Kronotec Ag

Swiss Krono Tec Ag

Dirk Grunwald

Norbert Kalwa

Joachim Hasch

Krzysztof Przygodzki

Stanislaw Dobras

Miroslaw Janiszewski

Joachim ProfDr Hasch

Johann Bitzl

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.

Method for reducing the emission of aldehydes and volatile organic compounds of wood materials

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.

Building slab, floor panels in particular, and method of manufacturing the same

Growing community of inventors

Braunschweig, Germany

Dirk Grunwald