Compagnie Generale Des Establissements Michelin Patent applications |
Patent application number | Title | Published |
20150075691 | TYRE AND EXTENDED-MOBILITY WHEEL-TYRE ASSEMBLY - A tyre has a form of a torus that is open radially on an inside portion. The tyre includes inner and outer walls, a crown, two sidewalls, two beads, a crown reinforcement, and a carcass reinforcement anchored in the beads and extending at least from the beads as far as the crown. The inner wall is covered at least in part with an airtight layer, and the airtight layer is covered at least in part with a layer of a self-sealing product. Each of the beads includes an annular reinforcing structure, with each annular reinforcing structure being formed of a plurality of windings of a single metal thread. The windings are arranged in a plurality of radially superposed layers, with each layer having a group of the windings arranged axially in a side by side manner, such that the superposed layers have a hexagonal cross section. | 03-19-2015 |
20150034224 | PNEUMATIC TIRE TREAD - A pneumatic tire tread capable of mitigating air column resonance and maintaining drainage performance while ensuring that the flexible fences are abraded to a similar extent to the tread portion is formed from a rubber composition, and has a tread portion in which a primary groove is formed and multiple flexible fences is formed in the primary groove; the flexible fences are formed from at least a rubber composition for fences that is different from the rubber composition for the tread portion; the rubber composition for fences of the flexible fences has an abrasion index that is more than or equal to twice the abrasion index of the rubber composition of the tread portion; and the rubber composition for fences comprises a filler composition that is based on (a) a diene elastomer, (b) a filler A, which is more than 50 phr of filler A in which the filler particles are nanoparticles having an average grain size (by weight average) smaller than 500 nm; and (c) a filler B, which is more than 50 phr of filler B in which the filler particles are microparticles having a median grain size (by weight average) larger than 1 μm. | 02-05-2015 |
20140350202 | ACTIVATION OF CATALYTIC SYSTEMS FOR THE STEREOSPECIFIC POLYMERIZATION OF DIENES - An activated preformed catalytic system for the 1,4-cis stereospecific polymerization of conjugated dienes based on at least:
| 11-27-2014 |
20140348692 | METHOD AND APPARATUS FOR PRODUCING THREE-DIMENSIONAL OBJECTS - An apparatus and a process for manufacturing a three-dimensional object by successive layer-by-layer consolidation of selected zones of a powder stratum, the consolidated zones corresponding to successive sections of the three-dimensional object, each layer being divided into a central internal portion and an external border , said process comprising the following steps in order:
| 11-27-2014 |
20140332132 | TIRE COMPRISING A TREAD MADE UP OF SEVERAL ELASTOMERIC COMPOUNDS - A tire with radial carcass reinforcement, comprising a crown reinforcement, itself capped radially by a tread connected to two beads by two sidewalls, the said tread comprising at least two radially superposed layers of polymer compound, a first layer of filled elastomeric compound, constituting the radially outer part of the tread, has a macrodispersion score Z higher than 80 and a maximum tan(δ) value, denoted tan(δ)max, lower than 0.130 and a second layer of elastomeric compound radially on the inside of the said first layer of elastomeric compound has an elongation at break at 60° C. that is higher than 600%. | 11-13-2014 |
20140316057 | GRAFT POLYMER TO WHICH COMBINED NITROGEN MOLECULES ARE GRAFTED - The present invention relates to a modified polymer obtained by grafting a compound comprising at least one group Q, and at least one group A bonded together by at least, and preferably, one “spacer” group Sp in which:
| 10-23-2014 |
20140171557 | TIRE WITH A TREAD COMPRISING AN EMULSION SBR HAVING A HIGH TRANS CONTENT - The present invention relates to a tyre, the tread of which comprises a rubber composition comprising at least:
| 06-19-2014 |
20140166177 | HIGH CONTRAST TIRE PATTERN - A rubber tire comprising a surface having, over at least a portion of this surface, a pattern comprising a plurality of bars placed substantially parallel with one another, each comprising a tip distant from the surface of the tire and a base materially integral with the tire. Each bar of the plurality of bars comprises two inclined walls extending on either side of the tip towards the base, the angle of inclination of each inclined walls less than or equal in absolute value to 25° relative to a direction perpendicular to the surface. The bases of the bars are not in contact with one another so that the bases of two adjacent bars delimit a residual surface between the bars. The width of the residual surface corresponding to a distance between the bases of the two adjacent bars is less than or equal to half the height of the adjacent bars, the height being between 0.1 mm and 0.8 mm. | 06-19-2014 |
