Patents Assigned to Societe de Technologie Michelin
  • Publication number: 20120160339
    Abstract: A self-sealing valve for a tyre includes at least a part formed of a self-sealing material having a dynamic shear modulus G*, measured at 10 Hz, less than or equal to 0.06 MPa, preferably less than or equal to 0.03 MPa, and more preferably still, less than or equal to 0.01 MPa.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 28, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: José MERINO LOPEZ, Michel AHOUANTO, Lucien SILVAIN, Loïc ALBERT
  • Publication number: 20120157585
    Abstract: Rubber composition which can be used in particular for the manufacture of tires, comprising at least a diene elastomer, a reinforcing filler, a crosslinking system, between 0.2 and 10 phr of an antioxidant, such as a substituted para-phenylenediamine, and between 0.2 and 10 phr of an acetylacetonate of an alkali metal or alkaline earth metal, chosen in particular from the group consisting of Li, Na, K, Mg, Ca and the mixtures of such metals. This acetylacetonate compound makes it possible to advantageously reduce the consumption of antioxidant during the thermo-oxidizing ageing of the composition. Metal/rubber composite comprising such a composition and at least a metal reinforcement. Tire comprising a such composition or such a composite.
    Type: Application
    Filed: May 12, 2010
    Publication date: June 21, 2012
    Applicants: Michelin Recherche et Technique S.A., Societe De Technologie Michelin
    Inventors: Kazumi Makiuchi, Salvatore Pagano
  • Publication number: 20120157571
    Abstract: A rubber composition that can be used for the manufacture of tires, based on at least one diene elastomer; one sulphur-based crosslinking system; one inorganic filler as reinforcing filler; one coupling agent of general formula I below: (HO)3-nR1nSi—Z—Sm—R2 wherein in which: R1, which are identical or different, each represent a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 18 carbon atoms; R2 represents a monovalent hydrocarbon-based group chosen from alkyls, which are linear or branched, cycloalkyls or aryls, having from 1 to 30 carbon atoms; Z represents a divalent bonding group comprising from 1 to 18 carbon atoms; n is an integer equal to 0, 1 or 2; and m is a number greater than or equal to 2.
    Type: Application
    Filed: May 20, 2010
    Publication date: June 21, 2012
    Applicants: Michelin Recherche et Technique S.A., Societe De Technologie Michelin
    Inventors: Karine Longchambon, José Carlos Araujo Da Silva, Nocolas Seeboth
  • Publication number: 20120152420
    Abstract: A tire (10) comprising a tread (40) provided with a rolling surface, at least one recess (90) being formed in the tread, which recess opens onto the rolling surface, the recess being delimited by a bottom wall and one single side wall, the tire also comprising at least one appliqué (100; 1001-1002), and the appliqué being inserted into the recess and fixed by means of an adhesive (110) to at least a portion of said bottom or side wall of the recess. The invention also concerns a method and a kit for making a tire more resistant to external aggression.
    Type: Application
    Filed: March 17, 2010
    Publication date: June 21, 2012
    Applicants: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Arnaud Larregain, Olivier Muhlhoff
  • Publication number: 20120158383
    Abstract: In a method for predicting a rolling noise B of a tyre on a pavement, a real profile of the pavement is charted, at least one value of at least one descriptor of the pavement is determined based on the real profile, and use is made of a law for predicting rolling noise B of a tyre. The law is of a type given by B=g(V1, . . . , Vn), where V1, . . . , Vn are values of descriptors D1, . . . , Dn of the pavement, where 1?n?2, where D1 is a characteristic number of indenters of the pavement, and where D2 is a characteristic dimension of the indenters of the pavement.
    Type: Application
    Filed: July 19, 2010
    Publication date: June 21, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventor: Daniel Rochoux
  • Publication number: 20120156400
    Abstract: An inflatable article is provided with a layer impermeable to inflation gases. The layer has an elastomer composition that includes at least, as a predominant elastomer by weight, a thermoplastic styrene (TPS) elastomer and a platy filler. The platy filler has an equivalent diameter (Dv(0.5)) of between 20 and 45 micrometers, and has a shape factor (F) greater than 65.
    Type: Application
    Filed: July 22, 2010
    Publication date: June 21, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Vincent Abad, Emmanuel Custodero, Vincent Lemal
  • Publication number: 20120145334
    Abstract: Method of manufacturing a tire comprising a tread strip in which blind radial cuts are arranged in the blocks of rubber that form the tread pattern, comprising a step during which the cuts (33) are made in the unvulcanized tread strip (3) intended to cap the green tire. One or more blades (22) are raised to a temperature higher than the vulcanization temperature of the material of which the tread strip (3) is made are caused to penetrate the radially internal face (32) of the tread strip (3) for a sufficient period of time that they superficially vulcanize the walls of the cut in contact with the blade (22) so as to prevent the faces from sticking back together once the blade has been withdrawn from the cut.
    Type: Application
    Filed: March 8, 2010
    Publication date: June 14, 2012
    Applicant: SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Patrick Pallot, Gerard Crosnier, Richard Abinal
  • Publication number: 20120149822
    Abstract: An inflatable object is equipped with a layer for sealing in an inflation gas. The layer is formed of an elastomeric composition that includes a predominant elastomer by weight, a block thermoplastic elastomer, and a lamellar filler. The block thermoplastic elastomer includes a polyisobutylene block with a number-average molecular mass ranging from 25,000 to 350,000 g/mol and a glass transition temperature of less than or equal to ?20° C., and, at at least one end of the polyisobutylene block, a thermoplastic block made from at least a polymerized monomer other than a stirene monomer, the polymerized monomer having a glass transition temperature greater than or equal to 100° C. The lamellar filler has an equivalent diameter (Dv (0.5)) of between 15 and 60 micrometers and an aspect ratio (F) of greater than 65.
