Patents by Inventor Cyril Aymonier
Cyril Aymonier 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).
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Patent number: 10507597Abstract: Method and device for delamination/dismantling of multi-layer systems SM comprising several layers including at least one organic layer, wherein the layers are separated by interfaces, characterized in that it comprises at least the following steps: Mixing the multilayer system with a fluid composed of at least one gas having the particularity of causing the swelling of at least one of the layers and one or more non-reactive liquids having the particularity of allowing the separation of each layer unitarily or of subsets of layers composing the multilayer system without degradation of the constituents of the layers, the gas/liquid fluid being raised in temperature and pressure, Recovering separately at least one or more layers or a subset of undegraded layers.Type: GrantFiled: September 2, 2016Date of Patent: December 17, 2019Assignee: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Cyril Aymonier, Cédric Slostowski
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Publication number: 20190226052Abstract: Disclosed is a method and a device for retrieving, from an object A, elements G present in a matrix M, the method including at least the following steps: bringing said abject A into contact with a dense fluid Fd with a molar mass greater than 2 g mol?1 under temperature T1 and pressure P1 conditions suitable for transforming the intergranular phase and for releasing the elements G,, modifying the temperature T2 and/or pressure P2 values to stop the reaction transforming the intergranular phase,, and recovering the elements G separated front the matrix M.Type: ApplicationFiled: July 17, 2017Publication date: July 25, 2019Applicants: Centre National de la Recherche Scientifique, Université de Rouen-Normandie, Institut National des Sciences Appliquees de Rouen NormandieInventors: Jean-Marie LE BRETON, Nicolas MAAT, Cyril AYMONIER
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Patent number: 10221072Abstract: A process for preparing phyllomineral synthetic particles formed from constituent chemical elements in stoichiometric proportions including at least one chemical element selected from the group formed from silicon and germanium, and at least one chemical element selected from the group formed from divalent metals and trivalent metals, by a continuous solvothermal treatment at a pressure above 1 MPa and at a temperature between 100° C. and 600° C., by making the reaction medium circulate continuously in a solvothermal treatment zone of a continuous reactor (15) with a residence time of the reaction medium in the solvothermal treatment zone that is suitable for continuously obtaining, at the outlet of the solvothermal treatment zone, a suspension including the phyllomineral synthetic particles.Type: GrantFiled: April 13, 2015Date of Patent: March 5, 2019Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S), UNIVERSITE PAUL SABATIER TOULOUSE IIIInventors: Cyril Aymonier, Cedric Slostowski, Angela Dumas, Pierre Micoud, Christophe Le Roux, Francois Martin
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Publication number: 20190055133Abstract: The invention relates to a mineral compound, referred to as synthetic mica, with formula At(SixGe1-x)4MzO10(OH)2, wherein: A designates at least one monovalent interfoliar cation of a metal element, A having the formula Liw(1)Naw(2)Kw(3)Rbw(4)Csw(5), each instance of w(i) representing a real number in the interval [0; 1], such that the sum of the instances of w(i) is equal to 1; t is a real number in the interval [0.3; 1]; x is a real number in the interval [0; 1]; M designates at least one divalent metal having the formula Mgy(1)Coy(2)Zny(3)Cuy(4)Mny(5)Fey(6)Niy(7)Cr, each instance of y(i) representing a real number in the interval [0; 1], such as the formula (A); and z is a real number in the interval [2.50; 2.85]. The invention also relates to a composition comprising such a compound and a method for preparing such a compound.Type: ApplicationFiled: September 27, 2016Publication date: February 21, 2019Inventors: François MARTIN, Christophe LE ROUX, Pierre MICOUD, Marie CLAVIER, Cyril AYMONIER
