Patent application number | Description | Published |
20100104746 | SYSTEMS AND METHODS FOR TREATING RAW MATERIALS FOR WOOD PRODUCT INFORMATION - Systems and methods for treating raw materials for formation into a wood product are provided. The raw materials may be, for example, strands, flakes, particles, wafers, or the like. In an embodiment, a first dispensing device dispenses a first liquid component onto raw materials within a chamber. A second dispensing device dispenses a second liquid component onto the raw materials. When the raw materials are mixed together, the first and second liquid components interact to form a bonding agent. | 04-29-2010 |
20100126095 | Warp-Resistant Wooden Header - The disclosure includes warm resistant wooden beams and methods of manufacturing. In one embodiment, wooden beams having opposing major surfaces covered by hydrophobic polymeric films exhibit dry surface friction values of about 3.0-20 lbs. and blocking values of about 0-150 lbs. Specific hydrophobic polymeric films include polyethylene and polypropylene films. | 05-27-2010 |
20100244300 | FOAMED BINDER AND ASSOCIATED SYSTEMS AND METHODS FOR PRODUCING A WOOD PRODUCT - The disclosure relates to foamed binders for wood strand products and methods and systems for producing wood strand products using foamed binders. In some embodiments, the disclosure includes a method for producing a wood strand product from cellulosic particles, the method comprising the steps of foaming a phenol formaldehyde binder to produce a foam, tumbling the cellulosic particles in a rotary blender, applying the foam to the cellulosic particles in the rotary blender, blending the cellulosic particles and the foam so that the foam covers the cellulosic particles, and consolidating the cellulosic particles under heat and pressure. | 09-30-2010 |
20100249283 | WOOD COMPOSITE WITH WATER-REPELLING AGENT - The present disclosure includes a wood composite made from cellulosic particles, a binder, and a water-repelling agent. In some embodiments, the water repelling agent includes aliphatic compounds having a molecular distribution between about 16 and about 36 carbon atoms per molecule. In some embodiments, the water-repelling agent has an average molecular weight of about 220 to about 350 Daltons (solids portion). The water-repelling agent may be applied as a wax emulsion or in neat wax form. The present disclosure also relates to a method for manufacturing a wood composite as described above. | 09-30-2010 |
20110245381 | UTILIZATION OF KRAFT LIGNIN IN PHENOL/FORMALDEHYDE BONDING RESINS FOR OSB - A resin for OSB comprising an aqueous resole reaction product of phenol, formaldehyde, alkaline metal hydroxide or carbonate, urea and a degraded lignin polymer having 35-65% solids, a pH of 8-13 and a viscosity 50-1000 centipoises. The phenol and formaldehyde are present in a molar ratio of 1.5 to 3.4 moles formaldehyde to 1 mole phenol and are 40 to 85% of the total solids added to the mixture. In one embodiment they are 50 to 75% of the total solids added to the mixture. The alkaline metal hydroxide or carbonate are 5 to 20% of the total solids added to the mixture. Urea is 5 to 35% of the total solids added to the mixture. The degraded lignin is 5 to 20% of the total solids added to the mixture. | 10-06-2011 |
20130000239 | FIRE RESISTANT WOOD PRODUCTS - The present disclosure is directed generally towards fire-resistant wood products and formulations for fire-resistant coatings. In some embodiments, the disclosure includes a fire-resistant coating comprising an aromatic isocyanate (present in a quantity ranging from about 15% to about 39%), castor oil (present in a quantity ranging from about 37% to about 65%), and intumescent particles (present in a quantity ranging from about 1% to about 40%). Further aspects are directed towards materials such as wood products coated with fire-resistant coatings according to embodiments of the disclosure. | 01-03-2013 |
20130066012 | UTILIZATION OF KRAFT LIGNIN IN PHENOL/FORMALDEHYDE BONDING RESINS FOR OSB - A resin for OSB comprising an aqueous resole reaction product of phenol, formaldehyde, alkaline metal hydroxide or carbonate, urea and a degraded lignin polymer having 35-65% solids, a pH of 8-13 and a viscosity 50-1000 centipoises. The phenol and formaldehyde are present in a molar ratio of 1.5 to 3.4 moles formaldehyde to 1 mole phenol and are 40 to 85% of the total solids added to the mixture. In one embodiment they are 50 to 75% of the total solids added to the mixture. The alkaline metal hydroxide or carbonate are 5 to 20% of the total solids added to the mixture. Urea is 5 to 35% of the total solids added to the mixture. The degraded lignin is 5 to 20% of the total solids added to the mixture. | 03-14-2013 |
20140044916 | THERMALLY INSULATING LOW DENSITY STRUCTURAL WOODEN COMPOSITE - Wood-based composites, and methods for their manufacture, are provided. The composites include oriented wooden strands and cured bonding resin connecting adjacent strands. The composites are relatively low-density, having an average dry density of the wooden composites of about 15-28 pounds per cubic foot (pcf). The unique composition of the composites provide improved structural and insulating (thermal and acoustic) properties when compared to traditional engineered wood products (e.g., oriented strandboard). | 02-13-2014 |
20140295164 | WATER RESISTANT LOW FLAME-SPREAD INTUMESCENT FIRE RETARDANT COATING - The present disclosure provides compositions formulated to provide water resistant and low flame spread properties when applied as a coating to a surface (e.g., the surface of a wood product). Wood products treated with the composition, as well as methods for applying the composition to a surface are also provided. | 10-02-2014 |
20140295561 | MOISTURE INDICATOR FOR WOOD SUBSTRATES - A moisture content indicator for visually indicating the moisture content of a wood substrate and methods of making the moisture content indicator are provided. | 10-02-2014 |
20140296429 | LIQUID KRAFT LIGNIN COMPOSITIONS - Liquid kraft lignin compositions, methods of their production, and various methods of their use, including in preparing kraft lignin-containing LPF resins, which may in turn be used in producing OSB or other wood-based composites, and methods of assaying lignin content in such compositions, are disclosed. In an illustrative and non-exclusive embodiment, a liquid kraft lignin composition includes water in the amount of about 60-95% by weight, urea about 5-30% by weight, a group 1 alkaline metal hydroxide about 0.5-3.0% by weight, and kraft about 5-25% by weight on a dry basis. | 10-02-2014 |
20140356632 | WATER-RESISTANT SURFACE TREATMENT FOR WOOD PRODUCTS - The present disclosure provides compositions formulated to improve water resistance when topically applied as a treatment to a surface (e.g., the surface of a wood product). Wood products treated with the compositions, as well as methods for applying the compositions to a surface, are also provided. | 12-04-2014 |
20150020476 | FIRE RESISTANT COATING AND WOOD PRODUCTS - A fire-resistant coating for a wood product which includes a polyurethane matrix. The polyurethane matrix includes an aromatic isocyanate which is present in a quantity ranging from 20% to 50% by weight of the formulation, castor oil which is present in a quantity ranging from 10% to 60% by weight of the formulation, intumescent particles, and a fire retardant present in a quantity ranging from 1% to 40% by weight of the formulation. The fire retardant is selected from the group consisting of disodium ocataborate tetrahydrate, Colemanite (CaB | 01-22-2015 |