Patents by Inventor Nuno PACHECO

Nuno PACHECO 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).

  • Patent number: 11136422
    Abstract: A process for the synthesis of an ethylene/butadiene copolymer is provided. The process is continuous and comprises: a. feeding at least one stirred polymerization reactor with a mixture of ethylene, butadiene, hydrocarbon-based solvent and catalytic system allowing the formation of cyclic trans-1,2-cyclohexane units in the polymer chain with a mole ratio of ethylene to the sum of the ethylene and butadiene monomers ranging from 0.5 to 0.99; the concentration of ethylene and butadiene monomers in the polymerization reaction medium being at least 10% by weight relative to the total weight; the operating pressure of the reactor is greater than or equal to the saturated vapour pressure of the polymerization reaction medium; b. recovering the ethylene/butadiene copolymer, this copolymer comprising, statistically distributed, ethylene units, butadiene units and trans-1,2-cyclohexane units, the molar fraction of ethylene units in the copolymer being greater than or equal to 50%.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: October 5, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Julien Thuilliez, Nuno Pacheco
  • Patent number: 10844149
    Abstract: An ethylene/butadiene copolymer comprising statistically distributed ethylene units and butadiene unit is provided. The molar fraction of the ethylene units in the copolymer is greater than or equal to 50%, relative to the total number of moles of ethylene and butadiene units. The microstructure of the copolymer is homogeneous. A process for preparing such a copolymer and also the uses of this copolymer, in particular in rubber compositions for tires is also provided.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 24, 2020
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Nuno Pacheco, Julien Thuilliez
  • Patent number: 10822475
    Abstract: An ethylene/butadiene copolymer comprising statistically distributed ethylene units butadiene units, and trans-1,2-cyclohexane units is provided. The molar fraction of ethylene units in the copolymer is greater than or equal to 50%, relative to the total number of moles of ethylene, butadiene and trans-1,2-cyclohexane units. The microstructure of the copolymer is homogeneous. A process for preparing such a copolymer and also to the uses of this copolymer, in particular in rubber compositions for tires, is also provided.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 3, 2020
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN CLERMONT-FERRAND
    Inventors: Julien Thuilliez, Nuno Pacheco
  • Publication number: 20200339716
    Abstract: An ethylene/butadiene copolymer comprising statistically distributed ethylene units and butadiene units is provided. The molar fraction of the ethylene units in the copolymer is greater than or equal to 50%, relative to the total number of moles of ethylene and butadiene units. The microstructure of the copolymer is homogeneous. A process for preparing such a copolymer and also the uses of this copolymer, in particular in rubber compositions for tires is also provided.
    Type: Application
    Filed: July 10, 2020
    Publication date: October 29, 2020
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Nuno PACHECO, Julien THUILLIEZ
  • Patent number: 10766846
    Abstract: The invention relates to a method for producing butadiene that is fed with a butanediol feedstock, with said method comprising at least: a) An esterification step comprising: A reaction section; A separation section producing a butanediol diester effluent, a water effluent, and a carboxylic acid effluent; b) An esterification pyrolysis step; c) A separation step comprising at least: A cooling section producing a liquid pyrolysis effluent and a vapor pyrolysis effluent; A gas-liquid washing section that is fed at the top with a fraction of the carboxylic acid effluent that is obtained from the separation section of step a) and at the bottom with said vapor pyrolysis effluent and producing at the top a butadiene effluent and at the bottom a washing effluent; in which a carboxylic-acid-rich stream comprising at least a portion of the liquid pyrolysis effluent is recycled to step a); d) A separation step.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: September 8, 2020
    Assignees: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Marc Jacquin, Nuno Pacheco, Rejane Dastillung, Sophie Couderc, Claire Fauvarque Nuytien
  • Patent number: 10647624
    Abstract: The invention relates to a method for producing 1,3-butanediene from a butanediol feedstock that includes: a) A step for esterification of butanediol by a carboxylic acid to form the corresponding diester; b) A step for pyrolysis of the diester effluent obtained from step a); c) A step for distillation fed by at least the carboxylic acid effluent obtained from step a), and producing an aqueous distillate and a carboxylic acid residue; d) A step for drying the carboxylic acid that is fed at least by the carboxylic acid residue obtained from step c) and producing a water effluent and a carboxylic acid product that feeds step a).
