Abstract: The methods for making a coated thin veneer, plank or wood product in which the coated surface does not crack due to instability of the wood involve applying to a veneer, plank or wood product a composition including a hydrophilic polymer and a reactive monomer or a composition including a reactive (meth)acrylate. In one embodiment, the hydrophilic polymer is a polyalkylene glycol, such as polyethylene glycol. The composition also advantageously includes a thermally activated free radical initiator, a photoinitiator or both. The veneer is further laminated into wood product boards that are cut down to planks. In another aspect of the current invention, several solvent based resins are roll coated onto the loose and/or tight side of the thin veneer or unfinished plank wood, dried to remove solvent, and exposed to UV radiation to cure the resinous material by radical initiation of the photoinitiator that leads to polymerization.

Abstract: A coating composition for forming abrasion-resistant, high clarity coatings is described. It has been found that a macrocrystalline or single crystal mineral abrasive can be added at high levels, about 5 to about 80 percent by weight, to art-recognized film-forming resin compositions for producing coatings exhibiting exceptional abrasion resistance and clarity. Such a coating composition is useful for application to surfaces including wood, vinyl, tile, rubber modified cement, marble, metal, plastic, and laminated surfaces.

Abstract: The present invention provides a system and method for determining adhesive resin distribution on wood flakes to be formed into a wood-based composite. Where a predetermined amount of adhesive resin has been sprayed onto a selected amount of wood flakes being tumbled in a blender, the method includes the steps of: removing a sample of sprayed wood flakes at the output of the blender and placing the sprayed wood flakes on a scanning bed; scanning the sprayed wood flakes with a scanner having at least 1200 dpi resolution with 1800 dpi interpolation to provide image data; using image analysis software with resin analysis macros to filter the image data to provide a high contrast image that shows each adhesive resin spot differentiated from the wood flake on which the adhesive resin spot is situated; and measuring and analyzing the high contrast image to provide an output showing at least a percent coverage of the wood flake by the adhesive resin.

Abstract: PVC/wood fiber composites are comprised of (1) wood fibers; and (2) a composite comprising PVC, a polyester and a lubricant package comprised of one or more polyol esters, polyols, fatty acid esters of aliphatic or aromatic dicarboxylic acids, fatty acid salts, fatty alcohols, hydrogenated fatty acid glycerides and combinations thereof. The composites are easier to process than conventional composites because they require lower extruder torque that translates into less work and corresponds to lower process temperatures.

Abstract: A composition for impregnation of a lignocellulosic material such as wood or wood particles, comprises a high boiling point tar acid or a pitch derived from coal; a solvent for the tar acid or pitch selected from a low carbon alcohol, an aceotrope of a low carbon alcohol and another solvent, and a mixture of a lower carbon alcohol and water; a phenol formaldehyde resole resin; an acid catalyst for the phenol formaldehyde resole resin; and preferably a formaldehyde donor or a precursor thereof. There is also disclosed a method of preparing a finished product from a lignocellulosic material by using the impregnating composition.

Abstract: A coated film and a coated glass improved in the resistance to fouling derived from water and oil repellency, and in the durability, the abrasion resistance, and the exfoliation of stacked outer layer, are provided by a specific coating composition having at least one component (a) selected from organosilanes, hydrolyzates of the organosilanes, and condensates of the organosilanes, and component (b) containing a silyl group wherein one of silicon atoms bonded with a hydrolytic group and/or a hydroxy group.

Abstract: A method is provided for forming a durable, smooth-sided, multi-layer integral, composite engineered panel. The method typically is directed to first forming a mat comprising a plurality of layers of lignocellulosic strands or wafers. The plurality of layers of lignocellulosic strands or wafers are bonded together by an adhesive material. Then, at least one layer of smaller particles of lignocellulosic material is formed on the mat. This layer of smaller particles is blended together with an adhesive material thereby joining the layer of smaller particles to at least one outer surface of the mat. Next, at least one sheet of paper is joined to an outer layer of smaller particles of lignocellulosic material. This step takes place during the formation of the multi-layer integral, composite engineered panel. Finally, a substantially smooth outer surface is formed, upon pressing, in at least one surfaces of the multi-layer integral, composite engineered panel.

