Patents by Inventor Sebastien Rigo
Sebastien Rigo 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).
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Publication number: 20150030851Abstract: A composite reinforcer capable of adhering directly to a diene rubber matrix, which can be used in particular as a reinforcing element for a tyre, comprises: one or more reinforcing thread(s), for example a thread or cord made of carbon steel; and a layer of a polymer composition which covers the said thread, individually each thread or collectively several threads, this layer comprising at least one thermoplastic polymer, the glass transition temperature of which is positive, such as, for example, a polyamide, and an epoxidized diene elastomer, such as, for example, natural rubber or a butadiene homopolymer or copolymer. A process for the manufacture of such a composite reinforcer, and a finished article or semi-finished product made of rubber, in particular a tyre, incorporating such a composite reinforcer are also disclosed.Type: ApplicationFiled: January 31, 2013Publication date: January 29, 2015Inventors: Vincent Abad, Sébastien Rigo, Emmanuel Custodero
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Publication number: 20150004413Abstract: A composite reinforcer capable of adhering directly to a diene rubber matrix, which can be used in particular as a reinforcing element for a tyre, comprises: one or more reinforcing thread(s), for example a thread or cord made of carbon steel; and a layer of a polymer composition which covers the said thread, individually each thread or collectively several threads, this layer comprising at least one thermoplastic polymer, the glass transition temperature of which is positive, such as, for example, a polyamide, a poly(p-phenylene ether) and a functionalized diene elastomer, such as, for example, natural rubber or a butadiene homopolymer or copolymer, bearing functional groups chosen from epoxide, carboxyl, acid anhydride or acid ester groups. A process for the manufacture of such a composite reinforcer, and a finished article or semi-finished product made of rubber, in particular a tyre, incorporating such a composite reinforcer are also disclosed.Type: ApplicationFiled: January 31, 2013Publication date: January 1, 2015Applicant: Compagnie Generale des Etablissements MichelinInventors: Vincent Abad, Sébastien Rigo, Emmanuel Custodero
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Publication number: 20140311120Abstract: Metal cord (C-1) with two concentric layers (Ci, Ce) of M+N construction, comprising an internal first layer or core (Ci) made up of M wire(s) (10) of diameter d1, M varying from 1 to 4, around which core are wound together in a helix, in an external second layer (Ce), N wires (11) of diameter d2, in which at least some of the gaps in the cord which are situated between the wires of the various contain a filling rubber (13) based on an unsaturated thermoplastic elastomer, particularly a styrene thermoplastic elastomer (TPS) such an SBS or SIS block copolymer for example. Such a thermoplastic elastomer, when used in the molten state, presents no problems of unwanted stickiness if the filling rubber overspills outside the cord after manufacture; its unsaturated and therefore (co)vulcanizable nature makes it extremely compatible with the diene rubber, for example natural rubber, matrices usually used as calendering rubber in the metal fabrics intended for reinforcing the tyres.Type: ApplicationFiled: November 14, 2012Publication date: October 23, 2014Inventors: Thibaud Pottier, Sébastien Rigo, Jérémy Toussain
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Publication number: 20140290204Abstract: A method of manufacturing a metal cord with two concentric layers of wires is provided. The cord includes an internal layer of M wires, M having a value from 1 to 4, and an external layer of N wires. The cord is rubberized from within in situ. That is, during manufacture of the cord, the cord is rubberized from inside. According to the method, the internal layer is sheathed with rubber or a rubber compound by passing the internal layer through an extrusion head, and the N wires of the external layer are assembled around the sheathed internal layer to form a two-layer cord rubberized from the inside. The rubber is an unsaturated thermoplastic elastomer that is extruded in a molten state, and preferably is a thermoplastic styrene (TPS) type of thermoplastic elastomer, such as an SBS or an SIS block copolymer, for example.Type: ApplicationFiled: November 14, 2012Publication date: October 2, 2014Inventors: Emmanuel Custodero, Sébastien Rigo, Jérémy Toussain
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Patent number: 8790788Abstract: Composite reinforcement (R-2) that is self-adhesive by curing to a diene rubber matrix, which can be used as reinforcing element for a tire, having one or more reinforcing thread(s) (20), for example a carbon steel cord; a first layer (21) of a thermoplastic polymer, the glass transition temperature of which is positive, for example 6,6 polyamide, covering the thread or the threads; and a second layer (22) having a functionalized unsaturated thermoplastic styrene elastomer, the glass transition temperature of which is negative, for example an epoxidized SBS elastomer, covering the first layer (21), the elastomer containing functional groups selected from epoxide, carboxyl and acid anhydride or ester groups. Process for manufacturing such a composite reinforcement and rubber article or semi-finished product, especially a tire, incorporating such a composite reinforcement.Type: GrantFiled: May 20, 2010Date of Patent: July 29, 2014Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements MichelinInventors: Emmanuel Custodero, Sébastien Rigo, Vincent Abad