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: May 12, 2020
    Assignees: IFP Energies nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Nuno Pacheco, Margarita Dorato, Marc Jacquin, Rejane Dastillung, Sophie Couderc
  • Publication number: 20200131288
    Abstract: A process for the synthesis of an ethylene/butadiene copolymer is provided. The process is continuous and comprises: a. feeding at least one stirred polymerization reactor with a mixture of ethylene, butadiene, hydrocarbon-based solvent and catalytic system allowing the formation of cyclic trans-1,2-cyclohexane units in the polymer chain with a mole ratio of ethylene to the sum of the ethylene and butadiene monomers ranging from 0.5 to 0.99; the concentration of ethylene and butadiene monomers in the polymerization reaction medium being at least 10% by weight relative to the total weight; the operating pressure of the reactor is greater than or equal to the saturated vapour pressure of the polymerization reaction medium; b. recovering the ethylene/butadiene copolymer, this copolymer comprising, statistically distributed, ethylene units, butadiene units and trans-1,2-cyclohexane units, the molar fraction of ethylene units in the copolymer being greater than or equal to 50%.
    Type: Application
    Filed: April 16, 2018
    Publication date: April 30, 2020
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Julien THUILLIEZ, Nuno PACHECO
  • Patent number: 10508062
    Abstract: The invention pertains to a method for converting butanediol into butadiene that is fed with a butanediol feedstock, where said method comprises at least an esterification step, a pyrolysis step, and a step for separation of the pyrolysis effluent comprising at least one section for cooling said pyrolysis effluent and producing a liquid pyrolysis effluent and a steam pyrolysis effluent and a gas-liquid washing section that is fed at the top with a fraction of the butanediol diester effluent obtained from the esterification step and at the bottom with the steam pyrolysis effluent, where said section produces a butadiene effluent at the top and a washing effluent at the bottom.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: December 17, 2019
    Assignees: IFP ENERGIES NOUVELLES, COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Marc Jacquin, Nuno Pacheco, Claire Fauvarque-Nuytten
  • Publication number: 20190300470
    Abstract: The invention relates to a method for producing butadiene that is fed with a butanediol feedstock, with said method comprising at least: a) An esterification step comprising: A reaction section; A separation section producing a butanediol diester effluent, a water effluent, and a carboxylic acid effluent; b) An esterification pyrolysis step; c) A separation step comprising at least: A cooling section producing a liquid pyrolysis effluent and a vapor pyrolysis effluent; A gas-liquid washing section that is fed at the top with a fraction of the carboxylic acid effluent that is obtained from the separation section of step a) and at the bottom with said vapor pyrolysis effluent and producing at the top a butadiene effluent and at the bottom a washing effluent; in which a carboxylic-acid-rich stream comprising at least a portion of the liquid pyrolysis effluent is recycled to step a); d) A separation step.
