B27N3/00

Method for manufacturing reconstituted bamboo lumber for outdoor bamboo flooring
11148318 · 2021-10-19 ·

In one aspect, a method for manufacturing outdoor bamboo flooring may include steps of: (i) cutting one or more pieces of bamboo lumbers into a predetermined length; (ii) splitting and defibering the bamboo lumbers into reticular fiber bundles; (iii) conducting a high-temperature treatment to dry the bamboo lumbers in step (ii), immersing them with glues, and then conducting a second drying; (iv) performing pressing and curing on the bamboo lumbers treated in step (iii); and (v) cutting the bamboo lumbers in step (iv) into a predetermined of pieces.

METHOD OF MANUFACTURING A WOOD-BASED PANEL
20210308899 · 2021-10-07 ·

The present invention concerns a method for the manufacture of a wood-based panel comprising providing wood fibers which are impregnated with a phenolic resin, the ratio of resin (based on the solids content) to wood fibers being 10 to 50% by weight. The impreganted fibers are pre-compacted in a press at press temperatures below 110° C. to a chemically reactive fiber board and then pressed to compact panels at temperatures between 130 and 180° C.

METHOD AND DEVICE FOR PRODUCING A COMPOSITE WOOD BOARD
20210268685 · 2021-09-02 ·

The method relates to a method for producing a wood material panel. The method includes the following steps: (a) scattering a multitude of wood particles to produce a particulate cake, (b) applying an adhesive to at least some of the wood particles during the scattering and/or prior to the scattering, and (c) pressing of the particulate cake under high pressure and at a high temperature, wherein a quantity of adhesive that is applied to the wood particles is varied depending on its anticipated position in the particulate cake.

Method for increasing the reacitivity of lignin, and a resin composition comprising said lignin
11104774 · 2021-08-31 · ·

The present invention relates to a method for increasing the reactivity of lignin which method comprises the following steps; providing a mixture comprising lignin and an alkali solution wherein the concentration of the alkali solution of the mixture is between 5-50% by weight, storing said mixture for a period of at least 1 day whereby the reactivity of the lignin is increased. The present invention also relates to a resin composition comprising said lignin and use of said resin composition.

Sheet manufacturing apparatus, and sheet manufacturing method

Provided is a sheet manufacturing apparatus that can suppress deposited material from wrapping onto a roller. A sheet manufacturing apparatus according to the invention includes: an air-laying unit that lays material containing fiber and resin; and a humidifying unit that humidifies the deposited material laid by the air-laying unit; the humidifying unit including a first air flow generator that generates air flow passing through the deposited material in a direction intersecting the support surface supporting the deposited material, and supplies droplets or humidified air to the deposited material by the air flow produced by the first air flow generator.

Lignin-based phenolic resin

The present invention relates to a lignin-based phenolic resin, particularly useful in the manufacture of oriented strand boards (OSB).

WOOD PARTICLE BOARDS
20210237404 · 2021-08-05 ·

The present invention relates to a multi layer particle board comprising at least one core layer and two surface layers, the core layer particles being bonded by a resin binder other than a carbohydrate based binder resin, and the surface layer particles being bonded by a carbohydrate based resin, and to a process for making same.

Wooden material panel, in particular in the form of a wood-plastic composite material, and a method for producing the same

The present invention relates to a wooden material panel, in particular a wood-plastic composite material, including particles of wood and at least one plastic that is functionalized with at least one organic compound. At least one decorative layer is provided on at least one side of the wooden material panel.

STACKABLE MOLDED ARTICLES, AND RELATED ASSEMBLIES AND METHODS
20210222482 · 2021-07-22 ·

Molded articles are provided. An exemplary molded article includes an inner panel portion, a main body portion, and a contoured portion extending between and interconnecting the inner panel portion and the main body portion so as to surround the inner panel portion and be surrounded by the main body portion. The contoured portion includes contoured corner segments and contoured elongated segments extending between respective pairs of the contoured corner segments. The contoured corner segments have a first maximum thickness. The contoured elongated segments have a second maximum thickness that is greater than the first maximum thickness. Related methods, assemblies, and apparatus are also provided.

SYSTEM AND METHOD FOR INCREASING DENSITY OF STRUCTURAL COMPOSITES
20210252804 · 2021-08-19 ·

In one embodiment, a method for making a high density structural composite includes depositing a plurality of fibrous materials on or adjacent a first plate or surface. A polymer liquid is deposited onto the plurality of fibrous materials to form a composite mixture. A first cyclic pressure is applied onto the composite mixture to compress the composite mixture. In some embodiments, the cyclic pressure may then be reduced to a valley pressure to complete a pressurization cycle. In some instances, the valley pressure may be below atmospheric pressure to induce trapped air and volatile gases to escape from the composite mixture before curing. The pressurization cycle may be repeated. A second pressure, which may be a constant pressure in some embodiments, may be applied to the composite mixture using, in some embodiments, a second plate until the polymer liquid has at least partially cured or partially solidified.