Patent ID: 7858203
Filing Date: 2010-12-28
Classification: B27K,C08K,C08L,Y10T

Abstract:
1. A method for impregnating lumber, comprising submerging a piece of lumber in a polymerizable furfuryl alcohol monomer mixture, said mixture comprising water, furfuryl alcohol, a stabilizer and an initiator, wherein the stabilizer is selected from the group consisting of sodium carbonate, sodium bicarbonate, sodium citrate, phosphates and water-soluble lignin derivatives, and the initiator is selected from the group consisting of maleic anhydride, phthalic anhydride, maleic acid, malic acid, phthalic acid, benzoic acid, malonic acid, ascorbic acid, boric acid, citric acid, zinc chloride, aluminum chloride, and combinations thereof, applying a pressure of 1 bar or more in a pressure step, and curing the piece of wood in a curing step.