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Patent number: 10167374Abstract: The invention relates to a method for recovering organic fibers from a composite material comprising a polymer matrix and organic fibers, wherein the method comprises the following steps: providing a solution comprising a mixture of water and alcohol; placing the composite material inside a reactor; contacting the mixture and the composite material in order to perform a solvolysis reaction of the composite material; and recovering the organic fibers; wherein the pressure and the temperature in the reactor are adjusted such as to fall within the homogeneous sub-critical range of the phase diagram, within the super-critical range or near the critical point; and wherein the temperature is lower than the melting temperature of the organic fibers.Type: GrantFiled: June 19, 2014Date of Patent: January 1, 2019Assignees: UNIVERSITY DE BORDEAUX, AIRBUS OPERATIONS (S.A.S), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)Inventors: Cyril Aymonier, Anne Loppinet Serani, Antoine Debeauvais
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Publication number: 20180305214Abstract: Some embodiments are directed to a method and device for reducing a component composed of at least one graphene oxide and a matrix consisting of at least one polymer, characterized in that the method includes at least the following steps: introducing a mixture of polymer(s) and graphene oxide GO into a reactor subject to a value of temperature T and a value of pressure P suitable for placing a fluid under supercritical or subcritical conditions for a given period, the temperature T being suitable for not degrading the polymer; and cooling the reactor and removing the obtained product R consisting of reduced polymer(s) and graphene oxide rGO.Type: ApplicationFiled: July 26, 2016Publication date: October 25, 2018Inventors: Philippe POULIN, Suchithra PADMAJAN SASIKALA, Cyril AYMONIER
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Publication number: 20180273389Abstract: The invention relates to a method for preparing synthetic mineral particles with formula (AlyM1-y)2(SixGe1-x)2O5(OH)4, wherein M designates at least one trivalent metal selected from the group made up of gallium and the rare earths, which comprises the following steps: preparing a gel which is a precursor of said synthetic mineral particles by a co-precipitation reaction of at least one salt of metal selected among aluminium and M with at least one silicon source selected from the group made up of potassium metasilicate, sodium metasilicate, potassium metagermanate and sodium metagermanate, the molar ratio of (AlyM1-y) to (SixGe1-x) during the preparation of said precursor gel being equal to 1, at least one base being added during said co-precipitation reaction; and performing a solvothermal treatment of said precursor gel at a temperature of 250° C. to 600° C.Type: ApplicationFiled: September 27, 2016Publication date: September 27, 2018Inventors: François MARTIN, Christophe LE ROUX, Pierre MICOUD, Marie CLAVERIE, Cyril AYMONIER
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Publication number: 20180257267Abstract: Method and device for delamination/dismantling of multi-layer systems SM comprising several layers including at least one organic layer, wherein the layers are separated by interfaces, characterized in that it comprises at least the following steps: Mixing the multilayer system with a fluid composed of at least one gas having the particularity of causing the swelling of at least one of the layers and one or more non-reactive liquids having the particularity of allowing the separation of each layer unitarily or of subsets of layers composing the multilayer system without degradation of the constituents of the layers, the gas/liquid fluid being raised in temperature and pressure, Recovering separately at least one or more layers or a subset of undegraded layers.Type: ApplicationFiled: September 2, 2016Publication date: September 13, 2018Inventors: Cyril AYMONIER, Cédric SLOSTOWSKI
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Publication number: 20170349757Abstract: The invention concerns a continuous flow process for manufacturing surface modified metal oxide nanoparticles by supercritical solvothermal synthesis in an reaction medium flowing within a continuous flow chamber, said continuous flow chamber containing a hydrolysis area and a supercritical area, said process comprising the introduction of a flow of metal oxide precursor into the continuous flow chamber at a point P located in the hydrolysis area or in the supercritical area, and the introduction of a flow of is located downstream of P1 with respect to the flow direction, as well as the device for carrying out this process.Type: ApplicationFiled: December 23, 2014Publication date: December 7, 2017Inventors: Manuel THEODET, Cyril AYMONIER
