Patents by Inventor Nicolas Dufaure

Nicolas Dufaure 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: 12158239
    Abstract: Multilayer structure for transporting hydrogen, including, from the inside, at least one sealing layer and at least one composite reinforcing layer, an innermost composite reinforcing layer being wound around an outermost adjacent sealing layer, the sealing layers of a composition predominantly of at least one semi-crystalline, long-chain polyamide thermoplastic polymer P1i (i=1 to n, n being the number of sealing layers), the Tf of which, as measured according to ISO 11357-3: 2013, is greater than 160° C., with the exception of one polyether block amide (PEBA), up to 50% by weight of impact modifier relative to the total weight of the composition and up to 1.5% by weight of plasticiser relative to the total weight of the composition, the composition being free of nucleating agent, and at least one of the composite reinforcing layers being of a fibrous material.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: December 3, 2024
    Assignee: ARKEMA FRANCE
    Inventors: Nicolas Dufaure, Patrick Dang, Antoine Goupil
  • Patent number: 12072062
    Abstract: A multilayer structure for transporting, distributing and storing hydrogen including, from the inside to the outside, a sealing layer and at least one composite reinforcement layer, the sealing layer including from the inside to the outside: a layer of a composition including: a short-chain polyamide thermoplastic polymer, more than 15% and up to 50% by weight of impact modifier, or including: a semi-crystalline long-chain polyamide thermoplastic polymer, up to 50% by weight of impact modifier, up to 3% by weight of plasticizer; a hydrogen barrier layer; a layer of a composition including: a short-chain polyamide thermoplastic polymer, more than 15% and up to 50% by weight of impact modifier, or including: a semi-crystalline long-chain polyamide thermoplastic polymer, up to 50% by weight of impact modifier, up to 3% of weight of plasticizer, the innermost composite reinforcement layer being wound around the sealing layer.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: August 27, 2024
    Assignee: ARKEMA FRANCE
    Inventors: Nicolas Dufaure, Patrick Dang, Antoine Goupil
  • Patent number: 11813828
    Abstract: The invention relates to a structure comprising at least one layer (1) comprising a BACT/XT copolyamide in which: —BACT is a unit with an amide moiety having a molar ratio of between 20 and 70%, preferably between 25 and 60%, and more preferably between 35 and 55%, where BAC is chosen from 1,3-bis (aminomethyl) cyclohexyl (1,3 BAC), 1,4-bis (aminomethyl) cyclohexyl (1,4 BAC) and a mixture of same, and T is terephthalic acid, —XT is a unit with an amide moiety having a molar ratio of between 30 and 80%, preferably between 40 and 75%, and more preferably between 45 and 65%, where X is a C9 to C18, preferably C9, C10, C11 and C12, linear aliphatic diamine, and where T is terephthalic acid, preferably a C10, C11 and C12 terephthalic acid.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: November 14, 2023
    Assignee: ARKEMA FRANCE
    Inventors: Mathieu Capelot, Nicolas Dufaure, Thierry Briffaud
  • Patent number: 11708920
    Abstract: A partially annulated flexible tubular structure located at least partially inside the fuel tank, in particular the gasoline or diesel tank, particularly the gasoline tank, of a vehicle, said structure being capable of being at least partially submerged in said tank and being intended for transporting said fuel into said tank, said tubular structure comprising at least one layer (1) comprising a composition comprising: a. between 39% and 100% by weight, in particular between 41% and 100% by weight, of at least one aliphatic polyamide of formula W/Z, b. between 0% and 4% by weight, and preferably between 0 and 2%, of at least one plasticizer, c. between 0% and 20% of at least one impact modifier, d. between 0% and 37% by weight of at least one additive, the sum of a.+b.+c.+d. being equal to 100% of the total weight of the composition, excluding a fuel transport structure running from the tank to the motor of the vehicle.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: July 25, 2023
    Assignee: ARKEMA FRANCE
    Inventors: Emilie Hachet, Thibaut Montanari, Nicolas Dufaure
  • Publication number: 20230151909
    Abstract: The present invention relates to a multilayer tubular structure (MLT) intended for the transport of fluids, in particular of petrol, especially alcohol-containing petrol, comprising, from the outside inwards, at least one barrier layer (1) and at least one inner layer (2) located below the barrier layer, said inner layer (2), or all the layers (2) and the other optional layers located below the barrier layer, containing on average from 0 to 1.5% by weight of plasticizer relative to the total weight of the composition of the layer (2) or to the total weight of all the compositions of the layers (2) and the other optional layers located below the barrier layer, respectively, said inner layer (2) predominantly comprising at least one polyamide of aliphatic type or consisting of more than 75% of aliphatic units, said aliphatic polyamide being chosen from: a polyamide denoted A, having a mean number of carbon atoms per nitrogen atom, denoted CA, of from 4 to 8.
