Patents by Inventor Vincent LAFAQUIERE

Vincent LAFAQUIERE 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: 11130826
    Abstract: A catalytic system based at least on a preformation monomer selected from the group consisting of 1,3-dienes, ethylene, ?-olefins and their mixtures, on a metallocene of formula {P(Cp)(Flu)LnG} and on an organometallic compound as cocatalyst is provided. In the formula, Ln denotes a metal atom which is a rare earth metal, G denotes a group comprising the borohydride BH4 unit or denotes a halogen atom X selected from the group consisting of chlorine, fluorine, bromine and iodine, Cp denotes a cyclopentadienyl group of formula C5H4, Flu denotes a fluorenyl group of formula C13H8, P being a group bridging the two Cp and Flu groups and comprising a silicon or carbon atom. Such a catalytic system exhibits an improved stability of the catalytic activity over time, in particular on storage.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: September 28, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent Lafaquiere, Julien Thuilliez
  • Patent number: 11104755
    Abstract: A copolymer of a 1,3-diene and of an olefin selected from the group consisting of ?-monoolefins, ethylene and mixtures thereof is provided. The copolymer bears, at one of its chain ends, an alkoxysilyl or silanol function, functional group F1, and the copolymer is different from a copolymer of a 1,3-diene and a vinylaromatic monomer.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: August 31, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Julien Thuilliez, Vincent Lafaquiere, Leyla Pehlivan, Benoît Macqueron, Christophe Boisson, Franck D'Agosto
  • Publication number: 20210230325
    Abstract: A copolymer of ethylene and of isoprene, which comprises from 10 to 35 mol % of isoprene units, at least 70% of which are in the 3,4 configuration and a portion of which is in the 1,2 configuration is provided. A copolymer of this type with a reduced crystallinity is synthesized with a much higher productivity than its homologues of ethylene and of butadiene, and also confers improved curing properties on rubber compositions.
    Type: Application
    Filed: May 27, 2019
    Publication date: July 29, 2021
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: José-Carlos ARAUJO DA SILVA, Vincent LAFAQUIERE, Emma MORESO, Julien THUILLIEZ, Aurélie TRIGUEL
  • Publication number: 20210147884
    Abstract: The present invention relates to the use of type III polyketide synthases of bacteria, such as actinomycete bacteria, as phloroglucinol synthases. The present invention also relates to the isolated nucleic acid molecules encoding these type III polyketide synthases, and also to the vectors and the host cells comprising such nucleic acid molecules. The present invention also relates to methods for producing phloroglucinol.
    Type: Application
    Filed: June 29, 2018
    Publication date: May 20, 2021
    Inventors: VINCENT LAFAQUIERE, ODILE RAMAEN, DOMINIQUE LOUIS
  • Publication number: 20210079135
    Abstract: A rubber composition which comprises at least one reinforcing inorganic filler and a highly saturated elastomer comprising 1,3-diene units and ethylene units and bearing, at the chain end, a functional group F1 which is a silanol or alkoxysilane function is provided. The ethylene units represent more than 50 mol % of all the monomer units of the elastomer. The rubber composition has an improved hysteresis/stiffness compromise.
    Type: Application
    Filed: June 6, 2018
    Publication date: March 18, 2021
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Julien THUILLIEZ, Emma MORESO, Vincent LAFAQUIERE
  • Patent number: 10934377
    Abstract: A catalytic system based at least on a preformation monomer which is ethylene or a mixture of ethylene and of a conjugated diene, on a metallocene of formula {P(Cp1)(Cp2)Y} or Cp3Cp4Y and on an organometallic compound as cocatalyst, Y denoting a group comprising a metal atom which is a rare earth metal, the Cp1, Cp2, Cp3 and Cp4 groups, which are identical or different, being selected from the group consisting of fluorenyl groups, cyclopentadienyl groups and indenyl groups, the groups being substituted or unsubstituted, and P being a group bridging the two Cp1 and Cp2 groups and comprising a silicon or carbon atom, is provided. Such a catalytic system exhibits an improved stability of the catalytic activity over time, in particular on storage.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: March 2, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent Lafaquiere, Julien Thuilliez
  • Publication number: 20210054118
    Abstract: A copolymer of ethylene and of a 1,3-diene of formula CH2?CR—CH?CH2 is provided. The ethylene units represent between 50 mol % and 95 mol % of the ethylene units and of the units of the 1,3-diene, and the units of the 1,3-diene of 1,2 and 3,4 configuration represent more than 50 mol % of the units of the 1,3-diene. The symbol R represents a hydrocarbon chain having from 3 to 20 carbon atoms. Such a copolymer exhibits an improved compromise between the degree of crystallinity and the stiffness and makes it possible to widen the field of application of ethylene-rich diene copolymers in rubber compositions.
