A composite panel exhibiting high flexural strength while reducing mass as compared with conventional composite panels is provided. The improved panel includes a rigid frame having outer edges defining a perimeter of the panel and inner edges defining a perimeter of a structural filler chamber, wherein the frame has a thickness at its outer edges that is narrower than at its inner edges; first and second sheet-like material layers bonded to opposite sides of the rigid frame to define, together with the inner edges of the rigid frame, a volume of the structural filler chamber; and a structural filler disposed in the chamber to provide compressive strength between the sheet-like material layers.

A transparent weathering resistant foil for protection of various substrates against solar radiation contains at least two layers A and B, wherein the spectral transmittance of the layer A at any wavelength λ.sub.A is not more than 10%; wherein 270 nm≤λ.sub.A≤360 nm; and the spectral transmittance of the layer B at any wavelength λ.sub.B is not more than 10%; wherein 270 nm≤λ.sub.B≤370 nm. The foil can also contain at least two layers A and B; wherein the spectral transmittance of the layer A at any wavelength λ.sub.A is not more than 20%; wherein 270 nm≤λ.sub.A≤310 nm; and the spectral transmittance of the layer B at any wavelength λ.sub.B is not more than 10%; wherein 270 nm≤λ.sub.B≤370 nm.

A method to produce a veneered element, the method including applying a first layer on a substrate, applying a second layer on the first layer, applying a veneer layer on the second layer, pressing the first layer, the second layer and the veneer layer together to form a veneered element, wherein, after pressing, the second layer is transparent or translucent such that the first layer is visible through a crack, cavity, hole and/or knot of the veneer layer. Also, such a veneered element.

The present disclosure relates to a plastic-containing support for a decorated wall panel or floor panel, comprising a supporting material including a thermoplastic matrix material, in which a solid material with a particle size less than or equal to 800 μm is embedded, wherein the support has a length, a width and a thickness, wherein the support has a density gradient along its thickness from a bottom surface to a top surface arranged on the opposite side to the bottom surface in such a manner, that the density of the supporting material averaged over a specified width or a specified length of at least 5 mm, preferably at least 20 mm, from the bottom surface to the top surface initially declines and then increases again.

A cover board for use in a roofing system includes a core formed from recycled material. The core has a first major surface and a second major surface and the recycled material includes a plastic material. At least one region of the core has a concentration of plastic greater than a concentration of plastic within a remainder of the core.

A ceiling material body (1a) includes a substrate layer (2) formed from rigid urethane foam; a first fiber-reinforced layer (3) provided on an in-cabin side of the substrate layer (2); a second fiber-reinforced layer (4) provided on an out-cabin side of the substrate layer (2); a surface layer (5) provided on an in-cabin side of the first fiber-reinforced layer (3); and a back layer (6) provided on an out-cabin side of the second fiber-reinforced layer (4). The second fiber-reinforced layer (4) includes a glass paper (7) overlaying the substrate layer (2) and a glass mat (8) overlaying an opposite side of the glass paper (7) from the substrate layer (2).

A paper packaging material having a paper layer with a polyethylene coating on one surface, a biodegradable resin grid on the opposite surface to enhance its strength while maintaining reduced weight and a thermo-sealing resin, which eliminates the use of glues in the packaging process. The vegetal resin is made out of vegetable wax, acrylic styrene copolymer, demineralized water, water based silicone and natural fungicide.

A surface treated copper foil 1 includes a copper foil 2, and a first surface treatment layer 3 formed on one surface of the copper foil 2. The first surface treatment layer 3 of the surface treated copper foil 1 has a root mean square gradient of roughness curve elements RΔq according to JIS B0601:2013 of 5 to 28°. A copper clad laminate 10 includes the surface treated copper foil 1 and an insulating substrate 11 adhered to the first surface treatment layer 3 of the surface treated copper foil 1.

A rectangular panel has long and short edges, such that on each long edge and on each short edge, the panel has a coupling part, which allows the panel to be coupled to another similar panel.

A method for producing a multi-layered wet friction material includes providing a bottom layer, providing a top layer produced independently of the bottom layer from different materials, and bonding the bottom layer to the top layer. The bottom layer and the top layer may be produced from different formulations and supplied as raw papers. A formulation of the top layer may include twenty to sixty percent (20%-60%) filler, ten to forty percent (10%-40%) wood pulp, five to ten percent (5%-10%) aramid, and twenty-five to thirty-five percent (25%-35%) phenolic resin. A formulation of the bottom layer may include ten to fifty percent (10%-50%) filler, ten to forty percent (10%-40%) wood pulp, five to ten percent (5%-10%) aramid, five to fifteen percent (5%-15%) carbon, and twenty-five to thirty-five percent (25%-35%) phenolic resin.