Method for treating exterior lumber products
US12122931B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 12, 2023 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | May 26, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/2296
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of treating a surface of wood products to inhibit the uptake of moisture into the wood by providing an aqueous formulation comprising polyethylene-vinyl acetate in water, 2-99 percent polyethylene-vinyl acetate by weight. The aqueous formulation is applied to the surface of wood products, wherein the wood products remain outdoors or in a damp environment having 60% or greater relative humidity. The aqueous formulation is allowed to dry and form a micro-film on the surface of the wood products. The moisture content in the wood products is maintained at 16 percent or less. A pesticide effect on the surface of the wood products is produced, inhibiting infestation of the wood products by insects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.