Patents by Inventor José-Carlos Araujo-Da-Silva

José-Carlos Araujo-Da-Silva 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: 20210317287
    Abstract: A rubber composition which comprises at least 50 phr of a copolymer of ethylene and of a 1,3-diene which contains at least 50 mol % of ethylene units, a carbon black and a vulcanizing system comprising sulfur and a vulcanization accelerator which is a mixture of a primary accelerator and of a secondary accelerator is provided. The mass ratio between the amount of secondary accelerator and the total amount of accelerators is less than 0.7. Such a composition has a good compromise between the cohesion and curing properties.
    Type: Application
    Filed: September 11, 2019
    Publication date: October 14, 2021
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: José-Carlos ARAUJO DA SILVA, Frédéric LEMERLE, Aurélie TRIGUEL
  • Publication number: 20210291590
    Abstract: A tire having improved mechanical properties comprises a rubber composition based on at least one epoxidized polyisoprene having a molar degree of epoxidation ranging from 5% to 85%, at least one thermoplastic polyurethane, and a crosslinking system.
    Type: Application
    Filed: October 7, 2019
    Publication date: September 23, 2021
    Inventors: JOSE-CARLOS ARAUJO DA SILVA, CYRILLE GUERY
  • Publication number: 20210292516
    Abstract: A tire which has improved mechanical properties comprises a rubber composition based on at least one diene elastomer, at least one thermoplastic polyurethane, and a crosslinking system; the composition does not comprise any reinforcing filler or comprises less than 25 parts by weight thereof per hundred parts by weight of elastomer, phr, the carbon black content in the composition being less than 20 phr.
    Type: Application
    Filed: October 7, 2019
    Publication date: September 23, 2021
    Inventors: CYRILLE GUERY, JOSE-CARLOS ARAUJO DA SILVA
  • Patent number: 11090980
    Abstract: Airplane tire tread (2), having an axial width L, comprises a middle part (3) having an axial width LC at least equal to 50% and at most equal to 80% of L and composed of a middle rubber composition, and two lateral parts (41, 42), positioned axially on either side of the middle part (3), each having an axial width (LS1, LS2) between 10% and 25% of L and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first diene elastomer, a reinforcing filler and a crosslinking system, which first diene elastomer comprises ethylene units and diene units comprising a carbon-carbon double bond, which units are distributed randomly within the first diene elastomer, the ethylene units representing at least 50 mol % of all the monomer units of the first diene elastomer.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: August 17, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Emmanuel Joulin, José-Carlos Araujo Da Silva
  • Publication number: 20210230325
    Abstract: A copolymer of ethylene and of isoprene, which comprises from 10 to 35 mol % of isoprene units, at least 70% of which are in the 3,4 configuration and a portion of which is in the 1,2 configuration is provided. A copolymer of this type with a reduced crystallinity is synthesized with a much higher productivity than its homologues of ethylene and of butadiene, and also confers improved curing properties on rubber compositions.
    Type: Application
    Filed: May 27, 2019
    Publication date: July 29, 2021
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: José-Carlos ARAUJO DA SILVA, Vincent LAFAQUIERE, Emma MORESO, Julien THUILLIEZ, Aurélie TRIGUEL
  • Publication number: 20210206203
    Abstract: Materials make it possible to generate mechanical coupling in elastomeric compositions, of use especially for the manufacture of tyre treads. In particular, a tread comprises a composite material based on an elastomeric matrix, a crosslinking system, a reinforcing filler and oriented short fibres.
