Treated porous material
US11332596B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2017 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Dec 27, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2471/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A treated cellulosic material comprising: a cellulosic material having a porous structure defining a plurality of pores, the cellulosic material comprising wood including wood or wood composite materials, at least a portion of the pores containing a treating agent comprising: a polymer comprising a water soluble polyol; and a modifying agent comprising a hydrophobic polyalkylene polyol. A method for preparing a treated cellulosic material comprising: providing a cellulosic material; a first treatment protocol comprising impregnating the cellulosic material with a polymer, the polymer comprising a water-soluble polyol; and a second treatment protocol comprising impregnating the cellulosic material with a modifying agent, the modifying agent comprising a hydrophobic polyalkylene polyol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.