Patents by Inventor Thu-Hoa Tran-Thi
Thu-Hoa Tran-Thi 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: 11904268Abstract: A method for preparing a nanoporous silica sol-gel matrix containing at least one amine reactant selected from hydroxylamine, methylhydroxylamine, tertbutylhydroxylamine, methoxyamine, tetraethylenepentamine, dicarboxylic acid dihydrazides, particularly adipic acid dihydrazide, and the salts thereof, said method including the following steps: a) synthesising a gel from tetramethoxysilane or from a mixture of tetramethoxysilane and another organosilicon precursor selected from among phenyltrimethoxysilane, phenyltriethoxysilane, a fluoroalkyltrimethoxysilane, a fluoroalkyltriethoxysilane, a chloroalkylmethoxysilane, a chloroalkylethoxysilane, an alkyltrimethoxysilane, an alkyltriethoxysilane, an aminopropyltriethoxysilane and the mixtures thereof, the synthesis being performed in an aqueous medium at a temperature ranging from 10 to 70° C.Type: GrantFiled: December 16, 2022Date of Patent: February 20, 2024Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS—Inventors: Thu-Hoa Tran-Thi, Ana Borta, Mickael Gineys, Marie-Pierre Som, Frédéric Hammel
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Patent number: 11897776Abstract: A method for preparing a monolithic nanoporous silicate sol-gel material for modulating the pore size distribution for one single starting composition without the addition of a structuring agent. The method includes the following steps: a) synthesising a gel from at least one organosilylated precursor, the synthesis being carried out in an aqueous medium, optionally including an organic solvent and without a structuring agent, and b) drying the gel obtained in step a) at a temperature between 10° C. and 70° C., preferably between 15° C. and 55° C. and more preferably between 20° C. and 40° C., in a gas flow in a drying chamber to obtain a monolithic nanoporous silicate sol-gel material and a residual relative humidity in the drying chamber of between 0.1 and 20%, preferably between 0.5 and 10% and more preferably about 5%.Type: GrantFiled: October 4, 2019Date of Patent: February 13, 2024Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS—Inventors: Clarisse Tran, Thu-Hoa Tran-Thi, Sabine Crunaire, Jean-Luc Wojkiewicz
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Publication number: 20230121377Abstract: A method for preparing a nanoporous silica sol-gel matrix containing at least one amine reactant selected from hydroxylamine, methylhydroxylamine, tertbutylhydroxylamine, methoxyamine, tetraethylenepentamine, dicarboxylic acid dihydrazides, particularly adipic acid dihydrazide, and the salts thereof, said method including the following steps: a) synthesising a gel from tetramethoxysilane or from a mixture of tetramethoxysilane and another organosilicon precursor selected from among phenyltrimethoxysilane, phenyltriethoxysilane, a fluoroalkyltrimethoxysilane, a fluoroalkyltriethoxysilane, a chloroalkylmethoxysilane, a chloroalkylethoxysilane, an alkyltrimethoxysilane, an alkyltriethoxysilane, an aminopropyltriethoxysilane and the mixtures thereof, the synthesis being performed in an aqueous medium at a temperature ranging from 10 to 70° C.Type: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS -Inventors: Thu-Hoa TRAN-THI, Ana BORTA, Mickael GINEYS, Marie-Pierre SOM, Frédéric HAMMEL
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Patent number: 11608589Abstract: A method for coating a textile material, said method includes the following steps: a) incorporating activated carbon in powder form into a coating composition including an aqueous solvent and at least one organosilicon precursor, wherein the organosilicon precursor represents from 5 to 50% by volume relative to the whole of the aqueous solvent and organosilicon precursor, b) impregnating the textile material with the coating composition by padding and c) drying the impregnated textile material, characterised in that the coating composition contains no polycarboxylic acid or catalyst.Type: GrantFiled: January 8, 2018Date of Patent: March 21, 2023Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS-, SAFRAN ELECTRONICS & DEFENSE, EUROPROTECT FRANCE SAInventors: Thu-Hoa Tran-Thi, Philippe Charton, Franck Tirard, Eva Grinenval, Sébastien Chatard