20140150950 | BEAD FOR A TIRE FOR A HEAVY CIVIL-ENGINEERING VEHICLE - The invention relates to improving the endurance of a bead of a radial tire for a heavy vehicle of construction plant type by reducing the compression to which the turn-up is subjected when the tire is driven on. According to the invention, for a tire for a heavy vehicle of construction plant type comprising two beads intended to come into contact with a rim having two rim flanges, a carcass reinforcement comprising at least one carcass reinforcement layer having a main part wrapped, within each bead, from the inside towards the outside of the tire, around a bead wire of substantially circular meridian section, to form a turn-up, a filling element extending the bead wire radially towards the outside and axially separating the main part and the turn-up, the distance (d) between a first segment of turn-up and the main part decreasing continuously, radially towards the outside, from the bead wire as far as a minimum distance (d | 06-05-2014 |
20140130959 | METHOD FOR PRODUCING A TIRE CARCASS PLY - In the method for producing a tire carcass ply for a vehicle, the ply is wound onto a drum and contains reinforcements running in planes that are radial to an axis of the drum, of which:
| 05-15-2014 |
20140014248 | PNEUMATIC TIRE AND METHOD FOR PRODUCING SAME - A method for producing a pneumatic tire in which a noise damper in the form of at least one continuous ribbon for reducing cavity resonance in a tire cavity is provided on the internal surface of a tire on the inside in the radial direction of the tire corresponding to the tire tread, including, providing a vulcanized and shaped tire; mixing a composition for forming the noise damper with a foaming agent to produce a liquid composition; rotating the tire in an upright state by means of a tire holding and rotation device, and introducing the liquid composition onto the tire internal surface by a device for introducing the liquid composition; varying the relative positional relationship of the pneumatic tire and the introduction implement in the axial direction of the tire while introducing the liquid composition is introduced onto the tire internal surface, and forming the liquid composition into a gel; and foaming and drying the gelled liquid composition. | 01-16-2014 |
20130340913 | TIRE, THE CARCASS REINFORCEMENT OF WHICH IS REINFORCED WITH A LAYER OF REINFORCING ELEMENTS IN THE BEAD REGION - The invention relates to a tire having a radial carcass reinforcement, consisting of at least one layer of reinforcing elements anchored in each of the beads by an upturn around a bead wire, said carcass reinforcement upturn being reinforced by at least one layer of reinforcing elements or stiffener, the radially outer end of which is radially on the outside of the end of the upturn. | 12-26-2013 |
20130317137 | ELASTOMERIC COMPOSITION EXHIBITING GOOD DISPERSION OF THE FILLER IN THE ELASTOMERIC MATRIX - The invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler comprising at least carbon black and an inorganic filler with an inorganic filler content of less than or equal to 50 parts by weight per hundred parts of elastomer, characterized in that the composition is obtained from a first masterbatch comprising at least one first diene elastomer and carbon black, and having a dispersion of the carbon black in the elastomeric matrix that has a Z value of greater than or equal to 90, added to which is the inorganic filler and at least one second elastomer, identical to or different from the first elastomer, and also to the process for preparing such a composition. | 11-28-2013 |
20130292023 | RUBBER COMPOSITION WITH LOW SURFACE AREA CARBON BLACK - Tire components including bead area components and sidewall supports for a run-flat pneumatic tire that are constructed of a material based upon a cross-linkable rubber composition. The cross-linkable rubber composition includes, per 100 parts by weight of rubber (phr)* between 10 phr—and 90 phr—of a polyisoprene rubber and between 10 phr—and 90 phr of a polybutadiene rubber. The rubber composition further includes between 60 phr and 100 phr of a thermal carbon black having a nitrogen surface area of between 5 m | 11-07-2013 |
20130287982 | POLYURETHANE - A polyurethane that is a reaction product of reaction components, the reaction components comprising (a) a polyol; (b) a polyisocyanate selected from an aromatic, alicyclic or aliphatic polyisocyanate or combinations thereof; (c) a mixture of chain extenders that includes (i) a chain extender having a sulfur bridge in an amount of between 1 and 30 weight percent of the total mixture of claim extenders and (ii) a main chain extender, wherein the chain extender having a sulfur bridge. The chain extender having a sulfur bridge may be characterized as | 10-31-2013 |
