Abstract: Preservative compositions for wood products is described. The compositions include at least one boron-containing material, such as but not limited to boric anhydride, and at least one silane-containing material, such as but not limited to methyltrichlorosilane. Optionally, at least one solvent, such as tetrahydrofuran, pentane, or water, may also be employed in the compositions. The compositions impart protection to the treated wood products, especially damage caused by exposure to water and insects.

Abstract: The present invention relates to an organo-functional polysiloxane of formula (1) wherein each R1 is independently selected from alkyl or aryl radicals, each R2 is independently selected from hydrogen, alkyl or aryl radicals, n is selected so that the molecular weight for the organo-functional polysiloxane is in the range of from 400 to 10,000, R3 is a bivalent radical or —O—W—(X)z is hydroxy or alkoxy, z is 1, 2 or 3 and X is a reactive functional group for reacting with amine radicals and wherein 0 to 90% of —O—R3—(X)z is hydroxy or alkoxy

Abstract: A method for preserving wood which comprises contacting the wood with a complex of a cationic monomeric or polymeric biocide and an anionic monomeric or polymeric biocide. Insoluble complexes may solubilized in water in the form of an emulsion or microemulsion by adding a nonionic and/or amphoteric surfactant and/or aqueous cosolvent to the complex. Suitable cationic biocides are those that contain functionalities such as amidine, guanidine, biguanide, quaternary, phosphonium, sulfonium and gemini quaternary functionalities. Suitable anionic biocides include: phenolics; saturated, unsaturated or substituted carboxylates; organomercaptide; tetrathiocarbonates; cyanodithioimidocarbamates; dithiodialkylcarbamates; anionic oxides of transition metals; aminocarboxylic acids; aminoorganophosphonic acids; monoalkyl phosphates; dialkylphosphates; and substituted or unsubstituted 2-hydroxy-2,4,6-cycloheptatrianone.

Abstract: A furan polymer impregnated wood which comprises wood impregnated with a polymerizable furfural alcohol monomer solution containing at least water, stabilizers, and furfuryl alcohol, and at least one further compound selected from the group consisting of anhydrides, acids and combinations thereof is described. A method for preparing a furan polymer impregnated wood and uses thereof is also described.

Abstract: This invention relates to copper complexes that significantly reduce the decay of wood, cellulose, hemicellulose, and lignin caused by fungi. A process for treating such materials with these copper-containing anti-fungal agents is also disclosed.

Abstract: Extrusion coating of a removable thermoplastic material onto freshly painted (non-fully cured paint) surfaces has been found to be an effective method for providing protection against damage during handling, and blocking during stacking, enabling handling of the substrate shortly after painting. Furthermore, the extrusion coating allows the paint to dry and cure on porous and non-porous substrates.

Abstract: The heat storage capacity of natural cellulosic products is increased by injecting nucleating products and/or heat storing material into unfilled cells thereby increasing the amount of material that can undergo phase change for transferring latent heat.

Abstract: An aqueous water repellent useful in the treatment of substrates of lignocellulose-origin materials or the like is characterized by comprising the product of co-hydrolytic condensation of (A) 100 parts by weight of an organosilicon compound having the formula: (R1)a(OR2)bSiO(4-a-b)/2??(1) wherein R1 is alkyl, R2 is alkyl, 0.75?a?1.5, 0.2?b?3 and 0.9<a+b?4, and (B) 0.5-49 parts by weight of an amino-containing alkoxysilane having the formula: R3R4NR5—SiR6n(OR2)3-n??(2) wherein R3 and R4 are H or alkyl or aminoalkyl, R5 is a divalent hydrocarbon group, R6 is alkyl, and n is 0 or 1, or a partial hydrolyzate thereof in the presence of an organic acid or inorganic acid.

Abstract: A wood product is made from treating wood with two solutions, in series, including a penetrating solution and a topcoat composition. The penetrating solution is made up of boric acid, a metallocene catalyst, a free radical initiator, a first film-forming polymer and an adhesion promoter. The topcoat includes a continuous film-forming polymer. Application of the penetrating solution to the wood gets the solution into the wood to cross-link boric acid with cellulose fibers, then the topcoat forms the continuous film. The film seals in the penetrating solution so that it does not leach out during subsequent exposure to water and weather, allowing soluble salts such as borax to migrate and infiltrate deeper into the wood. Microbiological growth is prevented by several mechanisms.

