Patents by Inventor Yvan Lecomte

Yvan Lecomte 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).

  • Patent number: 11040884
    Abstract: The present invention relates to a process for preparing zeolite crystals continuously, comprising the continuous introduction of a composition capable of generating zeolite crystals into at least one crystallization reaction zone subjected to stirring means, giving said composition a flow characterized by a relative Reynolds number Rer of between 40 and 50 000, and the continuous recovery of the crystals formed according to a flow characterized by a net Reynolds number Ren of between 1 and 1500.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: June 22, 2021
    Assignee: Arkema France
    Inventors: Serge Nicolas, Cécile Lutz, Jean-Luc Dubois, Yvan Lecomte
  • Patent number: 10850988
    Abstract: The present invention relates to process for synthesizing zeolite X crystals comprising at least one step of adding seeding agent(s) into a synthesis gel and at least one step of forming zeolite X crystals at a temperature strictly greater than 120° C., preferably equal to or greater than 130° C.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: December 1, 2020
    Assignee: Arkema France
    Inventors: Serge Nicolas, Cécile Lutz, Yvan Lecomte
  • Publication number: 20200216325
    Abstract: The present invention relates to process for synthesizing zeolite X crystals comprising at least one step of adding seeding agent(s) into a synthesis gel and at least one step of forming zeolite X crystals at a temperature strictly greater than 120° C., preferably equal to or greater than 130° C.
    Type: Application
    Filed: March 12, 2018
    Publication date: July 9, 2020
    Applicant: Arkema France
    Inventors: Serge Nicolas, Cécile Lutz, Yvan Lecomte
  • Publication number: 20200010330
    Abstract: The present invention relates to a process for preparing zeolite crystals continuously, comprising the continuous introduction of a composition capable of generating zeolite crystals into at least one crystallization reaction zone subjected to stirring means, giving said composition a flow characterized by a relative Reynolds number Rer of between 40 and 50 000, and the continuous recovery of the crystals formed according to a flow characterized by a net Reynolds number Ren of between 1 and 1500.
    Type: Application
    Filed: March 12, 2018
    Publication date: January 9, 2020
    Applicant: Arkema France
    Inventors: Serge Nicolas, Cécile Lutz, Jean-Luc Dubois, Yvan Lecomte
  • Publication number: 20190006059
    Abstract: A method for preparing a paste-like composition including carbon-based conductive fillers, at least one polymeric binder, at least one solvent, and at least one polymeric dispersant being different from the binder. Also, the paste that can result from said method, and to the uses thereof, in pure or diluted form, in particular for the manufacture of Li-ion batteries and super-capacitors.
    Type: Application
    Filed: May 2, 2018
    Publication date: January 3, 2019
    Applicant: ARKEMA FRANCE
    Inventors: Serge NICOLAS, Alexander KORZHENKO, Amélie MERCERON, Yvan LECOMTE
  • Publication number: 20180166689
    Abstract: A masterbatch in agglomerated solid form including carbon nanofibers and/or nanotubes and/or carbon black, the content of which is between 15 wt % and 40 wt %, preferably between 20 wt % and 35 wt %, relative to the total weight of the masterbatch; at least one solvent; at least one polymer binder, which represents from 1 wt % to 40 wt %, preferably from 2 wt % to 30 wt % relative to the total weight of the masterbatch. Also, a concentrated masterbatch, characterized in that it is obtained by eliminating all or part of the solvent from the masterbatch described previously. Also, a process for preparing said masterbatches and to the uses of the latter, especially in the manufacture of an electrode or of a composite material for an electrode.
    Type: Application
    Filed: January 25, 2018
    Publication date: June 14, 2018
    Applicant: Arkema France
    Inventors: Serge Nicolas, Alexander Korzhenko, Amelie Merceron, Mickael Havel, Yvan Lecomte
  • Patent number: 9987613
    Abstract: The present invention relates to zeolite materials in the form of agglomerates comprising at least one mesoporous zeolite and having both the characteristics of mesoporous zeolites, the properties associated with microporosity and the mechanical properties of zeolite agglomerates without mesoporous zeolite. The invention also relates to the process for preparing the said zeolite materials in the form of agglomerates.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: June 5, 2018
    Assignee: Arkema France
    Inventors: Ludivine Bouvier, Cecile Lutz, Quitterie Persillon, Serge Nicolas, Yvan Lecomte
  • Publication number: 20160193586
    Abstract: The present invention relates to zeolite materials in the form of agglomerates comprising at least one mesoporous zeolite and having both the characteristics of mesoporous zeolites, the properties associated with microporosity and the mechanical properties of zeolite agglomerates without mesoporous zeolite. The invention also relates to the process for preparing the said zeolite materials in the form of agglomerates.
    Type: Application
    Filed: August 4, 2014
    Publication date: July 7, 2016
    Applicant: CECA S.A.
    Inventors: Ludivine BOUVIER, Cecile LUTZ, Quitterie PERSILLON, Serge NICOLAS, Yvan LECOMTE
  • Publication number: 20140319429
    Abstract: A method for preparing a paste-like composition including carbon-based conductive fillers, at least one polymeric binder, at least one solvent, and at least one polymeric dispersant being different from the binder. Also, the paste that can result from said method, and to the uses thereof, in pure or diluted form, in particular for the manufacture of Li-ion batteries and supercapacitors.
    Type: Application
    Filed: November 19, 2012
    Publication date: October 30, 2014
    Inventors: Serge Nicolas, Alexander Korzhenko, Amélie Merceron, Yvan Lecomte
  • Publication number: 20110256454
    Abstract: The present invention relates to a masterbatch in agglomerated solid form comprising: a) carbon nanofibers and/or nanotubes and/or carbon black, the content of which is between 15 wt % and 40 wt %, preferably between 20 wt % and 35 wt %, relative to the total weight of the masterbatch; b) at least one solvent; c) at least one polymer binder, which represents from 1 wt % to 40 wt %, preferably from 2 wt % to 30 wt % relative to the total weight of the masterbatch. The present invention also relates to a concentrated masterbatch, characterized in that it is obtained by eliminating all or part of the solvent from the masterbatch described previously. It also relates to a process for preparing said masterbatches and to the uses of the latter, especially in the manufacture of an electrode or of a composite material for an electrode.
    Type: Application
    Filed: March 21, 2011
    Publication date: October 20, 2011
    Applicant: Arkema France
    Inventors: Serge Nicolas, Alexander Korzhenko, Amelie Merceron, Mickael Havel, Yvan Lecomte