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Patent number: 11571650Abstract: A method for preparing a nanoporous silica sol-gel matrix containing at least one amine reactant selected from hydroxylamine, methylhydroxylamine, tertbutylhydroxylamine, methoxyamine, tetraethylenepentamine, dicarboxylic acid dihydrazides, particularly adipic acid dihydrazide, and the salts thereof, said method including the following steps: a) synthesising a gel from tetramethoxysilane or from a mixture of tetramethoxysilane and another organosilicon precursor selected from among phenyltrimethoxysilane, phenyltriethoxysilane, a fluoroalkyltrimethoxysilane, a fluoroalkyltriethoxysilane, a chloroalkylmethoxysilane, a chloroalkylethoxysilane, an alkyltrimethoxysilane, an alkyltriethoxysilane, an aminopropyltriethoxysilane and the mixtures thereof, the synthesis being performed in an aqueous medium at a temperature ranging from 10 to 70° C.Type: GrantFiled: July 27, 2018Date of Patent: February 7, 2023Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS—Inventors: Thu-Hoa Tran-Thi, Ana Borta, Mickael Gineys, Marie-Pierre Som, Frédéric Hammel
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Patent number: 11408121Abstract: The invention relates to a method for the coating of a textile material, said method comprising the following steps: d) providing a coating composition comprising an aqueous solvent and an organosilicon precursor; e) impregnating the textile material with the coating composition by means of pad finishing; f) drying the impregnated textile material; characterized in that the coating composition contains no polycarboxylic acid or catalyst.Type: GrantFiled: October 13, 2017Date of Patent: August 9, 2022Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS—, SAFRAN ELECTRONICS & DEFENSE, EUROPROTECT FRANCE SAInventors: Thu-Hoa Tran-Thi, Eva Grinenval, Philippe Charton, Franck Tirard, Sebastien Chatard
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Publication number: 20220242739Abstract: A method for preparing a monolithic nanoporous silicate sol-gel material for modulating the pore size distribution for one single starting composition without the addition of a structuring agent. The method includes the following steps: a) synthesising a gel from at least one organosilylated precursor, the synthesis being carried out in an aqueous medium, optionally including an organic solvent and without a structuring agent, and b) drying the gel obtained in step a) at a temperature between 10° C. and 70° C., preferably between 15° C. and 55° C. and more preferably between 20° C. and 40° C., in a gas flow in a drying chamber to obtain a monolithic nanoporous silicate sol-gel material and a residual relative humidity in the drying chamber of between 0.1 and 20%, preferably between 0.5 and 10% and more preferably about 5%.Type: ApplicationFiled: October 4, 2019Publication date: August 4, 2022Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS -, ECOLE NATIONALE SUPERIEURE MINES-TELECOM LILLE-DOUAIInventors: Clarisse TRAN, Thu-Hoa TRAN-THI, Sabine CRUNAIRE, Jean-Luc WOJKIEWICZ
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Patent number: 11318442Abstract: A method for producing a core-shell hybrid material made of an activated carbon core surrounded by a mesoporous silica sol-gel shell, the method including the formation of a mesoporous silica sol-gel shell around activated carbon particles. Also, the core-shell hybrid material formed by the method, and its use as a filtering material in filtering systems.Type: GrantFiled: January 8, 2018Date of Patent: May 3, 2022Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS—Inventors: Thu-Hoa Tran-Thi, Christophe Theron, William Bamogo, Trung-Hieu Nguyen
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Publication number: 20210267412Abstract: Air filtration, in particular in cooking appliances, such as for example deep fryers. In particular, an odorless lid suitable for any container that allows odors or volatile compounds to escape and more particularly for any food cooking appliance, the odorless lid comprises a filtering material of particles having a core-shell structure, wherein the activated carbon core is surrounded by a shell of a mesoporous sol-gel material based on functionalized or nonfunctionalized silica.Type: ApplicationFiled: July 12, 2019Publication date: September 2, 2021Applicants: ETHERA, COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES (CEA), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Marie-Pierre SOM, Thu-Hoa TRAN-THI, Christophe THERON, William BAMOGO, Trung-Hieu NGUYEN
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Publication number: 20200263349Abstract: The invention relates to a method for the coating of a textile material, said method comprising the following steps: d) providing a coating composition comprising an aqueous solvent and an organosilicon precursor; e) impregnating the textile material with the coating composition by means of pad finishing; f) drying the impregnated textile material; characterized in that the coating composition contains no polycarboxylic acid or catalyst.Type: ApplicationFiled: October 13, 2017Publication date: August 20, 2020Inventors: Thu-Hoa TRAN-THI, Eva GRINENVAL, Philippe CHARTON, Franck TIRARD, Sebastien CHATARD