Abstract: Wood products, specifically wood commonly used in construction including dimension lumber, pressure treated pine, composite wood materials such as plywood, particle board, and wafer board, and samples of paper and fabric were variously treated with concentrations of sodium silicate (Na2O.SiO2) also known as water glass. Cellulosic materials including dimension lumber, plywood, particle board, wafer board, paper, and fabric were treated with sodium silicate (Na2O.SiO2) in concentrations ranging from 400-0.04 g Na2O.SiO2/kg water. To overcome the disadvantages of sodium silicate, sodium silicate treated samples were further treated to convert the water soluble sodium silicate to a water insoluble form, thereby overcoming the disadvantages of water solubility. and rendering the material effective for internal and external uses.

Abstract: A process for reducing the rate of deterioration of wood that includes contacting the wood with an aqueous alkanline colloidal silicon-containing slat composition that is supersaturated with a boron-containing salt. The contacting may be at ambient or elevated temperature and pressure. The composition is an aqueous colloidal silicon-containing salt that is supersaturated with a boron-containing salt and optionally includes an aluminum salt and a preservative. The composition is made by mixing the boron-containing salt with a colloidal, aqueous mixture of a silicon-containing salt and optionally adding the aluminum salt and the preservative. The process is performed under conditions that result in a supersaturated solution of the boron-containing salt. Wood treated with the composition appears to be resistant to insects, rot, UV deterioration, fire, and other environmental insults. The wood also appears to have increased strength.

Abstract: Disclosed is an accelerated petrifaction process of lignocellulose materials, including the step of impregnating with an aqueous solution an alkaline hydroxide and a soluble silicate, under pH conditions that permits its partial neutralization and insolubilization of the salts in situ in the interior of the lignocellulose material by the action of acid groups present in the lignocellulose material and the acidic action of carbon dioxide present in the surrounding air.

Abstract: A method of performing an impregnating treatment on a resin-containing wood substrate using a fluid comprising the steps of providing the wood substrate, contacting the wood substrate with said fluid, and maintaining contact between the wood substrate and the fluid for a time period sufficient to obtain the desired penetration wherein the fluid is a wood protectant with carbon dioxide added thereto.

Abstract: A furan polymer impregnated wood which is uniform in colour and density throughout the treated zone. In order to obtain the polymer impregnated wood, a parent wood has been impregnated with a mixture containing polymerizable organic compounds of at least furfuryl alcohol and one further compound. The invention also relates to a method for preparing a furan polymer impregnated wood and uses thereof.

Abstract: A process for the manufacturing of longitudinal profiles such and tongue and groove on boards wherein the process includes the steps; a) Moulding a substantial part of the profile cross-section by means of milling with a milling tool. b) Fine moulding undercuts in at least the groove of the board by means of broaching utilising at least one broaching tool.

Abstract: A method of determining the optimal amount of treatment chemical to use in a pressure-treatment process of a wood product includes providing the dry weight of solids of a treatment chemical solution per volume of wood product required to sufficiently pressure treat a wood product; measuring temperature of the treatment chemical solution (“solution”); measuring specific gravity of the solution; determining percent solids for the solution using a hydrometer table; determining the volume of the solution per volume of wood product required to sufficiently pressure treat wood product based on the specific gravity, the percent solids, weight of water per volume, and the dry weight of solids of a solution per volume of wood product; and determining the volume of the solution required based on volume of wood product to be treated and the volume of the solution per volume of wood product.

Abstract: The present invention relates to wood which contains a sorbic acid store and to processes for producing the sorbic acid store in the wood or on the surface of the wood. The present invention also relates to a process for using sorbic acid and its salts for protecting wood from microbially induced degradation.

