| abstract |
The invention relates to a method for impregnating lignocellulosic materials, in particular, wood, wood materials or materials for manufacturing wood materials, with effect agents. The invention also relates to novel compositions, containing effect agents. Said method comprises the steps of a) impregnating the lignocellulosic material with a fluid formulation, which contains at least one effect agent in a dissolved or dispersed form, b) impregnating said material, during or after step a), with a hardenable aqueous composition, which contains at least one cross-linkable compound, selected from &agr;) low-molecular weight compounds V, having at least two N-bonded groups of formula CH 2 OH, wherein R=hydrogen or C 1 -C 4 alkyl, and/or one 1,2-bishydroxyethan-1,2-diyl group, bridging two nitrogen atoms, &bgr;) precondensates of the compound V and ϝ) reaction products or mixtures of the compound V with at least one alcohol, selected from C 1 -C 6 alkanols, C 2 -C 6 polyols and oligoalkylene glycols, and c) treating the material obtained in step b) at an elevated temperature. |