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Publication number: 20200230542Abstract: A method for preparing a nanoporous silica sol-gel matrix containing at least one amine reactant selected from hydroxylamine, methylhydroxylamine, tertbutylhydroxylamine, methoxyamine, tetraethylenepentamine, dicarboxylic acid dihydrazides, particularly adipic acid dihydrazide, and the salts thereof, said method including the following steps: a) synthesising a gel from tetramethoxysilane or from a mixture of tetramethoxysilane and another organosilicon precursor selected from among phenyltrimethoxysilane, phenyltriethoxysilane, a fluoroalkyltrimethoxysilane, a fluoroalkyltriethoxysilane, a chloroalkylmethoxysilane, a chloroalkylethoxysilane, an alkyltrimethoxysilane, an alkyltriethoxysilane, an aminopropyltriethoxysilane and the mixtures thereof, the synthesis being performed in an aqueous medium at a temperature ranging from 10 to 70° C.Type: ApplicationFiled: July 27, 2018Publication date: July 23, 2020Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS -Inventors: Thu-Hoa TRAN-THI, Ana BORTA, Mickael GINEYS, Marie-Pierre SOM, Frédéric HAMMEL
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Publication number: 20190352841Abstract: A method for coating a textile material, said method includes the following steps: a) incorporating activated carbon in powder form into a coating composition including an aqueous solvent and at least one organosilicon precursor, wherein the organosilicon precursor represents from 5 to 50% by volume relative to the whole of the aqueous solvent and organosilicon precursor, b) impregnating the textile material with the coating composition by padding and c) drying the impregnated textile material, characterised in that the coating composition contains no polycarboxylic acid or catalyst.Type: ApplicationFiled: January 8, 2018Publication date: November 21, 2019Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS -, SAFRAN ELECTRONICS & DEFENSE, EUROPROTECT FRANCE SAInventors: Thu-Hoa TRAN-THI, Philippe CHARTON, Franck TIRARD, Eva GRINENVAL, Sébastien CHATARD
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Publication number: 20190351392Abstract: A method for producing a core-shell hybrid material made of an activated carbon core surrounded by a mesoporous silica sol-gel shell, the method including the formation of a mesoporous silica sol-gel shell around activated carbon particles. Also, the core-shell hybrid material formed by the method, and its use as a filtering material in filtering systems.Type: ApplicationFiled: January 8, 2018Publication date: November 21, 2019Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS -Inventors: Thu-Hoa TRAN-THI, Christophe THERON, William BAMOGO, Trung-Hieu NGUYEN
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Publication number: 20190299191Abstract: The invention relates to a nanoporous polyalkoxysilane sol-gel matrix and to a process for producing such a nanoporous polyalkoxysilane sol-gel matrix containing indigo carmine, wherein said process comprises the following steps: •a) synthesizing a gel from tetramethoxysilane or from a mixture of tetramethoxysilane and another organosilicon precursor chosen from phenyltrimethoxysilane, phenyltriethoxysilane, a fluoroalkyltrimethoxysilane, a fluoroalkyltriethoxysilane, a chloroalkylmethoxysilane, a chloroalkylethoxysilane, an aminopropyltriethoxysilane and mixtures thereof, the synthesis being carried out in an aqueous medium in the presence of a polar organic solvent and of the indigo carmine at a temperature ranging from 20 to 70° C., •b) drying the gel obtained in step a) so as to obtain a nanoporous polyalkoxysilane sol-gel matrix containing indigo carmine.Type: ApplicationFiled: July 7, 2017Publication date: October 3, 2019Applicants: Commissariat a l'Energie Atomique et aux Energies Alternatives, Centre National de la Recherche ScientifiqueInventors: Thu-Hoa Tran-Thi, Ludovic Caillat
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Patent number: 9977000Abstract: Monolithic nanoporous material, which is self-standing (i.e. self-supported or cohesive), solid and transparent, essentially devoid of cracks, transparent to UV radiation, obtained by the Sol-Gel process, the material having a basic nature and including a reagent capable of generating a stained product by forming a bond with phenol, a basic compound or mixture of basic compounds and a compound or mixture of oxidant compounds, method for preparation and use in the detection and in the selective depollution of phenol or one of its derivatives.Type: GrantFiled: January 13, 2016Date of Patent: May 22, 2018Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRSInventors: Thu-Hoa Tran-Thi, Laurent Mugherli, Ana Borta
