The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 2024
Filed:
Apr. 08, 2021
Universite DE Lorraine, Nancy, FR;
Institut Mines Telecom, Palaiseau, FR;
Universite Libanaise, Beirut, LB;
Nicolas Brosse, Vezelise, FR;
Romain Kapel, Saint Max, FR;
Rodolphe Sonnier, Grenoble, FR;
Roland El Hage, Aintoura el metn, LB;
César Segovia, Epinal, FR;
Karina Antoun, Vandoeuvre les Nancy, FR;
Maria Moussa, Kobayat, LB;
UNIVERSITE DE LORRAINE, Nancy, FR;
INSTITUT MINES TELECOM, Palaiseau, FR;
UNIVERSITE LIBANAISE, Beirut, LB;
Abstract
A flame retardant treatment of a lignocellulosic material, which includes: optionally steam exploding the lignocellulosic material, impregnating the optionally steam-exploded lignocellulosic material, in or with an aqueous solution, from 0.5% to 10% of phytic acid and from 1% to 30% of urea, based on the total weight of the aqueous solution, optionally drying of the impregnated lignocellulosic material, until the impregnated lignocellulosic material has a moisture content from 5% to 20% by weight, cooking the impregnated and optionally dried lignocellulosic material, the resulting flame-retarded lignocellulosic material including a phosphorous content originating from the phytic acid from 0.1% to 10% by weight. Also, the resulting flame-retarded lignocellulosic material and the use thereof for manufacturing flame-retarded composite materials based on plant fibres, woven or nonwoven flame-retarded flexible materials based on plant fibres, and particularly textiles, flame-retarded materials based on wood fibres and/or on wood particles, and particularly flame-retarded wood panels.