Abstract: A Composite Structural Panel (CSP) includes a composite core that is preferably made of a plurality of vertically laminated Oriented Strand Board (OSB) sheets. The OSB sheets may be fastened together by using any conventional fastening means, such as an adhesive. Preferably, the CSP also includes a layer of polymer concrete applied to the top surface of the composite core, and a layer of glass fiber reinforced polymer (GFRP) reinforcement material having E-glass fibers applied to the bottom surface of the composite core. When the CSP is supported directly on the ground, the E-glass fibers of the GFRP reinforcement material are preferably oriented in a transverse direction with respect to the plurality of vertically laminated OSB sheets. A layer of protective material may be applied to the side surfaces of the composite core to provide additional protection from harsh environmental conditions.

Abstract: The present invention is related to a method of preserving plywood, particle board and similar wood composite products made from wood pieces/particles and a binder used to adhere such wood pieces/particle together against rot and mould decay. According to the invention, the preservative of the wood material is a complexing agent which is capable of binding transition group metals and is admixed into the binder used in the manufacture of said wood composite products prior to the formation of said product. The invention also concerns a binder composition, which contains a polymer resin as its adhesive component and a complexing agent, particularly an aminotetracarboxylic acid or a salt thereof, by approx. 1-30 wt.-% as the preservative of the wood material, and a method of producing said binder composition. Tests performed on faced plywood indicated that a water-soluble, environmentally safe complexing agent offers a white rot resistance which is superior to conventional preservatives commonly used today.

Abstract: A coating composition for forming abrasion-resistant, high clarity coatings is described. It has been found that a macrocrystalline or single crystal mineral abrasive can be added at high levels, about 5 to about 80 percent by weight, to art-recognized film-forming resin compositions for producing coatings exhibiting exceptional abrasion resistance and clarity. Such a coating composition is useful for application to surfaces including wood, vinyl, tile, rubber modified cement, marble, metal, plastic, and laminated surfaces.

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: A melamine-containing resin modified with a cyclic urea prepolymer comprising urea, formaldehyde and ammonia or a primary amine. The prepolymer-modified melamine-containing resin provides useful binders alone, or when combined or coreacted with other resins. Products prepared with the binder include wood composites such as particleboard and medium density fiberboard.

Abstract: A method for production of cores for doors, partitions, furniture and the like. A filling material is mixed with a binding agent and the core is form-pressed in a desired shape, preferably as a plate-shaped item, where biomass is used as filling material, for instance, in the form of straw and stalks. A binding agent is used, mainly consisting of either UF-glue (urea-formaldehyde) or MUF-glue (melamin urea-formaldehyde). Preferably, the core further contains a foaming agent. A core may be provided as a form-pressed, mainly plate-shaped item, where the filling material consists of biomass, for instance, in the form of disintegrated straw and stalks, and where the binding agent mainly consists of UF-glue or MUF-glue, to which a foaming agent preferably is added.

Abstract: The preparation of phenol-formaldehyde and melamine-formaldehyde resin-based binders extended with a cyclic urea-formaldehyde prepolymer and to products prepared using the binders. More particularly, the invention relates to a cyclic urea prepolymer comprising urea, formaldehyde, and ammonia or a primary amine which, when added to a phenol-formaldehyde or melamine-formaldehyde based resin, results in a useful binder for the manufacturer numerous articles.

Abstract: A veneer-based product is made of a plurality of veneer layers, a resin binding the layers, and a filler having a high thermal conductivity.

Abstract: The present invention relates to a soybean-based adhesive resin including a soybean flour and a cross-linking agent. The cross-linking agent is reacted with the functional groups in the soybean flour to form an adhesive resin. The present invention also relates to a method of making a soybean-based adhesive resin. This method involves providing an aqueous solution of soybean flour and adding a cross-linking agent to the solution under conditions effective to cross-link the soybean flour so that an adhesive resin is formed. Also disclosed is a composite product which includes particulate plant material and the soybean-based adhesive resin. The adhesive is prepared by reacting the cross-linking agent with the functional groups in the soybean flour. The present invention also relates to a method of making a composite product by providing particulate plant material and applying the soybean-based adhesive resin to the particulate plant material.

