Patents by Inventor Emmanuel Custodero

Emmanuel Custodero 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: 20120003409
    Abstract: Inflatable article equipped with an elastomer layer impermeable to the inflation gases comprising at least: as first thermoplastic stirene elastomer, at least 50 phr of a copolymer containing polystirene and polyisobutylene blocks, in particular SIBS; as second thermoplastic stirene elastomer, at most 50 phr of a thermoplastic stirene copolymer of unsaturated type, in particular SIS; and optionally an extender oil, in particular polybutene, at a content preferably between 5 and 100 phr. This gastight elastomer layer has very good impermeability properties and a lower hysteresis compared to layers based on butyl rubber. The inflatable article can be, in particular, an inner tube or a pneumatic tire for a motor vehicle.
    Type: Application
    Filed: November 30, 2009
    Publication date: January 5, 2012
    Applicants: Michelin Recherche et Technique S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Pierre Lesage, Vincent Abad, Cécile Barbier, Emmanuel Custodero
  • Publication number: 20120003413
    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 polystirene and polyisobutylene blocks; as an adhesive second layer, a second elastomer composition comprising more than 50 phr of an unsaturated thermoplastic stirene 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: Application
    Filed: November 30, 2009
    Publication date: January 5, 2012
    Inventors: Pierre Lesage, Vincent Abad, Emmanuel Custodero
  • Publication number: 20110315291
    Abstract: An inflatable article provided with an elastomer layer impermeable to the inflation gas, such as air, said layer comprising at least, as major elastomer, a thermoplastic polystirene/polyisobutylene block copolymer, such as an SIBS (stirene/isobutylene/stirene) copolymer, and expanded thermoplastic microspheres with a preferential content between 1 and 30 phr. Preferably, this copolymer comprises between 5% and 50% stirene by weight, its number-average molecular weight is between 30 000 and 500 000 g/mol and its Tg is below ?20° C. Optionally, the gastight elastomer layer also contains, as plasticizer, an extender oil, especially a polybutene oil, with a preferential content between 5 and 100 phr. This gastight layer not only has excellent impermeability properties, but also a density and a hysteresis that are both reduced compared with layers based on butyl rubber. The inflatable article can be a pneumatic tire for a motor vehicle.
    Type: Application
    Filed: November 30, 2009
    Publication date: December 29, 2011
    Applicants: Michelin Recherche et Technique S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Vincent Abad, Pierre Lesage, Emmanuel Custodero
  • Publication number: 20110277901
    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 stirenic 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: Application
    Filed: November 17, 2009
    Publication date: November 17, 2011
    Inventors: Pierre Lesage, Emmanuel Custodero, Julien Thuilliez, Marc Greiveldinger
  • Publication number: 20110180193
    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 stirene 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 stirene elastomer.
    Type: Application
    Filed: June 3, 2009
    Publication date: July 28, 2011
    Applicants: SOCIETE TECHNOLOGIE MICHELIN, Michelin Recherche et Technique S.A.
    Inventors: Emmanuel Custodero, Pierre Lesage, Vincent Abad
  • Publication number: 20110181100
    Abstract: A sealing device forming an annular band intended to be associated with a rim for a wheel designed to accept a tire, the rim having a rim bottom extended by two flanges, the device being adapted to be fitted in such a way as to cover at least the rim bottom. The annular band comprises at least one elastomeric material comprising at least one copolymer thermoplastic elastomer containing blocks of polystirene and polyisobutylene, and a polybutene oil. Also disclosed is a mounted assembly having a wheel comprising a rim associated with a sealing device and of a tubeless tire. In addition, a method is disclosed for fitting a sealing device onto a rim.
    Type: Application
    Filed: July 10, 2009
    Publication date: July 28, 2011
    Applicants: SOCIETE DE TECHNOLOGIE MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Vincent Abad, Patrick Bernadot, Emmanuel Custodero
  • Publication number: 20100294411
    Abstract: A puncture-resistant multilayer laminate that is impermeable to inflation gases, comprising: a gastight first elastomer layer comprising a polystirene/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 stirene elastomer, identical to or different from the first elastomer, and an extender oil with a content greater than 200 phr.
    Type: Application
    Filed: May 20, 2008
    Publication date: November 25, 2010
    Applicants: SOCIETE DE TECHNOLOGIE MICHELIN, Michelin Recherche et Technique S.A.