    Type: Application
    Filed: January 18, 2023
    Publication date: May 18, 2023
    Applicant: Arkema France
    Inventors: Thibaut Montanari, Christelle Recoquille, Bertrand Verbauwhede, Nicolas Dufaure, Florent Dechamps
  • Patent number: 11598452
    Abstract: The present invention relates to a multilayer tubular structure (MLT) intended for the transport of fluids, in particular of petrol, especially alcohol-containing petrol, comprising, from the outside inwards, at least one barrier layer (1) and at least one inner layer (2) located below the barrier layer, said inner layer (2), or all the layers (2) and the other optional layers located below the barrier layer, containing on average from 0 to 1.5% by weight of plasticizer relative to the total weight of the composition of the layer (2) or to the total weight of all the compositions of the layers (2) and the other optional layers located below the barrier layer, respectively, said inner layer (2) predominantly comprising at least one polyamide of aliphatic type or consisting of more than 75% of aliphatic units, said aliphatic polyamide being chosen from: a polyamide denoted A, having a mean number of carbon atoms per nitrogen atom, denoted CA, of from 4 to 8.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: March 7, 2023
    Assignee: Arkema France
    Inventors: Thibaut Montanari, Christelle Recoquille, Bertrand Verbauwhede, Nicolas Dufaure, Florent Dechamps
  • Patent number: 11485105
    Abstract: A tubular structure for transporting heat transfer fluid including at least: i) a layer (1) in contact with the fluid including at least one thermoplastic polymer P1 that is semicrystalline with Tm1 greater than or equal to 160° C., as determined according to the standard 1 1357-3 (2013) or amorphous with Tg1 greater than or equal to 100° C., as determined according to the standard 1 1357-2 (2013), said layer (1) containing no fibers, ii) a layer (2) including at least: (a) a thermoplastic polymer P2 that is semicrystalline, in particular a polyamide with Tm2 greater than or equal to 170° C. or amorphous with Tg2 greater than or equal to 100° C., or a polyolefin with Tm greater than 100° C.; (b) optional continuous fibers, the polymer P2 being identical to P1 or different from P1 in which case the polymers P1 and P2 adhere at least partially to one another.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: November 1, 2022
    Assignee: ARKEMA FRANCE
    Inventors: Benoit Brule, Nicolas Dufaure, Estelle Meurice Pierrat
  • Patent number: 11417929
    Abstract: The Invention Relates To A Battery Compartment For An Electric Or Hybrid Vehicle, Characterised In That It Consists Of A Composition Comprising: —20 To 80 Wt % Of Reinforcement Fibres Relative To The Total Weight Of The Composition; —0 To 20 Wt % Of At Least One Impact Modifier Relative To The Total Weight Of The Composition; —0 To 20 Wt % Of Additives Relative To The Total Weight Of The Composition; —The Remainder Being A Matrix Comprising: —Mainly At Least One Polyamide And—At Least One Flame Retardant.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: August 16, 2022
    Assignee: ARKEMA FRANCE
    Inventors: Wissam Rached, Nicolas Dufaure
  • Patent number: 11351762
    Abstract: A barrier structure intended for the storage and/or transport of fluids including at least one barrier layer (1) including an MXDT/XT copolyamide in which: MXDT is an amide unit present in a molar ratio of between 5 and 45%, preferably between 15 and 45%, and more preferably between 20 and 45%, where MXD represents m-xylylenediamine (MXD) and T represents terephthalic acid, XT is a majority amide unit present in a molar ratio of between 55 and 95%, preferably between 55 and 85%, and more preferably between 55 and 80%, where X is a C9 to C18, preferably C9, C10, C11 and C12, linear aliphatic diamine, and where T is terephthalic acid, said copolyamide having a melting point: 250° C.<Tf?300° C. as determined according to standard ISO 1 1357-3 (2013).
