Patents by Inventor Sophie Duquesne

Sophie Duquesne 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).

  • Publication number: 20210009980
    Abstract: The present invention relates to novel proteases, more particularly to protease variants having improved activity compared to the protease of SEQ ID N° 1 and the uses thereof for degrading polyester containing material, such as plastic products. The proteases of the invention are particularly suited to degrade polylactic acid, and material containing polylactic acid.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 14, 2021
    Inventors: ALAIN MARTY, SOPHIE DUQUESNE, MARIE GUICHERD, MARLENE VUILLEMIN, MAHER BEN KHALED
  • Publication number: 20200392303
    Abstract: The present invention relates to processes for degrading plastic products and the uses thereof. The processes of the invention particularly comprise a step of amorphizing a plastic product prior to a step of depolymerization. The processes of the invention are particularly useful for degrading a plastic product comprising polyethylene terephthalate and/or polylactic acid. The invention also relates to a method of producing monomers and/or oligomers from a plastic product comprising at least one polyester, particularly polyethylene terephthalate and/or polylactic acid, comprising submitting the plastic product both to an amorphization step and to a depolymerization step.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 17, 2020
    Inventors: MARIE-LAURE DESROUSSEAUX, HELENE TEXIER, SOPHIE DUQUESNE, ALAIN MARTY, MEDIHA ALOUI DALIBEY, MICHEL CHATEAU
  • Publication number: 20200385698
    Abstract: The present invention relates to novel proteases, more particularly to protease variants having improved activity compared to the protease of SEQ ID NO: 1 and the uses thereof for degrading polyester containing material, such as plastic products. The proteases of the invention are particularly suited to degrade polylactic acid, and material containing polylactic acid.
    Type: Application
    Filed: December 21, 2018
    Publication date: December 10, 2020
    Inventors: ALAIN MARTY, SOPHIE DUQUESNE, MARIE GUICHERD, MARC GUEROULT, ISABELLE ANDRE
  • Patent number: 10829754
    Abstract: The present invention relates to novel proteases, more particularly to protease variants having improved activity compared to the protease of SEQ ID NO:1 and the uses thereof for degrading polyester containing material, such as plastic products. The proteases of the invention are particularly suited to degrade polylactic acid, and material containing polylactic acid.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: November 10, 2020
    Assignee: CARBIOS
    Inventors: Alain Marty, Sophie Duquesne, Marie Guicherd, Marlene Vuillemin, Maher Ben Khaled
  • Patent number: 10767026
    Abstract: The present invention relates to processes for degrading plastic products and the uses thereof. The processes of the invention particularly comprise a step of amorphizing a plastic product prior to a step of depolymerization. The processes of the invention are particularly useful for degrading a plastic product comprising polyethylene terephthalate and/or polylactic acid. The invention also relates to a method of producing monomers and/or oligomers from a plastic product comprising at least one polyester, particularly polyethylene terephthalate and/or polylactic acid, comprising submitting the plastic product both to an amorphization step and to a depolymerization step.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: September 8, 2020
    Assignee: CARBIOS
    Inventors: Marie-Laure Desrousseaux, Helene Texier, Sophie Duquesne, Alain Marty, Mediha Aloui Dalibey, Michel Chateau
  • Publication number: 20200277585
    Abstract: The present invention relates to novel esterase, more particularly to esterase variants having improved activity compared to the esterase of SEQ ID No 1 and the uses thereof for degrading polyester containing material, such as plastic products. The esterases of the invention are particularly suited to degrade polyethylene terephthalate, and material containing polyethylene terephthalate.
    Type: Application
    Filed: March 16, 2020
    Publication date: September 3, 2020
    Inventors: VINCENT TOURNIER, HÉLÈNE TEXIER, MARIE-LAURE DESROUSSEAUX, CHRISTOPHER TOPHAM, ISABELLE ANDRE, SOPHIE BARBE, SOPHIE DUQUESNE, ALAIN MARTY
  • Publication number: 20200270591
    Abstract: The present invention relates to novel esterase, more particularly to esterase variants having improved thermostability compared to the esterase of SEQ ID No 1 and the uses thereof for degrading polyester containing material, such as plastic products. The esterases of the invention are particularly suited to degrade polyethylene terephthalate, and material containing polyethylene terephthalate.
