Abstract: Disclosed is a method for the use, as fire-retardant, of an aqueous composition including chitosan and at least one mineral filler, the inorganic filler being for example chosen from the group of mineral fillers in laminae, in particular chosen from the group consisting of talc, montmorillonite, saponite, sepiolite, bentonite, smectite, hectorite, kaolinite, halloysite and mica, and mixtures thereof.
November 3, 2017
Date of Patent:
May 3, 2022
UNIVERSITÉ DE PAU ET DES PAYS DE L'ADOUR, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT TECHNOLOGIQUE FCBA
Abstract: The present invention concerns a compound of formula (I): wherein: —n is an integer comprised between 1 and 7; —X1 is in particular a radical of formula —CH2—S—(CH2)k—S—; —A1 is in particular a linear or branched alkylene radical comprising from 2 to 30 carbon atoms, and —X2 is in particular an alkoxy group of formula ORa, wherein Ra is a linear or branched alkyl group comprising from 1 to 10 carbon atoms.
December 16, 2015
Date of Patent:
August 14, 2018
UNIVERSITÉ DE BORDEAUX, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT DES CORPS GRAS ETUDES ET RECHERCHES TECHNIQUES-ITERG, INSTITUT POLYTECHNIQUE DE BORDEAUX, INSTITUT TECHNOLOGIQUE FCBA
Henri Cramail, Stéphane Jean-Pierre Albert Grelier, Frédérique Pichavant, Denilson Da Silva Perez, Carine Alfos, Maud Suzanne Chemin
Abstract: The present invention relates to a method for the depolymerization of lignin or of derivatives thereof, including a step of heating the lignin or the derivatives thereof in the presence of a hydroxide of general formula M(OH)n or of a mixture of M(OH)n hydroxides, where M is a metal of the alkali or alkaline-earth family and n is equal to 1 or 2, and where the mass ratio between said hydroxide or mixture of hydroxides and the lignin or the derivatives thereof is comprised between around 0.5 and around 20.
March 17, 2011
March 14, 2013
INSTITUT TECHNOLOGIQUE FCBA
Frédéric Goettmann, Philippe Makowski, Denilson Da Silva Perez, Michel Petit-Conil