Patents by Inventor Pierre Lesage

Pierre Lesage 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).

  • Publication number: 20190233315
    Abstract: Disclosed is a method and a facility for treating Produced Water stream from a production well of an oil and gas field, the method and facility including: obtaining a first stream by directing the Produced Water stream to a system of separation by physical way; oxidizing the first stream by introducing in the stream an oxidant by contacting the Produced Water stream with an oxidant; and directing the oxidized stream to an aerobic bioreactor, to achieve a biological treatment.
    Type: Application
    Filed: October 10, 2017
    Publication date: August 1, 2019
    Inventors: Bertrand SEGUES, Audrey BRETON, Nicolas LESAGE, Pierre PEDENAUD, Patrick BALDONI-AUDREY, Sylvie BAIG, Cathy FUCHS, Craig WALLIS
  • 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: 20180223083
    Abstract: A rubber composition is based on at least one diene elastomer with a glass transition temperature (Tg) of less than ?40° C., one reinforcing filler at a content from 60 to 110 parts by weight per hundred parts by weight of elastomer (phr), one vulcanization system and one combination of plasticizers, the said combination of plasticizers comprising more than 10 phr of at least one hydrocarbon resin with a glass transition temperature (Tg) of between ?40° C. and 20° C. and at least one supplementary plasticizer selected from plasticizing oils, hydrocarbon resins with a Tg of greater than 20° C. and their mixtures, the total content of plasticizer being within a range extending from 25 to 65 phr, the contents of reinforcing filler and of plasticizer being such that the ratio of the total content of filler to the total content of plasticizer is within a range extending from 1.8 to 2.5.
    Type: Application
    Filed: July 7, 2016
    Publication date: August 9, 2018
    Inventors: PIERRE LESAGE, FABIEN HELLOT
  • Publication number: 20180223082
    Abstract: A rubber composition is based on at least one diene elastomer with a glass transition temperature (Tg) of less than ?40° C., one reinforcing filler at a content from 50 to 70 parts by weight per hundred parts by weight of elastomer (phr), one vulcanization system and one combination of plasticizers, the said combination of plasticizers comprising more than 10 phr of at least one hydrocarbon resin with a glass transition temperature (Tg) of between ?40° C. and 20° C. and at least one supplementary plasticizer selected from plasticizing oils, hydrocarbon resins with a Tg of greater than 20° C. and their mixtures, the total content of plasticizer being within a range extending from 15 to 35 phr, the contents of reinforcing filler and of plasticizer being such that the ratio of the total content of filler to the total content of plasticizer is within a range extending from 2 to 3.4.
    Type: Application
    Filed: July 7, 2016
    Publication date: August 9, 2018
    Inventors: PIERRE LESAGE, FABIEN HELLOT
  • Publication number: 20180207982
    Abstract: Inflatable article equipped with a layer impermeable to the inflation gases, of improved hysteresis and impermeability. The layer comprises an elastomer composition comprising at least, as the sole elastomer or as the predominant elastomer by weight, a thermoplastic styrene elastomer (“TPS”) and a platy filler having a volume content greater than 5%. According to one preferred embodiment, the TPS elastomer is a copolymer with polystyrene and polyisobutylene blocks such as SIBS (styrene/isobutylene/styrene) and the composition also comprises an extender oil for the elastomer, in particular a PIB (polyisobutylene) oil. The platy filler is especially chosen from graphites and phyllosilicates such as micas, clays or talcs. The inflatable article can be an inner tube or a pneumatic tire for a motor vehicle.
    Type: Application
    Filed: March 23, 2018
    Publication date: July 26, 2018
    Inventors: Pierre LESAGE, Emmanuel CUSTODERO
  • Patent number: 9505273
    Abstract: The invention relates to a studded tire the tread of which comprises a first part in contact with the ground and a second part placed radially to the inside of the first part, and at least one stud protruding from the tread, and the head of the stud being entirely anchored in the second part of the tread, in which the complex modulus G*(0° C.) of the rubber composition forming the first part of the tread is less than 1.5 MPa and in which the complex modulus G* of the rubber composition forming the second part of the tread varies with temperature such that G*(5° C.) is equal to or greater than 5 MPa and G*(20° C.) is less than or equal to 0.5 G*(5° C.).
