C08J2397/02

Powder based balancing layer

A method of manufacturing a building panel with a decorative surface layer, a core and a balancing and/or protective layer, wherein the method includes applying a first layer of a first powder based mix, including wood fibers and a thermosetting binder, on a core; applying a liquid substance on the first powder based mix; drying the first powder based mix; turning the core with the dried first powder based mix such that the first powder based mix points downwards; applying a second layer on the upper part of the core; and curing the first and second layers by providing heat and pressure, wherein the first layer forms the balancing and/or protective layer and the second layer forms the decorative surface layer in the building panel.

Eco-friendly synthetic wood containing coffee grounds and manufacturing method thereof
12065570 · 2024-08-20 · ·

The disclosure provides eco-friendly synthetic wood containing coffee grounds, which uses, as main components, coffee grounds and waste gypsum, which are waste resources, and PETG recycled from waste plastic, thereby contributing to protection of the environment, and which enhances formability, post-processability, and a weather resistance of the synthetic wood by reducing a ratio of shrinking-swelling and a water absorption factor of the synthetic wood, and a manufacturing method thereof.

IN SITU PIGMENTATION OF DECORATIVE MATERIALS
20240270922 · 2024-08-15 ·

A method includes synthesizing pigment in situ in a porous material and includes impregnating the porous material with a first reactant, and subsequently impregnating the porous material with a second reactant to form the pigment in situ. The method is contrasted with applying a pigment to a material via an external surface of the material, where pigment penetration is limited, and the pigment is not protected from environmental hazards such as ultraviolet light. Forming the pigment within the cells of the porous material provides pigmentation throughout the material and protects the pigment over the life of the product.

Wood treatment for dimensional stabilization

A process is provided for treating wood products including lumber, plywood and other engineered wood products comprising the steps of contacting a composition comprising a polypropylene glycol, a high molecular weight polyethylene glycol, a polyether polyol having low solubility in water, or a polytetrahydrofuran, or hydrophobic polyether polyol, with the wood product. The invention also provides wood products comprising a polypropylene glycol, a high molecular weight polyethylene glycol, a polyether polyol having low solubility in water, or a polytetrahydrofuran, or hydrophobic polyether polyol, that have greater dimensional stability compared to an untreated wood product.

Bio-based wearable films and method of preparation thereof

A bio-derived wearable film includes an acid-hydrolyzed palm stem pith, a starch, a cellulose, a synthetic polymer, a plant hydrogel, glycerin, and a dye, and a method of producing the bio-derived wearable film. The bio-wearable film has a water absorption of 0.00 to 0.16% measured according to ASTM D570; a carbonate content of 100 to 200 ppm; and shows no cracks when tested according to ASTM D5419.

METHOD FOR PRODUCING A NON-POROUS COMPOSITE MATERIAL THAT IS WATER-ABSORBENT AND LIPID-ABSORBENT FOR ACTIVE LIQUID COMPOSITIONS
20180265649 · 2018-09-20 ·

The subject matter of the present invention is a method for producing a biodegradable, non-porous composite material made water-absorbent and/or lipid-absorbent, used for obtaining diversely shaped solid objects to be subsequently loaded with active liquid hydrophilic and/or lipophilic compositions comprising at least one active ingredient intended to be delivered into an environment in a controlled and continuous manner. The absorption of the hydrophilic and/or lipophilic composition by said objects is achieved using a network of hydrophilic and/or lipophilic wicks formed in the non-porous material by the co-absorbents. Said method according to the invention is discontinuous, insofar as it comprises storage steps which are steps involving partial interruption of the process insofar as the intermediate products are storable. Indeed, the storage of the fine powder or meal obtained in the first part of the method requires that the maturation thereof allows the distribution of liquid substances in the mass of powder. The storage of the solid objects obtained promotes a flexible management of later operations for their loading with at least one active liquid composition which takes account of the intended purpose of the active objects. Said objects can be used in agriculture, feed supply, veterinary medicine, animal husbandry, animal feed, hygiene, ambient air treatments, perfumery or in the maintenance of green spaces.

NANOMATERIAL-BIOMASS FIBER COMPOSITE AND PREPARATION METHOD THEREOF
20180258254 · 2018-09-13 ·

A nanomaterial-biomass fiber composite and preparation method thereof. The biomass fibers are cut or sliced, and then dried. The dried biomass fibers are mixed with a nanomaterial and conveyed to the preheating cylinder of a defibrator for cooking treatment. The cooked mixture is pushed between the grinding discs of the defibrator for hot grinding treatment. The resulting material is then hot pressed to obtain the nanomaterial-biomass fiber composite material. The preparation method benefits from simple operation, low cost, low energy consumption, suitability for industrialized production, and wide application prospect in the field of production of binderless fiberboard.

ADVANCED MICROFIBERS AND RELATED METHODS
20180215076 · 2018-08-02 ·

This invention provides a finely ground biomass material used to create biomass-containing plastics having a smooth surface, while also preventing creation of unwanted color including those created by the Maillard reaction which results from a combination of sugars, protein, heat and acid or base chemicals. The present invention also provides for methods to prevent agglomeration of small particles into larger particles which can produce irregular surfaces on biomass-based plastics, including thin film plastics, especially thin film plastics less than 4 mil and other thin film plastics that can become too large to use in thin-film plastic production. For the purpose of this invention, plastic resins can be any gas or liquid hydrocarbon or fermentation-based resins.

Fractionation and depolymerisation of lignocellulosic material

Biomass is processed in a close to equivolumetric mixture of an alcohol and water at elevated temperature, in the presence of a metal catalyst and hydrogen. During this one-pot fractionation process, the hot liquor disentangles the polymeric biomass and depolymerises lignin and hemicellulose, while the catalyst and reductive environment are essential to accumulate and target stable products at high yield (such as phenolics and polyols, respectively). The process is particularly industrially relevant because its overcomes difficult and complex separation protocols, at place in classic biorefinery technology; the process foresees simple product recuperation in one process step into the three fractions; the solid carbohydrate pulp (mainly cellulose) is retrieved upon filtration, while phase separation of n-butanol and water occurs below 125 C. The three resulting product streams provide a versatile platform for down-stream conversion towards added-value bio-based chemicals.

Method of producing ultra-low density fiber composite materials

A method of producing ultra-low density fiber composite (ULDC) foam materials using natural fibers with gas injection through liquid foaming is disclosed, wherein in a particular embodiment includes also cellulose filaments. The method includes a continuous overflow foaming process and a novel apparatus to produce the ULDC materials. The disclosed ULDC composite foam produced includes moisture, mold, decay and fire resistant properties which can be used for building thermal and acoustic insulations, protection packaging, air filter products, hygiene products. The apparatus comprise a vessel, counter rotating dual impellor, a plurality of baffles and gas injection that produce.