An amorphous structure layer is formed on a surface layer of a bonded portion of each of side brackets. A bottomed hole layer including a plurality of bottomed holes is formed on a surface layer of the amorphous structure layer. Each of the bottomed holes has a reverse-tapered shape, which has, between an opening portion and a bottom portion of each of the bottomed holes, a bulged portion having a larger inner circumference than the opening portion. An adhesive is injected into the bottomed holes. An outer circumferential surface of the bonded portion of each of the side brackets and an inner circumferential surface of an end portion of a center beam face toward each other with the adhesive interposed therebetween.

The invention relates to an outer coating of a ship's hull in the underwater area, wherein the coating comprises a bottom layer on the hull exterior, said layer being made of an adhesive or an ethylene-propylene-diene rubber and being particularly designed as a film, and a superimposed top layer made of an ultra high-molecular weight polyethylene.

The use of a fibre composite material W having a sandwich structure, constructed from: A) a thermoplastic material layer w, containing as components: a) a thermoplastic moulding compound A as a matrix, b) a ply made from reinforcing fibres B, and c) optionally additive C, wherein the ply of reinforcing fibres B is embedded in the matrix of the thermoplastic moulding compound A, and, in the production of the material layer w, the thermoplastic moulding compound A comprises at least one chemically reactive functionality, which reacts with chemical groups of the surface of the reinforcing fibres B; and B) a further thermoplastic layer T and/or a foam layer S, wherein said further layer T and/or S is permanently connected to the material layer w; provides increased mechanical stability for the production of moulded parts.

A structured body including: a formed body, the surface of which being formed of an underlying resin layer (1); and fine particles distributed on the underlying resin layer (1) on the surface of the formed body, wherein the structured body is characterized in that wax (3) is distributed on the surface of the underlying resin layer (1) together with fine particles (7), and the wax (3) is partly absorbed into the underlying resin layer (1).

A wet coating composition useful for coating a cellulosic fiber-based substrate is provided. The composition includes two aqueous emulsions. The first emulsion includes an oxidized paraffin/polyethylene wax and the second emulsion includes an ethylene/acrylic acid copolymer wax, ethylene/acrylic amide copolymer wax, ethylene/acrylic acid/acrylic amide copolymer wax or a mixture thereof. The oxidized paraffin/polyethylene wax has a surface energy less than or equal to 25 mN/m being substantially dispersive energy. The wet coating composition when dried forms a coating having a surface energy ranging from 20 to 60 mN/m being the sum of dispersive and polar energies. A process for treating a cellulosic fiber-based substrate with the wet coating composition, a substrate coated and articles including the coated substrate are also described. The process involves a heating step to allow migration of the coating towards a core of the cellulosic fiber-based substrate.

The present disclosure pertains to a window panel for a body structure of a vehicle, especially an airframe of an aircraft or spacecraft, including a first skin which extends over a first side of the panel to form an outer skin of the vehicle body structure; a second skin which extends over a second side of the panel to form an inner skin of the vehicle body structure; and a core, especially a foam core, located between and covered by the first and second skins in a sandwich structure. The window panel includes at least one window aperture formed through the first layer, the core, and the second layer. The core may be confined to or extends over a limited extent, region or part of the panel. Thus, the first skin and/or the second skin may extend over or cover a greater area of the panel than the core.

The invention relates to a composite material comprising an upper layer, a lower layer and means arranged so as to diffuse substantially transversely at least part of the kinetic energy induced by an impact on one of said layers, said means cooperating on both sides, with the upper layer and the lower layer. The diffusion means can consist in a network of interassembled base elements and of cavities, forming a three-dimensional structure. The invention also relates to a protection device comprising an insert, said insert consisting of a composite material according to the invention.

An acoustic liner for a turbine engine, the acoustic liner includes a support layer that includes a set of partitioned cavities with open faces, a perforated sheet that includes a set of perforations with corresponding inlets, the perforated sheet supported by the support layer such that perforations are in overlying relationship with the open faces to form paired perforations and cavities that define acoustic resonator cells, and a coating applied to the perforated sheet.

A fender for straddled vehicles according to an embodiment of the present invention includes a base made of a crystalline resin and disposed above a wheel, and a film which is in close contact with the back side of the base facing the wheel. The hardness of the surface of the base is lower than the hardness of the interior of the base. The hardness of the film is higher than the hardness of the surface of the base.

A panel (1) has a layered structure including: a first outer layer (2), an intermediate layer (3), and a second outer layer (4). The second outer layer (4) has a buckling stress lower than a buckling stress of the first outer layer (2), and the first outer layer (2) and the second outer layer (4) each have a compression failure stress higher than the buckling stress of the second outer layer (4).