Abstract: A process for treating wood and wood products is disclosed. Wood is impregnated under pressure with soybean oil or a mixture of vegetable oils with soybean oil, which oil is caused to polymerize within the wood. The polymerized oil is effectively fixed within the wood. The oil may be treated in advance of impregnation to initiate polymerization. Further, the wood may be surface treated with a more fully polymerized coating of oil. Pressure and vacuum may be applied in selected sequence to promote impregnation, and heat, blowing air, oxygen, Ultraviolet light, and other agents may be employed to promote polymerization of the treated wood within the pressure chamber during the impregnation process or outside of the pressure chamber after impregnation. Additional additives may be used to prevent pest infestations and the growth of fungi or to promote the migration of the oil into the wood.

Abstract: A method of preventing re-swelling of a compressed wooden blank, includes the steps of: a) providing a blank of compressed wood; b) exposing the blank to a reduced gas pressure of at most 0.5 atm; c) submerging the blank in a volume-stabilising composition containing a hydrophobic base component and an additive which is compatible with the hydrophobic base component and which includes one or more hydrophilic groups chosen from carboxyl-, hydroxy- and amino groups; d) exposing the blank to a higher pressure than in step b) over a predetermined period of time while keeping the blank submerged in the volume-stabilising composition; and e) removing the blank from the composition. Steps b) and step c) are carried out simultaneously.

Abstract: Water resistant wood composition boards and methods of making the boards by coating or impregnating the panels with a solvent soluble, further curable, partial condensation product of a methyltrialkoxy silane or a phenyl trialkoxy silane or mixtures thereof or ladder-type organosilsesquioxane polymers.

Abstract: A process for the manufacturing of surface elements (1) which comprises a decorative upper layer (2) and a supporting core (5). A supporting core (5) with a desired format is manufactured and provided with an upper side (1′) and a lower side (4). The upper side (1′) of the supporting core (5) is provided with a décor , by for example printing, which décor (2′) is positioned after a predetermined fixed point on the supporting core (5). The upper side (1′) of the supporting core (5) is provided with a protecting, at least partly translucent, wear layer (2″) by for example spray coating, roller coating, curtain coating and immersion coating or by being provided with one or more sheets of &agr;-cellulose impregnated with thermosetting resin or lacquer.

Abstract: The impregnating or extracting treatments of resin-containing wood substrate using a resin-soluble supercritical fluid as delivering or extractive solvent medium problems due to exudation of resin from the wood substrate at pressure release necessary before the termination of the treatment are avoided or reduced by displacing at least partially the supercritical fluid by a fluid of relatively low solubility in the resin before pressure release down to atmospheric pressure is terminated, thereby the total process time can be substantially reduced.

Abstract: The present invention provides for wood based panels (e.g., OSB or plywood) that are termite resistant, fungal resistant, or a combination thereof; and methods of manufacturing the same.

Abstract: A method for retarding the deterioration rate of acidic paper is disclosed. The method includes placing an acidic paper article in a polymer film enclosure having a reservoir of deacidifying agent. The deacidifying agent migrates over time to the paper article in an amount sufficient to retard the deterioration rate of the paper. The method can further include placing in the polymer film enclosure a carrier material having a second reservoir of deacidifying agent. An article for retarding the deterioration rate of acidic paper is also disclosed. The article includes a polymer film enclosure having a reservoir of deacidifying agent. The polymer film enclosure is capable of enclosing an acidic paper article. The deacidifying agent is capable of migrating over time to the acidic paper article enclosed therein in an amount sufficient to retard the deterioration rate of the paper. The article can further include a carrier material having a reservoir of deacidifying agent.

Abstract: Provided is a method of plating a non-conductive product comprising the steps of: forming a coating film on a surface of the non-conductive product with a conductive paint having the following composition of solid ingredients: (a) a resin vehicle in 20 to 80 weight %, and (b) a conductive whisker in 80 to 20 weight %; and executing electroless plating on a surface of the coating film. Also provided are products produced by this method.

Abstract: Solvent-free coating materials and treating agents used as water-based wood or material protective agents containing emulsifiable binding agents, quaternary ammonium compounds and optional additional active agents. The wood or material protective agents are non-flammable and enable a uniform distribution of the binding agent and the quaternary ammonium compounds in the substrates. As a result, the quaternary ammonium compounds function as a dissolving mediator for the binding agents which are dispersed in water without opacifying effects and are used as a biocide. The agents can additionally absorb water-insoluble organic biocides without impairing the homogeneity or stability of the formulation of the homogeneity of the distribution in the substrate.