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Patent number: 8785543Abstract: Composite reinforcer (R-2) capable of adhering directly to a diene rubber matrix, which can be used as reinforcing element for a tire, having one or more reinforcing thread(s) (20); a first layer (21) of a thermoplastic polymer, the glass transition temperature of which is positive covering individually the thread or several threads; a second layer (22) of a composition having a poly(p-phenylene ether) (“PPE”) and a functionalized unsaturated thermoplastic styrene (“TPS”) elastomer, the glass transition temperature of which is negative, the elastomer bearing functional groups selected from epoxide, carboxyl, acid anhydride and acid ester groups, in particular an epoxidized SBS elastomer, covering the first layer (21). Process for manufacturing a composite reinforcer and rubber article or semi-finished product, especially a tire, incorporating such a composite reinforcer.Type: GrantFiled: October 25, 2010Date of Patent: July 22, 2014Assignees: Compagnie Generale des Establissements Michelin, Michelin Recherche et Techniques S.A.Inventors: Vincent Abad, Sebastien Rigo, Christophe Chouvel
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Publication number: 20140190604Abstract: The present invention relates to a tyre provided with a tread, such that the tread comprises at least one thermoplastic elastomer, which is a block copolymer comprising at least one elastomer block and at least one thermoplastic block, and hollow microparticles.Type: ApplicationFiled: July 20, 2012Publication date: July 10, 2014Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Emmanuel Custodero, Vincent Lemal, Jose Merino Lopez, Sébastien Rigo
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Patent number: 8763662Abstract: Composite reinforcement (R-2) capable of adhering directly to a diene rubber matrix, which can be used as reinforcing element for a tire, comprising: one or more reinforcing thread(s) (20), for example a carbon steel cord; a first layer (21) of a thermoplastic polymer, the glass transition temperature of which is positive, for example 6,6 polyamide, covering said thread or said threads; a second layer (22) of a composition comprising an unsaturated thermoplastic stirene (“TPS”) elastomer, the glass transition temperature of which is negative, for example an SB (stirene/butadiene) or SBS (stirene/butadiene/stirene) block copolymer, as well as a poly(p-phenylene ether) (“PPE”), covering the first layer (21). Process for manufacturing such a composite reinforcement and rubber article or semi-finished product, especially a tire, incorporating such a composite reinforcement.Type: GrantFiled: July 21, 2010Date of Patent: July 1, 2014Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.Inventors: Vincent Abad, Sebastien Rigo, Christophe Chouvel
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Patent number: 8662129Abstract: A pneumatic tire having pairs of shoulder section and bead section shear layers positioned on at least one axial side of the carcass layer. Examples include one or more of the shear layers constituted of an elastomeric fabric having elastomeric fibers woven in the fabric. Such fibers may be spandex fibers and the fabric may further be characterized as being woven additionally with nylon fibers in a tricot construction. Other embodiments include at least one of the shear layers constituted of a polyurethane type elastomer material having an MA1O of between 1 MPa and 350 MPa. Exemplary shoulder section and bead section shear layers in a pinch shocked region are opposite across an interior of the tire.Type: GrantFiled: March 6, 2009Date of Patent: March 4, 2014Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.Inventors: Benjamin I. Kaplan, Fanny Hosdez, Sébastien Rigo
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Publication number: 20140051312Abstract: Rubber composite, and in particular tyre, reinforced with a sized textile material, such as a fibre or a film, at least one portion of which is coated with an adhesive layer, capable of adhering directly via curing (crosslinking) to an unsaturated rubber matrix, such as a natural rubber matrix, characterized in that said layer comprises an adhesive composition or thermoplastic adhesive, in the liquid or solid state, which is based on at least one unsaturated thermoplastic styrene (TPS) elastomer and a poly(p-phenylene ether) (PPE). Such an adhesive based on unsaturated TPS and PPE advantageously makes it possible to replace a conventional textile adhesive of RFL type. Use of such an adhesive for the adhesive bonding of a textile material to an unsaturated, in particular diene, rubber. Process for obtaining such a composite.Type: ApplicationFiled: January 31, 2012Publication date: February 20, 2014Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent Abad, Sébastien Rigo, Emmanuel Custodero