    Type: Application
    Filed: October 12, 2017
    Publication date: October 3, 2019
    Applicants: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Marc JACQUIN, Nuno PACHECO, Rejane DASTILLUNG, Sophie COUDERC, Claire FAUVARQUE NUYTIEN
  • Patent number: 10421706
    Abstract: The invention relates to a conversion method that is fed with a diol feedstock that comprises at least 90% by weight of diol and a carboxylic acid feedstock that comprises at least 80% by weight of carboxylic acid. The method comprising at least: An esterification step which is fed with at least the diol feedstock and at least the carboxylic acid feedstock, wherein the carboxylic acid/diol molar ratio at the inlet of the esterification step is between 2 and 6, the esterification step comprises at least one reactive distillation column that has a mixed reaction/separation zone located between two separation zones; and A water elimination step that is fed with distillate from the esterification step that comprises water and producing at least one water effluent.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: September 24, 2019
    Assignees: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Romain Richard, Damien Leinekugel Le Cocq, Marc Jacquin, Margarita Dorato, Nuno Pacheco, Claire Rannoux
  • Patent number: 10322978
    Abstract: A method for producing 1,3-butadiene from a 1,4-butanediol feedstock: One step for esterification of 1,4-butanediol, One step for pyrolysis of 1,4-butanediol diester, producing butadiene.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: June 18, 2019
    Assignees: IFP Energies nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Romain Richard, Marc Jacquin, Margarita Dorato, Nuno Pacheco, Claire Rannoux
  • Publication number: 20190161419
    Abstract: The invention pertains to a method for converting butanediol into butadiene that is fed with a butanediol feedstock, where said method comprises at least an esterification step, a pyrolysis step, and a step for separation of the pyrolysis effluent comprising at least one section for cooling said pyrolysis effluent and producing a liquid pyrolysis effluent and a steam pyrolysis effluent and a gas-liquid washing section that is fed at the top with a fraction of the butanediol diester effluent obtained from the esterification step and at the bottom with the steam pyrolysis effluent, where said section produces a butadiene effluent at the top and a washing effluent at the bottom.
    Type: Application
    Filed: May 9, 2017
    Publication date: May 30, 2019
    Applicants: IFP ENERGIES NOUVELLES, COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Marc JACQUIN, Nuno PACHECO, Claire FAUVARQUE-NUYTTEN
  • Patent number: 10233312
    Abstract: A modified diene elastomer comprises: at least 55% by weight of entity coupled by a functional group bearing a function of formula —SiOR, in which R is a hydrogen atom or an alkyl radical, and optionally bearing another function capable of interacting with a reinforcing filler, from 5% by weight to 30% by weight of star-branched entity having three elastomeric branches connected to one and the same silicon atom belonging to a functional group bearing or not bearing a function capable of interacting with a reinforcing filler, less than or equal to 15% by weight of entity functionalized at the chain end by a functional group bearing a function —Si(OR)2, in which R is a hydrogen atom or an alkyl radical, and optionally bearing another function capable of interacting with a reinforcing filler, and a content of less than or equal to 15% by weight of non-functional diene elastomer.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: March 19, 2019
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.
    Inventors: Charlotte Dire, Jean-Marc Marechal, Margarita Dorato, Mathieu Manceau, Nuno Pacheco
  • Publication number: 20180371129
    Abstract: An ethylene/butadiene copolymer comprising statistically distributed ethylene units and butadiene units is provided. The molar fraction of the ethylene units in the copolymer is greater than or equal to 50%, relative to the total number of moles of ethylene and butadiene units. The microstructure of the copolymer is homogeneous. A process for preparing such a copolymer and also the uses of this copolymer, in particular in rubber compositions for tires is also provided.
    Type: Application
    Filed: December 16, 2016
    Publication date: December 27, 2018
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Nuno PACHECO, Julien THUILLIEZ
  • Publication number: 20180370869
    Abstract: The invention relates to a method for producing 1,3-butanediene from a butanediol feedstock that includes: a) A step for esterification of butanediol by a carboxylic acid to form the corresponding diester; b) A step for pyrolysis of the diester effluent obtained from step a); c) A step for distillation fed by at least the carboxylic acid effluent obtained from step a), and producing an aqueous distillate and a carboxylic acid residue; d) A step for drying the carboxylic acid that is fed at least by the carboxylic acid residue obtained from step c) and producing a water effluent and a carboxylic acid product that feeds step a).