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Publication number: 20170066655Abstract: A process for preparing phyllomineral synthetic particles formed from constituent chemical elements in stoichiometric proportions including at least one chemical element selected from the group formed from silicon and germanium, and at least one chemical element selected from the group formed from divalent metals and trivalent metals, by a continuous solvothermal treatment at a pressure above 1 MPa and at a temperature between 100° C. and 600° C., by making the reaction medium circulate continuously in a solvothermal treatment zone of a continuous reactor (15) with a residence time of the reaction medium in the solvothermal treatment zone that is suitable for continuously obtaining, at the outlet of the solvothermal treatment zone, a suspension including the phyllomineral synthetic particles.Type: ApplicationFiled: April 13, 2015Publication date: March 9, 2017Inventors: Cyril AYMONIER, Cedric SLOSTOWSKI, Angela DUMAS, Pierre MICOUD, Christophe LE ROUX, Francois MARTIN
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Patent number: 9476817Abstract: The invention concerns a method whereby: (E1) an inner liquid phase is made to flow in an inner flow member, and an outer liquid phase in an outer flow member, the flow of the inner liquid phase opening within the flow of the second liquid phase; and the temperature and pressure in the contact area between the first and second liquid phases being such that the first and/or second liquid phase is in the supercritical state, (E2) the flow rate of the inner phase and/or outer phase is varied in such a way as to modify the flow profile, and a torque is identified from values of the flow rates of the inner and outer phases, called transition flow rates, from which the modification in the flow profile occurs (from drops to a jet; or from a jet to drops); (E3) from the transition torque identified in step (E2), the value of the interfacial tension between the two inner and outer liquid phases is calculated, or the result obtained is compared to that obtained for another torque in the conditions of steps (E1) and (E2Type: GrantFiled: September 21, 2012Date of Patent: October 25, 2016Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, RHODIA OPERATIONSInventors: Pierre Guillot, Max Chabert, Annie Colin, Emmanuel Mignard, Samuel Marre, Cyril Aymonier
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Publication number: 20160145409Abstract: The invention relates to a method for recovering organic fibers from a composite material comprising a polymer matrix and organic fibers, wherein the method comprises the following steps: providing a solution comprising a mixture of water and alcohol; placing the composite material inside a reactor; contacting the mixture and the composite material in order to perform a solvolysis reaction of the composite material; and recovering the organic fibers; wherein the pressure and the temperature in the reactor are adjusted such as to fall within the homogeneous sub-critical range of the phase diagram, within the super-critical range or near the critical point; and wherein the temperature is lower than the melting temperature of the organic fibers.Type: ApplicationFiled: June 19, 2014Publication date: May 26, 2016Applicants: Centre National de la Recherche Scientifique (CNRS), Universite de Bordeaux 1, Airbus Industrie GIEInventors: Cyril Aymonier, Anne Loppinet Serani, Antoine Debeauvais
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Publication number: 20140238117Abstract: The invention concerns a method whereby: (E1) an inner liquid phase is made to flow in an inner flow member, and an outer liquid phase in an outer flow member, the flow of the inner liquid phase opening within the flow of the second liquid phase; and the temperature and pressure in the contact area between the first and second liquid phases being such that the first and/or second liquid phase is in the supercritical state, (E2) the flow rate of the inner phase and/or outer phase is varied in such a way as to modify the flow profile, and a torque is identified from values of the flow rates of the inner and outer phases, called transition flow rates, from which the modification in the flow profile occurs (from drops to a jet; or from a jet to drops); (E3 ) from the transition torque identified in step (E2), the value of the interfacial tension between the two inner and outer liquid phases is calculated, or the result obtained is compared to that obtained for another torque in the conditions of steps (E1) and (EType: ApplicationFiled: September 21, 2012Publication date: August 28, 2014Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, RHODIA OPERATIONSInventors: Pierre Guillot, Max Chabert, Annie Colin, Emmanuel Mignard, Samuel Marre, Cyril Aymonier
