Patents Assigned to Rhodia Operations
  • METAL SURFACE TREATMENT
    Publication number: 20230374336
    Abstract: The instant invention concerns the use of at least one polymer P obtained by radical copolymerization of a mixture of (i) acrylic acid; (ii) optionally methacrylic acid; and (iii) at least one ethylenically unsaturated monomer carrying an unsaturated heterocycle having at least two nitrogen atoms, said monomer being preferably an ethylenically unsaturated imidazole, for treating a metallic surface for treating a metallic surface intended to be coated by a paint, a varnish or an adhesive, for example intended to be adhesive-bonded to another surface, in order to impart a resistance to the adhesive failure to the resulting bonding.
    Type: Application
    Filed: October 1, 2021
    Publication date: November 23, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Guillaume Gody, Marie-Pierre Labeau, Vinayak Valodkar, Rakhi Sood, Manali Motiwale, Xavier Ivan Jérôme Revest, Cindy Granier, Justine Layec
  • METAL SURFACE TREATMENT
    Publication number: 20230374666
    Abstract: The instant invention concerns the use of at least one polymer P obtained by radical copolymerization of a mixture of (i) acrylic acid; (ii) methacrylic acid; and (iii) at least one monomer of formula: for treating a metallic surface intended to be coated by a paint, a varnish or an adhesive, for example intended to be adhesive-bonded to another surface, in order to impart a resistance to the adhesive failure to the resulting bonding.
    Type: Application
    Filed: October 1, 2021
    Publication date: November 23, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Guillaume Gody, Marie-Pierre Labeau, Cindy Granier, Justine Layec
  • PURIFICATION OF FERULIC ACID
    Publication number: 20230373896
    Abstract: The present invention relates to a method for purifying a liquid medium comprising ferulic acid, a solvent and at least one impurity, the method comprising a step (a) of bringing the liquid medium into contact with a first complexing agent so as to obtain a first precipitate P1 and a liquid medium C1, and a step (b) of separating the first precipitate P1 from the liquid medium C1 so as to obtain a liquid medium F1 comprising purified ferulic acid. The present invention also relates to a method for separating ferulic acid oligomers and to their use as a scavenger of free radicals or radical species, in particular as a polymerisation inhibitor, antioxidant or UV stabiliser.
    Type: Application
    Filed: September 30, 2021
    Publication date: November 23, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Laurent Garel, Tiago Alves Mendes
  • INVERTING SURFACTANTS FOR INVERSE EMULSIONS
    Publication number: 20230357629
    Abstract: Water-in-oil emulsions are provided that include an alkyl propylene diamine and an ethoxylated alcohol as the inverting surfactant, which is present in an amount less than 5 percent by weight of the water-in-oil emulsion.
    Type: Application
    Filed: June 9, 2020
    Publication date: November 9, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Stanley Gunawan, Zhihua Zhang, Shaopeng Zhang, Igor Pimkov, Zhenxing Cheng, Qi Qu
  • Aqueous coatings containing biosurfactants as bio-adjuvants and methods for using same
    Patent number: 11807780
    Abstract: Disclosed is an aqueous coating composition including at least one latex polymer derived from at least one monomer copolymerized or blended with a rhamnolipid and/or sophorolipid biosurfactant, which in one embodiment is a mono-rhamnolipid. Also provided is an aqueous architectural coating composition including at least one latex polymer derived from at least one monomer copolymerized or blended with a biosurfactant, at least one pigment, and water.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: November 7, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Laura Gage, Denis Bendejacq, Homayoun Jamasbi
  • METAL SURFACE TREATMENT
    Publication number: 20230340306
    Abstract: The instant invention concerns the use of at least one polymer P obtained by radical copolymerization of a mixture of (i) acrylic acid; (ii) methacrylic acid; and (iii) at least one 2-hydroxyethyl methacrylate phosphate for treating a metallic surface intended to be adhesive-bonded to another surface, in order to impart a resistance to the adhesive failure to the resulting bonding.
