The invention relates to a panel for constructing a floor or wall covering. The panel comprises a substantially planar top surface, at least one core layer composed of a composite material which core layer is provided with at least one cavity, and a bottom surface. The panel further comprises at least one pair of opposite edges, said pair of opposite edges preferably comprising complementary coupling parts configured for mutual coupling of adjacent panels.

A wall panel may have a rigid layer, a first insulation layer made from a two-part rigid urethane pour foam, and a second insulation layer made from a phase change material. The first insulation layer may be chemically bonded to the rigid layer and may also be bonded to the phase change layer. The first insulation layer may be positioned between the second insulation layer and the rigid layer. The rigid layer may be a finished surface or a veneer layer may be applied to the rigid layer.

An object of the present invention is to provide, for use in living environments, a decorative sheet that has excellent, easy cleanability and excellent impact resistance and from which dirt due to the adherence of a daily used contaminant, such as fine particle powder, that is not easy to clean is easily removed. The present invention provides a decorative sheet having a surface-protecting layer on the uppermost surface thereof, wherein (1) Ra(i)/Ra(ii) is 0.62 or more and 1.63 or less, the Ra(i)/Ra(ii) being calculated using an arithmetic average roughness Ra(i) measured along an arbitrary direction on the surface of the surface-protecting layer, and an arithmetic average roughness Ra(ii) measured along the perpendicular direction to the arbitrary direction.

A wall panel may have a rigid layer, a first insulation layer made from a two-part rigid urethane pour foam, and a second insulation layer made from a phase change material. The first insulation layer may be chemically bonded to the rigid layer and may also be bonded to the phase change layer. The first insulation layer may be positioned between the second insulation layer and the rigid layer. The rigid layer may be a finished surface or a veneer layer may be applied to the rigid layer.

A method for manufacturing a mineral wool board, comprising the following steps: providing mineral wool fibers having a fiber length of 50 to 800 μm; providing a binder comprising a mixture of liquid resin and mineral fillers having an average grain size d.sub.50 of 10 nm to 250 μm; gluing the fibers with the binder, and compressing the glued fibers using heat and pressure.

A method for manufacturing a mineral wool board, comprising the following steps: providing mineral wool fibers having a fiber length of 50 to 800 μm; providing a binder comprising a mixture of liquid resin and mineral fillers having an average grain size d.sub.50 of 10 nm to 250 μm; gluing the fibers with the binder, and compressing the glued fibers using heat and pressure.

The invention relates to a panel for constructing a floor or wall covering. The panel comprises a substantially planar top surface, at least one core layer composed of a composite material which core layer is provided with at least one cavity, and a bottom surface. The panel further comprises at least one pair of opposite edges, said pair of opposite edges preferably comprising complementary coupling parts configured for mutual coupling of adjacent panels.

A covering element includes a carrier plate including a mineral material, wherein the carrier plate is formed as a flat mineral carrier plate having a thickness between 3 and 15 millimeters (mm), complementary recesses and protrusions formed, respectively, on opposing lateral edges of the carrier plate, such that, in an assembled condition of two or more covering elements, the complementary recesses and protrusions are configured to engage with complementary protrusions and recesses, respectively, of another of the two or more covering elements, and a decor layer with a polymer and on a front side of the carrier plate. The décor layer includes at least at least one, color pigment-containing, printing layer.

A covering element includes a carrier plate including a mineral material, wherein the carrier plate is formed as a flat mineral carrier plate having a thickness between 3 and 15 millimeters (mm), complementary recesses and protrusions formed, respectively, on opposing lateral edges of the carrier plate, such that, in an assembled condition of two or more covering elements, the complementary recesses and protrusions are configured to engage with complementary protrusions and recesses, respectively, of another of the two or more covering elements, and a decor layer with a polymer and on a front side of the carrier plate. The décor layer includes at least at least one, color pigment-containing, printing layer.

This invention relates to a method for manufacturing a mineral wool board, comprising the following steps in the given order: providing mineral wool fibers having a fiber length of 50 to 800 μm; gluing the fibers with a liquid binder comprising phenolic resin, whereby the ratio of binder (based on the solids content of the resin of the binder) to mineral wool fibers is 5 to 30% by weight, and pressing the glued fibers using heat and pressure.