    Type: Application
    Filed: March 9, 2020
    Publication date: August 27, 2020
    Inventors: CHRISTOPHER TOPHAM, HÉLÈNE TEXIER, VINCENT TOURNIER, MARIE-LAURE DESROUSSEAUX, SOPHIE DUQUESNE, ISABELLE ANDRE, SOPHIE BARBE, ALAIN MARTY
  • Patent number: 10640657
    Abstract: Intumescent coating composition comprising a polyisocyanate, a polyfunctional isocyanate-reactive compound and an intumescent ingredient, wherein the intumescent ingredient contains at least one or more compounds containing phosphorus, nitrogen and boron atoms and the weight ratio phosphorus to nitrogen in said intumescent ingredient is between 0.5/1 to 1.5/1 and the amount of boron is from 1 to 5 wt % based on the coating composition.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: May 5, 2020
    Assignee: HUNTSMAN INTERNATIONAL LLC
    Inventors: Stefan Priemen, Marc Broekaert, Pierre Bachelet, Fabienne Samyn, Sophie Duquesne, Serge Bourbigot
  • Patent number: 10590401
    Abstract: The present invention relates to novel esterase, more particularly to esterase variants having improved activity compared to the esterase of SEQ ID NO: 1 and the uses thereof for degrading polyester containing material, such as plastic products. The esterases of the invention are particularly suited to degrade polyethylene terephthalate, and material containing polyethylene terephthalate.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: March 17, 2020
    Assignee: CARBIOS
    Inventors: Vincent Tournier, Helene Texier, Marie-Laure Desrousseaux, Christopher Topham, Isabelle Andre, Sophie Barbe, Sophie Duquesne, Alain Marty
  • Patent number: 10584320
    Abstract: The present invention relates to novel esterase, more particularly to esterase variants having improved thermostability compared to the esterase of SEQ ID NO: 1 and the uses thereof for degrading polyester containing material, such as plastic products. The esterases of the invention are particularly suited to degrade polyethylene terephthalate, and material containing polyethylene terephthalate.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: March 10, 2020
    Assignee: CARBIOS
    Inventors: Christopher Topham, Helene Texier, Vincent Tournier, Marie-Laure Desrousseaux, Sophie Duquesne, Isabelle Andre, Sophie Barbe, Alain Marty
  • Publication number: 20190345472
    Abstract: The present invention relates to novel proteases, more particularly to protease variants having improved activity compared to the protease of SEQ ID NO:1 and the uses thereof for degrading polyester containing material, such as plastic products. The proteases of the invention are particularly suited to degrade polylactic acid, and material containing polylactic acid.
    Type: Application
    Filed: December 15, 2017
    Publication date: November 14, 2019
    Inventors: ALAIN MARTY, SOPHIE DUQUESNE, MARIE GUICHERD, MARLENE VUILLEMIN, MAHER BEN KHALED
  • Publication number: 20190233803
    Abstract: The present invention relates to novel esterase, more particularly to esterase variants having improved thermostability compared to the esterase of SEQ ID NO: 1 and the uses thereof for degrading polyester containing material, such as plastic products. The esterases of the invention are particularly suited to degrade polyethylene terephthalate, and material containing polyethylene terephthalate.
    Type: Application
    Filed: July 12, 2017
    Publication date: August 1, 2019
    Inventors: Christopher TOPHAM, Helene TEXIER, Vincent TOURNIER, Marie-Laure DESROUSSEAUX, Sophie DUQUESNE, Isabelle ANDRE, Sophie BARBE, Alain MARTY
  • Publication number: 20190225954
    Abstract: The present invention relates to novel esterase, more particularly to esterase variants having improved activity compared to the esterase of SECS ID NO: 1 and the uses thereof for degrading polyester containing material, such as plastic products. The esterases of the invention are particularly suited to degrade polyethylene terephthalate, and material containing polyethylene terephthalate.
    Type: Application
    Filed: July 12, 2017
    Publication date: July 25, 2019
    Applicant: CARBIOS
    Inventors: VINCENT TOURNIER, HELENE TEXIER, MARIE-LAURE DESROUSSEAUX, CHRISTOPHER TOPHAM, ISABELLE ANDRE, SOPHIE BARBE, SOPHIE DUQUESNE, ALAIN MARTY
  • Publication number: 20190218360
    Abstract: The present invention relates to processes for degrading plastic products and the uses thereof. The processes of the invention particularly comprise a step of amorphizing a plastic product prior to a step of depolymerization. The processes of the invention are particularly useful for degrading a plastic product comprising polyethylene terephthalate and/or polylactic acid. The invention also relates to a method of producing monomers and/or oligomers from a plastic product comprising at least one polyester, particularly polyethylene terephthalate and/or polylactic acid, comprising submitting the plastic product both to an amorphization step and to a depolymerization step.