    Type: Application
    Filed: May 10, 2021
    Publication date: October 26, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Guillaume Gody, Marie-Pierre Labeau
  • Stabilized DCD and/or alkyl thiophosphoric triamide solvent systems and use in agricultural applications
    Patent number: 11795119
    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: Grant
    Filed: March 12, 2021
    Date of Patent: October 24, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Hong Liu, Jiamin Wu, Andre Gomes, Krish Shanmuga, Zhiyun Chen
  • Hair repair composition
    Patent number: 11779533
    Abstract: The invention relates to a method for mending split ends of hair comprising contacting the hair with split ends with a composition comprising at least one non-cellulosic polysaccharide derivative containing at least one cationic group, wherein said non-cellulosic polysaccharide derivative has a cationic degree of substitution DScat greater than 0.15.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: October 10, 2023
    Assignee: RHODIA OPERATIONS
    Inventor: Katerina Karagianni
  • PROCESS FOR THE PREPARATION OF ALKOXYLATES COMPOSITIONS
    Publication number: 20230312822
    Abstract: A mixture of two alkoxylates surfactants, one being an aryl aliphatic carbinol alkoxylate, the other one being a dialiphatic carbinol alkoxylate, said mixture being useful for stabilizing emulsions and dispersions used in agricultural or pharmaceutical formulations. The alkoxylates surfactants may serve as substitutes for nonylphenol ethoxylates (NPE) and tristyrylphenol ethoxylates (TSE).
    Type: Application
    Filed: June 8, 2023
    Publication date: October 5, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Olivier Back, Valerio Bramati
  • Cationic quaternary ammonium compounds and compositions comprising same and processes for their manufacture
    Patent number: 11773053
    Abstract: The present invention concerns new cationic quaternary ammonium compounds which exhibit excellent adsorption properties on negatively charged surfaces. These ones can notably be obtained firstly by reacting an internal ketone with a twin-tail amine under reductive amination conditions to obtain a twin tail triamine, then subjecting the twin tail triamine to a quaternization reaction. They can also obtained be obtained by the quaternization reaction of a certain diamine.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 3, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Olivier Back, Bing Hong, Matthieu Guirardel
  • Method of oxidizing glycolaldehyde using nitric acid
    Patent number: 11753362
    Abstract: The present invention relates to a method of synthesizing at least one organic acid comprising oxidizing glycolaldehyde with nitric acid in the presence of a solvent. Advantageously, it is an industrially applicable process, which prepares organic acid, notably glycolic acid and/or glyoxylic acid in a high yield based on bio-based feedstocks.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: September 12, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Zhen Yan, Bright Kusema, Sergio Mastroianni, Stéphane Streiff, Philippe Marion
  • ALUMINIUM AND ZIRCONIUM-BASED MIXED OXIDE
    Publication number: 20230234034
    Abstract: The present invention relates to a mixed oxide of aluminium, of zirconium, of cerium, of lanthanum and optionally of at least one rare-earth metal other than cerium and lanthanum that makes it possible to repair a catalyst that retains, after severe ageing, a good thermal stability and a good catalytic activity. The invention also relates to the process for preparing this mixed oxide and also to a process for treating exhaust gases from internal combustion engines using a catalyst prepared from this mixed oxide.
