Abstract: The present invention relates to a method for the production of wood material made of fragmentation products containing lignocelluloses, wherein these wood materials have a reduced emission of volatile organic compounds, aldehydes, particularly formaldehyde. Specifically, the invention relates to methods for the production of wood materials having reduced emission of volatile organic compounds and aldehydes, wherein a certain combination of compounds is utilized in order to prevent the emission of volatile organic compounds and aldehydes, particularly formaldehydes, from the produced wood material. The present invention further relates to wood material that can be produced according this method, particularly OSB panels, particle board, and MDF panels. Finally, the present invention provides compositions suitable in the treatment of wood material to reduce the emission of aldehydes, particularly formaldehyde and volatile organic compounds.

Abstract: A derived timber material board, having at least three layers made of a derived timer material is provided. At least a middle layer thereof is made of a mixture of derived timber material and a foamed plastic. The middle layer additionally has at least one foamed natural material.

Abstract: The present invention relates to a method for the production of wood material made of fragmentation products containing lignocelluloses, wherein these wood materials have a reduced emission of volatile organic compounds, aldehydes, particularly formaldehyde. Specifically, the invention relates to methods for the production of wood materials having reduced emission of volatile organic compounds and aldehydes, wherein a certain combination of compounds is utilized in order to prevent the emission of volatile organic compounds and aldehydes, particularly formaldehydes, from the produced wood material. The present invention further relates to wood material that can be produced according this method, particularly OSB panels, particle board, and MDF panels. Finally, the present invention provides compositions suitable in the treatment of wood material to reduce the emission of aldehydes, particularly formaldehyde and volatile organic compounds.

Abstract: A building board, in particular a flooring panel, with a core comprising at least one upper layer and one lower layer of wood fibers or wood chips glued with an adhesive and pressed to one another, which is provided on at least its top side with a pattern that is covered with a sealing coat and in which sealing coat a structure corresponding to the pattern is embossed, is characterized in that at least the chips of the upper layer are glued with an adhesive having thermoplastic properties, and the upper layer has recesses formed at least directly beneath the pattern.

Abstract: A building board, in particular a flooring panel, with a core comprising at least one upper layer and one lower layer of wood fibers or wood chips glued with an adhesive and pressed to one another, which is provided on at least its top side with a pattern that is covered with a sealing coat and in which sealing coat a structure corresponding to the pattern is embossed, is characterized in that at least the chips of the upper layer are glued with an adhesive having thermoplastic properties, and the upper layer has recesses formed at least directly beneath the pattern.

Abstract: The invention relates to phenol urea/melamine formaldehyde copolymers which can be obtained through the condensation of an aqueous precondensate of phenol and/or phenol derivatives with an aqueous precondensate of urea and/or urea derivatives and/or melamine and/or melamine derivatives and formaldehyde in the presence of an anionic ion exchanger and a cationic ion exchanger. Thereby in the first step urea and phenol are reacted with formaldehyde in separate reactions. The reaction is regulated by time, pH value and temperature such that only methylol ureas or methylol phenols are formed. In the next step the two reaction mixtures are combined and come into contact with the immobilized ion exchanger (which can also be used catalytically).