    Type: Application
    Filed: May 18, 2017
    Publication date: July 18, 2019
    Inventors: MARIE-LAURE DESROUSSEAUX, HELENE TEXIER, SOPHIE DUQUESNE, ALAIN MARTY, MEDIHA ALOUI DALIBEY, MICHEL CHATEAU
  • Patent number: 10287561
    Abstract: The present invention relates to a new isolated polypeptide comprising an amino acid sequence having at least 94%, 95%, 99% or 100% identity to the full length amino acid sequence set forth in SEQ ID NO: 1, and having a polyester degrading activity, and uses thereof.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: May 14, 2019
    Assignees: CARBIOS, INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, INSTITUE NATIONAL DES SCIENCES APPLIQUEES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Pablo Alvarez, Emilie Amillastre, Sophie Duquesne, Alain Marty
  • Publication number: 20180044653
    Abstract: The invention relates to a method for obtaining a mutant oleaginous yeast strain capable of growing on cellobiose as carbon source, comprising overexpressing in said strain two ?-glucosidase enzymes further comprising a N-terminal signal peptide. The invention also relates to a mutant yeast strain obtained by said method.
    Type: Application
    Filed: April 22, 2016
    Publication date: February 15, 2018
    Inventors: Alain Marty, Zhongpeng Guo, Sophie Duquesne, Sophie Bozonnet, Jean-Marc Nicaud, Michael O'Donohue
  • Publication number: 20170313998
    Abstract: The present invention relates to a new isolated polypeptide comprising an amino acid sequence having at least 94%, 95%, 99% or 100% identity to the full length amino acid sequence set forth in SEQ ID NO: 1, and having a polyester degrading activity, and uses thereof.
    Type: Application
    Filed: October 20, 2015
    Publication date: November 2, 2017
    Applicants: CARBIOS, INSTITUT NATIONAL DE LA RECHERCHE AGRONONIQUE, INSTITUT NATIONAL DES SCIENCES APPLIQUEES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: PABLO ALVAREZ, EMILIE AMILLASTRE, SOPHIE DUQUESNE, ALAIN MARTY
  • Patent number: 9499685
    Abstract: The invention relates to a formulation suitable to provide polyurethane, the formulation comprising (a) at least one polyurethane forming mixture; (b) at least one phosphate component selected from the group consisting of ammonium polyphosphate (APP) and melamine phosphates, and mixtures thereof, and; (c) at least one metal or metalloid oxide particle having a maximum particle size of less than 300 ?m, wherein the metal or metalloid is selected from the group consisting of Mg, and Al, and wherein said at least one phosphate component is present in an amount ranging from 20 to 45% by weight based on 100% by weight of the formulation.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: November 22, 2016
    Assignee: Huntsman International LLC
    Inventors: Serge Bourbigot, Sophie Duquesne, Fabienne Samyn, Maryska Muller, Chris Ian Lindsay, Rene Alexander Klein, Giacomo Giannini
  • Publication number: 20160222226
    Abstract: Intumescent coating composition comprising a polyisocyanate, a polyfunctional isocyanate-reactive compound and an intumescent ingredient, wherein the intumescent ingredient contains at least one or more compounds containing phosphorus, nitrogen and boron atoms and the weight ratio phosphorus to nitrogen in said intumescent ingredient is between 0.5/1 to 1.5/1 and the amount of boron is from 1 to 5 wt % based on the coating composition.
    Type: Application
    Filed: October 7, 2014
    Publication date: August 4, 2016
    Inventors: Stefan Priemen, Marc Broekaert, Pierre Bachelet, Fabienne Samyn, Sophie Duquesne, Serge Bourbigot
  • Patent number: 9284422
    Abstract: A method of preparing a transparent polymer material includes mixing mineral nanoparticles selected from nanoparticles of alkaline-earth metal carbonates, alkaline-earth metal sulfates, metallic oxides, oxides of metalloids, and siloxanes, and a composition A including at least one thermoplastic polymer in the molten state selected from polycarbonate (PC), polystyrene (PS) and polymethyl methacrylate (PMMA) in order to obtain a master-batch, the mixture of step i) including at least 25% and at most 75% by weight of the mineral nanoparticles. The master-batch obtained in step i) is mixed with a composition B of a thermoplastic polycarbonate matrix (PCm) in the molten state, to obtain a transparent polymer material including at most 10% by weight of the mineral nanoparticles, preferably at most 5% by weight of the mineral nanoparticles.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: March 15, 2016
    Assignees: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), RENAULT S.A.S.; SOLVAY SA
    Inventors: Virginie Boucher, Alexandra Roos, Sophie Duquesne, Serge Bourbigot, Laure Meynie, Karine Cavalier, Didier Sy, Marc Lacroix