Method of treating lumber foundations in buildings
US11655389B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Aug 30, 2021 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Aug 30, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/2296
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention provides method of treating a surface of exterior wood outside of buildings to inhibit the uptake of moisture into the wood by spraying on the surface of the wood an aqueous formulation consisting of one or more film forming non-chloride, long-chain polymers. The aqueous formulation forms a clear micro-film. Preferably, the long-chain polymer is polyethylene-vinyl acetate, polyurethane, or a combination thereof, wherein the clear micro-film contains no detectable volatile organic compounds. A clear colorant is added to the aqueous formulation to verify treatment. The clear colored micro-film maintains moisture content in the wood at 16 percent or less, allows for continued visual inspection of the surface of the wood for termite damage, does not rub off, get diluted with water, or become damaged by workers and pets who come into contact with the clear colored microfilm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.