Method of staining wood and method of determination of phenolic compounds content in wood

0481624 - ÚIACH 2024 eng P - Patentový dokument
Palcer, J. - Pařil, P. - Baar, J. - Foret, František - Křenková, Jana
Method of staining wood and method of determination of phenolic compounds content in wood.
2019. Vlastník: Ústav analytické chemie AV ČR, v. v. i., Mendelova univerzita v Brně. Datum udělení patentu: 23.09.2020. Číslo patentu: EP3710211. Teritoriální ochrana: národní patent v členském státě EU .
Institucionální podpora: RVO:68081715
Klíčová slova: phenolic compounds * colour change * UV resistance * tannin-containing wood * iron oxide nanoparticles
Obor OECD: Analytical chemistry
https://data.epo.org/publication-server/document?iDocId=7056135&iFormat=0

The present invention provides a method of staining wood using iron nanoparticles, characterized in that it comprises the following steps: - iron oxide nanoparticles are prepared by precipitation of iron(II) and/or iron(III) ions in basic medium, wherein the base is a non-ammonium base, to form iron oxide nanoparticles having a Z-average particle size in the range of 1 to 500 nm, as measured by dynamic light scattering method (DLS), and - wood, preferably tannin-containing wood, is impregnated with a composition containing said iron oxide nanoparticles in concentration within the range of 0.1 g/l to 100 g/l. The method results in improved UV resistance properties of the stained wood. Furthermore, method of determination of phenolic compounds content is provided, using the staining method.
Trvalý link: http://hdl.handle.net/11104/0322207