Abstract: An engineered wood based siding, cladding or panel with a microstrand interface layer (MIL) applied to the top of the main strand matrix layers to minimize telegraphing, add rigidity and strength, and provide an improved surface appearance. The MIL comprises microstrands applied to the surface of the strand matrix or mat during production, prior to deposition of a fines layer. The MIL prevents the loss of fines into the strand matrix, and helps prevent or eliminate strand telegraphing.

Abstract: Methods of manufacturing nano-engineered carbon materials, such as carbon aerogels and carbon xerogels, and methods of manufacturing precursor solutions and sol-gels for making the same are provided. A method for manufacturing a precursor solution comprises programmed-addition of a cross-linking agent to a component mixture comprising a resorcinol compound. A method for manufacturing a sol-gel comprises subjecting a precursor solutions to at least one heat treatment. Methods for producing nano-engineered carbon materials from precursor solutions and sol-gels are also provided. Methods for using the nano-engineered carbon materials are also disclosed. The resulting nano-engineered carbon materials can be useful in a range of products including, supercapacitor applications, high-surface-area electrodes, fuel cells, and desalination systems.

Abstract: Provided is an adhesive composition suitable for fortifying panel joints in construction, the adhesive composition comprising a polymeric binder, filler and thickener, wherein the binder is selected from acrylic acid polymers, acrylic acid copolymers, alkyds, polyurethanes, polyesters, epoxies, and combinations thereof and wherein the viscosity of the composition is the range from 100 to 200 Brabender Units and density is in the range from about 7.5 lbs/gal to about 10 lbs/gal. Methods of using the adhesive composition in wall assembly are provided as well.

Abstract: A method of manufacturing a building panel (10). The method includes applying a first binder and free lignocellulosic or cellulosic particles on a first surface of a carrier for forming a first layer (11), applying a second binder and free lignocellulosic or cellulosic particles on the first layer (11) for forming a second layer (12), wherein the first binder is different from the second binder, and applying heat and pressure to the first and second layers (11, 12) to form a building panel. Also, such a building panel (10).

Abstract: The present invention relates to a laminate panel (40; 40?; 40?; 40??) with a carrier layer (41; 41?; 41?; 41??) of wood or wood-based material, in which at least the upper side has a decoration and a layer of a cured resin (46; 46?; 46?; 46??). The rear side of the laminate panel (40; 40?; 40?; 40??) is provided with a paperless counteracting layer of a cured counteracting material (45; 45?; 45?; 45??).

Abstract: A fire retardant intumescent coating composition is disclosed, which includes expandable graphite, an aromatic polyamine resin, and a phosphorous-containing compound. An overlay for applying to a wood substrate is also disclosed, which includes a core layer comprising a substrate and a resin composition, a top layer on one side of the core layer comprising the fire retardant intumescent coating composition, and an optional bottom layer on the opposite side of the core layer from the top layer. A process of forming the overlay is also disclosed, which includes applying the resin composition to the core layer substrate to form a resinated core layer, and applying a coating composition on the resinated core layer, directly or indirectly, to form the top layer; wherein the coating composition comprises expandable graphite, an aromatic polyamine resin, and a phosphorous-containing compound.

Abstract: An engineering or constructional member comprising at least two strips bonded with an adhesive; each of the strips comprises bamboo impregnated or treated with a polymer derived from one or more furfuryl alcohol resin precursors.

Abstract: A plywood flooring including a plywood as a substrate, where the plywood is heat-compressive treated in a density of 0.6 to 1.0 g/cm3 and is impregnated with a synthetic resin having a viscosity of 100 to 20,000 cp, which has both of the advantages of reinforced floorboards and the advantages of plywood floorboards.

Abstract: Resin systems and methods for making and using same are provided. The resin system can include a first aqueous resin comprising at least two polymerized monomers and a second aqueous resin comprising at least two polymerized monomers. The first aqueous resin can be present in an amount of about 5 wt % to about 95 wt %, based on the total weight the resin system. The second aqueous resin can be present in an amount of about 5 wt % to about 95 wt %, based on the total weight the resin system. The at least two polymerized monomers of the first and second aqueous resins can be the same monomers.

