Patents by Inventor Stephane Cadra

Stephane Cadra 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: 11335954
    Abstract: Electrolytes comprising at least one lithium salt and at least two ionic liquids, at least one of which is an ionic liquid resulting from the association of at least one cation complying with the following formula (I): In which: R1 is an acyclic hydrocarbon group; n is an integer ranging from 0 to 3; m is an integer ranging from 1 to 4; and at least one Y anion.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: May 17, 2022
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Stéphane Cadra, Jonathan Szymczak, Matthieu Le Digabel, Agnès Biller
  • Publication number: 20210114070
    Abstract: A solution comprising at least one protic solvent, at least one monomer comprising an (alkyl)acrylic, (alkyl)acrylate or (alkyl)acrylamide group, at least one crosslinking agent comprising at least two groups chosen from (alkyl)acrylic, (alkyl)acrylate or (alkyl)acrylamide groups, at least one photopolymerization initiator and at least one agent chosen from alkali metal halides, alkali metal phosphates, alkali metal sulfates and mixtures thereof; or—of a polymer material capable of being obtained by polymerization of the solution defined above comprising a polymer resulting from the polymerization of the monomer(s) and of the crosslinking agent(s) as defined above and trapping, at the center thereof, a liquid phase comprising at least one agent as defined above; for the trapping of at least one toxic chemical agent.
    Type: Application
    Filed: March 26, 2019
    Publication date: April 22, 2021
    Inventors: Stéphane CADRA, Benoit BLONDEL
  • Publication number: 20210009737
    Abstract: A solution that can be used for trapping at least one toxic chemical agent, the solution comprising at least one protic solvent, at least one monomer comprising an (alkyl)acrylic, (alkyl)acrylate or (alkyl)acrylamide group, at least one crosslinking agent comprising at least two groups chosen from the (alkyl)acrylic, (alkyl)acrylate or (alkyl)acrylamide groups, at least one photopolymerization initiator, at least one thixotropic filler and at least one agent chosen from alkali metal halides, alkali metal phosphates, alkali metal sulfates and mixtures thereof.
    Type: Application
    Filed: March 26, 2019
    Publication date: January 14, 2021
    Inventors: Stéphane Cadra, Benoit Blondel, Axel Jaeghers, Axelle Champion
  • Patent number: 10759921
    Abstract: A method for producing an aqueous foam comprising (a) preparing a solution comprising at least one surfactant and at least one protic polar solvent, (b) bringing the solution into contact with a pressurised gas to obtain a two-phase mixture, and (c) injecting the two-phase mixture to obtain the aqueous foam after expansion or dispersion of the gas. The solution further comprises at least one gelling compound chosen from a non-nitrogenous polysaccharide and gelatin. An aqueous foam obtained by such method and uses of the same, in particular in the fields of decontamination, the purification of effluents, or the defusing or containment of explosive devices or suspected explosive devices.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: September 1, 2020
    Assignee: COMMISSARIAT A'LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Stephane Cadra, Jean-Felix Salas, Alexia Balland-Longeau, Francois Garonne, Sylvain Faure, Bruno Imbert
  • Publication number: 20200079733
    Abstract: Ionic liquids comprising the association of a cation have the following formula (I), in which —R1 is an acyclic hydrocarbonated group, n is a whole number between 0 and 3, and m is a whole number between 1 and 4, and an anion selected from a nitrate anion, a phosphate anion or an imidide anion.
    Type: Application
    Filed: March 21, 2018
    Publication date: March 12, 2020
    Inventors: Stéphane Cadra, Jonathan Szymczak, Matthieu Le Digabel, Agnès Biller
  • Publication number: 20200020984
    Abstract: Electrolytes comprising at least one lithium salt and at least two ionic liquids, at least one of which is an ionic liquid resulting from the association of at least one cation complying with the following formula (I): In which: R1 is an acyclic hydrocarbon group; n is an integer ranging from 0 to 3; m is an integer ranging from 1 to 4; and at least one Y anion.
    Type: Application
    Filed: March 21, 2018
    Publication date: January 16, 2020
    Inventors: Stéphane Cadra, Jonathan Szymczak, Matthieu Le Digabel, Agnès Biller
  • Publication number: 20190031979
    Abstract: A specific hydrogel material for decontaminating areas comprising organophosphorus compounds.
