A laminated body includes a cured body layer formed by: laminating a resin film on a substrate, forming a preliminary-cured body layer by preliminary-curing the resin film at 100° C. to 200° C., and performing a roughening treatment on the surface of the cured object layer at 55° C. to 80° C. The resin film is formed from a resin composition including an epoxy resin, a phenol curing agent, a curing accelerator, and a surface-treated substance which is a surface treated, using 0.5 to 3.5 parts by weight of a silane coupling agent, on 100 parts by weight of inorganic filler with a mean particle diameter of 0.05 to 1.5 ?m. The silane coupling agent has an epoxy group, an imidazole group, or an amino group.

Abstract: A method of making tough, water-proof building panels depositing a first fiber-rich layer onto a support, the first fiber-rich layer having a width defined by first and second side edges, a length direction, and a top surface; placing foam blocks on the first layer, lengths of the foam blocks extending generally between the first and second side edges of the first fiber-rich layer; depositing a second fiber-rich layer onto the combination of the first fiber-rich layer and the foam blocks, thereby to develop an uncured precursor to the building panel; and curing the uncured precursor to the building panel thereby to make a generally rigid structural building panel.

Abstract: A cellular composite structure includes a grid having groups of angularly intersecting ribs. The ribs of each group are oriented substantially in the same direction to each other and angularly oriented from the other rib groups. An additional rib defines a composite structure outer perimeter wall and can be differently angularly oriented from the other ribs. A contiguous rib wall is created by segments of ribs defined by rib intersections. The contiguous rib wall bounds a cavity. A multilayer sheet cap member with extending walls to engage the contiguous rib wall is positioned within the cavity. The engagement walls extend from individual sheet perimeter portions angularly oriented to the sheet. The ribs and cap member have pre-impregnated resin. Heating the cap member and ribs activates the resin and co-cures the composite structure.

Abstract: A method of manufacturing a multi-layer circuit board including preparing a laminated member formed of (i) a core circuit board having a circuit pattern thereon and (ii) a prepreg sheet having a through-hole filled with conductive paste, forming a laminated structure such that the laminated member is sandwiched by lamination plates, and applying heat and pressure to the laminated structure. According to this method, selecting a lamination plate that has a thermal expansion coefficient that is equivalent to that of a core circuit board will protect the conductive paste from distortion, thereby offering a high-quality multi-layer circuit board having a reliable connection resistance.

Abstract: The invention relates to a method for joining precured stringers to at least one structural component of an aircraft or spacecraft. A vacuum arrangement necessary for the joining is produced in two parts. In a first step, each precured stringer is covered in advance with a covering vacuum film. The stringers prepared in this manner are arranged on the structural component. Respective vacuum film strips are subsequently arranged on adjacent stringers and over an intermediate space between the adjacent stringers. With the use of a vacuum sealing means, the vacuum film strips and the covering vacuum films 8 form a continuous vacuum arrangement. The stringers are subsequently joined under pressurization to the structural component with the use of this vacuum arrangement.

Abstract: There are provided an adhesive-agent disposing step of disposing the adhesive agent, a first curing step of curing part of the adhesive agent disposed (including an adhesive-agent-disposition providing step of the present invention), a painting step of coating a paint on the works, and a heating step (a second curing step) of applying a heating treatment with a drying device. There can be provided a joining method of works that can ensure a high joining quality and productivity.

Abstract: A method of forming a piece from a composite material is disclosed in which a mandrel is used that reduces relative movement between the mandrel and the piece during the curing process.

Abstract: A three-ply product includes a particle board core assembled with a patterned vulcanized fiber sheet or layer on each surface. One of the vulcanized fiber sheets may have a preprinted decorative pattern provided thereon. The other vulcanized fiber sheet may also be decorative, or merely a plain sheet of vulcanized fiber. The product is useful for woodworking applications, and may be processed (i.e., stained, sanded, lacquered, etc.) like a natural wood product. Unlike prior vulcanized fiber processes, the process of making the vulcanized fiber sheets preprints a pattern, in a preprinting process, on the top sheets of cellulose paper plies.

