Patents by Inventor Valérie Buissette

Valérie Buissette 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).

  • Publication number: 20240158251
    Abstract: The invention relates to cerium oxide particles having a roughness index RI of at least 5, to a making process thereof and to the use thereof in chemical mechanical polishing applications.
    Type: Application
    Filed: March 10, 2022
    Publication date: May 16, 2024
    Applicant: RHODIA OPERATIONS
    Inventors: Marie Plissonneau, Réka Toth, Lauriane D'Alencon, Valérie Buissette, Mickaël Boudot
  • Publication number: 20240158250
    Abstract: The invention relates to cerium oxide particles having a roughness index (RI) of at least 5, to a making process thereof and to the use thereof in chemical mechanical polishing applications.
    Type: Application
    Filed: March 10, 2022
    Publication date: May 16, 2024
    Applicant: RHODIA OPERATIONS
    Inventors: Marie Plissonneau, Réka Toth, Lauriane D'Alencon, Valérie Buissette, Mickaël Boudot
  • Publication number: 20230187687
    Abstract: The invention relates to a fluorination process consisting in bringing an inorganic compound M into contact with an atmosphere comprising difluorine gas, the inorganic compound M being a garnet based on the elements Li, La, Zr, A and O and for which the relative composition of the Li, La, Zr and A cations corresponds to the formula (I): LixLa3ZrzAw.
    Type: Application
    Filed: April 29, 2021
    Publication date: June 15, 2023
    Applicants: Solvay SA, Centre National de la Recherche Scientifique, Clermont Auvergne INP, Universite Clermont Auvergne
    Inventors: Laure Bertry, Réka Toth, Thierry Le Mercier, Valérie Buissette, Katia Guerin, Marc Dubois, Michaël Herraiz
  • Patent number: 11658288
    Abstract: The invention relates to an NVPF-based composition and the use thereof in the field of batteries as an electrochemically active material. The invention also relates to a conductive composition comprising said composition as well as to a method for obtaining said composition.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: May 23, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Laure Bertry, Robin Amisse, Valérie Buissette, Marc-David Braida, Stéphanie Lesturgez, Thierry Le Mercier
  • Patent number: 11655151
    Abstract: The present invention relates to a process for preparing an ammonium vanadium phosphate of formula (NH4)(VO2)(HPO4). It also relates to a process for preparing a vanadium orthophosphate VPO4.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: May 23, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Cyril Chomette, Valérie Buissette, Marc-David Braida, Thierry Le Mercier
  • Publication number: 20230041600
    Abstract: The disclosure relates to cerium based particles having a rough surface and their use as a component of a polishing composition, especially for chemical mechanical polishing. The cerium based particles have substantially the shape of polyhedrons which have one or more faces with protrusions thereon, said protrusions being integrally formed with said cerium based particles. The present disclosure also relates to the method of preparation of the cerium based particles.
    Type: Application
    Filed: November 25, 2020
    Publication date: February 9, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Marie Plissonneau, Réka Toth, Thierry Le Mercier, Valérie Buissette, Manabu Yuasa, Eisaku Suda
  • Publication number: 20230002639
    Abstract: The invention relates to cerium based core-shell particles having a core of cerium oxide optionally doped with at least one metal (M) and a shell consisting of a plurality of nanoparticles of cerium oxide optionally doped with at least one metal (M?), which can be the same or different from metal (M), formed on the surface of the core particle. The invention also relates to dispersions thereof in a liquid medium, to a process for producing the same and to the use of these particles and dispersions in polishing applications such as chemical mechanical polishing.
    Type: Application
    Filed: November 25, 2020
    Publication date: January 5, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Marie Plissonneau, Réka Toth, Thierry Le Mercier, Valérie Buissette, Lauriane D'Alencon
  • Publication number: 20220278355
    Abstract: The present invention relates to a method of preparation of a garnet-type inorganic material. It also relates to the garnet-type inorganic material itself. The process comprises the following steps: (1) bringing an aqueous solution S comprising (i) a salt of zirconium, (ii) a salt of lanthanum and (iii) a salt of the element A or a precursor of an oxide of element A into contact with an aqueous solution of a basic compound, as a result of which a precipitate suspended in the reaction medium is obtained; (2) stirring the reaction medium obtained at the end of step (1) for at least 30 min; (3) bringing the precipitate obtained at the end of step (2) into contact with an additive selected in the group consisting of: anionic surfactants; nonionic surfactants; polyethylene glycols; carboxylic acids and their salts; and surfactants of the carboxymethylated fatty alcohol ethoxylate type; (4) calcining in air the precipitate recovered at the end of the previous step at a temperature which is at least 400° C.
    Type: Application
    Filed: July 29, 2020
    Publication date: September 1, 2022
    Inventors: Réka TOTH, Laure BERTRY, Valérie BUISSETTE, Thierry LE MERCIER, Marc-David BRAIDA, Robin AMISSE
  • Publication number: 20220098476
    Abstract: A modified phosphor is described comprising phosphor particles and at least one amphiphilic agent. Compositions comprising the modified phosphor and at least one polymer are also described.
