METHOD FOR PRESERVING WOOD METALS IN WOOD ESSENTIAL BY COMPLEXING FOR MICROBIAL GROWTH

摘要

PCT No. PCT/FI92/00293 Sec. 371 Date Apr. 29, 1994 Sec. 102(e) Date Apr. 29, 1994 PCT Filed Oct. 30, 1992 PCT Pub. No. WO93/08971 PCT Pub. Date May 13, 1993The invention concerns a method and a preservative for protecting wood against decay. According to the method wood is treated with a wood preservative capable of preventing the growth and spread of fungi, said preservative containing at least one complexing agent which binds at least a portion of those metals, typically iron and manganese, naturally occurring in wood that are essential to the growth of fungi. The complexing agents employed can be, e.g., ethylenediaminetetra-acetate, ethylene diamine-di-o-hydroxyphenylacetate a polyphospate or a siderophore produced by a microorganisms. The wood preservative used in the method is water-borne and specific to the decay fungi attacking wood.