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Patent number: 9841410Abstract: A liquid reagent composition for detecting phenol or phenol derivatives includes a reagent capable of generating a stained product by forming a bond with phenol, an oxidant compound or mixture of oxidant compounds, a basic compound or mixture of basic compounds. The ratio of [stained reagent]:[oxidant compound] is 1:2 to 50:1, having a pH greater than 7. Also disclosed is a kit for the use of the composition and liquid-phase method for analysing a fluid potentially containing phenol or a phenol derivatives.Type: GrantFiled: January 13, 2016Date of Patent: December 12, 2017Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRSInventors: Thu-Hoa Tran-Thi, Laurent Mugherli, Ana Borta
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Patent number: 9562882Abstract: Porous sol-gel material essentially consisting of units of one or more first polyalkoxysilanes chosen from the following compounds: (chloromethyl)triethoxysilane; 1,3-dimethyltetramethoxydisiloxane; ethyltrimethoxysilane; triethoxy(ethyl)silane; triethoxymethylsilane; triethoxy(vinyl)silane; trimethoxymethylsilane; trimethoxy(vinyl)silane; tetraethoxysilane or tetramethoxysilane (TMOS) and of units of one or more second polyalkoxysilanes chosen from the following compounds: (N-(3-(trimethoxysilyl)propyl)ethylenediamine; 3-aminopropyltriethoxysilane (APTES) and 3-aminopropyltrimethoxysilane, in a first polyalkoxysilane/second polyalkoxysilane molar ratio of 1/0.01 to 1/1, optionally comprising a probe molecule, method of preparation and applications in the trapping of monocyclic aromatic hydrocarbons and other pollutants or in their detection.Type: GrantFiled: May 6, 2014Date of Patent: February 7, 2017Assignees: CEA—COMMISSARIAT ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CNRS—CENTRE NATIONAL DE LA TECHERCHE SCIENTIFIQUEInventors: Sabine Crunaire, Thu-Hoa Tran-Thi
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Patent number: 9556469Abstract: Porous sol-gel material essentially consisting of units of one or more first polyalkoxysilanes chosen from the following compounds: (chloromethyl)triethoxysilane; 1,3-dimethyltetramethoxydisiloxane; ethyltrimethoxysilane; triethoxy(ethyl)silane; triethoxymethylsilane; triethoxy(vinyl)silane; trimethoxymethylsilane; trimethoxy(vinyl)silane; tetraethoxysilane or tetramethoxysilane (TMOS) and of units of one or more second polyalkoxysilanes chosen from the following compounds: (N-(3-(trimethoxysilyl)propyl)ethylenediamine; 3-aminopropyltriethoxysilane (APTES) and 3-aminopropyltrimethoxysilane, in a first polyalkoxysilane/second polyalkoxysilane molar ratio of 1/0.01 to 1/1, optionally comprising a probe molecule, method of preparation and applications in the trapping of monocyclic aromatic hydrocarbons and other pollutants or in their detection.Type: GrantFiled: June 27, 2012Date of Patent: January 31, 2017Assignees: Commissariat a l'Energie Atomique et aux Energies Alternatives, Centre National de la Recherche ScientifiqueInventors: Pierre Marcoux, Mathieu Dupoy, Laure-Hélène Guillemot, Thu-Hoa Tran-Thi
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Patent number: 9435746Abstract: The invention relates to a multifunctional detector for gaseous compounds, or mixtures of gaseous compounds, selected from NH2Cl, NHCl2, NCl3, total chlorine, NOx, where x=1 or 2, O3, and X2, where X=Cl, Br, or I, in a sample, said detector including a first sensor including an iodide and a reactive compound selected from starch, amylose, amylopectin, xyloglucan, xylan, chitosan, glycogen, polyvinyl alcohol, cellulose or a cellulose compound, ?-cyclodextrin, theobromine, and polypropylene block polymers and polyethylene oxide block polymers, included in a block of sol-gel material that is absorbent in the UV spectrum but not in the visible spectrum. The invention also relates to the uses of said detector.Type: GrantFiled: December 14, 2011Date of Patent: September 6, 2016Assignees: Commissariat A L'Energie Atomique Et Aux Energies Alternatives, Centre National de la Recherche Scientifique—CRNSInventors: Thu-Hoa Tran-Thi, Julien Garcia, Thi Dinh Nguyen, Trung-Hieu Nguyen
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Publication number: 20160202221Abstract: Monolithic nanoporous material, which is self-standing (i.e. self-supported or cohesive), solid and transparent, essentially devoid of cracks, transparent to UV radiation, obtained by the Sol-Gel process, the material having a basic nature and including a reagent capable of generating a stained product by forming a bond with phenol, a basic compound or mixture of basic compounds and a compound or mixture of oxidant compounds, method for preparation and use in the detection and in the selective depollution of phenol or one of its derivatives.Type: ApplicationFiled: January 13, 2016Publication date: July 14, 2016Inventors: THU-HOA TRAN-THI, LAURENT MUGHERLI, ANA BORTABYON