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: November 29, 2016
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Daniel Fabing, Illyes Batnini, Pierre Lesage, Beatrice Lopez
  • Patent number: 9475344
    Abstract: Inflatable article equipped with an elastomer layer impermeable to the inflation gases, said elastomer layer comprising at least, as the predominant elastomer, a thermoplastic stirene/isobutylene/stirene (SIBS) elastomer. Preferably the SIBS elastomer comprises between 5% and 50% by weight of stirene, its number-average molecular weight is between 30 000 and 500 000 g/mol, and its Tg is below ?20° C. Preferably the airtight elastomer layer also comprises, as a plasticizing agent, an extender oil for the SIBS elastomer with a content preferably between 5 and 100 phr. The inflatable article is, in particular, an inner tube or a pneumatic tire for a motor vehicle.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: October 25, 2016
    Assignees: Micheliin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSMENTS MICHELIN
    Inventors: Pierre Lesage, Emmanuel Custodero
  • Patent number: 9108466
    Abstract: Inflatable article equipped with an elastomer layer impermeable to inflation gases, said elastomer layer comprising at least, as the predominant elastomer, a thermoplastic SIBS elastomer comprising a polyisobutylene block comprising an amount of units derived from one or more conjugated dienes ranging from 0.5% to 6% by weight relative to the weight of the polyisobutylene block, and, at least one of the ends of the polyisobutylene block, a styrenic block representing at most 16% by weight of the total weight of the block copolymer. Preferably the airtight elastomer layer also comprises, as a plasticizing agent, an extender oil for the SIBS elastomer. The inflatable article of the invention is, in particular, an inner tube or a pneumatic tire for a motor vehicle.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: August 18, 2015
    Assignees: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ESTABLISSEMENTS MICHELIN
    Inventors: Pierre Lesage, Emmanuel Custodero, Julien Thuilliez, Marc Greiveldinger
  • Patent number: 8999513
    Abstract: Airtight and puncture-resistant multilayer elastomer laminate that can be used in particular in an inflatable article, such as a pneumatic tire for a vehicle, comprising at least the following three layers (phr signifying parts by weight per hundred parts of rubber (elastomer) in each composition considered): as an airtight first layer, a first elastomer composition comprising at least 50 phr of a diene elastomer; as a puncture-resistant second layer, a self-sealing second elastomer composition comprising at least 50 phr of a saturated thermoplastic styrene elastomer and more than 200 phr of an extender oil; as an adhesive third layer or interphase between the above two layers, a third composition comprising at least 30 phr of an unsaturated thermoplastic styrene elastomer.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: April 7, 2015
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Emmanuel Custodero, Pierre Lesage, Vincent Abad
  • Publication number: 20140338806
    Abstract: The invention relates to a studded tire the tread of which comprises a first part in contact with the ground and a second part placed radially to the inside of the first part, and at least one stud protruding from the tread, and the head of the stud being entirely anchored in the second part of the tread, in which the complex modulus G*(0° C.) of the rubber composition forming the first part of the tread is less than 1.5 MPa and in which the complex modulus G* of the rubber composition forming the second part of the tread varies with temperature such that G*(5° C.) is equal to or greater than 5 MPa and G*(20° C.) is less than or equal to 0.5G*(5° C.).
    Type: Application
    Filed: November 13, 2012
    Publication date: November 20, 2014
    Applicants: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.
    Inventors: Daniel Fabing, Illyes Batnini, Pierre Lesage, Beatrice Lopez
  • Patent number: 8871852
    Abstract: Self-sealing elastomer composition that can in particular be used as puncture-resistant layer in an inflatable article, comprising at least 30 phr of a saturated thermoplastic styrene elastomer, at most 70 phr of an unsaturated thermoplastic styrene elastomer and more than 200 phr of an oil extender. Inflatable article, such as a tire, provided with a puncture-resistant layer comprising, as self-sealing composition, an elastomer composition according to the invention. Advantageously, the puncture-resistant layer is combined with an airtight layer, for example based on butyl rubber, so as to constitute, in the inflatable article, a puncture-resistant airtight laminate.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: October 28, 2014
    Assignees: Michelin Recherche et Techniques S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Pierre Lesage, Vincent Abad
  • Publication number: 20140243448
    Abstract: A tire having an improved wet grip, in particular for a passenger vehicle, a van, or two-wheel vehicle, includes a tread of which includes a rubber composition. The rubber composition includes at least (phr meaning parts by weight per hundred parts of elastomer): as a first diene elastomer, from 55 to 95 phr of natural rubber or synthetic polyisoprene; as a second diene elastomer, from 5 to 45 phr of a polybutadiene or butadiene copolymer having a Tg greater than ?70° C.; as a reinforcing filler, from 60 to 90 phr of an inorganic filler; as a plasticizer, more than 5 phr of a thermoplastic hydrocarbon resin exhibiting a Tg greater than 20° C.; and optionally, from 0 to 20 phr of a plasticizing agent, which is a liquid at 23° C.
    Type: Application
    Filed: September 26, 2012
    Publication date: August 28, 2014
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Pierre Lesage, Garance Lopitaux, Didier Vasseur
  • Publication number: 20140230985
    Abstract: Inner tube for a pneumatic tyre, notably for a bicycle, characterized in that it has an elastomeric gastight layer consisting of an elastomeric composition comprising at least one styrene/isobutylene/styrene thermoplastic elastomer (called “SIBS”) and in that it includes a self-sealing material disposed inside the cavity formed by the airtight elastomeric layer.
