Patents by Inventor Rachid Matmour

Rachid Matmour 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: 11685803
    Abstract: A resin-extended elastomer comprises an elastomer which is a synthetic diene elastomer with a number-average molar mass of greater than or equal to 200,000 g/mol and a resin which is a plasticizing hydrocarbon-based resin. A process for obtaining such a resin-extended elastomer and compositions, semi-finished products for tires and tires containing same are also disclosed.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: June 27, 2023
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Rachid Matmour, Richard Vivier, Vincent Abad
  • Patent number: 11180596
    Abstract: A process for preparing a random copolymer based on at least one acyclic diene monomers and on at least one cyclic diene monomer is provided. The process comprises a step of copolymerization, in the presence of a polar agent and an anionic initiator in a polymerization solvent, of at least one acyclic diene monomer and of at least one cyclic diene monomer of which one C?C double bond is endocyclic and conjugated to an exocyclic C?C double bond, at a polymerization temperature below 80° C. A molar ratio of the polar agent/function(s) of the anionic initiator capable of initiating anionic polymerization being greater than 0.1. Copolymers based on at least one acyclic diene monomer and on at least one cyclic diene monomer and the compositions containing them are also provided.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: November 23, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Rachid Matmour, Robert Ngo, Benoît Schnell
  • Patent number: 10920046
    Abstract: A rubber composition based on a reinforcing filler and on an elastomer comprising units of a 1,3-diene monomer and bearing carbonate functions, each present in a 1,3-dioxolan-2-one ring is provided. The composition has improved reinforcement.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: February 16, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: François Jean-Baptiste-Dit-Dominique, Rachid Matmour, Adeline Jasselin, Benoit Schnell
  • Patent number: 10889676
    Abstract: A method for synthesizing a thermoplastic elastomer comprising at least one polydiene block and at least one other poly(?-methylstyrene) block comprises: polymerizing at least one diene monomer in a starting reaction medium comprising an anionic polymerization initiator and an aprotic non-polar solvent; polymerizing ?-methylstyrene to the living polydiene chain obtained in the preceding step comprising: maintaining the reaction medium containing the living diene elastomer obtained previously and ?-methylstyrene at a positive temperature, below the ceiling temperature for the polymerization of ?-methylstyrene; cooling the reaction medium obtained at the end of step a., to a temperature below 0° C.; simultaneously, successively or prior to the cooling step, adding a purified aprotic polar solvent to the reaction medium with a volume ratio of the polar solvent to the non-polar solvent of less than 1; and propagating the polymerization of ?-methylstyrene to the living polydiene chain.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: January 12, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Rachid Matmour, Robert Ngo
  • Patent number: 10752706
    Abstract: A process for synthesizing a polymer bearing at least one phosphonate group in the polymer chain is provided. The process comprises at least the reaction of a starting polymer bearing at least one nucleophilic function in the polymer chain with at least one electrophilic compound bearing both a phosphonate group and an electrophilic function. The electrophilic function is selected from the halide function, the acyl halide function, the ester function, the carboxylic acid function and the isocyanate function.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: August 25, 2020
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Rachid Matmour, Camille Chatard, Cédric Loubat
  • Publication number: 20200157269
    Abstract: A resin-extended elastomer comprises an elastomer which is a synthetic diene elastomer with a number-average molar mass of greater than or equal to 200,000 g/mol and a resin which is a plasticizing hydrocarbon-based resin. A process for obtaining such a resin-extended elastomer and compositions, semi-finished products for tires and tires containing same are also disclosed.
    Type: Application
    Filed: July 26, 2018
    Publication date: May 21, 2020
    Inventors: RACHID MATMOUR, RICHARD VIVIER, VINCENT ABAD
  • Publication number: 20200131292
    Abstract: A process for preparing a random copolymer based on at least one acyclic diene monomers and on at least one cyclic diene monomer is provided. The process comprises a step of copolymerization, in the presence of a polar agent and an anionic initiator in a polymerization solvent, of at least one acyclic diene monomer and of at least one cyclic diene monomer of which one C?C double bond is endocyclic and conjugated to an exocyclic C?C double bond, at a polymerization temperature below 80° C. A molar ratio of the polar agent/function(s) of the anionic initiator capable of initiating anionic polymrization being greater than 0.1. Copolymers based on at least one acyclic diene monomer and on at least one cyclic diene monomer and the compositions containing them are also provided.
