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).
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Patent number: 11920178Abstract: 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: GrantFiled: June 29, 2018Date of Patent: March 5, 2024Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent Lafaquiere, Odile Ramaen, Dominique Louis
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Patent number: 11865865Abstract: A tire comprises a rubber layer comprising from 50% to 100% by mass of a rubber crumb having a ratio of the chloroform extract to the acetone extract of less than 2, the chloroform and acetone extracts being expressed as percentages by mass.Type: GrantFiled: December 13, 2019Date of Patent: January 9, 2024Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Nathalie Coste, Severin Dronet, Vincent Lafaquiere, Claire Rannoux
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Patent number: 11718692Abstract: 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: GrantFiled: March 18, 2019Date of Patent: August 8, 2023Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent Lafaquiere, Emma Moreso
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Publication number: 20230013682Abstract: The invention relates to a copolymer of ethylene and of a 1,3-diene of formula CH2?CR—CH?CH2, which copolymer bears an amine function, the symbol R representing a hydrocarbon chain having from 3 to 20 carbon atoms. Such a copolymer improves the compromise between the content of ethylene in the polymer, its crystallinity and the stiffness of a rubber composition containing it.Type: ApplicationFiled: September 17, 2020Publication date: January 19, 2023Inventors: Emma Moreso, Vincent Lafaquiere
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Publication number: 20220411619Abstract: The invention relates to a copolymer of ethylene and of a 1,3-diene of formula CH2?CR—CH?CH2, which copolymer bears a silanol or alkoxysilane function, the symbol R representing a hydrocarbon chain having from 3 to 20 carbon atoms. Such a copolymer improves the compromise between the content of ethylene in the polymer, its crystallinity and the stiffness of a rubber composition containing it.Type: ApplicationFiled: September 17, 2020Publication date: December 29, 2022Inventors: Emma Moreso, Vincent Lafaquiere
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Publication number: 20220389136Abstract: A terpolymer of ethylene, of a first 1,3-diene having from 4 to 6 carbon atoms and of a second 1,3-diene of formula CH2?CR-CH?CH2 is provided. The terpolymer contains more than 50 mol % of ethylene units and at least 1 mol % of units of the second 1,3-diene, the symbol R representing a hydrocarbon chain having from 3 to 20 carbon atoms. Such a polymer gives an improved compromise between its ethylene content, its stiffness and its degree of crystallinity for use in tires.Type: ApplicationFiled: September 17, 2020Publication date: December 8, 2022Inventors: Emma Moreso, Vincent Lafaquiere
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Patent number: 11512293Abstract: 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: GrantFiled: June 29, 2018Date of Patent: November 29, 2022Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent Lafaquiere, Odile Ramaen, Dominique Louis
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Patent number: 11326001Abstract: 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: GrantFiled: March 18, 2019Date of Patent: May 10, 2022Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent Lafaquiere, Emma Moreso
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Publication number: 20220098626Abstract: The present invention relates to a living cell, preferably a host cell, that is phloroglucinol resistant, said host cell being characterized in that it overexpresses a polypeptide selected from (i) transmembrane transporters of the ABC family, in particular transmembrane transporters of the PDR subfamily, (ii) transcription factors which control the expression of the transmembrane transporters of the PDR subfamily, and (iii) transmembrane transporters of the MFS family; preferably a polypeptide selected from SNQ2, STE6, PDR3, AQR1, DTR1, FLR1, QDR1, YHK8 and ATR1; and more preferably the SNQ2 transporter. The present invention also relates to a method for producing a phloroglucinol-resistant recombinant host cell. The present invention also relates to a method for producing phloroglucinol.Type: ApplicationFiled: February 5, 2020Publication date: March 31, 2022Inventors: ODILE RAMAEN, VINCENT LAFAQUIERE, DOMINIQUE LOUIS
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Patent number: 11261281Abstract: A block polymer comprising a first block and a second block is provided. The first block contains aromatic ?-mono-olefin units, and the second block contains both 1,3-diene units and mono-olefin units.Type: GrantFiled: October 11, 2018Date of Patent: March 1, 2022Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: François Jean-Baptiste-Dit-Dominique, Vincent Lafaquiere
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Publication number: 20220056175Abstract: A terpolymer of ethylene, of 1,3-butadiene and of an aromatic ?-monoolefin is provided. The terpolymer contains more than 60 mol %, preferably at least 70 mol %, and preferably at most 90 mol % of ethylene units, at most 10 mol % of aromatic ?-monoolefin units and 1,2-cyclohexanediyl units. Such a diene terpolymer rich in ethylene units has the advantage of exhibiting a reduced, or even zero, crystallinity.Type: ApplicationFiled: December 2, 2019Publication date: February 24, 2022Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Emma MORESO, Vincent LAFAQUIERE, Julien THUILLIEZ
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Publication number: 20220055406Abstract: A tire comprises a rubber layer comprising from 50% to 100% by mass of a rubber crumb having a ratio of the chloroform extract to the acetone extract of less than 2, the chloroform and acetone extracts being expressed as percentages by mass.Type: ApplicationFiled: December 13, 2019Publication date: February 24, 2022Inventors: NATHALIE COSTE, SEVERIN DRONET, VINCENT LAFAQUIERE, CLAIRE RANNOUX
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Patent number: 11155656Abstract: 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: GrantFiled: June 6, 2018Date of Patent: October 26, 2021Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Julien Thuilliez, Vincent Lafaquiere, Leyla Pehlivan, Benoît MacQueron, Christophe Boisson, Franck D'Agosto
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Patent number: 11130826Abstract: 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: GrantFiled: November 28, 2017Date of Patent: September 28, 2021Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent Lafaquiere, Julien Thuilliez
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Patent number: 11104755Abstract: 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: GrantFiled: June 6, 2018Date of Patent: August 31, 2021Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Julien Thuilliez, Vincent Lafaquiere, Leyla Pehlivan, Benoît Macqueron, Christophe Boisson, Franck D'Agosto
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Publication number: 20210230325Abstract: 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: ApplicationFiled: May 27, 2019Publication date: July 29, 2021Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: José-Carlos ARAUJO DA SILVA, Vincent LAFAQUIERE, Emma MORESO, Julien THUILLIEZ, Aurélie TRIGUEL
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Publication number: 20210147884Abstract: 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: ApplicationFiled: June 29, 2018Publication date: May 20, 2021Inventors: VINCENT LAFAQUIERE, ODILE RAMAEN, DOMINIQUE LOUIS
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Publication number: 20210079135Abstract: 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: ApplicationFiled: June 6, 2018Publication date: March 18, 2021Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Julien THUILLIEZ, Emma MORESO, Vincent LAFAQUIERE
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Patent number: 10934377Abstract: 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: GrantFiled: July 24, 2017Date of Patent: March 2, 2021Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent Lafaquiere, Julien Thuilliez
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Publication number: 20210054118Abstract: 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: ApplicationFiled: March 18, 2019Publication date: February 25, 2021Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent LAFAQUIERE, Emma MORESO