Patent ID: 7846508

Claim:
A method for the treatment of the surfaces of wood or woodbase materials, which comprises: a) impregnating wood, woodbase materials or wood materials for the production of woodbase materials with a curable aqueous composition which comprises at least one crosslinkable compound having a molecular weight of at most 400 Daltons, which are selected from α) compounds V which have at least two N-bonded groups of the formula CH 2 OR, where R is hydrogen or C 1 -C 4 -alkyl, and/or a 1,2-bishydroxyethane-1,2-diyl group bridging two nitrogen atoms, and γ) reaction products or mixtures of the compound V with at least one alcohol which is selected from C 1 -C 6 -alkanols, C 2 -C 6 -polyols and oligoalkylene glycols; where the conditions of impregnation are chosen so that the amount of curable constituents of the aqueous composition which is absorbed is at least 5% by weight, based on the dry mass of the untreated wood or woodbase material, b) treating the material obtained in a) at elevated temperature and, optionally, further processing to give a woodbase material; and c) treating at least one surface of the wood or woodbase material to be treated with a surface treatment composition comprising a polymeric binder and/or prepolymer curing in the form of a polymeric binder and, optionally, drying of the surface treatment composition.