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: June 7, 2022
    Assignee: ARKEMA FRANCE
    Inventors: Thierry Briffaud, Mathieu Capelot, Nicolas Dufaure
  • Patent number: 11345131
    Abstract: A barrier structure for the storage and/or transport of fluids, including at least one barrier layer (1) including an MPMDT/XT copolyamide in which: MPMDT is a unit with an amide motif having a molar ratio of between 5 and 50%, particularly between 5 and 45%, preferably between 15 and 45%, more preferably between 20 and 45%, where MPMD is 2-methyl pentamethylene diamine (MPMD) and T is terephthalic acid, XT being a unit with a majority amide motif having a molar ratio of between 50 and 95%, particularly between 55 and 95%, preferably between 55 and 85%, more preferably between 55 and 80%, where X is a C9 to C18, preferably C9, C10, C11 and C12, linear aliphatic diamine, and where T is terephthalic acid, the copolyamide having a melting point of 250° C.<Tf?300° C. as determined according to the ISO norm 1 1357-3 (2013).
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: May 31, 2022
    Assignee: ARKEMA FRANCE
    Inventors: Thierry Briffaud, Mathieu Capelot, Nicolas Dufaure
  • Patent number: 11339899
    Abstract: A multilayer tubular structure (MLT) for transport of alcohol-containing petrol. The MLT from the outside inwards has at least one barrier layer and at least one inner layer located below the barrier layer. The inner layer, or all the layers contain on average at most 1.5% of plasticizer relative to the total weight of the composition of each layer or to the total weight of all the compositions of the layers. The inner layer is predominantly made of at least one polyamide having more than 75% aliphatic units. The aliphatic polyamide has a mean number of carbon atoms per nitrogen atom selected from the following: A: from 4 to 8.5; B: from 7 to 10; C: from 9 to 18; with the proviso that when the inner layer comprises at least three polyamides, at least one of the polyamides A, B and C is excluded.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: May 24, 2022
    Assignee: Arkema France
    Inventors: Thibaut Montanari, Christelle Recoquille, Bertrand Verbauwhede, Nicolas Dufaure, Florent Dechamps
  • Patent number: 11338541
    Abstract: A multilayer tubular structure intended for transporting a heat-transfer fluid, the multilayer tubular structure including: a first layer including at least one long-chain polyamide having between 10 and 15 carbon atoms per nitrogen atom and including at least 50% aliphatic units relative to the sum of the units present in the long-chain polyamide; a second layer including at least one polyamide having between 4 and 9 carbon atoms per nitrogen atom, the polyamide including at least 50% aliphatic units relative to the sum of the units present in the polyamide; an optional layer, the first layer containing no continuous fibres, the second layer being in contact with the transported fluid when an optional layer is not present, and the layer or layers representing at least 50% of the total thickness of the tube.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: May 24, 2022
    Assignee: ARKEMA FRANCE
    Inventors: Thibaut Montanari, Nicolas Dufaure, Marie Georgel
  • Patent number: 10914408
    Abstract: Provided is a method of determining whether a multilayer tubular structure (MLT) satisfies an extractables test by filling the multilayer tubular structure MLT with an alcohol-containing petrol of FAM B type to obtain a filled MLT and measuring the amount of extractable material. The MLT satisfies the extractables test when the residue of the filtrate is less than or equal to 6 g/m2 of the inner surface area of the MLT.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: February 9, 2021
    Assignee: Arkema France
    Inventors: Thibaut Montanari, Christelle Recoquille, Bertrand Verbauwhede, Nicolas Dufaure, Florent Dechamps
  • Publication number: 20200166157
    Abstract: The present invention relates to a multilayer tubular structure (MLT) intended for the transport of fluids, in particular of petrol, especially alcohol-containing petrol, comprising, from the outside inwards, at least one barrier layer (1) and at least one inner layer (2) located below the barrier layer, said inner layer (2), or all the layers (2) and the other optional layers located below the barrier layer, containing on average from 0 to 1.5% by weight of plasticizer relative to the total weight of the composition of the layer (2) or to the total weight of all the compositions of the layers (2) and the other optional layers located below the barrier layer, respectively, said inner layer (2) predominantly comprising at least one polyamide of aliphatic type or consisting of more than 75% of aliphatic units, said aliphatic polyamide being chosen from: a polyamide denoted A, having a mean number of carbon atoms per nitrogen atom, denoted CA, of from 4 to 8.
