Patents Assigned to ÉCOLE NATIONALE SUPÉRIEURE DE CHIMIE DE RENNES
  • Publication number: 20240018674
    Abstract: The invention relates to the use of a ternary alloy having the formula SixTiyNiz, wherein x, y and z are natural numbers, for use in electrolysis and photoelectrolysis, in particular photo-oxidation of water. One aspect of the invention relates to a method for the manufacture of an electrode, the method comprising a step of heating a carrier comprising a surface having a layer of silicon on which a layer of TiO2 is disposed, the layer of TiO2 being covered with a layer of NiO; the heating step being carried out at a temperature above 1,000° C., and preferably between 1,150° C. and 1,250° C. The invention also relates to an electrode comprising a carrier, said electrode having either: an outer surface on which particles of a ternary alloy having the formula SixTiyNiz are positioned, wherein x, y and z are natural numbers, and wherein the particles form protrusions; or an outer surface consisting of a layer of said alloy, the layer comprising protrusions.
    Type: Application
    Filed: November 29, 2021
    Publication date: January 18, 2024
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE NATIONALE SUPERIEURE DE CHIMIE DE RENNES, UNIVERSITE D'AIXMARSEILLE, UNIVERSITE DE RENNES, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE RENNES
    Inventors: Maxime DUFOND, Jean Manuel DECAMS, Lionel SANTINACCI, Gabriel LOGET
  • Publication number: 20230397490
    Abstract: An active light-emitting layer composition including a thermally activated delayed fluorescence (TADF) molecule with TADF properties as a host material and a luminescent molecule with circularly polarized (CP) properties as a dopant. Also, a light-emitting device, such as an organic light-emitting diodes (OLED), including the active light-emitting layer made of this composition.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 7, 2023
    Applicants: UNIVERSITE DE RENNES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS -, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE RENNES, ECOLE NATIONALE SUPERIEURE DE CHIMIE DE RENNES, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Ludovic FAVEREAU, Jeanne CRASSOUS, Sitthichok KASEMTHAVEECHOK, Kais DHBAIBI, Grégory PIETERS, Benoît RACINE, Etienne QUESNEL
  • Publication number: 20230255105
    Abstract: The present invention relates to compounds simultaneously having thermally activated delayed fluorescence (TADF), circularly polarised luminescence (CPL) and aggregation-induced emission enhancement (AIEE) properties. The invention also relates to the use of such compounds as a photocatalyst or as a dopant, in particular in the emitting layers of light-emitting diodes (OLEDs), as well as light-emitting devices or light-emitting diodes (OLEDs) comprising such compounds.
    Type: Application
    Filed: July 9, 2021
    Publication date: August 10, 2023
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITÉ PARIS-SACLAY, UNIVERSITÉ DE RENNES 1, ECOLE NATIONALE SUPÉRIEURE DE CHIMIE DE RENNES, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE RENNES
    Inventors: Grégory Pieters, Ludovic Favereau, Laurelie Poulard, Max Coehlo, Lucas Frederic, Sitthichok Kasemthaveechok, Jeanne Crassous
  • Patent number: 10149810
    Abstract: The invention relates to a composition (C1) including: (a) at least one compound of formula (I) in which each of the radicals Z is a hydrogen atom or a monovalent radical (Z1); (b) at least one compound of formula (IV); (c) a compound of formula (V). The invention also relates to a method for preparing said composition and to the use thereof in cosmetics.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: December 11, 2018
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, 'ÉCOLE NATIONALE SUPÉRIEURE DE CHIMIE DE RENNES
    Inventors: Dimitri Perusse, Thierry Benvegnu, Jêrome Guilbot, Hervé Rolland
  • Patent number: 9956154
    Abstract: The invention relates to a surfactant composition including at least one compound of formula (I): in which each of the radicals Z is a hydrogen atom or (Z1); at least one compound of formula (IV); one compound of formula (V); and one compound of formula (VI). The invention also relates to a method for preparing said composition and to the use thereof in cosmetics.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 1, 2018
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQU-CNRS, ÉCOLE NATIONALE SUPÉRIEURE DE CHIMIE DE RENNES
    Inventors: Dimitri Perusse, Thierry Benvegnu, Loïc Lemiegre, Jêrome Guilbot, Hervé Rolland
  • Patent number: 9776178
    Abstract: The invention relates to a ruthenium alkylidene complex comprising a 1-aryl-3-cycloalkyl-imidazolin-2-ylidene ligand, the cycloalkyl group of said 1-aryl-3-cycloalkyl-imidazolin-2-ylidene ligand being a cyclic secondary aliphatic alkyl.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: October 3, 2017
    Assignees: Ecole Nationale Superieure De Chimie De Rennes, Centre National De La Recherche Scientifique CNRS
    Inventors: Marc Mauduit, Mathieu Rouen
  • Patent number: 9688641