Abstract: A method of preserving waterlogged materials and more specifically, preserving artifacts that have been submerged in water for long periods of time. A method of treating waterlogged materials that have been subjected to preservation techniques using polyethylene glycol as the preservative, and a method of restoring such materials from the deleterious effects of the glycol.

Abstract: Pressure impregnation methods for preserving wood. The impregnant combines a wood preservative with a wax-surfactant-water emulsion. A cationic surfactant component made up of two different surfactants is preferred.

Abstract: The wood fiberboard of the present invention comprises wood fibers which have been subjected to an acetylation treatment and wood fibers which have not been subjected to an acetylation treatment bonded together by a binder resin, wherein the content of the wood fibers which have been subjected to an acetylation treatment is 35 to 90% by weight of the total amount of wood fibers which have been treated to an acetylation treatment and wood fibers which have not been subjected to an acetylation treatment.

Abstract: The present invention provides certain 3-aryl-5,6-dihydro-1,4,2-oxathiazines and their oxides, useful for the long-term preservation of wood and composite wood materials against wood damaging and wood destroying materials. The present invention also provides compositions containing these 3-aryl-5,6-dihydro-1,4,2-oxathiazines and their oxides, and a suitable vehicle therefor. A method of preserving wood is also disclosed in which a fungicidally or bactericidally effective amount of the present 3-aryl-5,6-dihydro-1,4,2-oxathiazines and their oxides, are applied to the wood substrate to be protected.

Abstract: A fixation process for chemically treated wood which comprises transferring wood which has been treated with one or more chemical protectants into a fixation vessel; applying a treatment volume of water to the wood in batches or a continuous stream, collecting the water after application to the wood so that it can be used to prepare protectant impregnation solution and removing the wood from the fixation vessel.

Abstract: It is to provide a method for laminating a woody fiberboard in which woody fiberboards are laminated with increasing the strength thereof, the laminated woody fiberboard is processed into a prescribed shape and the strength of the processed article is increased, so as to complete the product. The method comprises the steps of: molding wood chips using an adhesive as a binder, to produce a woody fiberboard having a prescribed thickness; impregnating or coating a single board of the woody fiber board with a polyurethane series primer, followed by drying; laminating by adhering two or more of the dried woody fiberboards with adhesive; processing the laminated woody fiberboard by a cutting blade into a prescribed shape; impregnating or coating the processed article with a polyurethane series primer followed by drying; and impregnating or coating the dried article with one or more of a urethane series resin, a melamine series resin, a polyester series resin and a lacquer, so as to finish the product.

Abstract: A method for preserving wood that includes impregnating the wood with a wood preservative agent based on one or more compounds of at least one metal of the 1st and/or 2nd subgroups of the periodic system and fixing the metal(s) for purposes of reducing the danger of leaching. The wood is (i) impregnated with a preservative containing a water-soluble zinc compound or (ii) wood that has already been impregnated with a zinc-free preservative or one that contains at least one metal compound of the 1st and/or 2nd subgroups is impregnated with a second preservative that contains at least one water-soluble zinc compound, and wood impregnated in accordance with (i) or (ii) is impregnated with an aqueous solution of a salt of trimercapto-s-triazine (TMT), dithiocarbamate or trithiocarbonate.

Abstract: Antimicrobial activity is imparted to the surface(s) of an apparatus or article by polymerizing tert-butylaminoethyl methacrylate in the presence of the apparatus or article by which adhesion of the polymer to the surface(s) is achieved. In a preferred embodiment of the invention the antimicrobial monomer is graft polymerized on the surface(s).

Abstract: The present invention relates to a wood-polymer composite, particularly wood which has been impregnated with a mixture containing polymerizable organic compounds, and more particularly to a method for preparing a wood-polymer-composite by impregnating wood material and/or wood-based material with a mixture containing polymerizable organic compounds, and most particularly uses thereof.