Abstract: The invention relates to a method for treating a board (1) of wood material, such as an HDF board, an MDF board, a plywood board, planks or boarding, comprising the steps of providing a board (1) of wood material, arranging a composition (8) comprising a binder (9) on a first main face (2) of said board (1), arranging said board (1) on a draining surface (22), heat-treating said board (1) and the composition (8) arranged thereon, and pressing the composition (8) into said board (1). The invention also relates to a board element comprising one or more board layers, which board element comprises binder, the binder being heterogeneously distributed in at least one of said one or more board layers.

Abstract: A fire retardant intumescent coating composition is disclosed, which includes expandable graphite, an aromatic polyamine resin, and a phosphorous-containing compound. An overlay for applying to a wood substrate is also disclosed, which includes a core layer comprising a substrate and a resin composition, a top layer on one side of the core layer comprising the fire retardant intumescent coating composition, and an optional bottom layer on the opposite side of the core layer from the top layer. A process of forming the overlay is also disclosed, which includes applying the resin composition to the core layer substrate to form a resinated core layer, and applying a coating composition on the resinated core layer, directly or indirectly, to form the top layer; wherein the coating composition comprises expandable graphite, an aromatic polyamine resin, and a phosphorous-containing compound.

Abstract: Provided are a formaldehyde scavenger capable of providing excellent formaldehyde scavenging performance without discoloring a wood material and not reemitting formaldehyde, and a wood material using the same. The formaldehyde scavenger contains urea, ammonium phosphate monobasic and ammonium phosphate dibasic. The formaldehyde scavenger contains urea, ammonium phosphate monobasic and ammonium phosphate dibasic preferably in a weight ratio of urea/ammonium phosphate monobasic/ammonium phosphate dibasic in the range of 5 to 45/0.5 to 15/1 to 20, and further preferably in a weight ratio of urea/ammonium phosphate monobasic/ammonium phosphate dibasic in the range of 10 to 35/1 to 10/2 to 15. The wood material is prepared by applying the formaldehyde scavenger thereto. The formaldehyde scavenger is preferably applied in the range of 1 to 50 g/m2 by dry weight.

Abstract: Reinforced wood flooring according to one embodiment includes: a surface layer having a plurality of wood sheets and a resin-impregnated paper sheet interposed between the wood sheets, in which each of the wood sheets has a predetermined thickness and a plate shape, and the wood sheets and the resin-impregnated paper sheets are bonded together into a unitary body through hot-pressing; an adhesive layer formed beneath the surface layer to serve as an adhesive; and a plywood arranged beneath the adhesive layer and attached to a lower side of the surface layer by the adhesive lay.

Abstract: A process for the production of a lignocellulose-containing substance having an average density in the range from more than 600 to 900 kg/m3, in which, in each case based on the lignocellulose-containing substance: A) from 30 to 95% by weight of lignocellulose particles; B) from 1 to 25% by weight of expanded plastics particles having a bulk density in the range from 10 to 100 kg/m3; C) from 3 to 50% by weight of a binder selected from the group consisting of aminoplast resin, phenol-formaldehyde resin and organic isocyanate having at least two isocyanate groups and, if appropriate D) additives, are mixed and then pressed at elevated temperature and under elevated pressure.

Abstract: Preservative composition for lignocellulosic-based composites providing rapid and long-lasting protection against insect and fungal attack, in both low and high moisture environments, through the use of a combination of higher solubility and lower solubility borates. Pesticidal amounts of a lower solubility borate and a higher solubility borate are combined before or during their incorporation into a lignocellulosic-based composite. Useful low solubility borates include copper borate, zinc borate and barium metaborate. Useful high solubility borates include boric acid, boric oxide, ammonium borate and alkali metal borates such as sodium borate. Some alkaline earth metal borates, including calcium borates, calcium magnesium borates, magnesium borates and calcium sodium borates, are of intermediate solubility and may be used effectively as either a low soluble or high soluble borate depending on the combination used.

