A wood preservative composition comprising 4.5-dichloro-2-octylisothiazol-3 (2H)-one, a method of treating a wood substrate therewith, and a wood product produced therefrom are provided. The wood preservative composition comprises at least 10% by weight of 4.5-dichloro-2-octylisothiazol-3-one (DCOI) based on the total weight of the composition, at least 10% by weight of a non-polar organic solvent based on the total weight of the composition, and at least 1% by weight of a polar organic solvent based on the total weight of the composition. A weight ratio of the non-polar organic solvent to the polar organic solvent is in a range of 80:1 to 1:8.

A method for treating wood packaging materials using Radio Frequency heating includes the steps of heating wood packaging materials using RF heating and applying a pressure before the heating or incrementally applying a pressure during the heating until a temperature of the wood packaging materials reaches at least 60 C. and that temperature is maintained for at least 1 minute.

The present invention relates to combinations of zinc pyrithione and food-approved antimicrobials which provide a synergistic antimicrobial effect. The food approved antimicrobials are selected from sodium sulfite, sodium bisulfite, potassium metabisulfite, potassium sulfite, calcium sulfite, calcium hydrogen sulfite, potassium hydrogen sulfite, sodium nitrate, potassium nitrate, and lysozyme. These combinations are useful for the protection of any living or non-living material, such as food, crops, plants, fruits, wood, wood products, leather, natural or synthetic textile, fibers, non-wovens, technical textile, plasticized materials and non-plasticized thermoplastics as polypropylene, polyvinylchloride, etc. . . . , paper, wall paper, insulation material, laminates, amino moulding compounds, paints and coatings, fabrics, floor coverings, synthetic fibres like plasticized polymers, hessian, rope and cordage and other biodegradable materials against deterioration due to the action of microorganisms such as bacteria, fungi, yeasts, algae, and the like. Also, the present invention relates to compositions comprising a combination of zinc pyrithione and said food-approved antimicrobials; in respective proportions to provide a synergistic antimicrobial effect.

Techniques and products are described for coloring acetylated wood products. An acetylated wood product can be impregnated by a coloring medium within a chamber and the colorant or colorants contained within the coloring medium can be fixed to the acetylated wood product by the application of heat or by application of radio frequency radiation to color any external surface or interior region of the acetylated wood product which has been impregnated by the coloring medium.

The present invention relates to a wood preservative formulation comprising a biocidal agent which is a copper or zinc ion complexed with an amino compound selected from the group consisting of ammonia, a water soluble amine or alkanolamine and an aminocarboxylic acid and a stabilizer, as well as to aqueous treatment solutions comprising such a formulation and methods of treating wood or other cellulosic material utilising said formulation.

A composition for treating cellulosic materials is provided. The composition comprises a dispersion of micronized additives. The dispersion comprises additive particles with diameters in the range of 0.001 to 25 microns. Also provided is a method for the application of the additive-containing composition to wood, as well as wood products which have been treated with the composition.

The present invention relates to functionalized polyorganosiloxanes or silanes for the treatment of lignocellulosic materials.

Disclosed herein are compositions including a dispersion of solid particles of a substantially insoluble copper compound, and an organic biocide, wherein at least 20% of all particles of the composition have a particle size greater than 25 microns. Also disclosed herein are methods of making and using the same.

According to the present invention there is provided a method of treating timber with a creosote-containing preservative formulation adapted for use at substantially ambient temperature. The formulation comprises: creosote; one or more surfactants such that when diluted with a predetermined quantity of water, the creosote is present as an oil-in-water macroemulsion or microemulsion; and optionally, an anti-foaming agent and/or a fire retardant. It is found empirically that the inventive concentrate allows for the use of creosote, a known-effective biocide, without many of the drawbacks inherent in such use.

A wood preservative composition and method for preserving wood by contacting wood with said composition comprising a polyurethane polymer, non-aqueous solvents, and a wood preservative active.