Wood preserving agent

C - Chemistry – Metallurgy – 09 – D

Patent

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C09D 5/14 (2006.01) A01N 47/04 (2006.01) B27K 3/50 (2006.01)

Patent

CA 1133655

ABSTRACT OF THE DISCLOSURE An agent for preserving wood and wood materials, comprises more than 65% by weight of at least one non-easily volatilizable organic solvent having a flash-point above 30°C, between 0.35 and 10% by weight of at least one fungicide which is soluble, or partly soluble, in the non-easily vola- tilizable organic solvent and, optionally,between 0.1 and 7% by weight of at least one insecticide which is soluble in the non-easily volatilizable organic solvent; the fungicide consists of a mixture of N,N-dimethyl-N'-phenyl-N'-(fluorodichloromethyl- thio)-sulphamide and N,N-dimethyl-N'-p-tolyl-N'-dichlorofluorome- thylthio)-sulphamide, in a weight ratio of between 25: 10 and 10 : 30. The wood preservative of the invention is stable during prolonged storage and does not cause any crystalline efflorescence or hazing on the wood surface which would impair the decorative effect of the treated surface.

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