    Abstract: The invention relates to a process for preparing an asymmetrical imidazolium salt of formula (1A), in which R1 is an aromatic group, R2 is chosen from a cyclic secondary aliphatic alkyl group and a heteroalkyl group, R3 and R4 are chosen, independently of one another, from the group consisting of hydrogen, a halide and an alkyl group, and A? is an anion. The process comprises a first substep of forming a reaction mixture by bringing one equivalent of an aniline into contact with one equivalent of a compound bearing an amine group, in the presence of at least four point five equivalents of a Brønsted acid. The process also comprises a second substep of forming a solution comprising one equivalent of a dicarbonyl, one equivalent of formaldehyde, and at least four point five equivalents of the Brønsted acid, and adding thereto the reaction mixture formed in the first substep. The mixture is left to stir for a predetermined time at a predetermined temperature.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: June 27, 2017
    Assignees: Ecole Nationale Superieure De Chimie De Rennes, Centre National De La Recherche Scientifique CNRS
    Inventors: Marc Mauduit, Olivier Basle, Mathieu Rouen
  • Patent number: 9556296
    Abstract: This invention describes a process for metathesis of olefins from feedstocks obtained from the Fischer-Tropsch process, using as catalyst a ruthenium alkylidene complex comprising a saturated or unsaturated, dissymmetrical N-heterocyclic carbene (NHC) ligand.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: January 31, 2017
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, IFP ENERGIES NOUVELLES, ECOLE NATIONALE SUPERIEURE DE CHIMIE DE RENNES
    Inventors: Helene Olivier-Bourbigou, Francois Hugues, Severine Forget, Mathieu Rouen, Marc Mauduit
  • Publication number: 20150125888
    Abstract: A process for enzymatically converting a furanoside substrate in a product of interest, includes contacting the substrate with an enzyme in presence of an alcohol acceptor, wherein the enzyme is preferably Araf51, and wherein the product is preferably an alkyl furanoside. The mutant Araf51 enzyme showing improved transglycosylation activity in comparison with the native wild-type (wt) Araf51 enzyme, and a method for screening the mutants are also described.
    Type: Application
    Filed: April 19, 2013
    Publication date: May 7, 2015
    Applicants: ECOLE NATIONALE SUPERIEURE DE CHIMIE DE RENNES (ENSCR), CENTRE NATIOANAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: Richard Daniellou, Caroline Nugier-Chauvin, Vincent Ferrieres, Alize Pennec, Ilona Chlubnova
  • Publication number: 20140323671
    Abstract: This invention describes a process for metathesis of olefins from feedstocks obtained from the Fischer-Tropsch process, using as catalyst a ruthenium alkylidene complex comprising a saturated or unsaturated, dissymmetrical N-heterocyclic carbene (NHC) ligand.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 30, 2014
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, IFP ENERGIES NOUVELLES, ECOLE NATIONALE SUPERIEURE DE CHIMIE DE RENNES
    Inventors: Helene OLIVIER-BOURBIGOU, Francois HUGUES, Severine FORGET, Mathieu ROUEN, Marc MAUDUIT
  • Patent number: 8835628
    Abstract: The present invention relates to catalytically active compounds of the general formula (1) that are highly tunable, as well as to a method of their preparation and their use in any type metathesis reaction. The new compounds of the present invention comprise activation sites that allow for specific catalyst design. Particularly, side chains and ligands allow efficient activity and specificity control of the catalysts of the present invention.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: September 16, 2014
    Assignees: Ecole Nationale Superieure de Chimie de Rennes, Centre National de la Recherche Scientifique CNRS
    Inventors: Marc Mauduit, Frédéric Caijo, Christophe Crevisy
  • Patent number: 8569467
    Abstract: The invention relates to C-glycose compounds of formula (I) where: S? is a monosaccharide radical or a polysaccharide radical derived from a monosaccharide or polysaccharide S; R is a linear or branched alkyl radical; and Z is an ethylenyl CH?CR1(R2) or an acetylenyl C?CR3 radical. The invention also relates to a method for preparing C-glycoside compounds of formula (III), characterized in that the method consists of a step of reacting a sugar (S), in an aqueous solvent or in the absence of a solvent and in the presence of an organic or mineral base (B), with a phosphonate of formula (II) according to the following reaction pattern: Formulas (II), (III).
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: October 29, 2013
    Assignees: Ecole Nationale Supérieure de Chimie de Rennes, Armor Proteines
    Inventors: Thierry Benvegnu, Loïc Lemlegre, Adeline Ranoux
  • Publication number: 20130190518
    Abstract: The present invention relates to a process for preparing a terpenoid derivative, the process comprising a metathesis of an olefin and a terpenoid, and to terpenoid derivatives prepared with said process.