Abstract: A fiber reinforced composite wood flooring is designed particularly for use in van-type truck trailers which experience adverse operating conditions due to heavy lift truck traffic on the top side and water spray during rainy periods on the bottom side. The composite wood flooring comprises edge-glued laminated wood which is underlaid with a thin layer of fiber reinforced plastic. The top surface of the composite wood floor is the same as that of a conventional laminated wood floor. The fiber reinforced plastic underlay is composed of glass and/or carbon fibers embedded in a polymeric resin such as epoxy, phenolic, vinyl ester, polypropylene or polyamide resin. The fiber reinforcement is designed to enhance the mechanical properties of the flooring in the longitudinal and transverse directions of the floor. The fiber reinforced plastic improves the fatigue resistance of the composite wood flooring and prevents water leakage into the trailer through the floor boards.

Abstract: The preparation of phenol-formaldehyde and melamine-formaldehyde resin-based binders extended with a cyclic urea-formaldehyde prepolymer and to products prepared using the binders. More particularly, the invention relates to a cyclic urea prepolymer comprising urea, formaldehyde, and ammonia or a primary amine which, when added to a phenol-formaldehyde or melamine-formaldehyde based resin, results in a useful binder for the manufacturer numerous articles.

Abstract: The invention pertains to compositions which can be coated onto substrates. These compositions include a combination of a resin blend comprising a first polyester resin and a second polyester resin, wherein the first polyester is different from the second polyester, an aminoplast crosslinking resin, an acid catalyst, and a urea-aldehyde resin. Films prepared from coating compositions made in accordance with the present invention having improved stain resistance. In many instances, films prepared from coating compositions made in accordance with the present invention not only have improved stain resistance, but also have low temperature flexibility.

Abstract: A single package, ready-to-use (RTU) resin/wax emulsion adhesive and a method of preparing the same by heating a thermosetting resin and adjusting the pH of the wax emulsion prior to combining the resin and wax emulsion. The use of the adhesive in making bonded composites such as wood products, including oriented strand board (OSB), parallel strand lumber, wafer board and particle board composites.

Abstract: The preparation of phenol-formaldehyde and melamine-formaldehyde resin-based binders extended with a cyclic urea-formaldehyde prepolymer and to products prepared using the binders. More particularly, the invention relates to a cyclic urea prepolymer comprising urea, formaldehyde, and ammonia or a primary amine which, when added to a phenol-formaldehyde or melamine-formaldehyde based resin, results in a useful binder for the manufacturer numerous articles.

Abstract: Modified melamine-formaldehyde resins are made of a condensate of formaldehyde, urea, melamine and modifying agents which contains: (a) a combination of 5 to 25 wt %, with respect to melamine, of dicyanodiamide and 8 to 30 wt %, with respect to melamine, of water-soluble polyalcohol with at least two hydroxyalkyl groups, and/or (b) 1.5 to 20 wt % amines having the formulas (Ia)NR.sub.4 R.sub.5 --R.sub.1 --X (Ia)and/or (Ib),NR.sub.4 R.sub.5 --R.sub.2 --Y--R.sub.3 --X (Ib)in which R.sub.1 and R.sub.3 are the same or different and depending on the meaning of X stand for a linear, branched or cyclic C.sub.1 -C.sub.12 alkyl or alkylene radical and R.sub.2 stands for a linear, branched or cyclic C.sub.1 -C.sub.12 alkylene radical; R.sub.4 and R.sub.5 can be the same or different and can stand for H or for a linear or branched C.sub.1 -C.sub.12 alkyl radical; and X can stand for hydrogen, OH or NR.sub.4 R.sub.5 and Y can stand for --O-- or --NH--. The molar ratio of melamine to formaldehyde ranges from 1:1.

Abstract: A phenolic resin modified with an alkali salt of sulfite or bisulfite in order to provide compatibility with a wax emulsion sizing agent, an adhesive prepared from the phenolic resin and wax emulsion, and the use of the adhesive in making bonded composites such as wood products, including, parallel strand lumber, oriented strand board (OSB), laminated veneer lumber (LVL), medium density fiberboard, wafer board and particle board, and textile products.

Abstract: There is disclosed a resin-coated overlay for bonding to solid substrates, and which imparts improved waterproofing and chemical resistance to the resulting resin-coated overlaid solid substrate. Depending upon the desired end use of resin-coated overlaid solid substrate, the resin-coating may be modified to impart desirable surface features and/or characteristics. For example, additives such as waxes, oils, silicones, fluorocarbons and fatty acid compounds may be used to promote the release of concrete from forms made of solid substrates overlaid with the resin-coated overlays of the present invention. Moreover, resin-coated overlaid solid substrates may be produced having a surface which is suitable for painting and which accepts application of various tape products. Other modifications are disclosed which can be used to gain desirable cure speed, cost, and chemical/mechanical properties in the resin-coating.

