Modifying method for wood elements
US6632326B1 · kind B1 · utility
13Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2000 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Sep 27, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27K3/36
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention's modifying method for wood elements includes a step for soaking wood elements in one or a mixture of acetic anhydride, acetic acid, or chloroacetic acid; and a step for acetylating the impregnated wood elements in a gaseous phase. This method makes it possible to reduce the time required for the step of acetylating the wood elements, simplifies the process, reduces fabrication costs, and enables fabrication of a wood fiberboard having high dimensional stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.