    Type: Application
    Filed: April 29, 2014
    Publication date: August 21, 2014
    Applicants: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.
    Inventors: JOSE MERINO LOPEZ, PIERRE LESAGE, FREDERIC PIALOT, MICHEL AHOUANTO
  • Publication number: 20140235751
    Abstract: A tire having an improved wet grip, in particular for a passenger vehicle, a van, or a two-wheel vehicle, includes a tread formed of a rubber composition. The rubber composition includes at least (phr meaning parts by weight per hundred parts of elastomer): as a first diene elastomer, from 55 to 95 phr of natural rubber or synthetic polyisoprene; as a second diene elastomer, from 5 to 45 phr of a polybutadiene or butadiene copolymer having a glass transition temperature (Tg) which is greater than ?70° C.; as a reinforcing filler, more than 90 phr and less than 150 phr of an inorganic filler; and as a plasticizer, more than 10 phr of a thermoplastic hydrocarbon resin exhibiting a glass transition temperature (Tg) greater than 20° C.
    Type: Application
    Filed: September 26, 2012
    Publication date: August 21, 2014
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Pierre Lesage, Garance Lopitaux, Didier Vasseur
  • Patent number: 8679608
    Abstract: A multilayer elastomer laminate that is impermeable to inflation gases, which is capable of adhering to a diene elastomer composition and which can be used in an inflatable article provided with such a diene composition, said laminate comprising at least two superposed elastomer layers (phr signifying parts by weight per hundred parts of elastomer, in each elastomer composition considered): as a gastight first layer, a first elastomer composition comprising more than 50 phr of a copolymer containing polystyrene and polyisobutylene blocks; as an adhesive second layer, a second elastomer composition comprising more than 50 phr of an unsaturated thermoplastic styrene copolymer and optionally a liquid plasticizing agent at a content from 0 to less than 100 phr. This multilayer laminate possesses very good impermeability properties and a reduced hysteresis compared to layers based on butyl rubber, and also a high adhesion to a diene elastomer third layer.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: March 25, 2014
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Pierre Lesage, Vincent Abad, Emmanuel Custodero
  • Patent number: 8646500
    Abstract: A puncture-resistant multilayer laminate that is impermeable to inflation gases, comprising: a gastight first elastomer layer comprising a polystyrene/polyisobutylene block copolymer thermoplastic elastomer, and optionally an extender oil with a content within a range of 0 to less than 100 phr; and a self-sealing second elastomer layer comprising a thermoplastic styrene elastomer, identical to or different from the first elastomer, and an extender oil with a content greater than 200 phr.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: February 11, 2014
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Emmanuel Custodero, Pierre Lesage, José Merino Lopez
  • Patent number: 8609758
    Abstract: An inflatable article such as a pneumatic tire provided with a puncture-resistant layer comprising, by way of a self-sealing composition, an elastomer composition comprising at least, as predominant elastomer, a thermoplastic styrene (TPS) elastomer, more than 200 phr of an extender oil and more than 20 phr of a hydrocarbon resin, the glass transition temperature of which is greater than 0° C. The puncture-resistant layer is advantageously combined with an airtight layer, for example based on butyl rubber, so as to form, in the pneumatic article, an airtight puncture-resistant laminate.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: December 17, 2013
    Assignees: Michelin Recherche et Technique S.A., Compagnie General des Etablissments Michelin
    Inventors: José Merino-Lopez, Pierre Lesage, Bozena Voge
  • Patent number: 8602075
    Abstract: A self-sealing elastomer composition, in an inflatable article such as a pneumatic tire (1), such composition comprising, as predominant elastomer, a thermoplastic styrene (TPS) elastomer and an extender oil with a content of between 200 and 700 phe (parts per hundred parts of elastomer by weight). An airtight puncture-resistant laminate (10) that can be used in particular in said inflatable article (1), comprises a puncture-resistant first layer (10a) comprising said self-sealing composition and an airtight second layer (10b), for example based on butyl rubber. An inflatable article comprises such a self-sealing composition or such an airtight puncture-resistant laminate.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: December 10, 2013
    Assignee: Michelin Recherche et Technique S.A
    Inventors: Loïc Albert, Emmanuel Custodero, Pierre Lesage, José Merino Lopez, Lucien Silvain
  • 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
  • Patent number: 8573271
    Abstract: Tubeless tire in the form of a torus open radially inwards with an outer wall and an inner wall, characterized in that at least part of the inner wall is covered with a self-sealing layer comprising a thermoplastic styrene (TPS) elastomer having a Shore 0 hardness of less than 35.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: November 5, 2013
    Assignees: Compagnie Generale des Etablisements Michelin, Michelin Recherche et Technique, S.A.
    Inventors: José´ Merino Lopez, Michel Ahouanto, Pierre Lesage, Frédéric Pialot