Patents by Inventor Didier Vasseur

Didier Vasseur 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: 11286369
    Abstract: A tire with improved wear resistance, rolling resistance and cohesion, comprises a rubber composition based on at least one elastomeric matrix comprising predominantly a random copolymer comprising ethylene units and conjugated diene units, the mole fraction of ethylene units in the copolymer being within a range extending from 50% to 95%; a peroxide; and a specific polyfunctional acrylate; the contents of polyfunctional acrylate and of peroxide being such that the ratio of the peroxide content to the polyfunctional acrylate content is greater than or equal to 0.08; said composition comprising from 5 to less than 65 phr of reinforcing filler; the ratio of the filler content to the polyfunctional acrylate content being greater than or equal to 1.25.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: March 29, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Benjamin Gornard, Didier Vasseur, Guillaume Pibre
  • Patent number: 11254804
    Abstract: A tire with improved wear resistance, rolling resistance and cohesion, comprises a rubber composition based on at least one elastomeric matrix comprising predominantly a random copolymer comprising ethylene units and conjugated diene units, the mole fraction of ethylene units in the copolymer being within a range extending from 50% to 95%; a peroxide; and a zinc diacrylate derivative in the form of a specific zinc salt; in which composition the contents of zinc diacrylate derivative and of peroxide being such that the ratio of the peroxide content to the zinc diacrylate derivative content is greater than or equal to 0.08; said composition comprising from 5 to less than 65 phr of reinforcing filler; the ratio of the filler content to the zinc diacrylate derivative content being greater than or equal to 1.25.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: February 22, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Benjamin Gornard, Didier Vasseur
  • Publication number: 20210130578
    Abstract: A tire with improved wear resistance, rolling resistance and cohesion, comprises a rubber composition based on at least one elastomeric matrix comprising predominantly a random copolymer comprising ethylene units and conjugated diene units, the mole fraction of ethylene units in the copolymer being within a range extending from 50% to 95%; a peroxide; and a specific polyfunctional acrylate; the contents of polyfunctional acrylate and of peroxide being such that the ratio of the peroxide content to the polyfunctional acrylate content is greater than or equal to 0.08; said composition comprising from 5 to less than 65 phr of reinforcing filler; the ratio of the filler content to the polyfunctional acrylate content being greater than or equal to 1.25.
    Type: Application
    Filed: March 8, 2018
    Publication date: May 6, 2021
    Inventors: BENJAMIN GORNARD, DIDIER VASSEUR, GUILLAUME PIBRE
  • Patent number: 10773552
    Abstract: A tire tread is based on one or more diene elastomers, on one or more reinforcing fillers, on a crosslinking system, and on at least one compound (A) selected from a metal chelate comprising at least one ligand and at least one metal, a pigment and their mixture.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 15, 2020
    Assignee: Compagnie Generale Des Etablissements Michelin
    Inventors: Xavier Lebrun, Didier Vasseur
  • Publication number: 20200040166
    Abstract: A tire with improved wear resistance, rolling resistance and cohesion, comprises a rubber composition based on at least one elastomeric matrix comprising predominantly a random copolymer comprising ethylene units and conjugated diene units, the mole fraction of ethylene units in the copolymer being within a range extending from 50% to 95%; a peroxide; and a zinc diacrylate derivative in the form of a specific zinc salt; in which composition the contents of zinc diacrylate derivative and of peroxide being such that the ratio of the peroxide content to the zinc diacrylate derivative content is greater than or equal to 0.08; said composition comprising from 5 to less than 65 phr of reinforcing filler; the ratio of the filler content to the zinc diacrylate derivative content being greater than or equal to 1.25.
