Patent classifications
B27D1/08
Tubular implement and method for manufacturing a tubular implement
A tubular implement, such as a container, in particular a container (pipe for transport) for food or beverages such as a drinking straw, includes a first part having a sheet of wood veneer rolled to form the tubular implement in the form of a cylinder.
Method for preparing environmentally-friendly high-strength wood composite material
Disclosed is a method for preparing an environmentally-friendly high-strength wood composite material, which includes the following steps: S1. pulverizing wood into a wood flour, adding the wood flour to an acid solution to obtain a first mixture, ball milling the first mixture to obtain a ball milled mixture, and filtering the ball milled mixture, to obtain a dually-treated wood flour; S2. adding the dually-treated wood flour to a first alkaline solution, and performing a neutralization reaction, to obtain a second mixture; S3. adding an alkaline solution to the second mixture to remove part of lignin, to obtain a lignin-partially removed wood flour; S4. washing the lignin-partially removed wood flour with anhydrous ethanol and drying, to obtain a dried lignin-partially removed wood flour; S5. subjecting the dried lignin-partially removed wood flour to hot pressing, followed by cooling, to obtain the environmentally-friendly high-strength wood composite material.
Ammonia treatment of densifiable cellulosic biomass feedstock
In on example, a method of plasticizing at least a portion of lignin within a lignocellulosic biomass by mixing the biomass with anhydrous ammonia at a sub-ambient temperature and continuously conveying the mixture of lignocellulosic biomass and anhydrous ammonia through a reactor. At least a portion of the anhydrous ammonia is removed from the mixture. The lignocellulosic biomass having plasticized lignin is molded into a repeated shape.
Ammonia treatment of densifiable cellulosic biomass feedstock
In on example, a method of plasticizing at least a portion of lignin within a lignocellulosic biomass by mixing the biomass with anhydrous ammonia at a sub-ambient temperature and continuously conveying the mixture of lignocellulosic biomass and anhydrous ammonia through a reactor. At least a portion of the anhydrous ammonia is removed from the mixture. The lignocellulosic biomass having plasticized lignin is molded into a repeated shape.
PRESS AND METHOD FOR PRODUCING A CURVED LAMINATED VENEER LUMBER MODULE
Method and press for producing a curved laminated wood module including a plurality of laminated veneer lumber (LVL) boards, where the press includes a convex mold, where the mold is arranged on a frame, and where the press includes an upper part adapted to be placed on the plurality of LVL boards, where the press further includes a plurality of pulling brackets and pulling means attached between the frame and the pulling brackets, where the pulling means are arranged to pull the pulling brackets towards the frame until the plurality of LVL boards bears completely on the mold.
PRESS AND METHOD FOR PRODUCING A CURVED LAMINATED VENEER LUMBER MODULE
Method and press for producing a curved laminated wood module including a plurality of laminated veneer lumber (LVL) boards, where the press includes a convex mold, where the mold is arranged on a frame, and where the press includes an upper part adapted to be placed on the plurality of LVL boards, where the press further includes a plurality of pulling brackets and pulling means attached between the frame and the pulling brackets, where the pulling means are arranged to pull the pulling brackets towards the frame until the plurality of LVL boards bears completely on the mold.