Methods of conferring fire retardancy to wood and fire-retardant wood products
US9669564B2 · kind B2 · utility
6Cited by
37References
56Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2014 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Nov 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/266
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process is provided for treating wood products including lumber, plywood and other engineered wood products comprising the steps of applying an aqueous fire-retardant impregnate and applying a coating to the surface of the wood product. In one embodiment, said process confers fire-retardant properties to the wood products sufficient to pass the extended burn test of ASTM E-84. The present invention also provides fire retardant wood products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.