B27N3/00

ENGINEERED WOOD ADHESIVES AND ENGINEERED WOOD THEREFROM

The present disclosure provides an engineered wood precursor mixture. The mixture includes a wood substrate(s) and a binder reaction mixture present in a range of from 3 to 25 parts per one hundred (100) parts of the dry weight of the wood substrate. The binder composition includes an aqueous portion. The aqueous portion includes a carbohydrate-containing component, including glucose, fructose, sucrose, or mixture thereof, in a range of from 2 wt % to 85 wt % based on a dry weight of the binder reaction mixture. The aqueous portion further includes 1 wt % to 33 wt % of a base based on a dry weight of the binder reaction mixture, wherein a pH of the aqueous portion is greater than 10. The binder composition further includes a partially non-dissolved polypeptide-containing component, in a range of from 20 wt % to 85 wt % based on the dry weight of the binder reaction mixture.

IMPROVED AMINO RESIN PERFORMANCE WITH SULFONATED LIGNIN
20230132358 · 2023-04-27 · ·

A resin system and methods of making resin system wherein lignosulfonate is added to urea-formaldehyde and melamine-urea-formaldehyde adhesives. Lignosulfonate is added to the resins which improves the performance characteristics of the adhesive while reducing environmental impact by consuming byproducts from other industrial processes. The resin system includes a urea-formaldehyde (UF) resin or melamine-urea-formaldehyde (MUF), prepared in at least two stages wherein the UF resin or MUF resin has a molar ratio (MR) of total moles formaldehyde to total moles urea plus, if present, the one or more melamine compounds of from about 0.25:1 to about 2.50:1, and wherein one or more lignosulfonate compounds are included in an amount of from about 0.1-30 wt. %, based on a total weight of the resin system, and wherein the resin system has a buffer capacity of 2-400 mL of 0.1 N HCl by the ATV Method for a period of time of at least about 20 days at 25° C.

In-line coated decorative wood-based boards

The present invention relates to a process for manufacturing a decorative wood-based board, to a decorative wood-based board, to the use of at least one dry or liquid coating composition comprising at least one inorganic particulate filler material and at least one binder for in-line coating of decorative wood-based boards, and to the use of at least one dry or liquid coating composition comprising at least one inorganic particulate filler material and at least one binder for improving the mechanical properties of a decorative wood-based board. Furthermore, it relates to the use of a decorative wood-based board in flooring applications, furniture, walls, roof panels, display cabinets, storage units, loudspeakers and shop-fittings.

BIO-BASED BINDERS AND METHODS FOR PRODUCING SAME

The present invention concerns the field of binders suitable for wood panel manufacturing. In particular, the invention regards a composition of bio-binder comprising unrefined biological material and a reactive prepolymer. In a further aspect a method for producing bio-based binders is presented. In an even further aspect the present invention describes bio-based formaldehyde-free binders obtainable from the described methods and their uses. The invention further describes methods for gluing articles and products obtainable from the methods of the present invention.

Binder Materials

A method for producing a shaped article comprising: a) providing a binder, which has been produced by a process of: (i) mixing (A) fungi or glucan and (B) starch with an alkaline agent to form an alkaline composition; and mixing the alkaline composition with an acidic agent to form the binder; or (ii) mixing (A) fungi or glucan and (B) starch with an acidic agent to form an acidic composition; and mixing the acidic composition with an alkaline agent to form the binder; (b) forming a binder composition by mixing the binder with filler material; (c) shaping the binder composition into a three-dimensional shape; and (d) curing the binder composition to form a shaped article having said three-dimensional shape, wherein steps c) and d) can be carried out simultaneously or separately, and wherein during one or both of steps c) and d) pressure is applied to the binder composition.