Abstract: The invention concerns a stable control serum or calibration serum containing bilirubin to analytically examine the methodical accuracy of individual parameters in human sera or patients. The control serum or calibration serum according to the invention is used to stabilize bilirubin in solutions and to generally increase the stability of control sera or calibration sera.

Abstract: A process for the production of a storage-stable, modified phenol-aldehyde resol resin includes the use of an alkylresorcinol modifier and preferably a readily-available mixture of alkylresorcinols. A binder system includes the modified phenol-aldehyde resin combined with a curing agent that includes an additional source of an aldehyde, e.g., a phenol-formaldehyde resin. The resin and binder system are useful in the production of a wood composite (such as plywood, oriented strandboard, or fiberboard).

Abstract: The invention comprises a method of densifying lignocellulosic material such as wood. The wood is impregnated with a maltodextrin solution under vacuum and/or pressure and the maltodextrin is then cross linked to insolubilise the maltodextrin. A wood-polymer composite is formed. Suitable cross linking agents include compounds having at least one hydroxyl group. Maltodextrins having a dextrose equivalent in the range 15 to 30 are preferred. The resulting composite material has improved appearance, hardness, impact resistance, strength and water repellency.

Abstract: A guanidine-modified phenol-formaldehyde resole resin by reacting formaldehyde and phenol at a formaldehyde to phenol mole ratio above about 1.5:1 in the presence of an effective amount of an alkaline catalyst and in the presence of a catalytic amount of a guanidine salt. The resin is suitable for use in adhesives for high moisture content substrates.

Abstract: A process for producing a phenol-aldehyde (e.g., cresol-aldehyde) resin that is modified with a dihydroxybenzene compound. The resin may form a binder system when combined with a curing agent which includes an additional source of an aldehyde. The resin and adhesive are useful in the production of wood composite articles by a steam injection process.

Abstract: The collected lumber of the present invention is formed by heating and softening a plurality of woods, applying adhesive on the woods, pressing and compressing the wood with adhesive thereon to mold the integral body in a prescribed shape, and by fixation treating the integral body using a heating device. The method for manufacturing collected lumber of this invention comprises the first process for softening woods by heat treating a plurality of woods, the second process for applying adhesive on the softened woods, the third process for forming integral body by pressing and compressing the woods applied with the adhesive to mold in a prescribed shape, and the fourth process for fixation treating the integral body using a heating device.

Abstract: The present invention provides a wood board, and a flooring material using this, which uses thin wooden strands as a raw material, has superior surface smoothness, and possesses sufficient strength and rigidity. The wood board in accordance with the present invention comprises a core layer 1 comprising a strand board, and a surface layer 2 comprising a oriented strand board which is laminated on at least one surface of the core layer 1; the surface layer 2 comprises thin wooden strands which are thinner than the thin wooden strands comprising the core layer, and furthermore, the flooring material of the present invention is obtained by laminating a decorative single sheet onto at least one of the surface layers 2 of the wood board. The wood board and flooring material in accordance with the present invention have high strength and superior surface smoothness.

Abstract: The invention relates to the use of a resorcinol-glutaraldehyde reaction product as an accelerator for thermosetting phenolic resin and to a method of making the accelerator. Further, the invention relates to a resin blend comprising phenol-formaldehyde and the accelerator and a process for making cellulosic board, oriented strandboard and plywood wherein the binder for the cellulosic board, oriented strandboard and plywood in its uncured form comprises the resin blend of the invention. In another embodiment the accelerator for thermosetting resin comprises resorcinol and glutaraldehyde.

Abstract: A low mole ratio melamine-urea-formaldehyde resin useful as a binder for making a variety of products, and a method for making the resin. The melamine-urea-formaldehyde resin thus produced is stable and has low formaldehyde emissions (release).

Abstract: The invention comprises a method for joining pieces of unseasoned or undr wood, by finger jointing or other joining technique. The wood may have a moisture content above the fibre saturation point of the wood, and as high as 50% to 100% or higher moisture content. An adhesive having a sufficiently high molecular weight or viscosity to avoid adhesive degradation or migration due to moisture in the wood during forming and curing of the joint, or which will cure to achieve such a sufficiently high molecular weight or viscosity during forming and curing of the joint is employed. Optionally a cure promotor or chemical which increases the rate of cure of the adhesive may be used. Preferred adhesives are formaldehyde based adhesives. Preferred cure promotor or chemicals are ammonia or amine compounds, organic acids including low molecular weight carboxylic acids, and Lewis or Bronsted class acids.

