A method of extrusion additive manufacturing for veneer applications may include, but is not limited to, loading material into an extruder, generating a mixture from the material, and fabricating the veneer product. Fabricating the veneer product may include depositing a first portion of the mixture on a working surface of the extruder, actuating the working surface, and depositing an additional portion of the mixture on the working surface of the extruder proximate to the first position of the mixture deposited on the working surface. Where the first portion of the mixture and the additional portion of the mixture form a first layer of the veneer product, fabricating the veneer product may include actuating a nozzle of the extruder and depositing an additional layer of the mixture on the first layer of the veneer product. The material may include wood product and a binder.

A wood or engineered wood structural panel, such as, but not limited to, OSB (“oriented strand board”) or plywood, that is both fire-resistant and water resistant. The panel is factory-coated with a product that provides fire resistance. The treatment gives it a Fire-Resistant (FR) performance (for use in a one- or two-hour rated assembly). The panel also is overlaid or coated in a factory setting with a weather/water resistive barrier (WRB). The structural panel thus combines a fire-resistant structural sheathing and WRB product in one integrated panel produced at a factory prior for installation at a job site.

A floor board including a decorative surface layer applied to a substrate, where the substrate has MDF or HDF material at a side edge thereof, where the side edge is treated both with an impregnation agent and/or a sealing agent based on a superabsorbing material. Also a method for manufacturing such floor boards.

A hydroxy functional alkyl polyurea is disclosed having the formula presented in claim 1, wherein R comprises an isocyanurate moiety, biuret moiety, allophonate moiety, glycoluril moiety, benzoguanamine moiety, polyetheramine moiety, and/or polymeric moiety different from a polyetheramine and having an Mn of 500 or greater; wherein each RI is independently a hydrogen, alkyl having at least 1 carbon, or a hydroxy functional alkyl having 2 or more carbons and at least one R.sub.1 is a hydroxy functional alkyl having 2 or more carbons; and n is 2-6. Further disclosed is a coating comprising: a film-forming resin; and a hydroxy functional alkyl polyurea crosslinker having the formula presented in claim 4, wherein R.sub.2 is a substituted or unsubstituted C.sub.1 to C.sub.36 alkyl group, an aromatic group, an isocyanurate moiety, biuret moiety, allophonate moiety, glycoluril moiety, benzoguanamine moiety, polyetheramine moiety, and/or polymeric moiety different from a polyetheramine having an Mn of 500 or greater, wherein each R.sub.1 is independently a hydrogen, an alkyl having at least 1 carbon, or a hydroxy functional alkyl having 2 or more carbons and at least one R.sub.1 is a hydroxy functional alkyl having 2 or more carbons; and n is 2-6, and when R.sub.2 is a substituted or unsubstituted C.sub.1 to C.sub.36 alkyl group the film-forming resin comprises COOH functionality that reacts with the polyurea to form an ester linkage.

Other hydroxy functional alkyl polyurea compounds, polymers made with the same, and compositions comprising the same are also disclosed as are substrates coated at least in part with or formed with any of the compositions described herein.

A floor board including a decorative surface layer applied to a substrate, where the substrate has MDF or HDF material at a side edge thereof, where the side edge is treated both with an impregnation agent and/or a sealing agent based on a superabsorbing material. Also a method for manufacturing such floor boards.

A method of manufacturing a wood-based board. The method includes applying at least one first fibre mat including a first mix comprising lignocellulosic particles and a binder on a carrier, applying a second fibre mat including a second mix including cellulosic particles and a binder on said at least one first fibre mat, and pressing said at least one first fibre mat into a base layer and the second fibre mat into a surface layer simultaneously, thereby forming a wood-based board. Also, to such a wood-based board.

The present invention relates to a multi layer particle board comprising at least one core layer and two surface layers, the core layer particles being bonded by a resin binder other than a carbohydrate based binder resin, and the surface layer particles being bonded by a carbohydrate based resin, and to a process for making same.

The invention relates to systems and techniques for manufacturing articles containing cellulosic material, a tackifier, and a binder, and related processes of making and using the cellulosic articles. In particularly exemplary embodiments, the manufactured articles are door skins, sometimes known as door facings, and doors made from the door skins. The article contains a lipophilic cellulosic material, a tackifier, and a binder.

A board consisting at least of a substrate formed at least of a gypsum-based and/or cement-based basic material layer. The board is provided with a chamfer extending through the basic material layer.

The present invention concerns a method for the manufacture of a wood-based panel comprising providing wood fibers which are impregnated with a phenolic resin, the ratio of resin (based on the solids content) to wood fibers being 10 to 50% by weight. The impreganted fibers are pre-compacted in a press at press temperatures below 110° C. to a chemically reactive fiber board and then pressed to compact panels at temperatures between 130 and 180° C.