    Type: Application
    Filed: October 5, 2021
    Publication date: March 31, 2022
    Applicant: RHODIA OPERATIONS
    Inventors: Valérie Buissette, Franck Aurissergues, Thierry Le Mercier
  • Patent number: 11286422
    Abstract: The silicate of magnesium and of barium, strontium or calcium of the invention is characterized in that it is in the form of a suspension of solid crystallized particles in a liquid phase, said particles having a mean size between 0.1 ?m and 1 ?m. It is prepared by spray-drying a liquid mixture comprising compounds of magnesium, of silicium and of at least one first element chosen from barium, strontium and calcium, by submitting the dried mixture to a first calcination in air and to a second calcination in a reducing atmosphere and by wet milling the calcined mixture.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: March 29, 2022
    Assignee: RHODIA OPERATIONS
    Inventors: Valérie Buissette, Franck Aurissergues, Thierry Le-Mercier
  • Publication number: 20210305549
    Abstract: The invention relates to an NVPF-based composition and the use thereof in the field of batteries as an electrochemically active material. The invention also relates to a conductive composition comprising said composition as well as to a method for obtaining said composition.
    Type: Application
    Filed: July 30, 2019
    Publication date: September 30, 2021
    Inventors: Laure BERTRY, Robin AMISSE, Valérie BUISSETTE, Marc-David BRAIDA, Stéphanie LESTURGEZ, Thierry LE MERCIER
  • Publication number: 20210147236
    Abstract: The present invention relates to a process for preparing an ammonium vanadium phosphate of formula (NH4)(VO2)(HPO4). It also relates to a process for preparing a vanadium orthophosphate VPO4.
    Type: Application
    Filed: June 14, 2018
    Publication date: May 20, 2021
    Inventors: Cyril CHOMETTE, Valérie BUISSETTE, Marc-David BRAIDA, Thierry LE MERCIER
  • Publication number: 20210070630
    Abstract: The present invention relates to the new process of preparation of a Li-rich layered oxide based on Mn and optionally on Ni and/or Co in which F is incorporated within the crystal of the oxide (or “fluorinated oxide”). It also relates to the new fluorinated oxide its use as a component in a cathode of a battery.
    Type: Application
    Filed: April 25, 2019
    Publication date: March 11, 2021
    Inventors: Jean-Marie TARASCON, Jiwei MA, Laure BERTRY, Robin AMISSE, Marc-David BRAIDA, Thierry LE MERCIER, Valérie BUISSETTE
  • Patent number: 10450200
    Abstract: The compound according to the invention is a compound of formula (1) Ax W1-yMOyO3, wherein A is chosen from the group comprising the Li, Na, NH4, K and H cations, and it is characterized in that x and y verify the relationships 0?x?1 and 0?y?0.5, and in that it has a crystalline structure of the hexagonal type with a base of WO6 octahedra, said structure having tunnels delimited by 6, 4 and 3 of said octahedra and oriented along the axis c.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: October 22, 2019
    Assignees: RHODIA OPERATIONS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SORBONNE UNIVERSITE
    Inventors: Valerie Buissette, Thierry Le Mercier, Julie Besnardiere, Sophie Cassaignon, David Portehault, Gilles Wallez
  • Publication number: 20190134608
    Abstract: Disclosed is a composition comprising at least a cerium and zirconium based mixed oxide comprising zirconium, cerium, lanthanum and optionally at least one rare earth other than cerium and lanthanum; said mixed oxide exhibiting a high thermal resistance and are in particular capable of maintaining a large specific surface area even in a high temperature environment. Also disclosed is a process for the synthesis of such compositions.
    Type: Application
    Filed: April 26, 2016
    Publication date: May 9, 2019
    Inventors: Simon IFRAH, Wie LI, Valérie BUISSETTE, Stéphane DENAIRE, Rui Miguel JORGE COELHO MARQUES
  • Publication number: 20180282548
    Abstract: Cerium oxide particles having a modified surface, their manufacture and their uses in polymeric compositions and articles.
    Type: Application
    Filed: September 22, 2016
    Publication date: October 4, 2018
    Inventors: Valérie BUISSETTE, Lauriane D'ALENCON, Thierry LE MERCIER, Paolo TONIOLO, Serena CARELLA, Luciano MIOZZO
  • Publication number: 20180280262
    Abstract: The invention relates to a cosmetic photoprotection composition comprising particles of cerium oxide functionalised with polyacrylic acid, in combination with particles of titanium oxide or zinc oxide.
    Type: Application
    Filed: September 23, 2016
    Publication date: October 4, 2018
    Inventors: Camille JOURDE, Valérie BUISSETTE
  • Patent number: 9982191
    Abstract: Phosphate particulates of at least one rare-earth metal (Ln), with Ln being at least one rare-earth metal selected from among cerium and terbium and optionally lanthanum are in the form of a suspension in a liquid phase of primary isotropic monocrystalline monazite particles having an average size of at least 25 nm and agglomerated into secondary particles having an average size of at most 400 nm; useful luminophores are produced from such phosphate particulates.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: May 29, 2018
    Assignee: Rhodia Operations
    Inventors: Valérie Buissette, Thierry Le-Mercier, Laurent Thiers
  • Patent number: 9796924
    Abstract: The phosphor of the invention is based on a lanthunum cerium terbium phosphate, and it is characterized in that the phosphate consists of particles having a mean size of at most 4 ?m, in that it has a lithium content of at most 30 ppm, a boton content of at most 30 ppm and in that it has a variation of brightness between the brightness measured on the phosphor at 25° C. and that measured on the same phosphor at 200° C. of at most 4%.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: October 24, 2017
    Assignee: Rhodia Operations
    Inventors: Valérie Buissette, Thierry Le-Mercier
  • Publication number: 20170226415
    Abstract: A modified phosphor is described comprising phosphor particles and at least one amphiphilic agent. Compositions comprising the modified phosphor and at least one polymer are also described.
    Type: Application
    Filed: August 3, 2015
    Publication date: August 10, 2017
    Inventors: Valérie BUISSETTE, Franck AURISSERGUES, Thierry LE-MERCIER