Patents Assigned to Rhodia Operations
  • Patent number: 12006470
    Abstract: The present invention relates to compositions for enhanced oil recovery, comprising: (A) internal ketones sulfonated alpha to the ketone group; and (B) unsulfonated internal ketones, with a molar ratio B/(A+B) greater than or equal to the limiting molar concentration of unsulfonated ketones from which a stabilization is observed in the reduction in mobility when the mixture of said ketones is injected into a porous medium.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: June 11, 2024
    Assignees: RHODIA OPERATIONS, IFP Energies Nouvelles
    Inventors: Mikel Morvan, Pascal Pitiot, Loïc Baussaron, Roberto Company
  • Publication number: 20240182312
    Abstract: A precipitated silica characterised by low silanol ratio. The precipitated silica is in particularly suitable for use as filler in elastomeric mixtures.
    Type: Application
    Filed: April 1, 2022
    Publication date: June 6, 2024
    Applicant: RHODIA OPERATIONS
    Inventors: Cédric Feral-Martin, Pascaline Lauriol-Garbey, Caroline Fayolle, Frédéric Colbeau-Justin
  • 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: 20240158244
    Abstract: The invention relates to a process for producing a silicate from a plant ash comprising crystalline silica. The process comprises reacting said plant ash with a base in the presence of an additive which is a salt comprising a multivalent anion. The invention also relates to a silicate obtainable from said process and to a process for preparing a precipitated silica from said silicate. The invention also concerns a reaction mixture which can be used for said processes.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 16, 2024
    Applicant: RHODIA OPERATIONS
    Inventors: François Payan, Youssef Chkounda
  • Publication number: 20240140810
    Abstract: The invention relates to a process for producing a silicate from a plant ash comprising crystalline silica, wherein at least a portion of said crystalline silica is cristobalite. The process comprises reacting said plant ash with a base in the presence of an additive which is a salt comprising a sulfur oxyanion. The invention also relates to a silicate obtainable from said process and to a process for preparing a precipitated silica from said silicate. The invention also concerns a reaction mixture which can be used for said processes.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 2, 2024
    Applicant: RHODIA OPERATIONS
    Inventors: François Payan, Youssef Chkounda
  • Patent number: 11964255
    Abstract: Disclosed are a mixed oxide composition based on zirconium and cerium exhibiting a high reducibility, the process for preparing it and its use in the field of catalysis.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: April 23, 2024
    Assignee: RHODIA OPERATIONS
    Inventors: Simon Ifrah, Laure Jeanne Simone Bisson, Benjamin Faure, Rui Miguel Jorge Coelho Marques, Wei Li, Ling Zhu
  • Patent number: 11958989
    Abstract: Described herein is a method for treatment of at least one surface of a substrate at least partially made of aluminum and/or an aluminum alloy, including at least a step of contacting said surface with an acidic aqueous composition (A) including one or more metal compounds (M) selected from the group of titanium compounds, zirconium compounds, and hafnium compounds and one or more linear polymers (P) containing (m1) N,N-dimethyl (meth)acryl amide, (m2) vinylphosphonic acid, and (m3) (meth)acrylic acid in form of their polymerized monomeric units, the one or more linear polymers (P) being included in the acidic aqueous composition (A) in an amount of 50 to 5000 ppm. Also described herein is an acidic aqueous composition (A), a master batch to produce the acidic aqueous composition (A), a method of using the acidic aqueous composition (A) for treating surfaces, and substrates comprising the treated surfaces.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: April 16, 2024
    Assignees: Rhodia Operations, Chemetall GmbH
    Inventors: Lars Sebralla, Nawel Souad Khelfallah, Axel Schoene, Marie-Pierre Labeau, Guillaume Gody
  • Patent number: 11958980
    Abstract: A chemically modified precipitated silica characterised by the presence of alkyl moieties chemically bound to the silica and a process for its manufacture.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: April 16, 2024
    Assignee: RHODIA OPERATIONS
    Inventors: Emmanuelle Allain Najman, Pascaline Garbey, Cédric Feral-Martin, Laure Bertry, Laurent Guy, Thomas Chaussee, Stéphanie Croyeau
  • Publication number: 20240110102
    Abstract: Disclosed are ethylenically unsaturated salts of allyl (poly)ether sulfates utilized as reactive surfactants or emulsifiers during emulsion polymerization.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 4, 2024
    Applicant: RHODIA OPERATIONS
    Inventors: Lichang Zhou, Adnan Siddiqui, Dongcheel Lee, Derek Pakenham, Eugene J. Anderson, Shailesh Majmudar, Eunyong Kim, Homayoun Jamasbi, An Tran, Peng Zhang
  • Publication number: 20240101721
    Abstract: Described herein are hydrophobically-modified polysaccharides, their manufacture, and their use in microencapsulation, typically of water-insoluble active materials.
    Type: Application
    Filed: October 8, 2020
    Publication date: March 28, 2024
    Applicants: RHODIA OPERATIONS, SOLVAY USA INC.
    Inventors: Ahmed Alsayed, Manasi Chawathe, Celine Anna Simone Burel, Denis Bendejacq
  • Publication number: 20240105986
    Abstract: The invention relates to a Composition comprising or consisting essentially of a product according to formula (I): LiaPSbXc (I) wherein—X represents at least one halogen element; —a represents a number from 2.0 to 7.0; —b represents a number from 3.5 to 6.0; and—c represents a number from 0 to 3.0; in the form of particles or articles the size of which being such that less than 10 wt % of the composition pass through a sieve of 200 ?m.
