Patents Assigned to Rhodia Operations
  • Block polymers for fluid loss control
    Patent number: 11168026
    Abstract: The present invention relates to the use of a block polymer as fluid loss control agent in a fluid injected under pressure into an oil-bearing rock, where: the fluid comprises solid particles and/or is brought into contact with solid particles within the oil-bearing rock subsequent to its injection, the polymer comprises: a first block which is adsorbed on at least a portion of the particles; and a second block with a composition distinct from that of the first and with a weight-average molecular weight of greater than 10 000 g/mol, for example of greater than 100 000 g/mol, and which is soluble in the fluid.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: November 9, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Arnaud Cadix, David James Wilson
  • POLYMER DISPERSION BY CONTROLLED RADICAL POLYMERIZATION
    Publication number: 20210340436
    Abstract: Disclosed is a polymer dispersion prepared by controlled radical polymerization and a use of the polymer dispersion as a friction reducer in oil field processes.
    Type: Application
    Filed: October 11, 2018
    Publication date: November 4, 2021
    Applicant: RHODIA OPERATIONS
    Inventors: Zhenxing Cheng, Zhihua Zhang, Man Chen, Chee Fei Chin, David James Wilson
  • METHOD FOR THE CONTINUOUS PRODUCTION OF A COMPOSITE MATERIAL PROFILE SECTION FROM THERMOPLASTIC POLYMER HAVING HIGH FLUIDITY
    Publication number: 20210339487
    Abstract: The invention relates to a method for continuous production of a composite material profile by injection-pultrusion from at least one reinforcing fabric and at least one thermoplastic polymer having high fluidity, said method being characterized in that: i) said fabric is continuously pulled with a pulling speed of at least 0.4 m.min?1 in the course of said process; ii) the impregnation stage is performed by injection of a polymeric composition having high fluidity through the fabric; iii) the profile is then shaped with a specific thermal profile. The invention also relates to a profile obtained according to the method of the invention and a composite article comprising such a profile the curvature whereof may be modified in its curvature by bending and/or its profile by rotational molding.
    Type: Application
    Filed: May 19, 2021
    Publication date: November 4, 2021
    Applicants: RHODIA OPERATIONS, CENTRE TECHNIQUE DES INDUSTRIES MECANIQUES (CETIM)
    Inventors: Gilles Orange, Didier Tupinier, Philippe Papin, Mickaël Aubry, Jean-Michel Lebrun, Sébastien Comas-Cardona
  • Inorganic oxide material
    Patent number: 11154840
    Abstract: The present teachings are directed to inorganic oxide materials that include Al2O3, CeO2, and at least one of MgO and Pr6O11. The present teachings are also directed to catalysts having at least one noble metal supported on these inorganic oxide materials, as well as methods for treating exhaust gases from internal combustion engines using such catalysts.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: October 26, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Qiang Zhao, Olivier Larcher, Barry W. L. Southward, Francis Francis, Thomas English, Fabien Ocampo
  • Process for the preparation of precipitated silicas, precipitated silicas and their uses, in particular for the reinforcement of polymers
    Patent number: 11136462
    Abstract: The invention relates to a process for the preparation of a novel precipitated silica, wherein: a silicate is reacted with an acidifying agent, so as to obtain a silica suspension; said silica suspension is filtered, so as to obtain a filter cake; said filter cake is subjected to a liquefaction operation, in the absence of an aluminium compound; wherein a mixture of polycarboxylic acids is added to the filter cake, during or after the liquefaction operation. It also relates to novel precipitated silicas and to their uses.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: October 5, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Cédric Boivin, Laurent Guy, Eric Perin, Kilani Lamiri
  • Sulfate-free personal care compositions and methods for using such compositions
    Patent number: 11129786
    Abstract: The present invention relates to sulfate-free aqueous personal care composition comprising a surfactant system comprising at least one methyl oleoyl taurate, one isethionate and one alkoxylated sulfosuccinate, and from about 0.2 pbw to about 15 pbw of a conditioning agent. It is also directed toward the use of such a composition for washing keratin substrates, in particular the hair or the scalp.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: September 28, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Monique Martine Françoise Adamy, Jennifer Jessika Cazette
  • METHOD OF ACIDIZING A SUBTERRANEAN FORMATION COMPRISING A GELLING AGENT
    Publication number: 20210292639