Abstract: A plywood comprising plys of Paulowina wood combined with plys of other hardwoods. The resulting Paulowina based plywood panels are lightweight, approximately 40% lighter than ordinary plywood. This reduction in weight when used for construction of Recreational vehicles (RV's), Campers, Tractor-trailer box sides, Ocean Shipping boxes, Crates, and Steamer trunks will reduce associated fuel consumption by reducing the overall weight of the cargo, and can lower employee related injury. The resulting Paulowina based plywood panels will reduce work place injury (lower back pain, herniated disks, hernia, etc.) resulting in lower healthcare premiums for both employees and employers. The shipping industry that supply cargo shipping boxes also demand that a lightweight construction material be used for goods that are sent by air cargo, land cargo, rail, and sea cargo in order to conserve energy and the Paulowina based plywood panels are well suited for these applications.

Abstract: The invention relates to a method of producing a wood based product, comprising applying an adhesive system onto one or more pieces of a wood-based material, and joining the one or more pieces with one or more further pieces of a material, the adhesive system comprises one component comprising starch and another component comprising one or more polymers (P) containing an amine group or an amide group. The present invention also relates to an adhesive system comprising one component comprising starch and another component comprising one or more polymers (P) containing an amine group or an amide group, the two components being present as unmixed separate components. The invention further relates to a wood based product.

Abstract: A coated wood board flooring having improved moisture protection, the flooring comprising: a plurality of solid wood components which together form the wood board, such that the wood board has a first surface and a second surface; and a coating substantially free of water and solvents, wherein the coating is applied to at least one of the first and second surfaces of the wood board.

Abstract: Engineered wood products, methods of making the products, laminates including the products, and articles of manufacture which include the engineered products or composites, are disclosed. The products include wood and/or other cellulosic fibers, and can include non-cellulosic fibers, all or part of which can be derived from post-industrial and/or post-consumer materials. The products also include a binding agent, such as a latex dispersion, as well as hydrophobic materials, processing aids, colorants, and the like. The product can be in the form of a sheet, a three dimensional article or a plurality of laminated sheets, and can include one or more additional layers, such as top coat layers, reinforcing layers, cushioning layers, wood veneer layers, and/or additional product layers. The products can be used as flooring, and in construction, cabinetry, and the like.

Abstract: Resin compositions (A) and (B) are described: wherein resin composition (A) comprises a naturally occurring component or derivative thereof comprising protein, an aromatic hydroxyl compound-aldehyde resin and an amino resin, wherein the naturally occurring component or derivative thereof is chemically bound to the aromatic hydroxyl compound-aldehyde resin to form an ncPF resin and the naturally occurring component or derivative thereof is optionally chemically bound to the amino resin; wherein resin composition (B) comprises a condensation product of a naturally occurring component or derivative thereof, an aromatic hydroxyl compound-aldehyde resin and at least 20 wt % of urea based on the total mass of the resin composition, wherein at least 50 wt % of the naturally occurring component or derivative thereof is chemically bound directly or indirectly to the aromatic hydroxyl compound-aldehyde resin (ncPF), and wherein the naturally occurring component or derivative thereof comprises protein.

Abstract: Low formaldehyde emission wood based panels are described. These wood based panels have an outer surface layer comprised of a resin composition comprising a naturally occurring component or derivative thereof which is chemically bound to an aromatic hydroxyl compound-aldehyde resin (ncPF). The advantages of having an outer surface layer of the resin composition comprising ncPF, is that the outer surface layer can act as a surface sealer to reduce migration of components from the core of the wood based panel to the surface. The outer surface layer is pleasing to the consumer because it forms light colored faces on the wood based panel. It is also a superior surface for after treatment, such as for example, painting, when compared to amino or phenol resins. In addition, the outer surface layer comprising the inventive resin composition comprising ncPF can lend added fire-retardancy to the wood based panel.

Abstract: A process for finishing a wood or wooden board, in particular an MDF or HDF board, with an upper side and an underside. The process includes applying a sealing layer of melamine resin to the upper side of the board and printing a decoration onto the sealing layer. A protective layer is applied of melamine resin to the decoration and the board is pressed under the action of temperature until the protective layer and the sealing layer melt and bond to each other with the inclusion of the decoration printed on.

