Patents by Inventor Christine Chirat

Christine Chirat has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PREBIOTIC COMPOSITION
    Publication number: 20210069236
    Abstract: The field of the invention is that of prebiotic compositions. In particular, the invention relates to a prebiotic composition comprising galactoglucomannans, and also the production method thereof. The invention also targets the use of this prebiotic composition for increasing production of short-chain fatty acids by bacteria of the intestinal microbiota.
    Type: Application
    Filed: March 25, 2019
    Publication date: March 11, 2021
    Inventors: Christine CHIRAT, Bertrand TOUSSAINT, Vivien DELOULE, Jadwiga CHROBOCZEK, Claire BOISSET-HELBERT
  • METHOD FOR PREPARING A MIXTURE OF MONOSACCHARIDES AND/OR OF OLIGOSACCHARIDES AND/OR OF POLYSACCHARIDES VIA PURIFICATION OF A HYDROLYSATE OF LIGNOCELLULOSIC MATERIALS
    Publication number: 20190071463
    Abstract: The reuse of the sugars from the by-products of the paper and cellulose industries and lignocellulosic biorefineries and facilitating the extraction and the purification of the sugars contained in the hydrolysates of wood. A method for preparing a mixture of monosaccharides and/or of oligosaccharides and/or of polysaccharides via purification of a hydrolysate of lignocellulosic materials, said hydrolysate comprising hemicelluloses in the form of monomers, of oligomers, and optionally of polymers. The method includes at least one step of oxidation of said hydrolysate with at least one oxidant. This method allows a mixture of monosaccharides and/or of oligosaccharides and/or of polysaccharides to be obtained having a reduced quantity of furfural and/or of hydroxymethylfurfural and comprising polymers having a reduced mass molecular in weight and/or in number.
    Type: Application
    Filed: February 24, 2017
    Publication date: March 7, 2019
    Inventors: Christine CHIRAT, Dominique LACHENAL, Jeremy BOUCHER
  • Method for treating chemical pulps by treatment with ozone in the presence of magnesium ions
    Patent number: 10006168
    Abstract: This invention relates to a method for treating chemical paper pulp comprising a step of treating the pulp with ozone followed by a step of alkaline extraction, in which alkaline extraction takes place in the presence of magnesium ions (Mg2+).
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: June 26, 2018
    Assignees: L'Air Liquide Societe Anonyme Pour L'Etude et L'Exploitation Des Procedes Georges Claude, Association de Gestion De L'Ecole Francaise de Papeterie et des Industries Graphiques (AGEFPI), Degremont France, Xylem Water Solutions Herford GmbH, Arkema France
    Inventors: Frederic Pouyet, Dominique Lachenal, Christine Chirat
  • METHOD FOR TREATING CHEMICAL PULPS BY TREATMENT WITH OZONE IN THE PRESENCE OF MAGNESIUM IONS
    Publication number: 20160130751
    Abstract: This invention relates to a method for treating chemical paper pulp comprising a step of treating the pulp with ozone followed by a step of alkaline extraction, in which alkaline extraction takes place in the presence of magnesium ions (Mg2+).
    Type: Application
    Filed: June 13, 2014
    Publication date: May 12, 2016
    Applicants: L'Air Liquid Societe Anonyme pour L'Etude et Explo itation des Procedes Georges Claude, Association de Gestion de L'Ecole Francaise de Papeterie et des Industries Graphiques (AGEFPI), Degremont France, Xylem Water Solutions Herford GmbH, Arkema France
    Inventors: Frédéric Pouyet, Dominique Lachenal, Christine Chirat
  • Method for bleaching chemical paper pulps by final ozone treatment at high temperature
    Patent number: 8268120
    Abstract: A method for treating a prebleached chemical pulp including a step of ozone treatment of the pulp, carried out at a temperature above 60° C., advantageously above 65° C. and even more advantageously above or equal to 70° C.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: September 18, 2012
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Guillaume Pipon, Dominique Lachenal, Christine Chirat, Jean-Christophe Hostachy, Achim Ried
  • METHOD FOR BLEACHING CHEMICAL PAPER PULPS BY FINAL OZONE TREATMENT AT HIGH TEMPERATURE
    Publication number: 20100065233
    Abstract: A method for treating a prebleached chemical pulp including a step of ozone treatment of the pulp, carried out at a temperature above 60° C., advantageously above 65° C. and even more advantageously above or equal to 70° C.
    Type: Application
    Filed: December 11, 2007
    Publication date: March 18, 2010
    Applicant: ITT MANUFACTURING ENTERPRISES, INC.
    Inventors: Guillaume Pipon, Dominique Lachenal, Christine Chirat, Jean-Christophe Hostachy, Achim Ried