    Type: Application
    Filed: January 26, 2017
    Publication date: January 31, 2019
    Inventors: Stéphane CADRA, Hervé GALIANO, Benoit BLONDEL
  • Publication number: 20180355139
    Abstract: The invention relates to a method for producing an aqueous foam comprising the following steps: (a) preparing a solution comprising at least one surfactant and at least one protic polar solvent, (b) bringing the solution into contact with a pressurised gas, whereby a two-phase mixture is obtained, and (c) injecting the two-phase mixture, whereby, after expansion or dispersion of the gas, the aqueous foam is obtained. According to the invention, the solution further comprises at least one gelling compound chosen from a non-nitrogenous polysaccharide and gelatin. The invention also relates to the aqueous foam obtained by such a method and to the uses of same, in particular in the fields of decontamination, the purification of effluents, or the defusing or containment of explosive devices or suspected explosive devices.
    Type: Application
    Filed: November 17, 2015
    Publication date: December 13, 2018
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Stephane Cadra, Jean-Felix Salas, Alexia Balland-Longeau, Francois Garonne, Sylvain Faure, Bruno Imbert
  • Patent number: 10040756
    Abstract: The invention relates to sulfonate compounds with the following formula (I): in which: R2 represents an ethyl group, an n-propyl group or an isopropyl group; when R2 is an ethyl group, R1 is an ethyl group, an n-propyl group or an n-butyl group; when R2 is an n-propyl group, R1 is a methyl group, an ethyl group, an n-propyl group or an n-butyl group; or when R2 is an isopropyl group, R1 is a methyl group, an ethyl group, an n-propyl group or an n-butyl group. Use of these compounds as electrolyte solvent for lithium batteries.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: August 7, 2018
    Assignee: RENAULT s.a.s.
    Inventors: Stephane Cadra, Charlotte Beord, Nathalie Pierre, Herve Galiano
  • Patent number: 10040885
    Abstract: A method for preparing a polymeric material doped with at least one first metal element and at least one second metal element, including: a) copolymerization of a first monomer containing a first metal element and of a second monomer containing a chelating group of a second metal element, to obtain a polymeric material containing (i) recurrent units deriving from the polymerization of the first monomer, the recurrent units containing the first metal element and (ii) recurrent units deriving from the polymerization of the second monomer, the recurrent units containing chelating groups of a second metal element, and when the first metal element is different from the second metal element, b) contacting the material from a) with a solution containing the second metal element, in return for which the second metal element is complexed with the chelating groups, where b) is optional when the first and second metal element are identical.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: August 7, 2018
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Stephane Cadra, Pierre Pouponneau, Alexia Balland Longeau
  • Patent number: 10030114
    Abstract: The invention relates to a method for the specific production of a polymer material doped by a first metal element, which is gold, and at least one second metal element, the first metal element and the at least one second metal element being identical or different from each other.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: July 24, 2018
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Stéphane Cadra, Pierre Pouponeau, Alexia Balland Longeau
  • Publication number: 20170190860
    Abstract: The invention relates to a method for the specific production of a polymer material doped by a first metal element, which is gold, and at least one second metal element, said first metal element and said at least one second metal element being identical or different from each other.
    Type: Application
    Filed: May 20, 2015
    Publication date: July 6, 2017
    Inventors: Stéphane CADRA, Pierre POUPONEAU, Alexia BALLAND LONGEAU
  • Publication number: 20170088649
    Abstract: The invention relates to a method for preparing a polymeric material doped with at least one first metal element and at least one second metal element, said at least one first metal element and said at least one second metal element being identical or different from each other, said method comprising: a) a step for copolymerization of at least one first monomer comprising at least one first metal element and of at least one second monomer comprising at least one chelating group of at least one second metal element, in return for which a polymeric material is obtained comprising recurrent units from the polymerization of said first monomer, said recurrent units comprise said at least one first metal element and comprising recurrent units from the polymerization of said second monomer, said recurrent units comprising chelating groups of at least one second metal element; and when said first metal element is different from said second metal element, said method further comprising a step b) for putting the mat
    Type: Application
    Filed: February 6, 2015
    Publication date: March 30, 2017
    Inventors: Stephane CADRA, Pierre POUPONNEAU, Alexia BALLAND LONGEAU
  • Publication number: 20160200748
    Abstract: The disclosure relates to compounds of following formula (I): where: X corresponds to a repeat unit of following formula (II): or to a sequence of said repeat units of formula (II), and R1 and R2 are each independently an alkyl group. The disclosure further relates to the use of these compounds as organic solvents of at least one lithium salt.