Abstract: Wood veneers having enhanced strength and/or stiffness, wood products made therefrom, and methods for manufacturing such veneers and wood products are disclosed. A treated veneer having enhanced strength and stiffness has a population of compacted wood cells extending across at least a portion of the length and width dimensions and into the thickness dimension of the veneer to confer an increased density level, and thus increased strength and/or stiffness levels, to the veneer. Interspersed in the compacted wood cells is a non-saturating loading level of a cured rigid thermoset material which maintains compaction of the compacted cells even after prolonged soaking in water. The preferred loading level is just what is required to maintain compaction of the cells. The preferred thermoset material is polyurea which is formed from a polyisocyanate resin applied to at least one major surface of the veneer followed by hot-pressing the veneer.

Abstract: A process for the production of a modified phenol-aldehyde resin which may form a binder system when combined with a curing agent which includes an additional source of an aldehyde, e.g., a phenol-formaldehyde resin. The inventive phenol-aldehyde resin may be modified with compounds from one of the following classes: (1) dihydroxybenzenes, (2) aminophenols, and (3) phenylenediamines. The resin and adhesive are useful in the production of a wood composite (such as plywood, oriented strandboard, or fiberboard).

Abstract: A process for the production of a modified phenol-aldehyde resin which may form a binder system when combined with a curing agent which includes an additional source of an aldehyde, e.g., a phenol-formaldehyde resin. The inventive phenol-aldehyde resin may be modified with compounds from one of the following classes: (1) dihydroxybenzenes, (2) arninophenols, and (3) phenylenediamines. The resin and adhesive are useful in the production of a wood composite (such as plywood, oriented strandboard, or fiberboard).

Abstract: Wood and other cellulose-based products are preserved with a water-based treating solution containing a phenolic resin prepolymer such as phenol formaldehyde resin prepolymer, a resorcinol formaldehyde resin prepolymer and water. The treatment is carried out by exposing the wood or other cellulose-based product, while submerged in the treating solution, to one or more cycles of reduced pressure (i.e. vacuum) and elevated pressure.

Abstract: A two component adhesive comprising a natural or synthetic rubber first component and a second component capable of destabilizing the natural or synthetic rubber first component slowly can be utilized in conventional application equipment designed for applying single component adhesives is provided.

Abstract: A biodegradable resin molded article molded from a kneaded material obtained by kneading, melting or mixing a biodegradable resin raw material and at least one of a biodegradable additive and an additive made of a substance existing in the nature, an injection molded article of a biodegradable resin containing a biodegradable resin and an anti-biotic substance, a molded article of a resin composition including a polymer material having an ester bond in the polymer main chain thereof and an alkali or acid component in an amount effective for neutralizing an acidic or alkaline component contained in the polymer material, and a resin molded article having a layer of a biodegradable resin, and a layer of a photolytic resin covering the resin layer and containing an antibiotic.

Abstract: A polymer composite having excellent mechanical properties such as shock resistance, and good adhesiveness is obtained by polymerizing a vinyl monomer in the presence of a rubber-like copolymer and a thermoplastic resin without a substantial amount of a solvent. The polymer composite contains a matrix phase which comprises the thermoplastic resin and a graft copolymer formed from the resin and the vinyl monomer, and a dispersed phase which comprises the polymer of the vinyl monomer and a graft polymer formed from the vinyl monomer and the rubber-like copolymer. Preferably the reaction is carried out by kneading the vinyl monomer, the rubber-like copolymer and the thermoplastic resin with a high shearing force and removing an unreacted vinyl monomer. A single screw vent-extruder or a twin screw vent-extruder may be used for kneading. The polymer composite is useful for making a formed article and as a binder in a laminate.

Abstract: The present invention provides a wood board, and a flooring material using this, which uses thin wooden strands as a raw material, has superior surface smoothness, and possesses sufficient strength and rigidity. The wood board in accordance with the present invention comprises a core layer 1 comprising a strand board, and a surface layer 2 comprising a oriented strand board which is laminated on at least one surface of the core layer 1; the surface layer 2 comprises thin wooden strands which are thinner than the thin wooden strands comprising the core layer, and furthermore, the flooring material of the present invention is obtained by laminating a decorative single sheet onto at least one of the surface layers 2 of the wood board. The wood board and flooring material in accordance with the present invention have high strength and superior surface smoothness.

