Process for supercritical or subcritical partial delignification and filling of a lignocellulosic material

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United States of America Patent

PATENT NO 11820041
APP PUB NO 20200164542A1
SERIAL NO

16700123

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Abstract

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The invention concerns a process for treating lignocellulosic material, preferably wood, comprising the following successive steps:

    (1) extracting lignin by a fluid in supercritical or subcritical phase to extract 40 to 85% by weight % of the lignin of the initial material;(2) filling by a filling compound, preferably in the presence of a fluid in supercritical or subcritical phase; and(3) finishing, so as to obtain a composite material formed by a three-dimensional network of filling compound that is transformed and incorporated in a network of cellulose and lignin.

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Patent Owner(s)

Patent OwnerAddress
SAS WOODOO75001 PARIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boitouzet, Timothée Paris, FR 10 39

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