Composition and process for coloring and preserving wood
US4313976A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 1980 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Jun 13, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27K5/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Method and composition for simultaneously coloring and preserving wood by a single application of a contacting solution comprising any one of several known water soluble chemical preservatives containing any or all of the following heavy metals: copper, chromium and zinc, to which preservative solution has been added one or more specific naphthalene or benzene derivative compounds having hydroxy, amino or sulfonic acid functional groups attached to a ring carbon atom. Without departing from the teachings of this invention the wood may first be treated with the preservative solution and then contacted with the benzene or naphthalene derivative compound. It is also possible to apply the benzene or naphthalene derivative to the wood initially, followed by the application of the preservative solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.