Abstract: Cellulosic materials, including dimension lumber, plywood, particle board, wafer board, paper, fabric and similar materials, were treated with sodium silicate (Na2O.SiO2) in concentrations ranging from 400-0.04 g Na2O.SiO2/kg water and the surfaces of selected samples were further treated with silicon oxide (SiO or SiO2) applied in a molecular to micron layer thickness by vapor deposition. Tests were conducted to determine the effectiveness of these materials in terms of fire resistance, durability, duration of effectiveness and moisture resistance. For sodium silicate as a sole treatment, flame retardance was found to increase as the concentration of sodium silicate in solution increased. To overcome the disadvantages of sodium silicate, sodium silicate treated samples were further treated by the deposition of a molecular coating of silicon oxide by vapor deposition. Samples treated by this technique were found to be completely moisture resistance.

Abstract: The present invention is a process for pressure treating wood and includes wood which has been pressure treated by the process. The process comprises infusion into the wood of a solution in water of an anhydride or the analogous acid of an anhydride, followed by removal of moisture from the wood and the infusion of the wood with a molten waxy solid comprising hydrocarbon paraffins or saturated fatty acids. The molten waxy solid then solidifies, filling all voids in the wood.

Abstract: A method for treating wood products is provided wherein wood products are treated in an aqueous solution of a silicate, a rheology modifier, a wetting agent and, optionally, borax and/or a bacteriocide or fungicide; the aqueous solution having a pH of at least 9.0, preferably, a pH of 10-14, and most preferably, 13.0. A suitable dye can be added to the aqueous solution to color the wood product. The present invention is also directed to an aqueous solution for pressure treating wood and a wood product prepared according to the method of the present invention.

Abstract: A process for treating a wood substrate with a water-based formulation containing a wax in order to confer water repellency to the substrate comprising the steps of: (a) placing the substrate in a treatment vessel and reducing the pressure in the vessel to remove air in the pores of the substrate; (b) contacting the substrate in the vessel, while reduced pressure is present in the vessel, with the formulation to allow the formulation to flow into said pores, said contacting being carried out at a temperature at or above that required to cause the wax to change into a molten state; (c) applying a positive pressure to the vessel to force the formulation into said pores; and (d) releasing the pressure in the vessel and removing the resultant wood substrate from the vessel.

Abstract: A method of impregnating wood with liquid puts the wood in a pressure vessel, immerses the wood in the liquid contained in the pressure vessel, pressurizes the liquid to compress the wood while keeping the temperature of the wood at or above the softening point of the wood, and reduces pressure in the pressure vessel so that the wood may cause volume relaxation in the liquid and be impregnated with the liquid.

Abstract: A wood protecting agent, particularly for the protection of wood against dry-wood-destroying insects is provided. The wood protecting agent comprises a wood preservative carrier and the combination of at least one insect juvenile hormone or its analogue or mimetic with at least one an ecdysone agonist or its analogue or mimetic in a concentration of 0.5 to 0.00005 % by weight, related to the entire formulation, and optionally, one or more triazole compounds to achieve a synergistic increase in effectiveness of said formulation.

Abstract: A method for treating wood products is provided wherein wood products are treated in an aqueous solution of a silicate, a rheology modifier, a wetting agent and, optionally, borax and/or a bacteriocide or fungicide; the aqueous solution having a pH of at least 9.0, preferably, a pH of 10-14, and most preferably, 13.0. A suitable dye can be added to the aqueous solution to color the wood product. The present invention is also directed to an aqueous solution for pressure treating wood and a wood product prepared according to the method of the present invention.

Abstract: A wood treatment process is disclosed in which in one aspect the wood is impregnated with a waterborne preservative such as CCA at elevated temperature and pressure. The impregnated wood and excess waterborne preservative are separated while the treatment vessel (8) is pressurized, for example by blowing the preservative out of the vessel at the treatment pressure using a pump (10). Kickback may be segregated from the wood once pressure is reduced after the separation of wood and preservative. In another aspect the wood is impregnated with a waterborne preservative and with oil, each of the impregnating steps being performed under pressure and the oil being heated. If the preservative is one such as CCA which is capable of being fixed to the wood the hot oil may enhance this as well as providing water repellency. The oil may be a process oil.