Abstract: This invention refers to a wood substitute with lignocellulosic and mineral material particles which are molded in sheet, e.g. plates and/or panels in different thicknesses or forms in stencil at choice, using in principal natural and artificial, and vegetal cellulosic material components, e.g. dried leaves, sawdust, rotten wood particles splinters, paperwastes, roots and mineral materials as limestone from sulphates type carbonates or calcium oxides, with synthetic binders from different chemical structures, with or without dyes, in these proportions: 35-60 by weight lignocellulosic components particles, 5-35 by weight limestone types, 5-30 by weight synthetic binders from different harmless chemical structures, with or without synthetic dyes from varied chemical structures and with or without requested additions.

Abstract: The present invention relates to multilayer wood veneer composite laminates, the outermost layer of which is a natural wood veneer, and the substrate of which is a plurality of layers of cellulose-containing plastic sheets, and a method to make the composite laminate. The composite laminate according to the present has the look, feel, heft, and sound when struck of natural wood. The method has a very short cycle time, which increases the utilization of capital equipment, and includes the steps of laying-up the substrate layers, pre-heating the substrate layers, applying adhesive to the bottom surface of the outer layer or layers, laying-up the outer layer(s) on the pre-heated substrate layers, and cold pressing the layers in a compression die. The laminate is then de-molded. If a metal die is utilized, the laminate will be cool upon de-molding.

Abstract: A fire and chemical resistant fabric having anti-static properties which comprises at least one laminate formed by coextruding a pair of polymeric sheets with an intermediate layer of a polar resin or hydrophilic polymer which is adhered to a fabric scrim comprising a blend of polyester and cellulosic fibers, the fabric scrim containing an effective amount of an anti-static and fire resistant agent.

Abstract: Plastic-coated plywood, useful as a concrete form panel, having a topcoat of catalyzed moisture-cured isocyanate-terminated urethane prepolymer with a smooth surface having high gloss, durably adhered to the plywood by an alkali-resistant seal-prime coat.

Abstract: Disclosed are a resorcinol resin adhesive composition which comprises a resorcinol resin modified by m-aminophenol, and a process for bonding wood materials by using the same.

Abstract: A method for improving the corrosion and wear resistance properties of aluminum honeycomb core panel construction is disclosed. In a first embodiment, a surface of an aluminum honeycomb metal specimen is melted using a pulsed ion beam and then left to cool by thermal diffusion. A layer of metallic glass demonstrating enhanced hardness and corrosion resistance properties formed integrally with the specimen surface results. In a second embodiment, the surface of the aluminum honeycomb metal specimen is coated with a thin film of metal material. Ions in the pulsed beam drive the atoms in the metal film into the near-surface region of the aluminum honeycomb metal specimen to create an alloy which also has enhanced corrosion and wear properties.

Abstract: A method of producing a veneer having a given thickness requires cutting of a stock material by a mechanism including a rotary lathe blade and a nose bar. The nose bar is arranged at the outer periphery of the stock material in the vicinity of the tip of the rotary lathe blade, such that the spacing between the tip of the nose bar and the tip of the rotary lathe blade in a horizontal direction is 20 to 30% smaller than the thickness of the desired veneer to be cut. The stock material is cut by rotating the stock material by a spindle which chucks the end faces of the stock material at opposite ends thereof. A backup roller rotated by the rotation of the stock material constantly biases the stock material toward the nose bar and is positioned on the outer periphery of the stock material in a position diametrically opposite to the rotary lathe blade.

Abstract: A composite wood product made from discrete wood particles secured together by a cured bisphenol A formaldehyde resin cured from an A-stage bisphenol A formaldehyde resin having an A-stage bisphenol A to formaldehyde mole ratio of 1 to between 2.5 and 4 and between 3 and 11% of caustic measured as sodium hydroxide based on the weight of resin solids. Preferably the resin will include 2 to 10% urea based on the resin solids. The cured bisphenol A formaldehyde resin secures the wood particles together to form a composite wood product having light colored glue lines that substantially corresponds in color with the wood so that the glue lines tend to be unnoticeable.