    Type: Application
    Filed: June 28, 2018
    Publication date: April 30, 2020
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Rachid MATMOUR, Robert NGO, Benoît SCHNELL
  • Patent number: 10487182
    Abstract: A process for the synthesis of a diene copolymer comprising at least two blocks, at least one of the blocks being composed of a diene elastomer, characterized in that it comprises a stage of 1,3-dipolar reaction of two polymers defined as being: a) a diene elastomer bearing an alkyne functional group at one or each of its chain ends, and b) a polymer bearing at least one azide functional group. This process of synthesis can be adjusted, whatever the nature of the monomers necessary to form each of the blocks of the copolymer. Each block can be synthesized with an appropriate chemistry, independently of the other block.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: November 26, 2019
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.
    Inventors: Rachid Matmour, Nicolas Seeboth
  • Publication number: 20190276648
    Abstract: A rubber composition based on a reinforcing filler and on an elastomer comprising units of a 1,3-diene monomer and bearing carbonate functions, each present in a 1,3-dioxolan-2-one ring is provided. The composition has improved reinforcement.
    Type: Application
    Filed: July 17, 2017
    Publication date: September 12, 2019
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: François JEAN-BAPTISTE-DIT-DOMINIQUE, Rachid MATMOUR, Adeline JASSELIN, Benoit SCHNELL
  • Patent number: 10315463
    Abstract: The invention relates to a process for the synthesis of a polymer bearing one or more pendant hydroxyaryl groups, comprising the reaction of a polymer bearing at least one epoxide functional group with a nucleophilic compound simultaneously bearing the hydroxyaryl group and a nucleophilic functional group selected from the group consisting of the phosphonic acid functional group and its ionic form.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: June 11, 2019
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.
    Inventors: Claire Rannoux, Rachid Matmour, Cédric Loubat, Camille Chatard
  • Publication number: 20190077900
    Abstract: A method for synthesizing a thermoplastic elastomer comprising at least one polydiene block and at least one other poly(?-methylstyrene) block comprises: polymerizing at least one diene monomer in a starting reaction medium comprising an anionic polymerization initiator and an aprotic non-polar solvent; polymerizing ?-methylstyrene to the living polydiene chain obtained in the preceding step comprising: maintaining the reaction medium containing the living diene elastomer obtained previously and ?-methylstyrene at a positive temperature, below the ceiling temperature for the polymerization of ?-methylstyrene; cooling the reaction medium obtained at the end of step a., to a temperature below 0° C.; simultaneously, successively or prior to the cooling step, adding a purified aprotic polar solvent to the reaction medium with a volume ratio of the polar solvent to the non-polar solvent of less than 1; and propagating the polymerization of ?-methylstyrene to the living polydiene chain.
    Type: Application
    Filed: December 8, 2016
    Publication date: March 14, 2019
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Rachid MATMOUR, Robert NGO
  • Publication number: 20190031789
    Abstract: A process for synthesizing a polymer bearing at least one phosphonate group in the polymer chain is provided. The process comprises at least the reaction of a starting polymer bearing at least one nucleophilic function in the polymer chain with at least one electrophilic compound bearing both a phosphonate group and an electrophilic function. The electrophilic function is selected from the halide function, the acyl halide function, the ester function, the carboxylic acid function and the isocyanate function.
    Type: Application
    Filed: December 5, 2016
    Publication date: January 31, 2019
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Rachid MATMOUR, Camille CHATARD, Cédric LOUBAT
  • Patent number: 10179827
    Abstract: A method for synthesizing a modified polymer comprising epoxide groups along the polymer chain, by a hydrosilylation reaction of the unsaturations with a hydrosilane bearing an epoxide function in the presence of a suitable catalyst is provided. The method is simple, reproducible and able to be used on an industrial scale, and makes it possible to obtain high grafting yields, since they may reach 100%.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: January 15, 2019
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.
    Inventor: Rachid Matmour
  • Publication number: 20180304684
    Abstract: The invention relates to a process for the synthesis of a polymer bearing one or more pendant hydroxyaryl groups, comprising the reaction of a polymer bearing at least one epoxide functional group with a nucleophilic compound simultaneously bearing the hydroxyaryl group and a nucleophilic functional group selected from the group consisting of the phosphonic acid functional group and its ionic form.
