BigPatents India

The present invention relates to a process for the production of a wood body having high durability, dimensional stability and surface hardness, characterized in that an untreated wood body is impregnated with an aqueous solution of A) an impregnating agent from the group consisting of 1,3-bis(hydroxymethyl)-4,5dihydroxylimidazolidin-2-one, 1,3-bis(hydroxymethyl)-4,5-dihydroxyimidazolidin-2one modified with a C1.5-alcohol, a polyol or mixtures thereof, 1,3-dimethyl-4,5dihydroxyimidazolidin-2-one, dimethylolurea, bis(methoxymethyl)urea, tetramethylolacetylenediurea, 1, 3 -bis(hydroxymethyl)imidazolidin-2 -one, methylolmethylurea mixtures thereof, and B) a catalyst from the group consisting of the metal or ammanium salts, organic or inorganic acids or mixtures thereof, and then hardened while maintaining humid conditions at elevated temperature.