Abstract: A method for estimating surface moisture content of wood chips for use in a pulp and paper production process comprises measuring chip surface moisture using an infrared surface moisture sensor, and adjusting a calibration of the surface moisture measured with a model using values of a set of optical parameters representing light reflection characteristics of the wood chips, to estimate their surface moisture content.

Abstract: A derived timber board with a surface coating applied at least in parts is characterized in that at least one coating of a synthetic resin reinforced with fibers is applied as a surface coating. A method for applying the coating is also described.

Abstract: The invention relates to a method of producing a wood based product, comprising applying an adhesive system onto one or more pieces of a wood-based material, and joining the one or more pieces with one or more further pieces of a material, the adhesive system comprises one component comprising starch and another component comprising one or more polymers (P) containing an amine group or an amide group. The present invention also relates to an adhesive system comprising one component comprising starch and another component comprising one or more polymers (P) containing an amine group or an amide group, the two components being present as 10 unmixed separate components. The invention further relates to a wood based product.

Abstract: Use of micronized zinc compounds in wood preservation treatments containing micronized copper compounds significantly increases the efficacy of the treatment with respect to that of the copper compounds alone. Micronized copper compounds used at a retention in the range of from 0.005 to 1 pounds per cubic foot (pcf) expressed as CuO equivalent, and zinc compounds are used at a retention in the range of from 0.005 to 1 pcf expressed as ZnO equivalent, the increase in wood preservation efficacy over similar retentions of copper compounds alone can be seen in as little as 24 months.

Abstract: Particle or MFD boards are disclosed comprising an aminoplastic resins and yet exhibiting low emissions levels of formaldehyde, as well as methods to arrive at such boards.

Abstract: The invention relates to a veneered panel (1) having a supporting panel (2) and a veneer which is joined to at least one surface of the supporting panel (2). An overlay (4) is provided on the side of the veneer (3) facing away from the supporting plate.

Abstract: It is provided a wood flooring having laminated wood and plastic layers symmetric to each other and method of manufacturing the same. The wood flooring has an upper layer including laminated wood, a core layer including plastic sheets manufactured by calendaring, and a lower layer including veneer board, the lower layer being made of the same material as the upper layer, which are piled up symmetrically in order to keep the balance between the upper layer and lower layer, and then integrated under a constant temperature and pressure to form a suitable layers made by wood and plastic, thereby providing natural feeling in surface and solving the problem of distortion according to the change of environment.

Abstract: A chemiluminescent device providing multi-shape and optionally multi-color images that comprises two fluid-impermeable polymer sheets of the same shape, sealed together at their edges to provide a space for reactants, at least one of said sheets being translucent or transparent; one absorbent sheet (pad) having essentially the same shape as said fluid-impermeable sheets and placed between them in said space; reactants capable of producing chemiluminescent effect, comprising at least one chemiluminescent compound, peroxide, solvent, and optionally one or more fluorescent dye; separation means that prevents mixing said chemiluminescent compound and said peroxide before wishing to start said effect; and partition means providing that at least one of said reactants does not reach the whole volume of said space during said chemiluminescent effect. This effect is started, and said images are created, by removing said separation means.

Abstract: The invention relates to plywood, comprising at least two wood veneer layers and at least one adhesive layer, whereby the adhesive layer comprises a resin composition comprising a triazine compound (T), formaldehyde (F) and optionally urea, wherein the molar F/(NH2)2 ratio of the adhesive layer lies between 0.70 and 1.10 and the molar F/T ratio of the adhesive layer lies between 1.0 and 3.5. The invention further relates to a process for the preparation of plywood.

Abstract: This invention provides methods of furfural-urea modification of wood, and more particularly the present invention relates to the impregnation, and polymerization of, furfural-urea formulations under conditions of high weight percent gain (WPG) into wood. Wood is modified by impregnating wood first with furfural, thereafter impregnating the wood with a solution of urea, water and an acidic catalyst for polymerizing the mixture of furfural and urea in the wood. The wood is then dried and cured at the same time.