    Type: Application
    Filed: December 13, 2016
    Publication date: December 27, 2018
    Applicants: IFP Energies nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Nuno PACHECO, Margarita DORATO, Marc JACQUIN, Rejane DASTILLUNG, Sophie COUDERC
  • Publication number: 20180371214
    Abstract: An ethylene/butadiene copolymer comprising statistically distributed ethylene units butadiene units, and trans-1,2-cyclohexane units is provided. The molar fraction of ethylene units in the copolymer is greater than or equal to 50%, relative to the total number of moles of ethylene, butadiene and trans-1,2-cyclohexane units. The microstructure of the copolymer is homogeneous. A process for preparing such a copolymer and also to the uses of this copolymer, in particular in rubber compositions for tires, is also provided.
    Type: Application
    Filed: December 16, 2016
    Publication date: December 27, 2018
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Julien THUILLIEZ, Nuno PACHECO
  • Publication number: 20180194867
    Abstract: A system for the continuous synthesis of a modified diene elastomer is provided. The system comprises a device for modifying a living diene elastomer resulting from an anionic polymerization step, modelled on one of the following models: 1. a tubular reactor with axial dispersion, 2. a tubular reactor with axial dispersion, in series with at least one continuous stirred reactor, presumed to be perfectly stirred, 3. at least one tubular reactor with axial dispersion, in series with a continuous stirred reactor, presumed to be perfectly stirred, 4. several tubular reactors with axial dispersion, in series with several continuous stirred reactors, presumed to be perfectly stirred, 5. at least two continuous stirred reactors, presumed to be perfectly stirred, in series.
    Type: Application
    Filed: January 22, 2018
    Publication date: July 12, 2018
    Applicants: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Charlotte DIRE, Jean-Marc MARECHAL, Margarita DORATO, Mathieu MANCEAU, Nuno PACHECO
  • Patent number: 9908949
    Abstract: A continuous method for synthesizing a diene elastomer includes modifying the diene elastomer in a functionalizing device by: a kinetic model according to which the ratio of the rate constants is greater than 1, and a flow represented by a residence time distribution in the functionalizing device that is expressed according to equations 1 or 3: (i) in a functionalizing device having at least one tubular continuous reactor or having at least one cascade of at least two stirred reactors, E 1 ? ( t ) = 1 2 ? ( P ?? 1 ? t ) 1 2 ? e - P ? ( ? 1 - t ) 2 4 ? ? 1 ? t Eq ? ? 1 (ii) in a functionalizing device that is a combination of the device (i) and of a device having at least one continuous stirred reactor, having a residence time distribution characterized by the following equation: E 2 ? ( t ) = e ( - t ? 2 ) ? 2 Eq ? ? 2 the device (ii) having a residence time distribution characterized by the
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: March 6, 2018
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Charlotte Dire, Jean-Marc Marechal, Margarita Dorato, Mathieu Manceau, Nuno Pacheco
  • Publication number: 20180037519
    Abstract: A method for producing 1,3-butadiene from a 1,4-butanediol feedstock: One step for esterification of 1,4-butanediol, One step for pyrolysis of 1,4-butanediol diester, producing butadiene.
    Type: Application
    Filed: February 17, 2016
    Publication date: February 8, 2018
    Applicants: IFP Energies nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Romain RICHARD, Marc JACQUIN, Margarita DORATO, Nuno PACHECO, Claire RANNOUX
  • Publication number: 20180022682
    Abstract: The invention relates to a conversion method that is fed with a diol feedstock that comprises at least 90% by weight of diol and a carboxylic acid feedstock that comprises at least 80% by weight of carboxylic acid. The method comprising at least: An esterification step which is fed with at least the diol feedstock and at least the carboxylic acid feedstock, wherein the carboxylic acid/diol molar ratio at the inlet of the esterification step is between 2 and 6, the esterification step comprises at least one reactive distillation column that has a mixed reaction/separation zone located between two separation zones; and A water elimination step that is fed with distillate from the esterification step that comprises water and producing at least one water effluent.
    Type: Application
    Filed: February 17, 2016
    Publication date: January 25, 2018
    Applicants: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Romain RICHARD, Damien LEINEKUGEL LE COCQ, Marc JACQUIN, Margarita DORATO, Nuno PACHECO, Claire RANNOUX