    Type: Application
    Filed: March 18, 2019
    Publication date: February 25, 2021
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent LAFAQUIERE, Emma MORESO
  • Publication number: 20210009729
    Abstract: A copolymer of ethylene and of myrcene, in which the ethylene units represent between 50 mol % and 95 mol % of the ethylene units and of the myrcene units, and the myrcene units of 1,2 and 3,4 configuration represent more than 50 mol % of the myrcene units, is provided. Such a copolymer exhibits an improved compromise between the degree of crystallinity and the stiffness. It therefore makes it possible to widen the field of application of ethylene-rich diene copolymers in rubber compositions, and also to increase the production capacity of a unit for the synthesis of ethylene-rich diene polymers.
    Type: Application
    Filed: March 18, 2019
    Publication date: January 14, 2021
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent LAFAQUIERE, Emma MORESO
  • Patent number: 10752712
    Abstract: A catalytic system based at least on a preformation conjugated diene monomer, on an organometallic compound as cocatalyst and on a metallocene of formula {P(Cp1)(Cp2)Y} is provided. In the formula, Y denotes a group comprising a metal atom which is a rare earth metal, Cp1 and Cp2, which are identical or different, are selected from the group consisting of fluorenyl groups, cyclopentadienyl groups and indenyl groups, the groups being substituted or unsubstituted, and P is a group bridging the two Cp1 and Cp2 groups and comprising a silicon or carbon atom. Such a catalytic system exhibits an improved stability of the catalytic activity over time, in particular on storage.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: August 25, 2020
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent Lafaquiere, Julien Thuilliez
  • Publication number: 20200157268
    Abstract: A copolymer of a 1,3-diene and of an olefin selected from the group consisting of ?-monoolefins, ethylene and mixtures thereof is provided. The copolymer bears, at one of its chain ends, an alkoxysilyl or silanol function, functional group F1, and the copolymer is different from a copolymer of a 1,3-diene and a vinylaromatic monomer.
    Type: Application
    Filed: June 6, 2018
    Publication date: May 21, 2020
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Julien THUILLIEZ, Vincent LAFAQUIERE, Leyla PEHLIVAN, Benoît MACQUERON, Christophe BOISSON, Franck D'AGOSTO
  • Publication number: 20200140587
    Abstract: An ethylene/1,3-butadiene copolymer containing ethylene units, butadiene units and UD units of cyclic, 1,2-cyclohexanediyl structure, and bearing, at one of its chain ends, an alkoxysilyl or silanol function, functional group F1 is provided.
    Type: Application
    Filed: June 6, 2018
    Publication date: May 7, 2020
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Julien THUILLIEZ, Vincent LAFAQUIERE, Leyla PEHLIVAN, Benoît MACQUERON, Christophe BOISSON, Franck D'AGOSTO
  • Publication number: 20200123508
    Abstract: Methods for producing phloroglucinol as well as methods of using type III polyketide synthases as phloroglucinol synthases, in particular the type III polyketide synthases of algae, such as eukaryotic ochrophyte algae, are described herein. In addition, polypeptides that have phloroglucinol synthase activity, the isolated nucleic acid molecules encoding these type III polyketide synthases, and the vectors and the host cells comprising such nucleic acid molecules are also described.