    Abstract: Methods of acidizing a subterranean formation penetrated by a wellbore that include the steps of (a) injecting into the wellbore at a pressure below subterranean formation fracturing pressure a treatment fluid having a first viscosity and including an aqueous acid and a gelling agent selected from the group consisting of Formulas I-XI and combinations thereof; (b) forming at least one void in the subterranean formation with the treatment fluid; and (c) allowing the treatment fluid to attain a second viscosity that is greater than the first viscosity.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 23, 2021
    Applicant: RHODIA OPERATIONS
    Inventors: Rose NDONG, Olivier BACK, Pascal HERVE, Jian ZHOU
  • Polymeric systems for particle dispersion
    Patent number: 11118100
    Abstract: The present disclosure provides polymeric systems that are able to undergo fast hydration and are useful for maintaining particle dispersions for extended periods of time.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: September 14, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Changmin Jung, Lingjuan Shen, Christopher Smith, Hoang Van Le, Jian Zhou, Genyao Lin
  • Method for preparing stable composition with perfume
    Patent number: 11111460
    Abstract: The present invention relates to method for preparing composition containing at least a quaternary ammonium compound, a cationic polysaccharide, a fragrance material or perfume, a nonionic surfactant, and optionally a nonionic polysaccharide. The method notably comprises a step of preparing a premix of the fragrance material or perfume and the nonionic surfactant. Said composition may notably be used for fabric conditioning.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: September 7, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Hai Zhou Zhang, Nikolay Christov, Da Wei Jin, Lin He
  • Process for the decarboxylative ketonization of fatty acids or fatty acid derivatives
    Patent number: 11111190
    Abstract: Process (P) for the decarboxylative ketonization of fatty acids, fatty acid derivatives or mixtures thereof in the liquid phase with metal compounds as catalyst wherein the fatty acids, fatty acid derivatives or mixtures thereof are added sequentially. Downstream chemistry can be realized starting from internal ketones obtained by process (P), especially in order to design and develop new surfactants.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: September 7, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Olivier Back, Rémy Leroy, Philippe Marion
  • Soil additives for promoting seed germination, for prevention of evaporation and methods for use
    Patent number: 11111436
    Abstract: Disclosed are methods of improving germination rates of plants/crops, as well as preventing or arresting water evaporation loss from targeted soil areas, which allows for improved water usage efficiency by crops, plants, grasses, vegetation, etc.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: September 7, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Galder Cristobal, Pascal Metivier, Jean-Christophe Castaing, Pengfei Ji, Zhiyun Chen
  • Method for preparing precipitated silicas, novel precipitated silicas, and uses thereof, particularly for polymer reinforcement
    Patent number: 11104583
    Abstract: The invention relates to a process for preparing a precipitated silica, to precipitated silicas, and to uses thereof. The process of the invention generally includes reacting a silicate with an acidifying agent, so as to obtain a suspension of precipitated silica; filtering the precipitated silica to obtain a filter cake; subjecting the filter cake to a liquefaction operation to form a second filter cake; and drying the second filter cake.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: August 31, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Cédric Boivin, Laurent Guy, Eric Perin, Kilani Lamiri
  • DISINFECTANT CLEANING COMPOSITIONS AND METHODS OF USE THEREOF
    Publication number: 20210251225
    Abstract: The present disclosure provides a method for killing pathogens on a surface, the method comprising applying a composition to the surface, the composition comprising: at least one quaternary ammonium compound; a polymer comprising one or more types of monomer units selected from cationic monomer units, anionic monomer units, amphoteric monomer units, non-ionic monomer units, and combinations thereof, wherein at least one cationic monomer unit, amphoteric monomer unit or at least one anionic monomer unit is present when the polymer comprises one or more non-ionic monomer units; a surfactant selected from cationic surfactants, amphoteric surfactants, non-ionic surfactants, and combinations thereof; and, optionally, an organic acid, wherein the pH of the composition is less than 5; and the composition achieves at least 0.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 19, 2021
    Applicant: RHODIA OPERATIONS
    Inventors: Amit SEHGAL, Laura GAGE, Kamel RAMDANI
  • STABILIZED DCD AND/OR ALKYL THIOPHOSPHORIC TRIAMIDE SOLVENT SYSTEMS AND USE IN AGRICULTURAL APPLICATIONS
    Publication number: 20210253491
    Abstract: An inhibitor composition contains alkyl thiophosphoric triamide (or a mixture of alkyl thiophosphoric triamide and dicyandiamide), dissolved in a liquid medium comprising at least one organic solvent, at least one amine stabilizer and, optionally, at least one dye and/or at least one odor masking agent, is useful in making fertilizer compositions and in a method of fertilizing target plants.