Abstract: A method glues two plastic surfaces together with adhesion produced by a heat-activatable adhesive. The adhesive is a heat-activatable adhesive, which is based on i) at least one elastomer having a weight proportion of 30-70 wt. % ii) at least one reactive resin component having a weight proportion of 30-70 wt. %. At least one of the plastic surfaces that is to be glued is part of a substrate having a heat conductivity that is high enough to transfer the activation energy necessary for the adhesion to the heat-activatable adhesive.

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: A process for producing mosaics, tiles or various figures where the construction of these items retains the article or design inside the mosaic, tile or figure. The article or design may be of many different themes, such as underwater life including fish, shells and sea plants. Other themes might include, but not be limited to, trees, flowers, vegetables, fruits, etc. These finished mosaics, tiles or figures can be displayed anywhere that will allow the mounting of a tile such as in bathrooms, on walls, ceilings, floors, swimming pools (interior or exterior), etc.

Abstract: A composition is for use with fabricating a ceramic composite stiffening member that defines a T-section. The stiffening member includes a web portion, at least one flange portion, a radius region disposed between the web portion and the at least one flange portion, and a skin member that is secured to the at least one flange portion and the radius region. The composition is a pliable mixture of refractory particles, plasticizers, silica-yielding polymers, and solvents that is applied along the radius region.

Abstract: A continuous composite fiberglass sucker rod for connection between a pump and a pump drive has a rectangular cross section. End fittings having a rod receiving cavity are connected to the rod ends using a curable adhesive. The rod fitting is maintained in a vertical position with the cavity facing upwardly. The rod end portion is positioned in the cavity with the end at the bottom of the cavity. Curable adhesive is introduced into the cavity. A centralizer bushing is used to maintain alignment of the rod relative to the cavity. A portable heating device receives the fitting and rod end portion and enhances the curing process.

Abstract: A process for manufacturing stiffened structures (11) in composite materials formed by an outer coating (13) and a plurality of stiffeners (15) the cross-section of which has a closed form delimiting an inner opening (23), comprising the following steps: a) Providing a shaping tool (31); b) Providing auxiliary male tools (37) with an inert material inside them coated with membranes suitable for curing c) Providing stiffeners (15) in fresh or cured condition; d) Arranging the stiffeners (15) in the tool (31) and the auxiliary male tools (37) in their inner openings (23); e) Laminating the outer coating (13); f) Curing the stiffened structure (11) with high temperature and pressure; g) Removing the auxiliary male tools (37) after reducing their volume by withdrawing the inert material thereof; h) Separating the cured stiffened structure (11) from the tool (31). The invention also relates to the auxiliary male tools.

Abstract: This invention provides composite plastic articles and methods of making them. The articles can be fluidic or microfluidic devices having fluidic conduits and, optionally, pneumatic conduits that regulate flow in the fluidic conduits. The articles comprise a first substrate coated with a layer of a material that comprises, or onto which have been introduced, reactive groups. For example, the substrate can be a plastic coated with an oxide or a siloxane onto which hydroxyl groups have been introduced. These articles are covalently bonded with other articles comprising reactive groups on their surfaces, for example, polysiloxanes treated to have silanol groups. Certain articles have specified locations on their surfaces that are not bonded to the other piece. For example, the coating can be removed from these locations before bonding. Such locations can be useful as functional elements of various devices, such as valve seats in valves of microfluidic devices.

Abstract: A method for producing a fiber-reinforced composite member from prepregs of reinforcing fibers impregnated with a matrix resin, comprising placing the prepregs in a cavity of a molding die, cutting off excess margins of the prepregs along the edges of the cavity, and curing the matrix resin.

Abstract: A method of manufacturing a printhead for an inkjet print cartridge includes depositing a metal film on a mandrel; separating the metal film from the mandrel, mounting the metal film to a work holder, modifying the metal film while the metal film remains mounted on the work holder, laminating the metal film to a barrier material and semiconductor substrate to form a printhead, and applying heat to the printhead such that the printhead barrier layer is cured and the metal film is bonded thereto. Laminating the metal film to the barrier material includes preheating the barrier material and placing the metal film on the preheated barrier material.

