B27N3/002

METHODS OF MANUFACTURING FORMALDEHYDE-FREE MOLDED PRODUCTS AND RELATED PARTS
20230013214 · 2023-01-19 ·

The present invention provides a moldable mixture containing large portion of agricultural fibers and small portion of a binding agent and a flow-promoting filler material. The moldable mixture is substantially free of formaldehyde, with low moisture content and high draw ratio. The present invention also provides methods of manufacturing molded products and related parts, based on the claimed moldable mixture. Molded products (830) and related parts such as runner (810) and plank (820) with light weight, high density and more complex profile are manufactured by the claimed methods including steps of providing required materials for a moldable mixture, mixing the provided materials to form a moldable mixture, shaking the moldable mixture in preparing for compression molding and compression molding the moldable mixture to form molded products and related parts.

METHOD OF PREPARING PLANT-DERIVED MATERIAL

A method of preparing a fiberboard is described herein, the method comprising treating a particulate plant-derived material with plasma to obtain a plasma-treated particulate material, and compressing the plasma-treated particulate material. Further described herein is a fiberboard comprising a particulate plant-derived material, and being substantially devoid of an adhesive, or substantially devoid of an adhesive which is urea-formaldehyde resin, melamine-formaldehyde resin, polyurethane resin, epoxy resin, and/or phenol formaldehyde resin. The fiberboard may be characterized by a density of less than 500 kg/m.sup.3, a particulate plant-derived material particle area of at least 1 mm.sup.2, and/or a particulate plant-derived material water contact angle of no more than 20°.

Method for manufacturing compact

A method for manufacturing a compact includes a mixing step of mixing a fiber and a powder of a binder to obtain a mixture; an accumulating step of accumulating the mixture to form a web; a humidifying step of adding water to the web; and a forming step of heating and pressurizing the water-added web to obtain a compact. The binder binds between fiber molecules by the addition of water. The powder has an average particle diameter (D50) of 20.0 μm or less.

Hollow board
11691393 · 2023-07-04 · ·

The present disclosure relates to a hollow board 1 with first and second main surface layers 3, 5. A plurality of distance elements connecting the first and second main surface layers and maintain a predetermined distance there between. The main surface layers include at least a layer of high-density fiber, HDF, board, and a plurality of distance elements are distributed in the space between the main surface layers, and at least some comprise at least one elongate HDF board strip 15 which is oriented such that its longitudinal edges interconnect the first and second main surface layers 3, 5. The HDF boards of the surface layers and of the at least some of the distance elements comprise wood particles bonded by a resin including an isocyanate, such as methylene diphenyl di-isocyanate, MDI.

CONTAINER FLOORING
20220411177 · 2022-12-29 · ·

A method for providing container flooring for a container, including: providing a plurality of container flooring boards, each including a plurality of strand layers including strands of wood bonded together, at least a top strand layer and a bottom strand layer of the container flooring board having its strands substantially aligned in a first direction, and a dimension of the container flooring board in a second direction that is perpendicular to the first direction being selected to extend laterally between sides of the container in use; and arranging the container flooring boards inside the container, each container flooring board being positioned so that the strands of the top strand layer and the bottom strand layer are substantially aligned longitudinally relative to the container and the container flooring board extends laterally between the sides of the container, and respective edges of adjacent container flooring boards abut one another.

Lignocellulosic composites and methods of making same

The present application discloses improved lignocellulosic composite materials comprising a lignocellulosic component, a bis-electrophile, and a polynucleophile. Exemplary embodiments comprise a dianhydride and a polyol.

Biopolymer and isocyanate based binder and composite materials

A binder has at least one isocyanate and at least one biopolymer mixed with water. The biopolymer may be a biopolymer nanoparticle or cooked and chemically modified starch. Optionally, the binder may also include urea. The biopolymer and water are mixed, and the isocyanate is added to the mixture. The binder may have a viscosity that is suitable for being sprayed on a substrate to make a composite material, for example a viscosity of 700 cP or less or 500 cP or less at 40° C. The substrate may be wood, another lignocellulosic material, or synthetic or natural fibers. In particular examples, the binder is used to make no added formaldehyde wood composites including particle board and fiberboard. Alternatively, the binder may have a higher viscosity and be used to make plywood.

Process for producing fibrous board

An object of the present invention is to provide a process for producing fiberous board with which fiberous board exhibiting high bending strength and high stiffness at a wide range of heating temperatures and a wide range of compressing and heating times. In the present invention, fiberous board having an initial flexural modulus of at least 300 MPa in three point bending test is obtained by forming a web by correcting sheath-core composite fibers of which a core component is formed from a copolymer of ethylene glycol and terephthalic acid and the sheath component is formed from ethylene glycol, adipic acid, terephthalic acid, isophthalic acid; and/or diethylene glycol. The web is then compressed in a direction of thickness and heated, so that the sheath component softens and melts and the sheath-core composite fibers are melt bonded together and molded into a flat plate shape.

Production of oriented strand board

A method of making a wood particle board containing sticking type resin coated wood particles wherein the top of a layup of the coated wood particles is smoothed to provide a smooth a top surface on the layup and a release agent is applied on the top surface and the so coated layup is consolidated into a board in a consolidating press under heat and pressure with the coated top surface in direct contact with a press platen.

ENERGY-STORING TEMPERATURE CONTROL MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF

The present invention provides an energy-storing temperature control material, and belongs to the technical field of temperature control materials. In the energy-storing temperature control material provided in the present invention, the organic synthetic fiber based phase-change material has a three-dimensional dispersion effect, and can form a network constraint for remaining phase-change materials to reinforce mechanical properties of the materials, thereby fixing shapes of the materials and avoiding a liquid-crystal phase separation phenomenon in the phase-change process. The phase-change energy storage agent can absorb and release the heat by means of solid-liquid phase conversion of the material, to achieve the temperature control effect; and the phase-change temperature regulator can regulate a phase-change temperature range of the phase-change material, to make the energy-storing temperature control material suitable for climatic features of northern China.