Boron-containing wood preservatives
US4719110A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1985 |
| Grant date | Jan 12, 1988 |
| Priority date | — |
| Expiry date | Aug 26, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27K5/001
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention provides for boron-containing wood preserving solutions and a method for their preparation. The wood preserving solutions of the invention are noncrystallizable at ambient temperatures and are prepared from a dispersion of a particulated sodium tetraborate, phosphoric acid and water by heating the dispersion at elevated temperatures and for a period of time sufficient to provide a clear solution. The particulated sodium tetraborate and phosphoric are present in the dispersion in a specific molar ratio of 5:3, said ratio being critical to achieving the noncrystallizable characteristic of the wood preserving solutions of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.