METHOD OF MODIFYING POROUS MATERIALS Russian patent published in 1997 - IPC

FIELD: chemically modified materials. SUBSTANCE: initial porous materials, for example, low- value wood, are impregnated with gaseous alkenes or their mixtures with monomers and/or oligomers, after which material is affected by fast electrons with energy 0.4-1 MeV in constant magnetic field with intensity 0.5-1.5 kV/cm. High-strength materials, including multilayer ones, resistant to acids, alkalis, and organic solvents are obtained. EFFECT: reduced cost of quality materials due to using low-value raw. 2 cl