Abstract: Precursor solutions are provided to produce thin film resistive materials by combustion chemical vapor deposition (CCVD) or controlled atmosphere combustion chemical vapor deposition (CACCVD). The resistive material may be a mixture of a zero valence metal and a dielectric material, or the resistive materials may be a conductive oxide.

Abstract: A method for treatment of one or more wood elements by pressurization comprises the steps embedding the wood elements into a pressure medium, of increasing the pressure in the pressure medium, whereby the wood element is compressed by transmitting the pressure via the pressure medium to the wood elements, and of reducing the pressure in the pressure medium, whereby the wood element is relieved. During the treatment, liquid present in the wood elements is driven out therefrom. The pressure medium comprises a plurality of solid bodies with intermediate spaces. The solid bodies transmit the pressure to the wood elements such that a pressure difference arises between the wood elements and said spaces, which pressure difference drives out the liquid. During the relief phase, the wood elements substantially resume their original shape. The method can also be used for introducing impregnating liquid into the wood elements after the liquid expulsion.

Abstract: A sodium silicate polymerization method was used to incorporate sodium silicate and/or other water soluble inorganic fire retardants into an insoluble matrix. By using a vacuum/pressure technique, a water soluble sodium silicate/borate mixture was forced into the interior of various cellulosic materials, then was heat polymerized into an insoluble fire retardant matrix. This produced a dual action fire retardant material also with the following properties: moisture resistant, weather proof, and improved strength. Water insoluble forms of sodium silicate and borates have not been possible until now. This process and testing was then repeated with six other water soluble fire retardant combinations, making them similarly water insoluble.

Abstract: A first tram loaded with wood is introduced at a first, loading end of a treatment chamber along a primary trackway. After treatment, the first tram is removed along the primary trackway from the treatment chamber to a second, opposite unloading end, while a newly loaded second tram is introduced into the chamber at the first end. After the treated wood is unloaded from the first tram, the empty first tram is returned to the first, loading end via a second trackway located under the chamber, parallel to the primary trackway. Pivotable bridges of the primary trackway selectively connect the primary and secondary trackways to allow the return of the unloaded tram to the loading end of the chamber.

Abstract: A wood article is submitted to a vacuum in an autoclave to remove air that it contains. Then, a solution which contains a water-soluble cross-linkable prepolymer, a polymerization initiator and optionally a wood preservative is introduced into the autoclave. Polymerization to form a polymeric network in the wood article is carried out in an atmosphere which may be substantially free of oxygen, while the optionally present preservative is chemically fixed to the wood. The result is a wood article with a permanently reduced hardness and an increased moisture content at equilibrium.

Abstract: Fire retarding and smoke inhibiting aqueous composition and a method for a one-step impregnation of aqueous-absorbable--and normally inflammable materials, such as wood, paper and textiles, said composition comprising ammoniumphosphates, phosphoric acid, water soluble metal salts with ability to form water insoluble salts with phosphate ions and/or ammoniumphosphate ions, and other optional additives.The composition comprises in combination:0.5-90% by weight monoammoniumphosphate and/or diammoniumphosphate,0.1-30% water-soluble metal salts with ability to form water insoluble salts with phosphate ions and/or ammoniumphosphate ions,1-20% by weight acid especially phosphoric acid (85%),1-15 % by weight dicyandiamide, andoptionally up to 5% by weight additivesin a total concentration of from 1 to 50% by weight with respect to the total weight of the aqueous solution, whereby phosphoric acid and dicyandiamide are present in the form of the reaction product guanylureaphosphate.

Abstract: Materials variously treated with sodium silicate were studied until enough information was obtained to find a way to solve the problems that have prevented sodium silicate from being the used as a fire retardant. These problems are: 1) water solubility (miscible with water), which results in extensive leaching when exposed to water, 2) cracking, chipping and peeling of treated surfaces, and 3) surface granulation. During flame tests it was discovered that sodium silicate formed a foam-like material, and this material was found to have become water insoluble, yet its elemental composition had remained virtually identical to that of the unmodified sodium silicate. This investigator proposes that under the influence of heat and dehydration, sodium silicate undergoes a polymerization process resulting in particles sizes too large to dissolve in water, and then developed a mechanism to explain how the process could occur.