    Type: Application
    Filed: October 22, 2015
    Publication date: October 25, 2018
    Inventors: Claire RANNOUX, Rachid MATMOUR, Cédric LOUBAT, Camille CHATARD
  • Publication number: 20180105630
    Abstract: A process for synthesizing a copolymer bearing imidazole pendant groups is provided. The process comprises the radical copolymerization of a monomer mixture comprising a terminal olefin and a functional monomer bearing a (meth)acryloyl group and an imidazole group.
    Type: Application
    Filed: March 23, 2016
    Publication date: April 19, 2018
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Claire RANNOUX, Rachid MATMOUR, Cédric LOUBAT
  • Publication number: 20170335024
    Abstract: Compositions comprising phosphonate-functionalized polyene copolymers and a reinforcing filler, in particular rubber compositions, and to their uses is provided. This phosphonate-functionalized polyene copolymer comprises, in its main linear chain, unsaturated units resulting from at least one conjugated polyene monomer and units substituted by a —C(O)O-A-P(O)OR1OR2 functional group, in which R1 and R2, which are identical or different, each represent H or a C1-C6 alkyl and A represents a (C1-C6)alkylene radical or a (C1-C5)alkylene radical containing at least one heteroatom. The use of this copolymer in a tire composition additionally comprising a diene elastomer and a reinforcing filler, for improving the interactions between the filler and the diene elastomer included in the said tire composition is also provided.
    Type: Application
    Filed: November 17, 2015
    Publication date: November 23, 2017
    Inventors: Claire RANNOUX, Rachid MATMOUR, Anne-Frédérique SALIT, Cédric LOUBAT, Gilles BOUTEVIN
  • Publication number: 20170313789
    Abstract: The invention relates to a process for the synthesis of a polymer bearing one or more pendant hydroxyaryl groups comprising the reaction of a polymer bearing one or more pendant epoxide functional groups with a nucleophilic compound bearing the hydroxyaryl group.
    Type: Application
    Filed: October 22, 2015
    Publication date: November 2, 2017
    Inventors: Claire RANNOUX, Rachid MATMOUR, Cédric LOUBAT, Gilles BOUTEVIN
  • Publication number: 20170218099
    Abstract: The invention relates to a novel polyphosphorus-based chain-end thiol-functionalized polymer, the polymer chain of which comprises units bearing at least one pendant phosphonate function and/or at least one pendant phosphonic function along the chain. This novel polymer is quite particularly suited to participating in a thiol-ene coupling reaction, which affords the possibility of grafting the polyphosphorus-based polymers onto diene polymers, for example.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 3, 2017
    Inventors: Charlotte Dire, Rachid Matmour, Issam Blidi, Olivier Coutelier, Mathias Destarac
  • Publication number: 20170158849
    Abstract: A rubber composition based on a reinforcing filler, an elastomer matrix that is reactive with respect to the crosslinking system, wherein the elastomer matrix comprises an elastomer A comprising monomer units of a first methacrylic acid ester which represent at least 20 mol % of the monomer units of the elastomer A, and a crosslinking system is provided. The rubber composition makes it possible to improve the wet grip of tires whose tread consists of the rubber composition.
    Type: Application
    Filed: June 25, 2015
    Publication date: June 8, 2017
    Inventors: Nathalie COSTE, Régis SCHACH, Rachid MATMOUR
  • Publication number: 20170022296
    Abstract: The invention relates to a method for the synthesis of a novel diene polymer with a high content of phosphorus-based functions by radical grafting of a polyphosphorus-based polymer bearing a chain-end thiol function onto a diene polymer according to the following steps: a) bringing together, with stirring, at least one diene polymer in solution and at least one polyphosphorus-based polymer bearing a chain-end thiol function in solution, b) heating the homogeneous reaction mixture obtained in the previous step to the grafting reaction temperature, and c) adding the radical initiator concomitantly with either of steps a) and b) or once the grafting reaction temperature has been reached.
    Type: Application
    Filed: February 10, 2015
    Publication date: January 26, 2017
    Applicants: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Charlotte DIRE, Rachid MATMOUR, Issam BLIDI, Olivier COUTELIER, Mathias DESTARAC