    Type: Application
    Filed: March 8, 2017
    Publication date: February 6, 2020
    Inventors: BENJAMIN GORNARD, DIDIER VASSEUR
  • Patent number: 10301455
    Abstract: A tire comprises a rubber composition based on at least one diene elastomer, a reinforcing filler, a specific polyfunctional acrylate derivative, silica as predominant reinforcing filler, a guanidine derivative and a peroxide, the contents of polyfunctional acrylate derivative and of peroxide being such that the ratio of the content of polyfunctional acrylate derivative to the content of peroxide is greater than or equal to 6.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: May 28, 2019
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventor: Didier Vasseur
  • Patent number: 10272722
    Abstract: The tire has a carcass reinforcement which has at least one layer and a crown reinforcement that is capped radially by a tread. The tire also includes a layer P of polymer compounds in contact with at least one working crown layer and in contact with the carcass reinforcement. The elastomer compounds forming the calendering layer, radially outermost with respect to the crown of the tire, of the carcass reinforcement layer have a relative density of sulfur bridges of less than 5%. The elastomer compounds forming the layer P have a relative density of sulfur bridges of less than 5%. The elastomer compounds are compositions based on at least one diene elastomer selected from the group of polybutadienes (BRs), synthetic polyisoprenes (IRs), natural rubber (NR), isoprene copolymers, butadiene copolymers with the exception of butadiene-nitrile copolymers (NBRs), apart from diene elastomers bearing carboxyl functions, and mixtures of these diene elastomers.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: April 30, 2019
    Assignee: Compagnie General Des Etablissements Michelin
    Inventors: Jacques Babaud, Didier Vasseur, Delphine Nayrat
  • Patent number: 10246577
    Abstract: A tire is provided with a tread comprising a rubber composition based on at least one diene elastomer, a reinforcing filler, a crosslinking system and a polymethyl methacrylate thermoplastic resin, the polymethyl methacrylate thermoplastic resin exhibiting a Vicat point, measured according to Standard ISO 306: 2013 B50, within a range extending from 60° C. to 100° C.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: April 2, 2019
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Didier Vasseur, Frederic Lemerle
  • Publication number: 20190001748
    Abstract: A tire tread is based on one or more diene elastomers, on one or more reinforcing fillers, on a crosslinking system, and on at least one compound (A) selected from a metal chelate comprising at least one ligand and at least one metal, a pigment and their mixture.
    Type: Application
    Filed: December 21, 2016
    Publication date: January 3, 2019
    Inventors: XAVIER LEBRUN, DIDIER VASSEUR
  • 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: 20180201067
    Abstract: The reinforcing structure for a tire is in the form of a stratified assembly formed of two layers of reinforcing strips of completely connected cross section, and flattened in shape. According to the method, the strips of each layer are laid side by side in a main direction of laying. The strips of the first layer are spaced apart by a distance that is less than the width of the strips of the second layer and in such a way that the edges of the strips of the first layer overlap the edges of the strips of the second layer. The two layers of strips are separated by a layer of uncoupling rubber.
    Type: Application
    Filed: July 6, 2016
    Publication date: July 19, 2018
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Jean-Luc GUERBERT-JUBERT, Luc BESTGEN, Didier VASSEUR, Delphine NAYRAT
  • Publication number: 20180194170
    Abstract: The tire has a radial carcass reinforcement and a crown reinforcement containing at least two working crown layers of reinforcing elements. The working crown layers are covered radially with a tread that is joined to two beads via two sidewalls. The relative density of sulfur bridges measured according to the equilibrium swelling method is less than 5% in at least 30% of the elastomer compounds present in the surface of at least one zone S in a meridian plane. The elastomer compounds are compositions based on at least one diene elastomer selected from the group of diene elastomers consisting of polybutadienes (abbreviated to “BRs”), synthetic polyisoprenes (IRs), natural rubber (NR), isoprene copolymers, butadiene copolymers with the exception of butadiene-nitrile copolymers (NBRs), apart from diene elastomers bearing carboxyl functions, and mixtures of these diene elastomers.
    Type: Application
    Filed: July 6, 2016
    Publication date: July 12, 2018
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Jacques BABAUD, Orel FOURNIER, Didier VASSEUR, Delphine NAYRAT
  • Publication number: 20180194168
    Abstract: The tire has a carcass reinforcement which has at least one layer and a crown reinforcement that is capped radially by a tread. The tire also includes a layer P of polymer compounds in contact with at least one working crown layer and in contact with the carcass reinforcement. The elastomer compounds forming the calendering layer, radially outermost with respect to the crown of the tire, of the carcass reinforcement layer have a relative density of sulfur bridges of less than 5%. The elastomer compounds forming the layer P have a relative density of sulfur bridges of less than 5%. The elastomer compounds are compositions based on at least one diene elastomer selected from the group of polybutadienes (BRs), synthetic polyisoprenes (IRs), natural rubber (NR), isoprene copolymers, butadiene copolymers with the exception of butadiene-nitrile copolymers (NBRs), apart from diene elastomers bearing carboxyl functions, and mixtures of these diene elastomers.
    Type: Application
    Filed: July 6, 2016
    Publication date: July 12, 2018
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Jacques BABAUD, Didier VASSEUR, Delphine NAYRAT
  • Publication number: 20180050566
    Abstract: A tire is provided with an internal layer, said internal layer comprising a rubber composition based on at least one diene elastomer, a zinc diacrylate derivative in the form of a zinc salt wherein R1, R2 and R3 independently represent a hydrogen atom or a C1-C7 hydrocarbon group selected from linear, branched or cyclic alkyl groups, aralkyl groups, alkylaryl groups and aryl groups and optionally interrupted by one or more heteroatoms, it being possible for R2 and R3 to together form a nonaromatic ring, said composition additionally comprising a peroxide. The contents of zinc diacrylate derivative and of peroxide are such that the ratio of the content of peroxide to the content of zinc diacrylate derivative is less than or equal to 0.09, said composition not comprising a reinforcing filler or comprising less than 65 phr thereof, the ratio of the content of filler to the content of zinc diacrylate derivative being less than or equal to 4.
