Solidified water soluble wood preservative and method of making the same
US6001279A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 1996 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | May 3, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2916
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A solidified water soluble wood preservative characterized by a solidified elongate body of a boron compound known as having beneficial effects as a wood preservative, in combination with copper oxide. The method of making the solidified water soluble wood preservative includes the following steps. Firstly, mixing powder-form copper oxide (CuO) and a powder-form boron compound known as having beneficial effects as a wood preservative to form a powder mixture. Secondly, heating the powder mixture at temperatures in excess of 700 degrees celsius until the powder mixture melts to form a homogeneous liquid mixture. Thirdly, forming the homogeneous liquid mixture into a body. Fourthly, annealing the body at temperatures of between 300 and 550 degrees celsius.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.