Patent ID: 7494718

Claim:
A process for the production of a wood body, comprising impregnating an untreated wood body with an aqueous solution of A) an impregnating agent selected from the group consisting of a reaction product of 1,3-bis(hydroxymethyl)-4,5-dihydroxyimidazolidin-2-one with a C 1-5 -alcohol selected from the group consisting of methanol, ethanol, n-propanol, isopropanol, n-butanol, and n-pentanol, or a polyol selected from the group consisting of ethylene glycol, diethylene glycol, 1,2- and 1,3-propylene glycol, 1,2-, 1,3- and 1,4-butylene glycol, glycerol, and polyethylene glycols of the formula HO(CH 2 CH 2 O) n H, where n is from 3 to 20 and mixtures thereof, and B) a catalyst selected from the group consisting of ammonium salts, metal salts, organic acids, inorganic acids and mixtures thereof, and drying and then hardening at elevated temperature.