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Publication number: 20140045983Abstract: Composite reinforcer (R-2) capable of adhering directly to a diene rubber matrix, which can be used as a reinforcing element for a pneumatic tyre, comprising: one or more reinforcing thread(s) (20), for example a carbon steel cord; covering said thread, individually each thread or collectively several threads, a layer of a thermoplastic polymer composition comprising at least one thermoplastic polymer, the glass transition temperature of which is positive, a poly(p-phenylene ether) (PPE) and a functionalized unsaturated thermoplastic styrene (TPS) elastomer, the glass transition temperature of which is negative, said TPS elastomer bearing functional groups selected from epoxide, carboxyl and acid anhydride or ester groups. Process for manufacturing such a composite reinforcer and rubber article or semi-finished product, especially a pneumatic tyre, incorporating such a composite reinforcer.Type: ApplicationFiled: January 31, 2012Publication date: February 13, 2014Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent Abad, Sébastien Rigo, Emmanuel Custodero
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Publication number: 20140044964Abstract: Composite reinforcer (R-2) capable of adhering directly to a diene rubber matrix, which can be used as a reinforcing element for a pneumatic tyre, comprising: one or more reinforcing thread(s) (20), for example a carbon steel cord; covering said thread, individually each thread or collectively several threads, a layer of a thermoplastic polymer composition comprising at least one thermoplastic polymer, the glass transition temperature of which is positive, an unsaturated thermoplastic styrene (TPS) elastomer, the glass transition temperature of which is negative, and a poly(p-phenylene ether) (“PPE”). Process for manufacturing such a composite reinforcer and rubber article or semi-finished product, especially a pneumatic tyre, incorporating such a composite reinforcer.Type: ApplicationFiled: January 31, 2012Publication date: February 13, 2014Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent Abad, Sébastien Rigo, Emmanuel Custodero
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Publication number: 20140045984Abstract: Composite reinforcer (R-2) that is self-adhesive by curing to a diene rubber matrix, which can be used as reinforcing element for a pneumatic tire, comprising: one or more reinforcing thread(s) (20), for example a carbon steel cord; covering said thread, individually each thread or collectively several threads, a layer of a thermoplastic polymer composition comprising on the one hand a thermoplastic polymer, the glass transition temperature of which is positive, on the other hand a functionalized unsaturated thermoplastic stirene elastomer, the glass transition temperature of which is negative, said elastomer containing functional groups selected from epoxide, carboxyl and acid anhydride or ester groups. Process for manufacturing such a composite reinforcer and rubber article or semi-finished product, especially a pneumatic tire, incorporating such a composite reinforcer.Type: ApplicationFiled: November 16, 2011Publication date: February 13, 2014Inventors: Vincent Abad, Sébastien Rigo, Emmanuel Custodero
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Patent number: 8631846Abstract: A pneumatic tire with a built-in self-sealing layer includes an outer rubbery tread, a carcass reinforcement, a gastight layer located at an inside position relative to the carcass reinforcement, a protective layer located at an innermost position, and a self-sealing layer adjacent to the protective layer and located at an inside position relative to the gastight layer. The protective layer is a thermoplastic film that includes a copolymer formed of at least hard blocks and soft blocks corresponding to a formula: -(BR-BS)n-, where: BR represents a hard block composed of a polyamide or of a blend of polyamides; BS represents a soft block composed of a polyether, a blend of polyethers, or a polyether/polyester copolymer; and n represents a number of (BR-BS) units of the block copolymer, such as, for example, a poly(ether-block-amide) copolymer.Type: GrantFiled: July 30, 2010Date of Patent: January 21, 2014Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.Inventors: Emmanuel Custodero, Sebastien Rigo, Julien Thuilliez
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Publication number: 20130280511Abstract: Pneumatic tire comprising a composite reinforcer (R-2) that is self-adhesive by curing to a diene rubber matrix, comprising: one or more reinforcing thread(s) (20), for example a carbon steel cord; covering said thread, individually each thread or collectively several threads, a layer of a thermoplastic polymer composition comprising on the one hand a thermoplastic polymer, the glass transition temperature of which is positive, on the other hand an unsaturated thermoplastic stirene elastomer, the glass transition temperature of which is negative.Type: ApplicationFiled: September 16, 2011Publication date: October 24, 2013Applicants: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ESTABLISSEMENTS MICHELINInventors: Vincent Abad, Sébastien Rigo, Emmanuel Custodero
