A thermal insulation material is made of a plurality of insulating components. The plurality of insulating components includes a first insulating component made of wood shavings. The plurality of insulating components includes a second insulating component made of cellulose fibers, wherein the cellulose fibers are arranged in voids formed between the wood shavings. The cellulose fibers of the second insulating component are produced from decor paper or sanitary paper.

The present invention relates to a batchwise or continuous process for producing single-layer one multilayer lignocellulosic materials, comprising the process steps of (I) mixing the components of the individual layers, (II) scattering the mixture(s) produced in process step (I) to give a mat, (III) optionally precompacting the scattered mat and (IV) hot-pressing the optionally precompacted mat,
by using, in process step (I), for the core of multilayer lignocellulosic materials or for single-layer lignocellulosic materials, a mixture (component A) comprising a.sub.1) 50% to 99% by weight, preferably 70% to 97% by weight, more preferably 80% to 95% by weight and especially 85% to 92% by weight of organic isocyanate having at least two isocyanate groups or mixtures thereof and a.sub.2) 1% to 50% by weight, preferably 3% to 30% by weight, more preferably 5% to 20% by weight and especially 8% to 15% by weight of organic carboxylic acid, carboxylic anhydride, carbonyl chloride or mixtures thereof and a.sub.3) 0% to 49% by weight, preferably 0% to 10% by weight and more preferably 0% to 5% by weight of auxiliaries or mixtures thereof.

The present invention relates to a batchwise or continuous process for producing single-layer one multilayer lignocellulosic materials, comprising the process steps of (I) mixing the components of the individual layers, (II) scattering the mixture(s) produced in process step (I) to give a mat, (III) optionally precompacting the scattered mat and (IV) hot-pressing the optionally precompacted mat,
by using, in process step (I), for the core of multilayer lignocellulosic materials or for single-layer lignocellulosic materials, a mixture (component A) comprising a.sub.1) 50% to 99% by weight, preferably 70% to 97% by weight, more preferably 80% to 95% by weight and especially 85% to 92% by weight of organic isocyanate having at least two isocyanate groups or mixtures thereof and a.sub.2) 1% to 50% by weight, preferably 3% to 30% by weight, more preferably 5% to 20% by weight and especially 8% to 15% by weight of organic carboxylic acid, carboxylic anhydride, carbonyl chloride or mixtures thereof and a.sub.3) 0% to 49% by weight, preferably 0% to 10% by weight and more preferably 0% to 5% by weight of auxiliaries or mixtures thereof.

The invention relates to a plant-based flexible material and a process for preparation thereof. The flexible material is useful as an alternative to leather, formed without the use of animal products. In one aspect, the present invention provides a process for preparing a plant-based flexible material, comprising the steps of: a) providing a dispersion of lignocellulosic biomass in an agueous-based solvent and further comprising one or more binders, wherein the one or more binders comprises at least one sulphated polysaccharide; b) heating the dispersion to a temperature of at least 35? C. to form a heated dispersion; and c) drying the heated dispersion to form the flexible material.

The present description relates to in-plane isotropic products derived from cellulosic filament based compositions that are substantially free of binders; and comprising inorganic fillers with an average particle size of less than 5 m; and methods for producing these in-plane isotropic products. The method comprising providing a cellulosic filament substantially free of any binder; providing an inorganic filler comprising an average particle size of less than 5 m; mixing the cellulosic filament and the filler to produce a slurry; transferring the slurry in a preforming jig to produce a wet mat in the jig; and hot press compression molding the mat to produce the in-plane isotropic product. The inorganic fillers were uniquely shown substantially useful to accelerate the final dewatering (drying) in the hot press at 150 C./250 psi and to eliminate delamination issue insitu the molded products. Furthermore, the hot press molded products were remarkably improved with respect to the surface quality and the dimensional stability with outstanding increase in its tensile, flexural and impact properties, all with respect to the cellulosic filament inorganic filler-free molded products.

The present description relates to in-plane isotropic products derived from cellulosic filament based compositions that are substantially free of binders; and comprising inorganic fillers with an average particle size of less than 5 m; and methods for producing these in-plane isotropic products. The method comprising providing a cellulosic filament substantially free of any binder; providing an inorganic filler comprising an average particle size of less than 5 m; mixing the cellulosic filament and the filler to produce a slurry; transferring the slurry in a preforming jig to produce a wet mat in the jig; and hot press compression molding the mat to produce the in-plane isotropic product. The inorganic fillers were uniquely shown substantially useful to accelerate the final dewatering (drying) in the hot press at 150 C./250 psi and to eliminate delamination issue insitu the molded products. Furthermore, the hot press molded products were remarkably improved with respect to the surface quality and the dimensional stability with outstanding increase in its tensile, flexural and impact properties, all with respect to the cellulosic filament inorganic filler-free molded products.

A method of repairing a contoured structure is provided. The method includes forming and curing on the contoured structure an armature formed of materials that are curable at a temperature lower than a service limit temperature of materials of the contoured structure and removing the armature from the contoured structure and placing the armature with prepregs laminated thereon in an oven to heat cure the armature and the prepregs to form a repair patch.

A continuous process forms a unitary mat on a line having at least two conveyors spaced from each other. The process includes combining the isocyanate, an isocyanate catalyst, and a plurality of lignocellulosic particles to form a mixture and a self-polymerization product of the isocyanate in-situ in the mixture. The process also includes forming the unitary mat from the mixture on a first conveyer and transferring the unitary mat from the first conveyor to a second conveyor across a predetermined distance while maintaining structural integrity of the unitary mat. The lignocellulosic particles have a moisture content of 0.5 to 30 weight percent of water. Moreover, the continuous process is free of a step of adding water to the isocyanate, the isocyanate catalyst, the lignocellulosic particles, and/or the unitary mat.

A continuous process forms a unitary mat on a line having at least two conveyors spaced from each other. The process includes combining the isocyanate, an isocyanate catalyst, and a plurality of lignocellulosic particles to form a mixture and a self-polymerization product of the isocyanate in-situ in the mixture. The process also includes forming the unitary mat from the mixture on a first conveyer and transferring the unitary mat from the first conveyor to a second conveyor across a predetermined distance while maintaining structural integrity of the unitary mat. The lignocellulosic particles have a moisture content of 0.5 to 30 weight percent of water. Moreover, the continuous process is free of a step of adding water to the isocyanate, the isocyanate catalyst, the lignocellulosic particles, and/or the unitary mat.

The present invention relates to a process for manufacturing a wood-based board, a wood-based board as use of a liquid coating composition comprising at least one particulate filler material and at least one binder for in-line coating of wood-based boards.