The present invention describes the production of wood panel boards, or the like, in which a surface modifying agent is mixed with a polyol to prepare a stable surface modifying agent polyol composition. The resultant composition is reacted with an isocyanate, and in particular, a polymeric di-isocyanate resin, in the presence of wood chips, fibers or the like, for the production of lignocellulosic based panels, such as oriented strand board (OSB), MDF, HDF and particle board panel products. In use, the surface modifying agent polyol composition is mixed with the polymeric di-isocyanate resin and the resultant mixture is applied to a lignocellulosic material, such as wood chips or fibers, immediately prior to hot pressing of the mixture to produce the panels. Sticking of the panels to the metal press belts or press plates typically used during production, is reduced or eliminated.

The invention relates to a binder for cellulose-containing materials which contains a) hydroxyaldehyde, b) a protein-containing component of animal origin and c) a component comprising phenolic oligomers. The invention likewise relates to the use of the binder according to the invention for producing a composite material, to a process for producing a composite material and to a composite material obtainable by the process according to the invention.

The method of making a compressed biocomposite body includes compressing a mass of biocomposite material comprised of discrete particles and a network of interconnected glucan-containing mycelia cells in the presence of heat and moisture into a compressed body having a density in excess of 18 pcf. Compression may take place batch wise in a press or continuously in a path of narrowing cross-section defined by a series of heated rollers.

The present disclosure relates to a panel comprising a structured lacquer surface, having a base panel, a melamine resin layer, an adhesion promoter layer and a lacquer-containing top coat, the melamine resin layer being provided on a surface of the base layer, the adhesion promoter layer being provided on the melamine resin layer and the lacquer-containing top coat being provided on the adhesion promoter layer, the lacquer-containing top coat being structured. The disclosure also relates to a method for producing a panel of this type with a structured lacquer surface.

A plank has a first portion with at least three layers. The first layer is of a plant material, and has an inner surface that includes a nonwoven fabric or a fiberglass mesh. The second layer is of an adhesive paper material that includes a macromolecular glue where the macromolecular glue is 50-55% melamine, 35-40% plasticizer, and 3-5% formaldehyde. The third layer is one of bamboo, wood, or paper. The plank has a second portion, which may be of a plastic composite base material or a magnesium oxide composite base material. When the second portion is of a plastic composite material, the first portion is fused to the second portion by cold pressing or a polyurethane reactive adhesive. When the second material is of a magnesium oxide composite base material, the first portion is thermally pressed to the second portion by cold pressing, hot pressing or a polyurethane reactive adhesive.

The present invention relates to the use of a bonding resin prepared by providing an aqueous solution comprising at least one biobased product selected from tannin, starch, soy protein, glycerol, chitin, pectin, dextrose or other carbohydrates, or a mixture thereof and mixing the aqueous solution with one or more of certain crosslinkers such as ethers, and optionally one or more additives. The bonding resin is used in the manufacture of laminates, mineral wool insulation or wood products, such as engineered wood products, such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF) or particle boards. Preferably, the bonding resin does not comprise lignin.

A plank has a first portion with at least three layers. The first layer is of a plant material, and has an inner surface that includes a nonwoven fabric or a fiberglass mesh. The second layer is of an adhesive paper material that includes a macromolecular glue where the macromolecular glue is 50-55% melamine, 35-40% plasticizer, and 3-5% formaldehyde. The third layer is one of bamboo, wood, or paper. The plank has a second portion, which may be of a plastic composite base material or a magnesium oxide composite base material. When the second portion is of a plastic composite material, the first portion is fused to the second portion by cold pressing or a polyurethane reactive adhesive. When the second material is of a magnesium oxide composite base material, the first portion is thermally pressed to the second portion by cold pressing, hot pressing or a polyurethane reactive adhesive.

The present disclosure provides for aqueous, curable binder compositions, as well as articles and products comprising assemblies of matter comprising mineral fibers, synthetic fibers, natural fibers, cellulosic particles and sheet materials comprising the binder compositions disclosed herein.

A compressed article formed by a composite material comprising a thermoset polymer and a wood material, a method of producing the same and the use of the novel articles. The composite material has a continuous matrix of a hardened thermoset polymer and, distributed within the matrix, wood chips which are at least partially encased by the thermoset polymer, said article having a water absorbency of less than 1% by weight upon immersion into water over a time period of at least 168 h at room temperature. The articles can be used in structures that are frequently contacted with water.

Sheet material includes at least two layers of material, wherein a first layer of material forms more than half the thickness of the sheet material and is mainly built up from wood particles glued by means of a first binder and pressed. The first binder is thermosetting, wherein the second layer of material is present on the surface of the aforementioned sheet material and is mainly built up from particulate particles glued by a second binder and pressed. The second binder is thermoplastic and/or elastomeric.