Abstract:
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.
Abstract:
A process for treating dimensioned wood, dimensioned lumber or dimensioned timber (‘timber’) or veneer or particle based products or reconstituted wood products or other cellulosic materials (‘product’), said process comprising or including impregnating the timber or product to its core with a water based biocidal and/or other water based composition (‘preservative’) whereby the uptake is less than 80 L/m3. The process includes pressure variations.
Abstract translation:用于处理尺寸的木材,尺寸的木材或尺寸的木材(“木材”)或单板或基于颗粒的产品或复原木制品或其他纤维素材料(“产品”)的方法,所述方法包括或包括将木材或产品浸渍到其核心 具有水基杀生物和/或其它水基组合物(“防腐剂”),由此摄取量小于80L / m 3。 该过程包括压力变化。
Abstract:
Apparatus and method for treating by injecting a fluid treatment material into the bodies of porous structures such as those formed from concrete, brick, stone, marble, and wood. The apparatus for use in the method includes an applicator head having an inner chamber and an outer chamber surrounding the inner chamber both of which chambers are connected with a vacuum source. The inner chamber is also connected with a source of pressurized liquid treatment material. The method is non-invasive in that the fluid treatment material impregnates the porous structure without the need to break open, destroy, repair, or replace any part of the structure, and includes the steps of engaging the structures with the applicator head, drawing a vacuum on at least the outer chamber to secure the applicator head to the structure, and supplying the pressurized liquid treatment material to the inner chamber to and onto the surface of the structure to impregnate the structure to be treated.
Abstract:
A method of treating wood or other materials to deter animals, including birds, from chewing and pecking on the materials and to isolate toxic chemicals from the environment. The method includes preparing a basic composition which has isophorone and an epoxy resin and an epoxy catalyst and from 5 to 50 percent by weight of polyvinyl chloride. The basic composition is mixed with a polymer hardener to form a wood treating composition for wood or other materials which are impregnated with the wood treating composition under pressure to form a material resistant to animal chewing and pecking thereon and which simultaneously forms a shell or coating on the material to prevent leaching of the wood preservative from the wood. The process may include mixing the treating composition with a wood preservative.
Abstract:
A method for drying wood based materials includes applying a treatment including a first chemical, such as a solvent, to a wood based material. At least part of an atmosphere is evacuated from around the wood based material. The wood based material is exposed to electromagnetic radiation to evaporate at least a portion of the first chemical.
Abstract:
An alkyl dimethyl benzyl ammonium saccharinate is put into solution with a water soluble alcohol, such as ethanol, and subsequently mixed with water to form a aqueous solution for the treatment of wood to protect it from attacks by fungus, insects and other pests or to waterproof the wood. Preferably this saccharinate is applied by pressure to the wood after the cells of the wood have been evacuated in a vacuum. A process for making this saccharinate water soluble is disclosed which involves dissolving the saccharinate in a water soluble alcohol and then mixing the alcohol with water at about 150° F. This aqueous solution can then be used to treat wood. The alkyl dimethyl benzyl ammonium saccharinate can be put into solution with either a myristamine oxide or lauramine oxide and then mixed with alcohol or glycol. Boric acid can be added to the solution to prevent the corrosion of nails in any wood that is treated.
Abstract:
A wood preservative includes injectable particles comprising one or more sparingly soluble copper salts. The copper-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. Exemplary particles contain for example copper hydroxide, basic copper carbonate, copper carbonate, basic copper sulfates including particularly tribasic copper sulfate, basic copper nitrates, copper oxychlorides, copper borates, basic copper borates, and mixtures thereof. The particles typically have a size distribution in which at least 50% of particles have a diameter smaller than 0.25 μm, 0.2 μm, or 0.15 μm. At least about 20% and even more than 75% of the weight of the particles may be composed of the substantially crystalline copper salt. Wood or a wood product may be impregnated with copper-based particles of the invention.
Abstract:
Soluble copper(I)-amine complexes, particularly copper(I)-ammonia complexes and copper(I)-monoethanmolamine complexes, are useful injectable wood preservatives. Wood treated with the copper(I)-amine complexes contains less amines, and is less corrosive to metals, than woods treated with the prior art copper(II)-amine complexes. A method of preparing an aqueous wood preservative that includes soluble copper(I) complexes comprises reacting a solution comprising a copper(II)-amine complex with metallic copper to form a copper(I)-amine complex. One aspect of the invention comprises injecting a solution comprising a copper(I)-amine complex into wood and allowing the copper(I)-amine complex to precipitate within the wood.