    Type: Application
    Filed: August 22, 2014
    Publication date: July 14, 2016
    Inventors: Hervé Galiano, Stéphane Cadra, Nathalie Pierre, Bruno Ameduri, Ali Alaaeddine
  • Publication number: 20160149264
    Abstract: The disclosure relates to fluorinated compounds of following formula (I): where: X1 is a sulfur atom; X2 and X3 are an oxygen atom or sulfur atom provided that, if one of said X2 and X3 is a sulfur atom, the other of said X2 and X3 is an oxygen atom and vice versa; and R1, R2 and R3 are each independently a fluorine atom or hydrogen atom, provided that at least one of said R1, R2 and R3 is a fluorine atom. The disclosure further relates to use of these compounds as organic solvents of at least one lithium salt.
    Type: Application
    Filed: July 9, 2014
    Publication date: May 26, 2016
    Inventors: Hervé GALIANO, Stéphane Cadra, Bruno Ameduri, Vincent Besse, Ali Alaaeddine
  • Publication number: 20160137597
    Abstract: The invention relates to sulfonate compounds with the following formula (I): in which: R2 represents an ethyl group, an n-propyl group or an isopropyl group; when R2 is an ethyl group, R1 is an ethyl group, an n-propyl group or an n-butyl group; when R2 is an n-propyl group, R1 is a methyl group, an ethyl group, an n-propyl group or an n-butyl group; or when R2 is an isopropyl group, R1 is a methyl group, an ethyl group, an n-propyl group or an n-butyl group. Use of these compounds as electrolyte solvent for lithium batteries.
    Type: Application
    Filed: February 18, 2014
    Publication date: May 19, 2016
    Inventors: Stephane CADRA, Charlotte Beord, Nathalie Pierre, Herve Galiano
  • Publication number: 20150155600
    Abstract: The invention relates to electrolytic compositions comprising: at least one coordination complex comprising lithium and one or several ligands thereof, this (these) ligand(s) corresponding to a phenate compound comprising at least one trifluoromethyl group; and at least one carbonate solvent.
    Type: Application
    Filed: June 7, 2013
    Publication date: June 4, 2015
    Inventors: Herve Galiano, Stephane Cadra, Jerome Thibonnet, Daniel Lemordant
  • Publication number: 20150093654
    Abstract: The invention relates to compositions comprising at least one fluorinated compound of the following formula (I): wherein: X corresponds to a unit of the following formula (II): or to a sequence of said unit of formula (II), wherein R3, R4, R5 et R6 represent, independently of each other, a halogen atom, a hydrogen atom, a perfluoroalkoxy group, a perfluoroalkyl group provided that at least one of said R3, R4, R5 et R6 represents a fluorine atom, a perfluoroalkoxy group or a perfluoroalkyl group; R1 and R2 represents, independently of each other, an alkyl group; and comprising at least one lithium salt.
    Type: Application
    Filed: April 19, 2013
    Publication date: April 2, 2015
    Applicant: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Hervé Galiano, Charlotte Beord, Nathalie Pierre, Stéphane Cadra, Bruno Ameduri, Ali Alaaeddine, Noureddine Ajellal
  • Patent number: 8822713
    Abstract: Coordination complexes of at least one metal element with at least one aromatic monomer are provided. The at least one aromatic monomer may comprise at least one aromatic ring, which ring comprising at least one ethylenic group, at least one hydroxide group —OH, at least one oxime group and salts thereof. The metal element may be in the form of a metal alkoxide.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: September 2, 2014
    Assignee: Comissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Alexia Balland Longeau, Stéphane Cadra, Jérôme Thibonnet
  • Publication number: 20120217432
    Abstract: Coordination complexes of at least one metal element with at least one aromatic monomer are provided. The at least one aromatic monomer may comprise at least one aromatic ring, which ring comprising at least one ethylenic group, at least one hydroxide group —OH, at least one oxime group and salts thereof. The metal element may be in the form of a metal alkoxide.
    Type: Application
    Filed: November 17, 2010
    Publication date: August 30, 2012
    Applicant: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Alexia Balland Longeau, Stéphane Cadra, Jérôme Thibonnet