    Type: Application
    Filed: March 12, 2021
    Publication date: August 19, 2021
    Applicant: RHODIA OPERATIONS
    Inventors: Hong LIU, Jiamin WU, Andre GOMES, Krish SHANMUGA, Zhiyun CHEN
  • Process for the decarboxylative ketonization of fatty acids or fatty acid derivatives
    Patent number: 11091417
    Abstract: The present invention is directed to a process for synthesizing an internal ketone K1 by decarboxylative ketonization reaction of a fatty acid, a fatty acid derivative or a mixture thereof in a liquid phase with a metal compound as catalyst in a reaction medium, said process being characterized in that a ketone K2 at liquid state, which is identical or similar to the ketone K1, is introduced into the reaction medium. The so-synthesized internal ketone K1 can be used for the preparation of a variety of end compounds, including surfactants having a twin-tail structure or a Gemini structure.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: August 17, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Olivier Back, Rémy Leroy, Philippe Marion
  • Method for preparing precipitated silicas, novel precipitated silicas and uses thereof, particularly for the reinforcement of polymers
    Patent number: 11084729
    Abstract: The invention relates to a process for preparing a precipitated silica, to precipitated silicas, and to uses thereof. The process of the invention generally includes reacting a silicate with an acidifying agent, so as to obtain a suspension of precipitated silica; filtering the precipitated silica to obtain a filter cake; subjecting the filter cake to a liquefaction operation to form a second filter cake; and drying the second filter cake. In the process of the invention, at least one polycarboxylic acid is added to the filter cake, during or after the liquefaction operation.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: August 10, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Cédric Boivin, Laurent Guy, Eric Perin, Kilani Lamiri
  • Macroporous catalyst for the preparation of aliphatic amines
    Patent number: 11084776
    Abstract: A process for the preparation of aliphatic amines, comprises reacting an aliphatic alcohol with an aminating agent in the presence of a catalyst. The catalyst contains copper oxide on a support made of porous alumina, wherein the porous alumina has a volume, corresponding to pores greater than 500 ? in diameter, of from 10 ml/100 g to 95 ml/100 g.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 10, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Shengyin Ye, Javier Diaz-Maroto Carpintero, Fabien Ocampo, Philippe Leconte
  • PROGRESSIVE SALTING-OUT OF POLYMER CHAINS IN A LIQUID MEDIUM
    Publication number: 20210230471
    Abstract: The present invention relates to a method making it possible to ensure a gradual release of polymer chains within a liquid medium, said method comprising bringing said liquid medium into contact with specific solid objects formed by polymer chains soluble in the medium and carrying hydrophobic side groups ensuring physical crosslinking between said polymer chains within said solid objects. The released chains may in particular be used as inhibitors of the formation of inorganic or organic deposits (scale inhibitors) within a liquid medium, typically in the field of oil extraction.
    Type: Application
    Filed: July 2, 2019
    Publication date: July 29, 2021
    Applicant: RHODIA OPERATIONS
    Inventors: Dominique Labarre, Dqvid James Wilson
  • Encapsulation process
    Patent number: 11071318
    Abstract: The subject-matter of the invention is a process for encapsulating one or more substances with a matrix, wherein said process comprises the preparation of a mixture of said matrix in the liquid state with said substance(s), then the solidification of the mixture obtained, said matrix consisting of vanillin or ethylvanillin or a vanillin/ethylvanillin mixture. The solid compound thus obtained is particularly advantageous in the field of food for human consumption and animal feed, in the pharmaceutical field, as a fragrance in the cosmetics, perfumery and detergence field, or as an encapsulated active ingredient in the pharmaceutical field. The use of a compound chosen form vanillin, ethylvanillin and vanillin/ethylvanillin mixtures as encapsulating agent is also subject-matter of the present invention.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: July 27, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Martin Eduard Glasius, Sandrine Emmanuelle Bodin, Cédric Humblot
  • COMPOSITIONS AND METHODS FOR LONG LASTING DISINFECTION
    Publication number: 20210219545
    Abstract: An antimicrobial composition that includes: an antimicrobial component having at least one quaternary ammonium compound; a synthetic polymer that includes: at least one cationic monomer Ab, optionally, at least one anionic monomer Ba, and optionally, at least one non-ionic monomer Ca; an organic acid; and a surfactant selected from cationic surfactants, amphoteric surfactants and combinations thereof, wherein the composition is free of non-ionic surfactants. This composition when applied to a surface provides robust long lasting disinfection.
    Type: Application
    Filed: April 2, 2021
    Publication date: July 22, 2021
    Applicant: RHODIA OPERATIONS
    Inventors: Amit SEHGAL, Kamel RAMDANI, Christopher PLUMMER, Huw EVANS