Wood Chip Material and Method of its Production
20220314486 · 2022-10-06 · ·

A wood chip material, especially a fireproof water resistant wood chip material, especially a fireproof water resistant wood chip material to make oriented strand boards which consists of a mixture containing 30 to 43 weight percent of wood chips, 53 to 61.9 weight percent of an aqueous solution of silicate, 2 to 5 weight percent of aluminium hydroxide, 1 to 3 weight percent of water, 0.1 to 1 weight percent of a stabilizer of the aqueous solution of silicate, and a hardener of the aqueous solution of sodium silicate in the concentration of 0.5 to 5 weight percent to the pure aqueous solution of sodium silicate providing always that the density of the aqueous solution of sodium silicate ranges from 1370 to 1400 kg/m.sup.3 and the SiO.sub.2 to NA.sub.2O molar ratio in the aqueous solution of sodium silicate ranges from 3.2 to 3.4. A method of production of a wood chip material, especially method of production of a fireproof water resistant wood chip material, especially method of production of a fireproof water resistant wood chip material to make oriented strand boards according to which, as the first step, the aluminium hydroxide is mixed with water, then wood chips are added into the mixture and everything is stirred thoroughly in such a manner that a wood chip mixture is formed, then the stabilizer of the aqueous solution of sodium silicate is added in the aqueous solution of silicate and after that the hardener of the aqueous solution of sodium silicate is admixed in this solution. Then the solution is stirred for 1 to 10 minutes until a binding solution is formed. Then the wood chip mixture is poured, at continuous stirring, in the binding solution and everything is stirred thoroughly again. Then the resulting mixture is poured in the place of application.

METHOD FOR PRODUCING MULTI-LAYERED LIGNOCELLULOSE MATERIALS HAVING A CORE WITH SPECIAL PROPERTIES AND AT LEAST ONE UPPER AND ONE LOWER COVER LAYER

The present invention relates to a process for the batchwise or continuous, preferably continuous production of multilayer lignocellulose materials with a core and with at least one upper and one lower outer layer, comprising the following steps: a) mixing of the components of the individual layers separately from one another, b) layer-by-layer scattering of the mixtures (for the core layer and for the outer layers) to give a mat, c) precompaction after the scattering of the individual layers, d) application of a high-frequency electrical field before, during and/or after the precompaction, and then e) hot pressing,
where, in step a),
for the core, the lignocellulose particles A) [component A)] are mixed with B) from 0 to 25% by weight of expanded plastics particles with bulk density in the range from 10 to 150 kg/m.sup.3 [component B)], C) from 1 to 15% by weight of one or more binders selected from the group consisting of aminoplastic resin and organic isocyanate having at least two isocyanate groups [component C)], D) from 0 to 3% by weight of ammonium salts [component D)], E) from 0 to 5% by weight of additives [component E)] and F) from 0.1 to 3% by weight of alkali metal salts or alkaline earth metal salts from the group of the sulfates, nitrates, halides and mixtures of these [component F)],
and for the outer layers, the lignocellulose particles G) [component G)] are mixed with H) from 1 to 15% by weight of one or more binders selected from the group consisting of aminoplastic resin and organic isocyanate having at least two isocyanate groups [component H)], I) from 0 to 2% by weight of ammonium salts [component I)], J) from 0 to 5% by weight of additives [component J)] and K) from 0 to 2% by weight of alkali metal salts or alkaline earth metal salts from the group of the sulfates, nitrates, halides and mixtures of these [component K)],
wherein, after step a), the mixture for the core comprises, based on the total dry weight of the mixture of components A) to F) from 3 to 15% by weight of water, the mixture(s) for the outer layers comprise(s), based on the total dry weight of the mixture(s) of components G) to K), from 5 to 20% by weight of water, and the following conditions are met: component F)≧1.1•component K) and [component F)+component D)]≧1.1•component K)+component I

Composite Wood Board
20230193037 · 2023-06-22 ·

In a stack of composite wood boards, the wood boards comprise wood particles and an organic binder.

SYSTEM FOR PRODUCING ARTIFICIAL OSSEOUS TISSUE AND METHOD FOR PRODUCING SAME
20170354502 · 2017-12-14 ·

The present invention relates to a system for producing artificial osseous tissue comprising: a client computer acquiring an image information of a subject bone tissue from an imaging unit that picks up an image of a subject bone tissue of a patient to generate a 3D image information; a server computer identifying the subject bone tissue based on the image information of the subject bone tissue received from the client computer, generating a 3D image information of at least one therapeutic bone tissue model corresponding to the subject bone tissue, and transmitting the 3D image information of the at least one therapeutic bone tissue model to the client computer; and a machining unit for fabricating an artificial bone tissue based on the 3D image information of the therapeutic bone tissue model determined from the server computer.

Composite Wood Board
20170349751 · 2017-12-07 ·

In a stack of composite wood boards, the wood boards comprise wood particles and an organic binder.