A floor panel has a substrate and a decorative layer of wood veneer provided thereon having a thickness of 1 millimeter or less. The substrate has an average density of more than 750 kilograms per cubic meter. The floor panel is rectangular and oblong and comprises a pair of opposite short edges and a pair of opposite long edges. The floor panel, on at least said two opposite long edges, is provided with coupling means allowing that two of such floor panels can be coupled to each other in a vertical direction perpendicular to the plane of the coupled panels and in a horizontal direction in this plane and perpendicular to the respective edge. The wood veneer and/or the substrate immediately underneath the wood veneer is treated at least at the short edges with a fluoro copolymer or a polymeric methylene diphenyl diisocyanate.

A decorative panel including a substrate material and a decorative top layer. The decorative top layer is formed by at least one timber layer penetrated with a cured adhesive, and the timber layer has a wood structure with collapsed vessels having opposed walls, the opposed walls being glued together permanently by the cured adhesive.

An automatic machine for width gluing of wooden lamellas into laminated plates of optional dimensions according to the invention consists of a press and a glue application device and enables fast continuous gluing of wooden lamellas of optional lengths, widths and thicknesses into laminated plates also of optional dimensions. The press is characterized by a modular construction, which consists of innovative supporting framework segments with intermediate work modules in a sequential string, which together enable transport of wooden lamellas, their pressing and gluing in the same plane within the entire construction of the press. Each work module consists of a work table assembly, a pressure shoes assembly and a segment pushers assembly. Within these assemblies, innovative constructions of segment pushers, long pressure shoes and short pressure shoes are characteristic.

The present invention relates to adhesives which are characterized in that they cure in the absence of water and at room temperature with the formation of isocyanurate groups.

The invention relates to a sandwich element with a central layer (10) made of a foamed filler material, preferably plastic foam, and outer layers, wherein the outer layers are made of pressure panels (2, 3), preferably flat pressure panels, and pressure panels lying opposite each other are clamped against each other by means of clamping elements (4) which pass through the central layer (10), thereby compressing the central layer (10). The invention additionally relates to a method for producing such a sandwich element and to a support, in particular a buoyant platform, which is made of such sandwich elements, including the process of producing such a support.

The invention relates to a method and apparatus for activating an adhesive for composing veneers. A method for activating an adhesive for composing veneers according to an aspect of the invention comprises providing the adhesive on a surface of a veneer, and radiating the adhesive on the surface of the veneer. The method may comprise providing a reinforcing material on the adhesive; or providing an adhesive tape on the surface of the veneer, wherein the adhesive tape comprises adhesive coated or impregnated with a reinforcing material. The method may further comprise radiating the adhesive between the surface of the veneer and the reinforcing material.

Provided is a strand board with improved strength and water resistance. Reduction in productivity is prevented and characteristics of the strand board can be varied as desired while achieving certain strength and water resistance of the strand board. A strand board B is formed by stacking and laminating five strand layers 1 each formed by a large number of strands 5. The strand board B has substantially constant density distribution in the lamination direction of the strand layers 1. Three of the five strand layers 1 of the strand board B are high-density strand layers 1a having a higher density than the other strand layers 1, and the other strand layers 1 are low-density strand layers 1b.

A building panel with a surface layer including a wood veneer, a wood fibre based core and a sub-layer between the surface layer and the core. The sub-layer includes wood fibres and a binder. The surface layer has surface portions including material from the sub-layer. The surface portions including material from the sub-layer extend into the wood veneer.

A composite wood panel is manufactured from thin wood laminae cut from wood unsuitable for peeler logs or dimensional lumber. A cold set adhesive is applied to the wood laminae and they are formed into a randomly oriented mat that is cold rolled into a thin, pliable cold rolled stock that can be corrugated. A hot set adhesive may also be applied to the laminae to improve strength of the composite wood panel. The hot set adhesive is set in a hot press after the cold rolled stock is produced.

A decorative panel including a substrate material and decorative top layer, wherein the decorative top layer includes at least one timber layer, wherein the timber layer is a compressed timber layer with a permanent increased density as compared to an original timber layer, wherein the decorative panel is a square or rectangular floor panel which, at, at least one pair of opposite edges, or at both pairs, includes mechanical coupling allowing to couple two of such floor panels to each other such that a locking is created in a vertical direction perpendicular to a plane of the coupled panels, as well as in a horizontal direction perpendicular to a coupled edge and in the plane of the coupled panels, the mechanical coupling being in the substrate material.