    Type: Application
    Filed: December 15, 2016
    Publication date: July 8, 2021
    Inventors: JOSE-CARLOS ARAUJO DA SILVA, MASAYUKI MAESAKA, PHILIPPE MANSUY
  • Patent number: 11046116
    Abstract: Airplane tire tread (2), having an axial width L, comprises a middle part (3) having an axial width LC between 50% and 80% of L and composed of a middle rubber composition, and two lateral parts (41, 42), positioned axially on either side of middle part (3), each having an axial width (LS1, LS2) between 10% and 25% of L and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first middle part diene elastomer (“FMPDE”), at most 70 phr of a middle part reinforcing filler (“MPRF”) and a crosslinking system. FMPDE is a terpolymer of ethylene, of an ?-olefin and of a non-conjugated diene. The FLPDE lateral rubber composition of each lateral part comprises at least 50 phr of a first lateral part diene elastomer, a lateral part reinforcing filler content at least equal to the MPRF and a crosslinking system. The FLPDE is a terpolymer of ethylene, of an ?-olefin and of a non-conjugated diene.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: June 29, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Emmanuel Joulin, José-Carlos Araujo Da Silva
  • Patent number: 11046115
    Abstract: An aeroplane tire, and, in particular, the tread thereof. The tread (2), having an axial width L, comprises a middle part (3) having an axial width LC at least equal to 50% and at most equal to 80% of the axial width L of the tread and composed of a middle rubber composition, and two lateral parts (41, 42), positioned axially on either side of the middle part (3), each having an axial width (LS1, LS2) at least equal to 10% and at most equal to 25% of the axial width L of the tread and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first diene elastomer, a reinforcing filler and a crosslinking system, which first diene elastomer is a terpolymer of ethylene, of an ?-olefin and of a non-conjugated diene.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: June 29, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Emmanuel Joulin, José-Carlos Araujo Da Silva
  • Publication number: 20210130593
    Abstract: A tire tread comprising a rubber composition based on at least one highly saturated elastomer, a reinforcing filler and a vulcanization system is provided. The highly saturated diene elastomer contains 1,3-diene units and more than 50 mol % of ethylene units, the vulcanization system comprises a dithiosulfate salt of formula MO3S-S-A-S-SO3M in which the symbol A represents an alkanediyl group or a group comprising two or more alkanediyl units, which units are connected in pairs by means of an oxygen or sulfur atom, of a group of formula —SO2—, —NH—, —NH2+—, —N(C1—C16 alkyl)- or —COO—, or of an arylene or cycloalkylene group and the symbol M represents a metal atom. An improved compromise between the bubbling of the tread at the exit of curing presses and its hysteresis can be achieved.
    Type: Application
    Filed: April 5, 2018
    Publication date: May 6, 2021
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: José-Carlos ARAUJO DA SILVA, Aurélie TRIGUEL
  • Publication number: 20200040170
    Abstract: A rubber composition based at least on an elastomer matrix, on a reinforcing filler and on a vulcanization system is provided. The elastomer matrix comprises a highly saturated elastomer and from 0 to less than 30 phr of natural rubber. The highly saturated diene elastomer contains 1,3-diene units and more than 50 mol % of ethylene units. The vulcanization system comprises a dithiosulfate salt of formula MO3S—S-A-S—SO3M in which the symbol A represents an alkanediyl group or a group comprising two or more alkanediyl units, which units are connected in pairs via an oxygen or sulfur atom, via a group of formula —SO2—, —NH—, —NH2+—, —N(C1-C16 alkyl)- or —COO—, or via an arylene or cycloalkylene group, and the symbol M represents a metal atom. The invention makes it possible to achieve an improved compromise between bubble formation in the rubber composition on exiting from the curing presses and its hysteresis.
    Type: Application
    Filed: April 5, 2018
    Publication date: February 6, 2020
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: José-Carlos ARAUJO DA SILVA, Aurélie TRIGUEL, Aurore CROCHET
  • Publication number: 20190334078
    Abstract: A piezoelectric composite comprises a polymeric matrix and piezoelectric inorganic fillers in the form of particles which are not bound to the polymeric matrix but are dispersed in said polymeric matrix, characterized in that the polymeric matrix comprises a thermoplastic elastomer (TPE), in that the glass transition temperature, Tg, of each thermoplastic block of the thermoplastic elastomer (TPE) is lower than the lowest Curie temperature, Tc, of the piezoelectric inorganic fillers, moreover when the thermoplastic blocks have a melting point, Tm, said melting point of each thermoplastic block is also lower than the lowest Curie temperature of the piezoelectric inorganic fillers, and in that the filler content of the piezoelectric inorganic fillers is at least 5% by volume relative to the total volume of polymeric matrix. There are also a process for preparing such a piezoelectric composite, a device comprising such a composite, the use thereof and a tire comprising such a device.