    Type: Application
    Filed: July 11, 2011
    Publication date: July 25, 2013
    Applicant: Ecole Nationale Superieure de Chimie de Rennes
    Inventors: Marc Mauduit, Frédéric Caijo, Christophe Crévisy
  • Patent number: 8299250
    Abstract: The invention relates to a compound of the formula (I) or the formula (II) in which: W is an oxygen atom or a radical of the formula NH; X is hydrogen or an alkaline cation or a C1-C8 alkyl or a —(CH2)n3—C(R4)(R5)(R6) radical; X and R on the one hand and X and R1 on the other hand may independently form an optionally substituted cycle with 5, 6 or 7 links. The invention also relates to complexes of said compounds with at least one metal selected from the group comprising copper, palladium, ruthenium, iridium and rhodium, and to a method for the synthesis of these compounds. These compounds and complexes can be used in various asymmetrical catalysis methods.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: October 30, 2012
    Assignees: Ecole Nationale Supérieure de Chimie de Rennes, CNRS (Centre National de la Recherche Scientifique)
    Inventors: Marc Mauduit, Diane Rix, Christophe Crevisy, Joanna Wencel
  • Patent number: 7981856
    Abstract: The invention relates to surfactant compositions made from esters or amides of the betaine glycine, produced by reaction of the glycine betaine with a sulphonic acid and an alcohol or a fatty-chain amine derived from vegetable oils. The invention further relates to a cosmetic comprising said surfactant composition, in particular, liquid soap, bath foam, shower gel or shampoo.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: July 19, 2011
    Assignees: Eiffage Travaux Publics, Ecole Nationale Superieure de Chimie de Rennes
    Inventors: Jean-Pierre Antoine, Jerome Marcilloux, Martine Lefeuvre, Daniel Plusquellec, Thierry Benvegnu, Fabrice Goursaud, Bernard Parant
  • Patent number: 7829521
    Abstract: The invention relates to surfactant compositions made from esters or amides of the betaine glycine, produced by reaction of the glycine betaine with a sulphonic acid and an alcohol or a fatty-chain amine derived from vegetable oils. The invention further relates to a cosmetic comprising said surfactant composition, in particular, liquid soap, bath foam, shower gel or shampoo.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: November 9, 2010
    Assignees: Eiffage Travaux Publics, Ecole Nationale Superieure de Chimie de Rennes
    Inventors: Jean-Pierre Antoine, Jerome Marcilloux, Martine Lefeuvre, Daniel Plusquellec, Thierry Benvegnu, Fabrice Goursaud, Bernard Parant
  • Publication number: 20100273694
    Abstract: The invention relates to surfactant compositions made from esters or amides of the betaine glycine, produced by reaction of the glycine betaine with a sulphonic acid and an alcohol or a fatty-chain amine derived from vegetable oils. The invention further relates to a cosmetic comprising said surfactant composition, in particular, liquid soap, bath foam, shower gel or shampoo.
    Type: Application
    Filed: April 29, 2010
    Publication date: October 28, 2010
    Applicants: EIFFAGE TRAVAUX PUBLICS, ECOLE NATIONALE SUPERIEURE DE CHIMIE DE RENNES
    Inventors: Jean-Pierre Antoine, Jérôme Marcilloux, Martine Lefeuvre, Daniel Plusquellec, Thierry Benvegnu, Fabrice Goursaud, Bernard Parant
  • Publication number: 20100087644
    Abstract: The invention relates to all compounds of the formula (I) or (II) in which: L is a neutral ligand; X, X? are anionic ligands; R1 and R2 are, separately, a hydrogen, a C1-C6 alkyl, a C1-C6 perhalogenoalkyl, a aldehyde, a ketone, an ester, a nitrile, an aryl, a pyridinium alkyl, an optionally substituted C5 or C6 pyridinium alkyl, perhalogenoalkyl or cyclohexyl, a Cnh2NY radical 10 with n between 1 and 6 and y an i8onic marker, or a radical having the formula: wherein R1 can be a radical of formula (Ibis) when the compound has formula (I) or of formula (IIbis) when the compound has formula (II), R3 is a C1-C6 alkyl, or a C5 or C6 cycloalkyl or a C5 or C6 aryl; R0, R4, R5, R6, R7, R8, R9, R10, R11, are, separately, a hydrogen, C1-C6 alkyl, a C1-C6 perhalogenoalkyl, or a C5 or C6 aryl; wherein R9, R10, R11 can be a heterocycle; X1 is anion. R1 and R2 can form, with the N and the C to which they are attached, a heterocycle.
    Type: Application
    Filed: November 30, 2007
    Publication date: April 8, 2010
    Applicants: ECOLE NATIONALE SUPERIEURE DE CHIMIE DE RENNES, CNRS (CENTRE NATIONAL DE LA RECHERCHE SCIENTFIQUE)
    Inventors: Marc Mauduit, Isabelle Laurent, Hervé Clavier