Abstract: Preservative composition for lignocellulosic-based composites providing rapid and long-lasting protection against insect and fungal attack, in both low and high moisture environments, through the use of a combination of higher solubility and lower solubility borates. Pesticidal amounts of a lower solubility borate and a higher solubility borate are combined before or during their incorporation into a lignocellulosic-based composite. Useful low solubility borates includes copper borate, zinc borate and barium metaborate. Useful high solubility borates includes boric acid, boric oxide, ammonium borate and alkali metal borates such as sodium borate. Some alkaline earth metal borates, including calcium borates, are of intermediate solubility and may be used effectively as either a low soluble or high soluble borate depending on the combination used.

Abstract: A wood veneer surfaced laminate and method of making it are provided which produces a product having the appearance of a natural wood product, but with the toughness, moisture resistance, stain resistance, impact resistance, and abrasion resistance of melamine resin surfaced laminate products. The wood veneer surfaced laminate is made by providing a sheet of a natural or engineered wood veneer; impregnating the sheet with a first liquid curable resin such that said liquid resin substantially completely impregnates the sheet; coating a second liquid curable resin onto a surface of the sheet; laminating the sheet to a core while curing the resins to form a natural or engineered wood veneer surfaced laminate.

Abstract: A furan polymer impregnated wood which comprises wood impregnated with a polymerizable furfuryl alcohol monomer mixture containing at least furfuryl alcohol, stabilizing co-solvent water, and an initiator selected from the group consisting of anhydrides, acids and combinations thereof is described. A method for preparing a furan impregnated wood and uses thereof is also described.

Abstract: An object of the present invention is to provide a photocatalytic powder containing titanium dioxide fine particles containing an anionically active substance, where the electrokinetic potential of the fine particle is from about ?100 to 0 mV in an aqueous environment at pH 5. Another object of the present invention is to provide a photocatalytic slurry containing the powder, and a polymer composition, a coating agent, a photocatalytic functional molded article and a photocatalytic functional structure using the powder.

Abstract: A chip board including an intermediary layer (1) and a layer (2) of large chips positioned on both sides of said intermediary layer. An outer layer (3) is provided on the 5 outer surface of each layer of large chips. In addition to the chips, the layers include an adhesive. The intermediary layer (1) includes a mixture of wood chips having chip fractions of a chip size of 0.1 to 20 mm, and the chips of this layer are randomly oriented. The individual chip in the layer (2) of large chips presents the following characteristics: a length of approx. 50 to approx. 130 mm, a width of approx. 4 to approx. 40 mm and a thickness of approx. 0.2 to approx. 2.0 mm. The chips within each layer (2) of large chips are all oriented in one and the same direction. As a result, a chip board is obtained which demonstrates a significantly higher E-module and stiffness in flexure than hitherto known despite a reduced consumption of material.

Abstract: A composite wood product is manufactured by heating and pressing wood materials in contact with a mixture of resin and urea. Gases that evolve from the heating and pressing of the wood materials, resin and urea are collected and are passed through a biological oxidation system to remove volatile organic compounds.

Abstract: Method and apparatus for estimating surface moisture content of wood chips employing a surface moisture measurement obtained from a non-contact surface moisture sensor, which measurement is calibrated with values of a set of optical parameters, such as HSL color camera signals, representing light reflection characteristics of the wood chips in order to estimate the surface moisture content thereof.

Abstract: A plywood laminate having dimensional stability and resistance to warping and delamination is formed from a plurality of higher quality plies and a plurality of lower quality plies. The higher quality plies may be of hardwood and the lower quality plies may be of softwood or lower quality hardwoods, or the higher quality plies may have a veneer grade of better than ANSI/HPVA HP-1-2000 veneer grade C and the lower quality plies may have a veneer grade of no greater than ANSI/HPVA HP-1-2000 veneer grade C. The exposed plies are of the higher quality. In most embodiments, at least two adjacent interior plies are of the lower quality. In those embodiments having a tongue and groove or click-lock edge configuration, the tongue comprises portions of at least two plies and at least one of the plies is a higher quality ply.