    Type: Application
    Filed: December 20, 2017
    Publication date: October 31, 2019
    Inventors: JOSÉ-CARLOS ARAUJO DA SILVA, MATHIEU ODDON
  • Publication number: 20190329590
    Abstract: A tire (1) comprises a tread (3), a crown with a crown reinforcement (2), two sidewalls (5), two beads (4), a carcass reinforcement (6) anchored to the two beads (4) and extending from one sidewall (5) to the other, the tread comprising (a) an elastomeric matrix which comprises predominantly one or more thermoplastic elastomers comprising at least one elastomer block and at least one thermoplastic block, and (b) a crosslinking system based on one or more peroxides. The invention also relates to a process for preparing the retire.
    Type: Application
    Filed: November 15, 2017
    Publication date: October 31, 2019
    Inventors: JOSÉ-CARLOS ARAUJO DA SILVA, BENJAMIN GORNARD
  • Publication number: 20190322136
    Abstract: The invention relates to a tyre (1) comprising a tread (3), a crown with a crown reinforcement (2), two sidewalls (5), two beads (4), a carcass reinforcement (6) anchored to the two beads (4) and extending from one sidewall (5) to the other, the tread comprising a) an elastomeric matrix which comprises predominantly by weight one or more thermoplastic elastomers, one or more of these thermoplastic elastomers comprising at least one unsaturated elastomer block and at least one thermoplastic block and b) a crosslinking system based on sulfur or a sulfur donor and one or more vulcanization acclerators. The invention also relates to a process for preparing the tyre.
    Type: Application
    Filed: November 15, 2017
    Publication date: October 24, 2019
    Inventors: JOSÉ-CARLOS ARAUJO DA SILVA, BENJAMIN GORNARD
  • Patent number: 10414132
    Abstract: An elastomeric laminate is provided. The elastomeric laminate comprises a layer A consisting of a diene rubber composition, a layer B comprising a highly unsaturated diene elastomer B, n layers Ci arranged between the layer A and the layer B, n being an integer ?2, i being an integer ranging from 1 to n, the layer C1 being arranged between the layer A and the layer C2, the layer Cn being arranged between the layer B and the layer Cn?1, the layer Ci being arranged between the layer Ci?1 and the layer Ci+1 for values of i ranging from 2 to n?1 when n>2. Such a laminate has good resistance to separation of the layers which constitute it.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: September 17, 2019
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: José-Carlos Araujo Da Silva, Xavier Deparis, Baptiste Foglieni
  • Patent number: 10239971
    Abstract: A heavy-duty vehicle tire comprising a tread consisting of a crosslinked rubber composition comprising a reinforcing filler of siliceous type and a synthetic polyisoprene modified by grafting with a compound comprising at least one group Q, and at least one group A, which are joined to one another by at least one and preferably one “spacer” group Sp, in which: Q comprises a dipole containing at least one and preferably one nitrogen atom, A comprises an associative group comprising at least one nitrogen atom, Sp is an atom or group of atoms forming a bond between Q and A. The heavy-duty vehicle tire according to the invention has a satisfactorily improved rolling resistance/wear resistance compromise.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 26, 2019
    Assignees: COMPAGNIE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A
    Inventors: Perrine Vallat, Etienne Fleury, Jose-Carlos Araujo Da Silva, Jean-Michel Favrot, Anne-Frederique Salit, Nicolas Seeboth
  • Publication number: 20180370289
    Abstract: An aeroplane tire, and, in particular, the tread thereof. The tread (2), having an axial width L, comprises a middle part (3) having an axial width LC at least equal to 50% and at most equal to 80% of the axial width L of the tread and composed of a middle rubber composition, and two lateral parts (41, 42), positioned axially on either side of the middle part (3), each having an axial width (LS1, LS2) at least equal to 10% and at most equal to 25% of the axial width L of the tread and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first diene elastomer, a reinforcing filler and a crosslinking system, which first diene elastomer is a terpolymer of ethylene, of an ?-olefin and of a non-conjugated diene.
