METHOD FOR CHEMICALLY MODIFYING A WOOD PART
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United States of America Patent
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Apr 6, 2023
app pub date -
Feb 17, 2021
filing date -
Feb 26, 2020
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Abstract
A method for chemically modifying a wood part comprising hydroxyl groups comprising: a first step of covalently reacting all or part of the hydroxyl groups with at least one non-polymeric compound comprising at least one group capable of covalently reacting with a hydroxyl group, whereby the wood part is thus covalently linked to residues of the non-polymeric compound(s); after or simultaneously with the first step, a second step of covalently reacting all or part of the residues of the non-polymeric compound(s) with at least one second compound, the first step and the second step being performed in the presence of at least one supercritical fluid.
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