Lanthanide impregnated wood composition and method for permanently depositing water insoluble lanthanide derivatives into wood materials
US4973501A · kind A · utility
12Cited by
19References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 1989 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | May 9, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/662
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Described is a wood composition and a method for its preparation by treating wood with a first aqueous solution comprising one or more lanthanide derivatives, optionally rinsing with water and finally treating the wood with a second aqueous solution comprising one or more bases or one or more acid salts thereby precipitating a water-insoluble lanthanide complex within the wood. In addition, the method may be practiced by reversing the order of the treatment steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.