Method of manufacture and treatment of wood with injectable particulate iron oxide
OwnerH. Richardsoninventor
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Abstract
A wood preservative includes injectable particles comprising one or more sparingly soluble iron salts. The iron-based particles are sufficiently insoluble so as to not be easily removed by leaching but are sufficiently soluble to exhibit toxicity to primary organisms primarily responsible for the decay of the wood. Wood or a wood product may be impregnated with iron-based particles of the invention.
Claims24
A wood preservative composition comprising injectable particles of sparingly soluble iron salts, wherein the particle size distribution of the sparingly soluble iron salts is such that the d98 is about 0.7 microns or less, and the d99.5 is about 1.5 microns or less.
A wood preservative composition comprising iron oxide particles, wherein the particle size distribution of the iron oxide particles is such that the d98 is about 0.7 microns or less, and the d99.5 is about 1.5 microns or less.
A wood preservative composition comprising:
- a liquid carrier;
- and
- injectable solid iron oxide particlulates coated with an organic biocide.
A method of preserving wood comprising:
- contacting wood with a wood preservative composition comprising an aqueous solution of injectable particles of sparingly soluble copper salts and injectable particles of sparingly soluble iron salts.
Dependencies are inferred from the claim text.