    Type: Application
    Filed: January 27, 2022
    Publication date: March 28, 2024
    Applicant: RHODIA OPERATIONS
    Inventors: Diego Lopez Gonzalez, Thierry Le Mercier, Lauriane D'Alencon, Laure Bertry, Marc-David Braida, Vincent Finsy
  • Patent number: 11912934
    Abstract: The instant invention friction reducer formulation comprising friction reducer polymers such as PAM within the dispersed phase of an inverse emulsion containing a composition C which comprises a mixture of: —at least an alkanolamide emulsifier; and —a block copolymer comprising: —a hydrophilic block A comprising units deriving from a mono-alpha-ethylenically-unsaturated monomers; and —a hydrophobic block B.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: February 27, 2024
    Assignee: RHODIA OPERATIONS
    Inventors: Helène Martin, Patrick Moreau, Arnaud Cadix
  • Publication number: 20240051828
    Abstract: The invention relates to a new method for producing an onium salt of bis(fluorosulfonyl)imide and an alkali metal salt of bis(fluorosulfonyl)imide of high purities, as industrial scale, and with a reasonable cost when compared to the other available methods. Said method comprises the steps of reacting bis(chlorosulfonyl)imide or salts thereof with an onium halide other than an onium fluoride to produce an onium salt of bis(chlorosulfonyl)imide, reacting the onium salt of bis(chlorosulfonyl)imide with an onium fluoride to produce an onium salt of bis(fluorosulfonyl)imide; the onium salt of bis(fluorosulfonyl)imide may be further reacted with an alkali metal salt to obtain an alkali metal salt of bis(fluorosulfonyl)imide.
    Type: Application
    Filed: November 25, 2021
    Publication date: February 15, 2024
    Applicant: RHODIA OPERATIONS
    Inventor: Etienne Schmitt
  • Publication number: 20240051910
    Abstract: A method for producing glycolic acid includes selectively hydrogenating glyoxylic acid using a catalyst comprising at least one transition metal element, the glycolic acid produced, which has a bio-based carbon content of above 50%. A method for preparing a composition selected from the group consisting of cosmetics, home care products, personal care products, textiles, food, beverages, drugs, fragrances, inks, or paints includes adding the glycolic acid to the composition.
    Type: Application
    Filed: December 22, 2021
    Publication date: February 15, 2024
    Applicant: RHODIA OPERATIONS
    Inventors: Fangzheng Su, Isabelle Storet, Stephane Streiff
  • Patent number: 11897783
    Abstract: The present invention relates to a porous aluminum hydrate, to a process for preparing same and to the use of same as intermediate in the preparation of an alumina or of a mixed oxide based on aluminum, on cerium and on zirconium. The invention also relates to the alumina obtained from the aluminum hydrate.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: February 13, 2024
    Assignee: RHODIA OPERATIONS
    Inventors: Julien Hernandez, Olivier Larcher
  • Patent number: 11897779
    Abstract: It relates to a microporous aluminotitanosilicate crystalline zeolite, method of preparation and applications thereof. It extends to a catalytic hydroxylation, by reaction of a compound of formula (I) with H2O2 in the presence of a catalyst comprising the zeolite.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: February 13, 2024
    Assignees: East China Normal University, RHODIA OPERATIONS
    Inventors: Fangzheng Su, Stéphane Streiff, Laurent Garel, Peng Wu, Jianyong Yin, Xinqing Lu
  • Publication number: 20240043626
    Abstract: A method for the selective cleavage of a compound comprising an aromatic ring and a C—O—C linkage in the presence of a heterogeneous catalyst is provided. The heterogenous catalyst may be a supported noble metal catalyst doped with a halogen selected from the group consisting of chlorine and bromine. By using this method, it is possible to increase the selectivity and/or yield (preferably both) of aromatic compounds.
    Type: Application
    Filed: December 14, 2020
    Publication date: February 8, 2024
    Applicants: RHODIA OPERATIONS, LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE LILLE, CENTRALE LILLE INSTITUT
    Inventors: Dan Wu, Vitaly Ordomsky, Andrei Khodakov, Stephane Streiff, Jianxia Zheng
  • Patent number: 11884867
    Abstract: Disclosed are ethylenically unsaturated salts of allyl (poly)ether sulfates utilized as reactive surfactants or emulsifiers during emulsion polymerization.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: January 30, 2024
    Assignee: RHODIA OPERATIONS
    Inventors: Lichang Zhou, Adnan Siddiqui, Dongcheel Lee, Derek Pakenham, Eugene J. Anderson, Shailesh Majmudar, Eunyong Kim, Homayoun Jamasbi, An Tran, Peng Zhang
  • Patent number: 11884551
    Abstract: A precipitated silica having a broad particle size distribution and large median particle size as well as its method of manufacture is provided. The precipitated silica has a CTAB surface area SCTAB in the range from 40 to 300 m2/g, a difference between BET surface area SBET and CTAB surface area SCTAB of at least 35 m2/g, a width of the particle size distribution Ld, measured by centrifugal sedimentation, of at least 1.5, an amount of aluminium WA1 in the range from 0.5 to 7.0 wt %, and a median particle size d50, measured by centrifugal sedimentation, such that for a given value of CTAB surface area SCTAB and amount of aluminium WAl, parameter A, defined by the following equation: A=|d50|+0.782×|SCTAB|?8.524×|WAl|.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: January 30, 2024
    Assignee: RHODIA OPERATIONS
    Inventors: Emmanuelle Allain Najman, Fabien Stocklouser, Pascaline Garbey, Caroline Fayolle, Sylvaine Neveu, Laurent Guy