    Type: Application
    Filed: May 16, 2021
    Publication date: July 27, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Naotaka Ohtake, Toshihiro Sasaki, Kaoru Nishimura
  • Method of acidizing a subterranean formation comprising a gelling agent
    Patent number: 11708525
    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: Grant
    Filed: June 7, 2021
    Date of Patent: July 25, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Rose Ndong, Olivier Back, Pascal Herve, Jian Zhou
  • Process for the catalytic decarboxylative cross-ketonization of aryl and aliphatic carboxylic acid
    Patent number: 11708317
    Abstract: The present invention pertains to a process for the cross-ketonization (Piria reaction) between an aryl carboxylic acid and an aliphatic carboxylic acid using a metal-based compound and a slight or a moderate excess of aryl carboxylic acid. A good selectivity, up to 99 mol %, can be achieved. The aryl aliphatic ketone can be used for the preparation of surfactants and other downstream products.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: July 25, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Olivier Back, Philippe Marion
  • Processes for the manufacture of secondary fatty alcohols, internal olefins and internal olefin sulfonates
    Patent number: 11702386
    Abstract: Process P1 for the manufacture of a secondary fatty alcohol, said process P1 comprising synthesizing an internal ketone K1 by a process P0 comprising the decarboxylative ketonization reaction of a fatty acid or the like in a liquid phase with a metal compound as catalyst in a reaction medium, wherein a ketone K2 at liquid state, which is identical or similar to the internal ketone K1, is introduced into the reaction medium, and subjecting the internal ketone K1 to a hydrogenation reaction with hydrogen gas as hydrogenating agent to form the secondary fatty alcohol. Use of the secondary fatty alcohol manufactured by the process P1 for the manufacture of an internal olefin or of an internal olefin sulfonate.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: July 18, 2023
    Assignees: Solvay SA, RHODIA OPERATIONS
    Inventors: Olivier Back, Rémy Leroy, Philippe Marion
  • Silica suspensions
    Patent number: 11702345
    Abstract: Stable suspensions of silica particles in water-immiscible polar organic liquids are provided.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: July 18, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Frédéric Colbeau-Justin, Marc-David Braida, Mathilde Mignard
  • Formulations for enhanced oil recovery comprising sulfonates
    Patent number: 11692124
    Abstract: Compositions suitable for enhanced oil recovery comprising a) a mixture of ?-sulfocarbonyl compounds of formulae (1) and (2) in a mixture ratio (1) to (2) of from 1:99 to 99:1 wherein R1, R3 and R5, which may be the same or different at each occurrence, are hydrogen or a linear or branched alkyl chain having 1 to 20 carbon atoms, R2 and R4, which may be the same or different at each occurrence, may be a linear or branched alkyl group having 4 to 24 carbon atoms and in which the alkyl chain may comprise one or more cycloaliphatic groups, and X is H or a metal forming a salt with the sulfonate group, and b) a salt containing aqueous solution.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: July 4, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Olivier Back, Remy Leroy, Mikel Morvan, Patrick Moreau, Philippe Marion
  • Sulfate-free formulations
    Patent number: 11690794
    Abstract: An aqueous personal care composition comprising: one or more amphoacetates; one or more glutamate surfactants selected from sodium lauroyl glutamate, dipotassium cocoyl glutamate, potassium lauryl/myristoyl glutamate and combinations thereof; and cocamide MIPA; wherein the composition is free of sulfates and ethoxylates.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: July 4, 2023
    Assignee: Rhodia Operations
    Inventors: Mary Ronan, Rajesh Patel
  • POLYMERS FOR METAL SURFACE TREATMENT
    Publication number: 20230203345
    Abstract: The instant invention concerns the use of polymers obtained by radical copolymerization of a mixture of (1) acrylic acid; (2) methacrylic acid; and (3) at least one allylcatechol selected from 4-allylbenzene-1,2-diol, 3-allylbenzene-1,2-diol; methylated forms thereof (eugenols); and mixtures thereof, for treating a metallic surface intended to be adhesive-bonded to another surface, in order to impart a resistance to the adhesive failure to the resulting bonding.
    Type: Application
    Filed: May 10, 2021
    Publication date: June 29, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Guillaume Gody, Isabelle Storet, Laurent Garel, Marie-Pierre Labeau
  • METHOD FOR PREPARING A FATTY AMIDOALKYLDIALKYLAMINE
    Publication number: 20230183763
    Abstract: The present invent ion concerns a method for preparing a fatty amidoalkyldialkylamine by reacting a fatty acid with a dialkylaminoalkylamine, using a molar ratio of said dialkylaminoalkylamine to said fatty acid of more than 1 and up to 1.5, in the presence of Candida antarctica lipase as catalyst.
    Type: Application
    Filed: April 20, 2021
    Publication date: June 15, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Hocine Kabir, Cinthia Nakamura, Paula Delgado, Fernanda Hoelscher