Wood preservatives and methods for treating wood
US9327423B2 · kind B2 · utility
0Cited by
8References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2014 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Jan 7, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31989
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Treated wood, wood preservative compositions, and methods for treating wood generally include applying to the wood a wood preservative composition comprising a boron containing compound and a pH-reduced black liquor comprising soluble lignin, wherein the boron-containing compound is soluble in the pH-reduced black liquor and wherein the pH-reduced black liquor is derived from a carbonation process or an acid addition process of black liquor having phase-separated solid lignin and/or dense liquid lignin removed therefrom, and drying the wood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.