Protecting wood from wood degrading organisms
US4220688A · kind A · utility
15Cited by
11References
16Claims
0Family size
Inventors
Key dates
| Filing date | Aug 31, 1978 |
| Grant date | Sep 2, 1980 |
| Priority date | — |
| Expiry date | Aug 31, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/662
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Wood is impregnated with a solution of tannic acid followed by impregnation with a solution of a metal in the form of a salt. The metal selected is one that will complex with both the impregnated tannic acid and the wood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.