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Patent number: 7932311Abstract: The invention relates to a method of preparing a particle-based composition, comprising: (i) bringing into contact a mixture comprising a dendritic structure and a metal compound precursor in a fluid, under temperature and pressure conditions such that the mixture is not soluble in the fluid; and (ii) chemically converting the metal compound precursor.Type: GrantFiled: December 8, 2006Date of Patent: April 26, 2011Assignee: Centre National de la Recherche Scientifique (C.N.R.S.)Inventors: Cyril Aymonier, François Cansell, Stefan Mecking, Sandy Moisan, Victor Martinez
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Publication number: 20100307648Abstract: Subjects of the present invention are: a method of desensitizing crystals of an energetic explosive substance by coating them, said method comprising the deposition, carried out within a fluid, outside the normal temperature and pressure conditions, preferably under supercritical conditions, of a metal and/or polymer film, advantageously of a metal film or of a polymer film, on the surface of said crystals, the metal(s) and/or polymer(s) in question having been firstly dissolved in a solvent; the coated crystals of an energetic explosive substance obtainable by said method; and the energetic materials containing said crystals coated by said method and/or said crystals desensitized by said method.Type: ApplicationFiled: December 18, 2008Publication date: December 9, 2010Applicant: SNPE MATERIAUX ENERGETIQUESInventors: Christine Marraud, Samuel Marre, Francois Cansell, Cyril Aymonier
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Publication number: 20090093597Abstract: The invention relates to a method of preparing a particle-based composition, comprising: (i) bringing into contact a mixture comprising a dendritic structure and a metal compound precursor in a fluid, under temperature and pressure conditions such that the mixture is not soluble in the fluid; and (ii) chemically converting the metal compound precursor.Type: ApplicationFiled: December 8, 2006Publication date: April 9, 2009Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)Inventors: Cyril Aymonier, Francois Cansell, Stefan Mecking, Sandy Moisan, Victor Martinez
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Publication number: 20070082803Abstract: The invention relates to a method for obtaining a composite ferro-electric material, consisting of the following stages: particles of a ferro-electric compound are covered with a dielectric layer; a dense composite material is formed by sintering the covered particles. The invention is characterized in that in the covering stage the particles of the ferro-electric compound are brought into contact with a fluid containing at least one solvent and a precursor of the dielectric compound, said fluid being pressurized.Type: ApplicationFiled: October 12, 2004Publication date: April 12, 2007Inventors: Francois Pierre Cansell, Cyril Aymonier, Christopher Huber, Catherine Elissalde, Mario Maglione
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Patent number: 6656436Abstract: The present invention relates to a system for the conversion of chemical structures where the system contains a reservoir reactor having a first lower zone where high solubility of at least one salt in a solvent is maintained under first conditions of pressure and temperature, a second upper zone for precipitating at least one salt under second conditions of pressure and temperature, means for maintaining the first and second conditions of temperature and pressure, means for generating ultrasound, and means for forming a solvent in the lower part of the reservoir reactor.Type: GrantFiled: January 9, 2001Date of Patent: December 2, 2003Assignees: L'ElectrolyseInventors: Dominique Sentagnes, Cyril Aymonier, Bernard Berdeu, François Cansell
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Patent number: 6551517Abstract: The present invention relates to a process for converting chemical structures, that is to say a process for the conducting of chemical reactions in a fluid under pressure and at temperature in a supercritical fluid in particular, containing a solvent and at least one electrolyte such as a salt, in which reactive species are generated in situ by electrolysis. According to the invention, the fluid flows upwards in a reservoir reactor crossing through a first lower electrolysis zone with high salt solubility and a second upper zone in which the salts precipitate, then the fluid free of salt is evacuated at the upper part of said reservoir reactor and directed into a second tubular reactor to reach the desired stage of advancement of the conversion.Type: GrantFiled: January 9, 2001Date of Patent: April 22, 2003Assignees: L'ElectrolyseInventors: Dominique Sentagnes, Cyril Aymonier, Bernard Berdeu, François Cansell