PROCESS FOR THE AQUEOUS IMPREGNATION OF GREEN WOOD WITH OIL-SOLUBLE METAL SALTS

摘要

PROCESS FOR THE AQUEOUS IMPREGNATION OF GREEN WOODWITH OIL-SOLUBLE METAL SALTSABSTRACT OF THE DISCLOSUREA process for impregnating green wood with oil-soluble metalsalts is described. The method comprises(a) contacting the green wood with an aqueous system com-prising(i) water,(ii) at least one oil-soluble metal salt of an organiccarboxylic acid, and(iii) at least one surfactantfor a period of time sufficient to enable the metal salt to penetrate into thewood, and(b) removing the wood from contact with the aqueous system.Good penetration of the metal salt into the green wood is realized by thismethod when conducted under vacuum, at atmospheric pressure or atelevated pressures. Preferably, the metal salt is a preservative such asfungicide, and the aqueous system also contains other desirable componentssuch as fire retardants, coloring agents and insecticides.