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Publication number: 20130273366Abstract: Composite reinforcer (R-2) that is self-adhesive, by curing, to a diene rubber matrix, which can be used as reinforcing element for a pneumatic tire, comprising: one or more reinforcing thread(s) (20), for example a carbon steel cord; a first layer (21) of a thermoplastic polymer, the glass transition temperature of which is positive, for example a polyamide, covering said thread, individually each thread or collectively several threads; a second layer (22) of a composition comprising a poly(p-phenylene ether) (“PPE”) and a functionalized diene elastomer bearing functional groups selected from epoxide, carboxyl, acid anhydride and acid ester groups, in particular an epoxidized SBR, covering the first layer (21). Process for manufacturing such a composite reinforcer and rubber article or semi-finished product, especially a pneumatic tire, incorporating such a composite reinforcer.Type: ApplicationFiled: September 16, 2011Publication date: October 17, 2013Applicants: Michelin Recherche et Technique S.A., Compagnie Generale des Establissements MichelinInventors: Vincent Abad, Sébastien Rigo, Emmanuel Custodero
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Publication number: 20130232936Abstract: Method for manufacturing a metal cord with three concentric layers including a first layer of diameter dc made up of M wire(s) of diameter d1, around which layer are wound together as a helix at a pitch p2, as a second layer, N wires of diameter d2, around which are wound as a helix at pitch p3, as a third layer, P wires of diameter d3. The N wires of the second layer are assembled around the layer to form, at a point called “assembling point”, an intermediate cord called “core strand” of M+N construction; upstream and/or downstream of the assembling point, the layer and/or the core strand is sheathed with a rubber or rubber composition by passing through at least one extrusion head; then the P wires of the third layer are assembled around the core strand to form a cord of M+N+P construction thus rubberized from the inside.Type: ApplicationFiled: May 6, 2011Publication date: September 12, 2013Applicants: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Emmanuel Custodero, Sébastien Rigo, Jérémy Toussain
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Publication number: 20130227924Abstract: Method of manufacturing a multi-layer metal cord having a plurality of concentric layers of wires, comprising one or more inner layer(s) and an outer layer, of the type “rubberized in situ.” The method includes the following steps: at least one step of sheathing at least one inner layer with the rubber or the rubber composition by passing through at least one extrusion head; and an assembling step in which the wires of the outer layer are assembled around the inner layer adjacent to it, in order to form the multi-layer cord thus rubberized from the inside. The rubber is an unsaturated thermoplastic elastomer extruded in the molten state, preferably a thermoplastic elastomer of the thermoplastic stirene (TPS) elastomer type such as an SBS, SBBS, SIS or SBIS block copolymer for example.Type: ApplicationFiled: May 6, 2011Publication date: September 5, 2013Applicants: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Emmanuel Custodero, Sébastien Rigo, Jérémy Toussain
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Publication number: 20130220506Abstract: Metal cord with three concentric layers including a first layer of diameter dc made up of M wire(s) of diameter d1, around which are wound as a helix at a pitch p2, as a second layer, N wires of diameter d2, around which are wound as a helix at pitch p3, as a third layer, P wires of diameter d3.Type: ApplicationFiled: May 6, 2011Publication date: August 29, 2013Applicants: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Thibaud Pottier, Sébastien Rigo, Jérémy Toussain
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Publication number: 20130220505Abstract: Metal cord with a plurality of concentric layers, of the type rubberized in situ, i.e. a cord that is rubberized from the inside, during its actual manufacture, with a rubber known as a filling rubber, in which all or some of the gaps situated between the wires of the cord contain a thermoplastic elastomer of the unsaturated type, particularly an unsaturated thermoplastic stirene (TPS) elastomer such as an SBS, SBBS, SIS or SBIS block copolymer for example. Such a thermoplastic elastomer, used in the molten state, presents no problems of parasitic stickiness if the filling rubber overspills out of the cord following manufacture; its unsaturated and therefore (co)vulcanizable nature makes it extremely compatible with the diene rubber matrices, notably natural rubber matrices as conventionally used as calendering rubber in the metal fabrics intended for reinforcing tires.Type: ApplicationFiled: May 6, 2011Publication date: August 29, 2013Applicants: Michelin Recherche et Technique S.A., Compagnie Generale Des Etablissements MichelinInventors: Thibaud Pottier, Sébastien Rigo, Jérémy Toussain