METHOD OF WORKING OF WOOD AND WOOD ARTICLES Russian patent published in 1996 - IPC

FIELD: methods of wood-working. SUBSTANCE: wood or wood article is impregnated with monomer and then a two-stage polymerization of it is accomplished. In the process of polymerization wood is exposed to the action of a microwave field, in the first stage - at a radiation frequency of 20 to 150 GHz and exposure for 0.5 to 5 minutes, then at a frequency of 0.3 to 15 GHz and exposure for 5 to 20 minutes. Methylmethacrylate and/or styrene at a concentration in the article within 25 to 60 mass percent is used as mover, and polymerization is accomplished in a nitrogen-argon atmosphere, with the electric field lines arranged in parallel with the wood fibres. In this case a constant magnetic field with an intensity of 1 to 4 Oe is used, its field lines are also parallel to the wood fibres. EFFECT: facilitated procedure. 3 cl, 1 tbl