    Type: Application
    Filed: June 29, 2018
    Publication date: April 23, 2020
    Inventors: VINCENT LAFAQUIERE, ODILE RAMAEN, DOMINIQUE LOUIS
  • Publication number: 20190359742
    Abstract: A catalytic system based at least on a preformation monomer selected from the group consisting of 1,3-dienes, ethylene, ?-monoolefins and their mixtures, on a metallocene of formula {P(Cp)(Flu)LnG} and on an organometallic compound as cocatalyst is provided. In the formula, Ln denotes a metal atom which is a rare earth metal, G denotes a group comprising the borohydride BH4 unit or denotes a halogen atom X selected from the group consisting of chlorine, fluorine, bromine and iodine, Cp denotes a cyclopentadienyl group of formula C5H4, Flu denotes a fluorenyl group of formula C13H8, P being a group bridging the two Cp and Flu groups and comprising a silicon or carbon atom. Such a catalytic system exhibits an improved stability of the catalytic activity over time, in particular on storage.
    Type: Application
    Filed: November 28, 2017
    Publication date: November 28, 2019
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent LAFAQUIERE, Julien THUILLIEZ
  • Publication number: 20190263954
    Abstract: A catalytic system based at least on a preformation monomer which is ethylene or a mixture of ethylene and of a conjugated diene, on a metallocene of formula {P(Cp1)(Cp2)Y} or Cp3Cp4Y and on an organometallic compound as cocatalyst, Y denoting a group comprising a metal atom which is a rare earth metal, the Cp1, Cp2, Cp3 and Cp4 groups, which are identical or different, being selected from the group consisting of fluorenyl groups, cyclopentadienyl groups and indenyl groups, the groups being substituted or unsubstituted, and P being a group bridging the two Cp1 and Cp2 groups and comprising a silicon or carbon atom, is provided. Such a catalytic system exhibits an improved stability of the catalytic activity over time, in particular on storage.
    Type: Application
    Filed: July 24, 2017
    Publication date: August 29, 2019
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent LAFAQUIERE, Julien THUILLIEZ
  • Publication number: 20190248822
    Abstract: A one-pot process for preparing a preformed catalytic system based on a rare-earth metallocene in a hydrocarbon solvent in three performed steps.
    Type: Application
    Filed: July 24, 2017
    Publication date: August 15, 2019
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: François JEAN-BAPTISTE-DIT-DOMINIQUE, Vincent LAFAQUIERE, Julien THUILLIEZ
  • Publication number: 20190233566
    Abstract: A catalytic system based at least on isoprene as preformation monomer, on a metallocene of formula {P(Cp1)(Cp2)Y} and on an organometallic compound as cocatalyst, Y denoting a group comprising a metal atom which is a rare earth metal, Cp1 and Cp2, which are identical or different, being selected from the group consisting of fluorenyl groups, cyclopentadienyl groups and indenyl groups, the groups being substituted or unsubstituted, and P being a group bridging the two Cp1 and Cp2 groups and comprising a silicon or carbon atom, is provided. Such a catalytic system is soluble and exhibits an increased stability of the catalytic activity over time, in particular on storage.
    Type: Application
    Filed: July 24, 2017
    Publication date: August 1, 2019
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent LAFAQUIERE, Julien THUILLIEZ
  • Publication number: 20180355083
    Abstract: A catalytic system based at least on a preformation conjugated diene monomer, on an organometallic compound as cocatalyst and on a metallocene of formula {P(Cp1)(Cp2)Y} is provided. In the formula, Y denotes a group comprising a metal atom which is a rare earth metal, Cp1 and Cp2, which are identical or different, are selected from the group consisting of fluorenyl groups, cyclopentadienyl groups and indenyl groups, the groups being substituted or unsubstituted, and P is a group bridging the two Cp1 and Cp2 groups and comprising a silicon or carbon atom. Such a catalytic system exhibits an improved stability of the catalytic activity over time, in particular on storage.
    Type: Application
    Filed: November 30, 2016
    Publication date: December 13, 2018
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent LAFAQUIERE, Julien THUILLIEZ