Artificial timber
US11466141B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2019 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Dec 3, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An artificial timber comprises the following components in parts by weight: 35-50 parts of cellulose, 20-35 parts of hemicellulose and 15-35 parts of lignin, wherein the artificial timber has a density of 0.01-0.05 g/cm3. The preparing method comprises: (1) dissolving 15-35 parts by weight of lignin, 35-50 parts by weight of cellulose and 20-35 parts by weight of hemicellulose with an ionic liquid; (2) cleaning and replacing it with water to obtain a lignocellulose hydrogel; and (3) drying the lignocellulose hydrogel to obtain an artificial timber. The artificial timber prepared by the present invention is large in specific area, low in density, low in material energy consumption, moderate in condition and easy for operation. The artificial timber obtained by the present invention is regular in shape and is shaped like a sandy beige cylinder without obvious damage and deformation, which indicates that such artificial timber with high specific area has well molding capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.