Abstract: A heating and pressurizing apparatus (101), to which a circuit board (70) with electronic components (8) pre-bonded thereto via bonding elements (9) is carried in, is provided. The heating and pressurizing apparatus post-bonds the electronic component to the circuit board by heating and pressurizing the electronic component by a contact member (1211) having a heating device (122). By executing the pre-bonding and the post-bonding of the electronic components to the circuit board independently of each other, the time required for the post-bonding can be reduced, compared with the conventional case, and the productivity of the whole mounting line can be improved.

Abstract: Composite load-bearing rotating rings suitable for use in fan sections of gas turbine engines, and processes for their fabrication. Such a ring has at least a first portion defining an integral abutment surface adapted to abut and retain hardware of a rotating machine, at least a second portion defining an integral flange adapted to secure the ring to a support structure of the rotating machine, and an insert. Each of the first and second portions and the insert contains a polymer matrix material and a fibrous reinforcement material, and the fibrous reinforcement material within the insert is oriented predominantly in a circumferential direction of the ring for carrying both circumferential and radial loads during rotation of the ring.

Abstract: The present invention relates to processes for transferring a coating borne by a carrier onto at least one surface of the substrate of an optical article. Specifically, the invention relates to processes for transferring any kind of patterned layer having a refractive index profile from a carrier to the surface of an optical article. The invention allows for manufacture of optical articles presenting high transmittance, low haze, and excellent adhesion performances, and in particular vision corrective optical articles that are customized and optimized to the patient's individual requirements. The invention also contemplates optical articles made by such methods.

Abstract: To provide a method of manufacturing a material which can make a skeletal component as thin as possible to be contained in an insulating layer in a manufactured copper clad laminate and can securely prevent the direct contact between the nodular treatment surface of the attached copper foil and a skeletal component. In order to attain the object, here is adopted “a method of manufacturing a copper foil with an insulating layer 1 which method is a method of manufacturing a copper foil provided with a semi-cured insulating resin layer containing a skeletal component on one side surface of the copper foil, and is characterized in that: a first thermosetting resin layer 3 in an uncured or semi-cured state.

Abstract: Provided herein is a process for producing a layered sheet. The process involves preparing a cell dispersed urethane composition by a mechanical foaming method. The cell dispersed urethane composition is applied to a base material sheet and cured to produce a polyurethane foam layer of uniform thickness. A releasing sheet may be utilized to make the thickness of the polyurethane foamed layer uniform. Also, provided herein is a layered sheet produced by the above process. The polyurethane foamed layer may have spherical fine cells having an average cell diameter of 20 to 300 ?m. The polyurethane foamed layer may have a specific gravity of 0.2 to 0.5. The polyurethane foamed layer may also have a Asker C hardness of 10 to 50 degrees.

Abstract: A resin composition that is storable at ambient temperatures. The resin composition forms a cured resin when exposed to a curing agent and heated to a curing temperature that is relatively close to ambient temperature. The resin composition includes a crystalline resin component that is sandwiched between two non-crystalline resin components to provide a zone that is rich in crystalline thermosetting resin. The crystalline thermosetting resin has a melting point that is above ambient temperature, but below the curing temperature. The viscosity of the resin component changes from a high viscosity state to a low viscosity state when the temperature is increased from ambient temperature to the curing temperature.

Abstract: Provided is a composite film excellent in flexibility. The composite film comprises a first gas barrier film, a second gas barrier film and an adhesive layer between the first gas barrier film and the second gas barrier film, wherein the first gas barrier film comprises a substrate film, at least one organic layer and at least one inorganic layer; the second gas barrier film comprises a substrate film, at least one organic layer and at least one inorganic layer; and the adhesive layer comprises a dry lamination adhesive and a metal alkoxide.