    Inventors: Emmanuel Custodero, Pierre Lesage, José Merino Lopez
  • Publication number: 20100263778
    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 stirene 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 polystirene and polyisobutylene blocks such as SIBS (stirene/isobutylene/stirene) 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: July 4, 2008
    Publication date: October 21, 2010
    Applicants: Societe De Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Pierre Lesage, Emmanuel Custodero
  • Publication number: 20100264610
    Abstract: A tire for an axle of a private passenger vehicle having two axles. The axle comprises a suspension device for positively controlling the camber of the wheels relative to the ground in the case of transverse acceleration. The tire develops a contact patch on the ground, said contact patch having a length at the left shoulder (Leg), a length at the right shoulder (Led) and a central length (Lc), a contact patch ratio (Rep) being defined by the quotient of the average of the shoulder lengths divided by the central length. The tire contact patch ratio is greater than 0.65.
    Type: Application
    Filed: July 9, 2008
    Publication date: October 21, 2010
    Applicants: SOCIETE DE TECHNOLOGIE MICHELIN, Michelin Recherche et Techique S.A.
    Inventors: Emmanuel Custodero, Jean-Marie Mus
  • Publication number: 20100175804
    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: Application
    Filed: May 20, 2008
    Publication date: July 15, 2010
    Inventors: Pierre Lesage, Emmanuel Custodero
  • Publication number: 20100051158
    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: Application
    Filed: December 19, 2007
    Publication date: March 4, 2010
    Applicant: Michelin Recherche et Technique S.A.
    Inventors: Loïc Albert, Emmanuel Custodero, Pierre Lesage, José Merino Lopez, Lucien Silvain
  • Patent number: 7425313
    Abstract: A reinforcing aluminum-based filler which can be used for reinforcing diene rubber compositions intended for the manufacture of tires, comprising an aluminum (oxide-)hydroxide corresponding, with the exception of any impurities and the water of hydration, to the general formula (a and b being real numbers): Al(OH)aOb, with 0<a?3 and b=(3?a)/2, ??(I) the specific BET surface area of which is between 30 and 400 m2/g, the average particle size (by mass) dw of which is between 20 and 400 nm and the disagglomeration rate, ?, of which, measured via an ultrasound disagglomeration test at 100% power of a 600-watt ultrasonic probe, is greater than 5×10?3 ?m?1/s is provided. A rubber composition suitable for the manufacture of tires comprising said aluminum-based filler as reinforcing filler.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: September 16, 2008
    Assignee: Compagnie Generale des Establissements Michelin - Michelin & Cie
    Inventors: Emmanuel Custodero, Laure Simonot, Jean-Claude Tardivat
  • Patent number: 7256233
    Abstract: A rubber composition usable for the manufacture of tires, based on at least one diene elastomer, one reinforcing inorganic filler and a coupling agent providing the bond between the inorganic filler and the elastomer. The inorganic filler comprises a synthetic aluminosilicate of the formula: MxSiAlyOa(OH)b, (H2O)c??(I) in which: M is a cation selected from of K+, Na+, Ca++ and mixtures of these cations; x>0; y>0; a?0; b?0, c?0 and a+b>0, and having the following characteristics: (a) a BET specific surface area of between 20 and 300 m2/g; (b) an average particle size by mass (dw) of between 20 and 400 nm; and (c) an ultrasound disagglomeration rate (?) greater than 5×10?4 ?m?1/min.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: August 14, 2007
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Laure Simonot, Anne Veyland, Arnaud Lapra, Emmanuel Custodero
  • Patent number: 7202295
    Abstract: A rubber composition usable for the manufacture of tires, based on at least one diene elastomer, a reinforcing inorganic filler and a coupling agent providing the bond between the inorganic filler and the elastomer, wherein said inorganic filler comprises a silicon carbide having the following characteristics: (a) a BET specific surface area of between 20 and 200 m2/g; (b) an average particle size (by mass), dW, of between 10 and 350 nm. Tires or semi-finished products for tires such as treads comprising said rubber composition.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: April 10, 2007
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Laure Simonot, Thierry Chartier, Emmanuel Custodero
  • Patent number: 7135517
    Abstract: A rubber composition usable for the manufacture of tires, based on at least one diene elastomer, at least one reinforcing inorganic filler and at least one coupling agent providing a bond between the inorganic filler and the elastomer. The reinforcing inorganic filler includes a silicon nitride having the following characteristics: (a) a BET specific surface area of between 20 and 200 m2/g; (b) an average particle size (by mass), dw, of between 10 and 350 nm. The rubber composition may be used for the manufacture of rubber articles, in particular of tires or semi-finished products made of rubber intended for tires, in particular of treads.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: November 14, 2006
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Laure Simonot, Arnaud Lapra, Anne Veyland, Emmanuel Custodero
  • Publication number: 20060009564
    Abstract: A rubber composition usable for the manufacture of tires, based on at least one diene elastomer, one reinforcing inorganic filler and a coupling agent providing the bond between the inorganic filler and the elastomer. The inorganic filler comprises a synthetic aluminosilicate of the formula: MxSiAlyOa(OH)b, (H2O)c??(I) in which: M is a cation selected from of K+, Na+, Ca++ and mixtures of these cations; x>0; y>0; a?0; b?0, c?0 and a+b>0, and having the following characteristics: (a) a BET specific surface area of between 20 and 300 m2/g; (b) an average particle size by mass (dw) of between 20 and 400 nm; and (c) an ultrasound disagglomeration rate (?) greater than 5×10?4 ?m?1/min.
