Patents by Inventor Philippe Labrunie

Philippe Labrunie 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: 12240272
    Abstract: A tire comprises an outer strip (2) having a tread (21). The outer strip (2) has a central part and two axially outer parts and comprises at least two rubber compounds (M1, M2) making up at least 90% of the volume of the outer strip (2). The first compound (M1) is radially outside of the second compound (M2), which makes up at least 60% of the axially outer parts and being disposed in a layer that is substantially continuous from one axially outer part to the other, said layer having a minimum thickness at least equal to 0.3 mm. The compound M1 has a modulus G* that is greater than 1.35 times and less than 3 times that of the compound M2. The compound M1 has a dynamic loss at 0° C. greater than 0.5 and the compound M2 has a dynamic loss at 23° C. less than 0.3.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: March 4, 2025
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Miguel Fernandez, Regis Schach, Philippe Labrunie, Karine Longchambon, Alexandre Tobie
  • Patent number: 12240271
    Abstract: A tire comprises an outer strip (2) having a tread (21). The outer strip (2) has a central part and two axially outer parts and comprises at least two rubber compounds (M1, M2) making up at least 90% of the volume of the outer strip (2). The first compound (M1) is radially on the outside of the second compound (M2), which makes up at least 60% of the axially outer parts and being disposed in a layer that is substantially continuous from one axially outer part to the other, said layer having a minimum thickness at least equal to 0.3 mm. The compound M1 has a modulus G* that is greater than 1.35 times and less than 3 times that of the compound M2. The compound M1 has a dynamic loss at 0° C. greater than 0.5 and the compound M2 has a dynamic loss at 23° C. less than 0.3.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: March 4, 2025
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Miguel Fernandez, Karine Longchambon, Regis Schach, Philippe Labrunie, Alexandre Tobie
  • Patent number: 11732117
    Abstract: A rubber composition is based on at least: a diene elastomer; a reinforcing inorganic filler; an agent for coupling the reinforcing inorganic filler with the diene elastomer, said coupling agent being a blocked mercaptosilane of formula (I), as described in the claims; a hydrocarbon-based resin predominantly composed of monomers chosen from the group consisting of cyclopentadiene, dicyclopentadiene, methylcyclopentadiene and mixtures thereof, and a crosslinking system. A semi-finished article and a tire may comprise at least one such rubber composition.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: August 22, 2023
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Philippe Labrunie, Karine Longchambon, Laurent Copey
  • Patent number: 11220591
    Abstract: A rubber composition based on at least: from 50 to 100 phr of one or more diene elastomers, referred to as very low glass transition temperature (Tg) diene elastomers, having a Tg within a range of from ?110° C. to ?70° C., selected from butadiene homopolymers, copolymers of butadiene and of a vinylaromatic monomer, having a content of vinylaromatic units of between 0 and 5% by weight, and mixtures thereof a reinforcing filler a crosslinking system; and from 40 to 150 phr of at least one hydrogenated hydrocarbon resin predominantly composed of units derived from C9 monomers, the resin having a content of aromatic protons of less than 25% and a content of ethylenic protons of less than 1%.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 11, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Benoit De Gaudemaris, Philippe Labrunie
  • Patent number: 10836886
    Abstract: A rubber composition is based on at least one diene elastomer, a reinforcing filler, a vulcanizing system and a plasticizing system, said reinforcing filler predominantly comprising, by weight, a silica with a very high specific surface area, with a CTAB specific surface area greater than 170 m2/g, and said plasticizing system comprising at least more than 15 phr (parts by weight per hundred parts by weight of elastomer) of a hydrocarbon resin having a glass transition temperature (Tg) between ?40° C. and 20° C.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: November 17, 2020
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Philippe Labrunie
  • Patent number: 10160847
    Abstract: A tire, which has an improved grip on wet ground, includes a tread formed of at least a rubber composition. The rubber composition includes: 20 to 100 phr of a first diene elastomer bearing at least one SiOR function, with R being hydrogen or a hydrocarbon radical, and with phr referring to parts by weight per hundred parts of elastomer; 100 to 160 phr of a reinforcing inorganic filler; and a plasticizing system. The plasticizing system includes: a content A of between 5 and 60 phr of a hydrocarbon resin having a Tg above 20° C.; and a content B of between 5 and 60 phr of a liquid plasticizing agent. A total content A+B is greater than 45 phr. The rubber composition optionally includes 0 to 80 phr of a second diene elastomer.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: December 25, 2018
    Assignee: COMPAGNIE GENERALE DES ETABLISSMENTS MICHELIN
    Inventors: Pierre Lesage, Philippe Labrunie, Didier Vasseur, Xavier Saintigny
  • Publication number: 20130296471
    Abstract: A tyre, which has an improved grip on wet ground, includes a tread formed of at least a rubber composition. The rubber composition includes: 20 to 100 phr of a first diene elastomer bearing at least one SiOR function, with R being hydrogen or a hydrocarbon radical, and with phr referring to parts by weight per hundred parts of elastomer; 100 to 160 phr of a reinforcing inorganic filler; and a plasticizing system. The plasticizing system includes: a content A of between 5 and 60 phr of a hydrocarbon resin having a Tg above 20° C.; and a content B of between 5 and 60 phr of a liquid plasticizing agent. A total content A+B is greater than 45 phr. The rubber composition optionally includes 0 to 80 phr of a second diene elastomer.