Abstract: Curable urea formaldehyde binder compositions are provided which are useful in coated abrasive and wood engineering applications, in a time released fashion. The time released curable binder compositions include a urea formaldehyde resin and an aryl phosphite in varying concentrations. The curable binder compositions of the present invention provide desirable working times and faster curing times tinder ambient or near ambient conditions.

Abstract: A layered composite product for use as a floorboard, a door, a cabinet, a wall, etc. is disclosed. The product is a layered structure that includes a rigid substrate layer having two substantially planar sides, a resin-saturated sheet layer disposed on each of the substantially flat sides, and a veneer layer disposed on at least one of the sheet layers. Also provided is a method of making the aforementioned product, the method comprising the steps of forming the layered structure, and then compressing the structure in a pressing apparatus for a time sufficient to cure the resin at under heat and pressure.

Abstract: A composite material panel having alternating layers of wood veneer with recycled or waste material. The layers are sandwiched together. The technique involves forming the composite material layer by layer and employing materials in each layer that are suited to satisfy requirements for specific kinds of construction. The layer of recycled or waste material is preferably flexible and has memory. Some examples include plastic straw, bars from plastic, tires or metal, balls from plastic or tires, sheet from plastic, tires or metal, air bubble cushioning from plastic. The metal is exemplified by aluminum and tin.

Abstract: A method of producing formaldehyde laden layered products, the products having reduced emission of formaldehyde, of at least 2 layers, at least one of the layers being a veneer, comprising a step of treating at least one of the surfaces of said veneer, prior to bonding the layers together, with a solution comprising an ammonium salt. The invention also relates to a flooring material obtained by the method.

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 of producing formaldehyde laden layered products, the products having reduced emission of formaldehyde, of at least 2 layers, at least one of the layers being a board or veneer, comprising a step of treating at least one of the surfaces of said board or veneer, prior to bonding the layers together, with a solution comprising an inorganic sulphur containing salt. The invention also relates to a flooring material obtained by the method.

Abstract: Disclosed is a floor-covering material, in which a phenol composite resin comprising phenol resin of resorcinol-formaline and polyurethane resin is incorporated with paper and dried, to form a prepreg, which is then thermally compressed to the upper side of a PVC base or a waterproof plywood layer, yielding a transparent protective layer and a shaping layer. In the flooring material, the transparent layer and the shaping layer are made of phenol composite resin, and thus low in heat- and moisture-distortion, with no curling. Further, since a surface layer of the floor-covering material is hardly distorted by heat, a balance layer for the suppression of such distortion is not additionally required.

Abstract: The present invention relates to a method of gluing wood based materials by providing an adhesive system onto wood based materials followed by curing, the adhesive system comprises a urea based amino resin and a hardener composition, wherein the hardener composition comprises an acid and a phenolic resin. The invention also relates to an adhesive system and a hardener composition as well as wood based products obtained by the method or through the use of the adhesive system.

Abstract: The present invention provides a wrap film or shrink film formed from a resin composition containing [I] a propylene polymer in an amount of 1 to 99 mass %, and [II] an olefin-based polymer in an amount of 99 to 1 mass %, wherein [I] the propylene polymer satisfies the following requirements of: (1) a meso pentad fraction (mmmm) is 0.2 to 0.6, and (2) a racemic pentad fraction (rrrr) and (1−mmmm) satisfy the following relation: [rrrr/(1−mmmm)]≦0.1. The wrap film or shrink film exhibits excellent characteristics, and does not generate a toxic gas derived from chlorine, such as hydrogen chloride gas or dioxin, when being incinerated.

Abstract: Sandwich type board, for application in the construction field, of the type comprised of side and counterside, which has the following successive layers, from the center to the outside: a cellulose core impregnated in phenolic resin, a cellulose film impregnated in melamine, a laminated wood panel treated with phenolic resin, a tone package of one to three translucent and/or transparent films of cellulose, each of them impregnated in a resin to be chosen between melamine, melamine-acrylic, phenolic, melamine-phenolic, a multi-layer transparent/translucent acrylic film and a surface finish obtained by means of a demoulding film in the board press process.