    Type: Application
    Filed: June 20, 2005
    Publication date: January 12, 2006
    Applicant: MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Laure Simonot, Anne Veyland, Arnaud Lapra, Emmanuel Custodero
  • Patent number: 6975396
    Abstract: A reinforcing aluminum-based filler which can be used for reinforcing diene rubber compositions intended for the manufacture of tires, comprising an aluminum (oxide)hydroxide corresponding, with the exception of any impurities and the water of hydration, to the general formula (a and b being real numbers): Al(OH)aOb, with 0<a?3 and b=(3?a)/2,??(I) the specific BET surface area of which is between 30 and 400 m2/g, the average particle size (by mass) dw of which is between 20 and 400 nm and the disagglomeration rate, ?, of which, measured via an ultrasound disagglomeration test at 100% power of a 600-watt ultrasonic probe, is greater than 5×10?3 ?m?1/s is provided. A rubber composition suitable for the manufacture of tires comprising said aluminum-based filler as reinforcing filler.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: December 13, 2005
    Assignee: Compagnie Generale des Establissements Michelin-Michelin & Cie
    Inventors: Emmanuel Custodero, Laure Simonot, Jean-Claude Tardivat
  • Publication number: 20050267242
    Abstract: A reinforcing aluminum-based filler which can be used for reinforcing diene rubber compositions intended for the manufacture of tires, comprising an aluminum (oxide-)hydroxide corresponding, with the exception of any impurities and the water of hydration, to the general formula (a and b being real numbers): Al(OH)aOb, with 0<a?3 and b=(3?a)/2,??(I) the specific BET surface area of which is between 30 and 400 m2/g, the average particle size (by mass) dw of which is between 20 and 400 nm and the disagglomeration rate, ?, of which, measured via an ultrasound disagglomeration test at 100% power of a 600-watt ultrasonic probe, is greater than 5×10?3 ?m?1/s is provided. A rubber composition suitable for the manufacture of tires comprising said aluminum-based filler as reinforcing filler.
    Type: Application
    Filed: July 28, 2005
    Publication date: December 1, 2005
    Inventors: Emmanuel Custodero, Laure Simonot, Jean-Claude Tardivat
  • Publication number: 20050171264
    Abstract: A rubber composition usable for the manufacture of tires, based on at least one diene elastomer, at least one reinforcing inorganic filler and at least one coupling agent providing a bond between the inorganic filler and the elastomer. The reinforcing inorganic filler includes a silicon nitride having the following characteristics: (a) a BET specific surface area of between 20 and 200 m2/g; (b) an average particle size (by mass), dw, of between 10 and 350 nm. The rubber composition may be used for the manufacture of rubber articles, in particular of tires or semi-finished products made of rubber intended for tires, in particular of treads.
    Type: Application
    Filed: December 30, 2004
    Publication date: August 4, 2005
    Inventors: Laure Simonot, Arnaud Lapra, Anne Veyland, Emmanuel Custodero
  • Patent number: 6835769
    Abstract: The invention provides rubber composition usable for the manufacture of tires, comprising at least (i) one diene elastomer, (ii) one white filler as reinforcing filler and (iii) one coupling agent (white filler/elastomer), the white filler comprising a titanium oxide having the following characteristics: (a) it comprises more than 0.5% by mass of a metallic element, other than titanium, selected from the group consisting of Al, Fe, Si, Zr and mixtures thereof; (b) its specific BET surface area is between 20 and 200 m2/g; (c) its average particle size (by mass), dw, is between 20 and 400 nm; and (d) its disagglomeration rate, &agr;, measured by the ultrasound disagglomeration test, at 100% power of a 600-watt ultrasonic probe, is greater than 2×10−2 &mgr;m−1/s. The invention also provides for the use of a rubber composition according to the invention for the manufacture of rubber articles, in particular tires or semi-finished rubber products intended for these tires.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: December 28, 2004
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Emmanuel Custodero, Laure Simonot, Jean-Claude Tardivat