    Type: Application
    Filed: November 24, 2011
    Publication date: November 7, 2013
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Pierre Lesage, Philippe Labrunie, Didier Vasseur, Xavier Saintigny
  • Publication number: 20130274404
    Abstract: A tyre, which has an improved grip on wet ground, includes a tread formed of at least a rubber composition. The rubber composition includes: from 50 to 100 phr of a copolymer based on styrene and butadiene, e.g., a styrene/butadiene copolymer (SBR), with phr referring to parts by weight per hundred parts of elastomer; from 100 to 150 phr of a reinforcing inorganic filler, e.g., silica; and a plasticizing system. The plasticizing system includes: a content A of between 10 and 60 phr of a thermoplastic hydrocarbon resin exhibiting a Tg of greater than 20° C.; and a content B of between 10 and 60 phr of a liquid plasticizing agent. A total content A+B is greater than 50 phr. Optionally, the rubber composition includes from 0 to 50 phr of another copolymer, e.g., a diene elastomer such as a polybutadiene or natural rubber.
    Type: Application
    Filed: November 24, 2011
    Publication date: October 17, 2013
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Didier Vasseur, Philippe Labrunie, Xavier Saintigny
  • Patent number: 7834074
    Abstract: Plasticizing system usable for the plasticizing of a diene rubber composition. The plasticizing system is based on an MES or TDAE oil and a polylimonene resin. The rubber composition has an improved resistance to abrasion and to cuts, said composition being based on at least a diene elastomer, a reinforcing filler, a cross-linking system and a plasticizing system comprising between 5 and 35 phr of an MES or TDAE oil, and between 5 and 35 phr of a polylimonene resin (phr=parts by weight per hundred of elastomer). Advantageously, this plasticizing system furthermore comprises an unsaturated (C12-C22) fatty acid triester of glycerol, preferably a glycerol trioleate. A process is disclosed for preparing such a composition. The composition can be used for the manufacture of a finished article or a semi-finished product intended for a suspension system of a motor vehicle, in particular a tire or a tread of such a tire.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: November 16, 2010
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Thierry Brunelet, Martine Dinh, Jean-Michel Favrot, Philippe Labrunie, Garance Lopitaux, Jean-Gabriel Royet
  • Publication number: 20080156404
    Abstract: The inventive plasticising system is used for plasticising a dienic rubber compound is characterised in that it is based on a MES or TDAE oil and a polylimonene resin. Said rubber compound exhibits an improved abrasion and cut resistance and is based on at least one type of dienic elastomer, a reinforcing filler, a cross-linking system and a plasticising system comprising from 5 to 35 to 35 pce of the MES or TDAE oil and from 5 to 35 to 35 pce of polylimonene resin (pce=parts by weight percent elastomer). Advantageously, said plasticising system also comprises a glycerol unsaturated fatty acid triester (C12-C22), preferably a glycerol trifoliate. The inventive method for producing said compound, using the compound for producing a final or semi-final product for the gripping system of a motor vehicle with ground, in particular the tire or the thread thereof are also disclosed.
    Type: Application
    Filed: February 10, 2005
    Publication date: July 3, 2008
    Applicant: Michelin Recherche et Technique S.A.
    Inventors: Thierry Brunelet, Martine Dinh, Jean-Michel Favrot, Philippe Labrunie, Garance Lopitaux, Jean-Gabriel Royet