    Type: Application
    Filed: January 16, 2020
    Publication date: May 28, 2020
    Applicant: Arkema France
    Inventors: Thibaut Montanari, Christelle Recoquille, Bertrand Verbauwhede, Nicolas Dufaure, Florent Dechamps
  • Publication number: 20200116280
    Abstract: Provided is a method of determining whether a multilayer tubular structure (MLT) satisfies an extractables test by filling the multilayer tubular structure MLT with an alcohol-containing petrol of FAM B type to obtain a filled MLT and measuring the amount of extractable material. The MLT satisfies the extractables test when the residue of the filtrate is less than or equal to 6 g/m2 of the inner surface area of the MLT.
    Type: Application
    Filed: December 13, 2019
    Publication date: April 16, 2020
    Applicant: Arkema France
    Inventors: Thibaut Montanari, Christelle Recoquille, Bertrand Verbauwhede, Nicolas Dufaure, Florent Dechamps
  • Publication number: 20200101689
    Abstract: A tubular structure for transporting heat transfer fluid including at least: i) a layer (1) in contact with the fluid including at least one thermoplastic polymer P1 that is semicrystalline with Tm1 greater than or equal to 160° C., as determined according to the standard 1 1357-3 (2013) or amorphous with Tgl greater than or equal to 100° C., as determined according to the standard 1 1357-2 (2013), said layer (1) containing no fibers, ii) a layer (2) including at least: (a) a thermoplastic polymer P2 that is semicrystalline, in particular a polyamide with Tm2 greater than or equal to 170° C. or amorphous with Tg2 greater than or equal to 100° C., or a polyolefin with Tm greater than 100° C.; (b) optional continuous fibers, the polymer P2 being identical to P1 or different from P1 in which case the polymers P1 and P2 adhere at least partially to one another.
    Type: Application
    Filed: October 4, 2019
    Publication date: April 2, 2020
    Inventors: Benoit Brule, Nicolas Dufaure, Estelle Meurice Pierrat
  • Patent number: 10471677
    Abstract: A tubular structure for transporting heat transfer fluid including at least: i) a layer (1) in contact with the fluid including at least one thermoplastic polymer P1 that is semicrystalline with Tm1 greater than or equal to 160° C., as determined according to the standard 1 1357-3 (2013) or amorphous with Tg1 greater than or equal to 100° C., as determined according to the standard 1 1357-2 (2013), said layer (1) containing no fibers, ii) a layer (2) including at least: (a) a thermoplastic polymer P2 that is semicrystalline, in particular a polyamide with Tm2 greater than or equal to 170° C. or amorphous with Tg2 greater than or equal to 100° C., or a polyolefin with Tm greater than 100° C.; (b) continuous fibers, the polymer P2 being identical to P1 or different from P1 in which case the polymers P1 and P2 adhere at least partially to one another.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 12, 2019
    Assignee: ARKEMA FRANCE
    Inventors: Benoît Brule, Nicolas Dufaure, Estelle Meurice Pierrat
  • Patent number: 10400073
    Abstract: The invention concerns a method for the surface crosslinking of a polymer, in particle form, having one or a plurality of labile hydrogen functions, comprising a step of implementing a crosslinking agent comprising at least two functions likely to react with the labile hydrogen functions of the polymer, the crosslinking method being carried out at a temperature lower than the melting point of the polymer. The invention also concerns a powder particle and the uses of same.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: September 3, 2019
    Assignee: Arkema France
    Inventors: Geoffroy Cammage, Nicolas Dufaure, Guillaume Le, Cyrille Mathieu
  • Patent number: 8975363
    Abstract: A shock absorber is prepared from a material formed from branched molecules comprising associative groups. The branched molecules each contains at least bifunctional fragments and at least trifunctional fragments joined together by ester or thioester bridges alone or in combination with amide or urea bridges.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: March 10, 2015
    Assignee: Arkema France
    Inventors: Manuel Hidalgo, Nicolas Dufaure, Jean-Luc Couturier, Bruno Hemelryck
  • Patent number: 8889771
    Abstract: The invention relates to the field of plasticizers, compounds used as additives in polymers for facilitating the transformation thereof or modifying the mechanical properties thereof especially rigidity.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: November 18, 2014
    Assignee: Arkema France
    Inventors: Nicolas Dufaure, Jean-Luc Couturier, Manuel Hidalgo