    Type: Application
    Filed: March 3, 2016
    Publication date: February 22, 2018
    Inventors: DIDIER VASSEUR, AURORE CROCHET
  • Publication number: 20180002498
    Abstract: A rubber composition that is based upon a cross-linkable elastomer composition comprising, per 100 parts by weight of rubber (phr) between 70 phr and 100 phr of an epoxidized rubber component selected from an epoxidized polybutadiene rubber (eBR), an epoxidized styrene-butadiene rubber (eSBR), or combinations thereof, wherein the epoxidized rubber component has a Tg of between ?80° C. and ?110° C. and an epoxy-function content of between 1 mol % and 25 mol %; between 30 phr and 150 phr of a plasticizing resin; and a quickly reactive silica that provides a macro dispersion Z-value of at least 50 in a defined rubber composition; and a non-silol coupling agent.
    Type: Application
    Filed: December 28, 2015
    Publication date: January 4, 2018
    Inventors: Jessica MCDOWELL, Christopher PAPPAS, Xavier SAINTIGNY, Didier VASSEUR
  • Publication number: 20170349731
    Abstract: A tire comprises a rubber composition based on at least one diene elastomer, a reinforcing filler, a specific polyfunctional acrylate derivative, silica as predominant reinforcing filler, a guanidine derivative and a peroxide, the contents of polyfunctional acrylate derivative and of peroxide being such that the ratio of the content of polyfunctional acrylate derivative to the content of peroxide is greater than or equal to 6.
    Type: Application
    Filed: December 21, 2015
    Publication date: December 7, 2017
    Inventor: DIDIER VASSEUR
  • Patent number: 9821608
    Abstract: The tire (10B) comprises a tread (12) including a running layer (14) which is intended to come into contact with the ground when the tire (10B) rolls on the ground, and a sublayer (16) located radially inwards from the running layer (14). The tread (12) comprises at least one fluid passage (22) between the sublayer (16) and the air surrounding the tire (10B). The sublayer (16) comprises a cellular material. The fluid passage (22) comprises an element chosen from a groove (20) and a cut (26), formed in the running layer (14) and extended by at least one well (28) acting as a radial extension of the element, formed between the groove (20) and/or the cut (26) and the sublayer (16). Each well (28) forms a localized part of the fluid passage (22).
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: November 21, 2017
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.
    Inventors: Jose Merino Lopez, Didier Vasseur, Olivia Cuscito, Sylvain Petitjean
  • Patent number: 9718309
    Abstract: The invention relates to a tire provided with a tread, said tread comprising a rubber composition based on at least one diene elastomer, a zinc diacrylate derivative in the form of a zinc salt in which R1, R2 and R3 independently represent a hydrogen atom or a C1-C7 hydrocarbon group selected from linear, branched or cyclic alkyl groups, aralkyl groups, alkylaryl groups and aryl groups, which are optionally interrupted by one or more heteroatoms, R2 and R3 being able to form together a non-aromatic ring, and a peroxide. The contents of zinc diacrylate derivative and peroxide are such that the ratio of the peroxide content to the zinc diacrylate derivative content is less than or equal to 0.09, said composition comprising no reinforcing filler or comprising less than 50 phr thereof, the ratio of the filler content to the zinc diacrylate derivative content being less than or equal to 2.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: August 1, 2017
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Didier Vasseur, Aurore Crochet
  • Publication number: 20170210887
    Abstract: A tire is provided with a tread comprising a rubber composition based on at least one diene elastomer, a reinforcing filler, a crosslinking system and a polymethyl methacrylate thermoplastic resin, the polymethyl methacrylate thermoplastic resin exhibiting a Vicat point, measured according to Standard ISO 306: 2013 B50, within a range extending from 60° C. to 100° C.
    Type: Application
    Filed: July 9, 2015
    Publication date: July 27, 2017
    Applicants: COMPAGNIE GENERAL DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.
    Inventors: DIDIER VASSEUR, FREDERIC LEMERLE
  • Patent number: 9662844
    Abstract: Self-sealing elastomer composition that can be used especially as a puncture-resistant layer in an inflatable article, comprising: as predominant elastomer, an unsaturated diene elastomer; between 30 and 90 phr of a hydrocarbon resin; and 0 to less than 30 phr of a filler. Also disclosed is an article such as a tire provided with a puncture-resistant layer comprising the self-sealing elastomer composition. The puncture-resistant layer is advantageously combined with an airtight layer, for example based on butyl rubber, so as to form, in the inflatable article, a puncture-resistant airtight laminate.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: May 30, 2017
    Assignees: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Bozena Voge, Didier Vasseur, Jose Merino Lopez, Frederic Pialot