    Type: Application
    Filed: July 22, 2010
    Publication date: June 14, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Vincent Abad, Emmanuel Custodero, Vincent Lemal
  • Publication number: 20120144910
    Abstract: In a method for predicting at least one physical interaction effect between a tyre and a pavement, a real profile of the pavement is charted, and the real profile is sectioned into several strata each corresponding to an altitude of the real profile. At least one law of variation of at least one pavement descriptor is determined based on the real profile, as a function of the altitude, and an interaction value of each pavement descriptor is determined at an interaction value of the altitude, for each law of variation. A value of a physical interaction effect is predicted based on an interaction value of at least one pavement descriptor.
    Type: Application
    Filed: July 19, 2010
    Publication date: June 14, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventor: Daniel Rochoux
  • Publication number: 20120149818
    Abstract: Reinforced rubber composition, exhibiting improved hysteresis, based on at least (a) an elastomeric matrix predominantly based on natural rubber, (b) a reinforcing filler and (c) a specific polyamine compound present in a proportion of between 0 and 7 mmol per 100 g of elastomer. This rubber composition is intended, for example, for the manufacture of a semi-finished rubber product intended for the tires of motor vehicles.
    Type: Application
    Filed: July 8, 2010
    Publication date: June 14, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: José Carlos Araujo Da Silva, Justin Belz, Stéphanie De Landtsheer, Nathalie Simon
  • Publication number: 20120141696
    Abstract: Elastomer composition comprising at least, as predominant elastomer, a thermoplastic SIBS elastomer comprising a “polyisobutylene” block and, at least one of the ends of the “polyisobutylene” block, a thermoplastic block of specific structure having a Tg greater than or equal to 100° C. The elastomer composition according to the invention may be used as an elastomer layer impermeable to the inflation gases in an inflatable object. This inflatable object is, in particular, an inner tube or a pneumatic tyre for a motor vehicle.
    Type: Application
    Filed: June 1, 2010
    Publication date: June 7, 2012
    Applicant: SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Vincent Abad, Marc Greiveldinger, Julien Thuilliez
  • Publication number: 20120142840
    Abstract: Method of manufacturing granulates or continuous strips intended for feeding an extrusion machine, formed of a gel comprising at least, as majority elastomer, a styrene thermoplastic elastomer and more than 200 phr of an extender oil, each element of the granulate having a given surface area. The granulate element is sized so that the compactness, of a granulate element, is less than a value decreasing from 1500 m?1 to 375 m?1 and deposited on the surface of said granulates is an anti-tack agent having a value increasing from 2 cm3 to 8 cm3 per m2 of granulate surface area, when the mean size of the particles of said anti-tack agent increases from a value of 1 ?m to 100 ?m.
    Type: Application
    Filed: March 8, 2010
    Publication date: June 7, 2012
    Applicant: Societe de Technologie Michelin
    Inventors: Vincent Abad, Jean-Marie Mus
  • Publication number: 20120133115
    Abstract: A two-wheel vehicle for carrying out tire grip measurements. The vehicle is equipped with three spars fitted onto one side of the vehicle, the ends of the spars forming a plane approximately parallel to the circumferential plane of the rear wheel of the vehicle and the distance between said plane and the circumferential plane of the rear wheel of the vehicle being greater than 350 mm.
    Type: Application
    Filed: May 12, 2010
    Publication date: May 31, 2012
    Applicants: Michelin Recherche et Technique S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Jean-Francois Roziere, Claude Martinroche
  • Publication number: 20120135857
    Abstract: The present invention relates to a novel organometallic compound based on a divalent metal belonging to the 2nd column of the Periodic Table that can be used as an alkylating agent in a catalytic system based on a rare-earth metal. This novel compound corresponds to the formula: in which, M is a metal belonging to the 2nd column of the Periodic Table, chosen from Be, Mg, Sr, Ba, and Ra; R1, R2, R3 and R4 are hydrogen atoms or alkyl or aryl substituents, optionally bonded together to form at least one ring or at least one aromatic ring; R and R? denote alkyl or aryl substituents; L is a Lewis base; x is an integer from 0 to 4; m is an integer greater than or equal to 0; and n is an integer greater than or equal to 1.
    Type: Application
    Filed: June 1, 2010
    Publication date: May 31, 2012
    Applicants: SOCIETE DE TECHNOLOGIE MICHELIN, ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Guillaume Cortial, Pascal Le Floch, Françoise Hervagault, Elaine Le Floch, Clémence Le Floch, Paul Le Floch, Francois Nief, Julien Thuilliez
  • Patent number: D661639
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: June 12, 2012
    Assignees: Michelin Recherche et Technique, Societe de Technologie Michelin
    Inventors: Jason Carter, Joseph A. Stain
  • Patent number: D662033
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: June 19, 2012
    Assignees: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventor: Arnaud Larregain
  • Patent number: D662034
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: June 19, 2012
    Assignees: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Mathieu Vandaele, Gaétan Guibard
  • Patent number: D662035
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: June 19, 2012
    Assignees: Societe de Technologie Michelin, Michelin Recherche Et Technique S.A.
    Inventors: Arnaud Delbast, Jean-Marc Meslot
  • Patent number: D662455
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: June 26, 2012
    Assignees: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Patrick Corsi, Jonathan Lejeune
  • Patent number: D662456
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: June 26, 2012
    Assignees: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Patrick Corsi, Jonathan Lejeune