    Type: Application
    Filed: November 18, 2016
    Publication date: December 27, 2018
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Emmanuel JOULIN, José-Carlos ARAUJO DA SILVA
  • Publication number: 20180370288
    Abstract: The present invention relates to materials making it possible to generate mechanical coupling in elastomeric compositions, of use especially for the manufacture of tyre treads. It relates in particular to a tread comprising a stack of layers having high and low stiffness moduli.
    Type: Application
    Filed: December 15, 2016
    Publication date: December 27, 2018
    Applicants: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: JOSE-CARLOS ARAUJO DA SILVA, MASAYUKI MAESAKA, PHILIPPE MANSUY
  • Publication number: 20180355152
    Abstract: A process for the manufacture of a tyre, one of the parts of the tyre being based on an elastomeric composition comprising an elastomeric matrix and microcapsules, the elastomeric matrix comprising at least 50 phr of a thermoplastic elastomer, and the microcapsules consisting of a polymeric wall coating one or more active products, comprises a stage of addition of the microcapsules to the elastomeric matrix and then of mixing at a mixing temperature Tmixing at which the microcapsules retain their physical and chemical integrity, it being understood that the microcapsules also retain their physical and chemical integrity at the end of the process for the manufacture of the tyre. The boiling or decomposition point of the active product(s) of the microcapsules are greater by at least 30° C. than the glass transition temperature or, if appropriate, greater by at least 30° C. than the melting point of the thermoplastic block(s) of the thermoplastic elastomer in one such tire made by the process.
    Type: Application
    Filed: December 9, 2016
    Publication date: December 13, 2018
    Inventors: JOSE-CARLOS ARAUJO DA SILVA, GARRY VEGI
  • Publication number: 20180326789
    Abstract: Airplane tire tread (2), having an axial width L, comprises a middle part (3) having an axial width LC at least equal to 50% and at most equal to 80% of L and composed of a middle rubber composition, and two lateral parts (41, 42), positioned axially on either side of the middle part (3), each having an axial width (LS1, LS2) between 10% and 25% of L and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first diene elastomer, a reinforcing filler and a crosslinking system, which first diene elastomer comprises ethylene units and diene units comprising a carbon-carbon double bond, which units are distributed randomly within the first diene elastomer, the ethylene units representing at least 50 mol % of all the monomer units of the first diene elastomer.
    Type: Application
    Filed: November 18, 2016
    Publication date: November 15, 2018
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Emmanuel JOULIN, José-Carlos ARAUJO DA SILVA
  • Publication number: 20180326788
    Abstract: Airplane tire tread (2), having an axial width L, comprises a middle part (3) having an axial width LC between 50% and 80% of L and composed of a middle rubber composition, and two lateral parts (41, 42), positioned axially on either side of middle part (3), each having an axial width (LS1, LS2) between 10% and 25% of L and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first middle part diene elastomer (“FMPDE”), at most 70 phr of a middle part reinforcing filler (“MPRF”) and a crosslinking system. FMPDE is a terpolymer of ethylene, of an ?-olefin and of a non-conjugated diene. The FLPDE lateral rubber composition of each lateral part comprises at least 50 phr of a first lateral part diene elastomer, a lateral part reinforcing filler content at least equal to the MPRF and a crosslinking system. The FLPDE is a terpolymer of ethylene, of an ?-olefin and of a non-conjugated diene.
    Type: Application
    Filed: November 18, 2016
    Publication date: November 15, 2018
    Inventors: Emmanuel JOULIN, José-Carlos ARAUJO DA SILVA