20130287882 | APPARATUS FOR CASTING A NON-PNEUMATIC TIRE - This invention relates generally to an apparatus for casting a portion of a tire, and, more specifically, to an apparatus that has a cap and an outer ring that are rotatably attached to a fixed portion of the molding apparatus for centrifugally molding the spokes of a non-pneumatic tire from polyurethane or some other suitable material. The cap and outer ring have separate rotatable attachments to the apparatus and are not otherwise connected to each other, so they are free to rotate without obscuring the pouring slot of the mold. | 10-31-2013 |
20130280511 | Tire Cover Comprising a Self-Adherent Composite Reinforcement - 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) ( | 10-24-2013 |
20130273366 | Composite Reinforcement and Manufacturing Process Therefor - Composite reinforcer (R- | 10-17-2013 |
20130206312 | Tire with Improved Bead - A tire comprising two beads, each bead comprising an annular reinforcing structure, a carcass reinforcement, anchored in the two beads by a turn-up around the annular reinforcing structure, so as to form a main portion and a wrapped-around portion. Each bead comprises a bead filler situated at least partially between the main portion and the wrapped-around portion of the carcass reinforcement. Each bead further comprises an outer strip situated axially on the outside of the wrapped-around portion of the carcass reinforcement. The bead filler has a thickness E(r), this thickness corresponding to the length of the intersection of the direction perpendicular to the main portion of the carcass reinforcement with the bead filler, r denoting the distance separating the point of intersection of the direction perpendicular to the main portion of the carcass reinforcement with the carcass reinforcement from the radially innermost point of the annular reinforcing structure. The assembly formed by the bead filler and the outer strip has a thickness ET(r). For all the points of intersection of which the radial distance from the radially innermost point of the annular reinforcing structure is greater than or equal to 10% and less than or equal to 35% of the radial height H of the tire, the ratio E(r)/ET(r) is greater than or equal to 0.3 and less than or equal to 0.5. | 08-15-2013 |
20130186543 | Tire for Heavy Vehicles, Comprising a Layer of Circumferential Reinforcing Elements Consisting of a Central Part and Two Axially External Parts - The invention relates to a tyre comprising at least two working layers ( | 07-25-2013 |
20130186541 | RUBBER COMPOSITION FOR BARRIER LAYER - A barrier layer is provided for impeding the flow of inflation gas through an inflatable article, the barrier layer constructed of a material that is based upon a cross-linkable rubber composition, the cross-linkable rubber composition comprising, per 100 parts by weight of rubber (phr), between 50 phr and 90 phr of a butyl rubber and between 10 phr and 50 phr of a total amount of a GCO copolymer comprising epichlorohydrin derived units and allyl glycidyl ether derived units and a GECO terpolymer comprising epichlorohydrin derived units, allyl glycidyl ether derived units and ethylene oxide derived units, wherein the GECO terpolymer is between 1 percent by weight and 50 percent by weight of the total and also including a sulfur cure system. | 07-25-2013 |
20130186540 | BARRIER LAYER FOR INFLATABLE ARTICLES - A barrier layer for impeding the flow of inflation gas through an inflatable article, the barrier layer constructed of a material that is based upon a cross-linkable rubber composition, the cross-linkable rubber composition comprising, per 100 parts by weight of rubber (pbr) at least 50 phr of a primary elastomer selected from at least one of a halogenated butyl rubber or a polymeric halogenated rubber comprising C | 07-25-2013 |
20130171486 | Accumulator Assembly for a Battery of an Electric or Hybrid Vehicle, Provided with a Deformable Connector Support - The accumulator assembly comprises a plurality of electrical energy accumulator elements | 07-04-2013 |
20130164401 | THIN PLATE FOR A LINING OF A MOULD INTENDED FOR VULCANIZING A TIRE TREAD - The invention relates to a blade for a lining of a mould intended for vulcanizing a tire tread, the said blade being produced by selective laser melting. The blade comprises an anchoring part configured to anchor the blade in a body of the lining, a moulding part configured to mould at least one cut in the tread of the tire. The blade further comprises reinforcing means, wholly present in the anchoring part of the said blade. | 06-27-2013 |
20130159201 | SYSTEM AND METHOD FOR MANAGING A PLURALITY OF TIRES - Systems, methods and computer program products are provided for managing a plurality of tires from their procurement through their disposal. An embodiment may include a method for determining all the costs of a tire over its total service life including procurement costs, repair costs, retread costs and disposal costs. An embodiment may include managing an inventory by automatically replenishing the inventory by following a set of stored inventory management rules. An embodiment may include helping to ensure that an impermissible tire is not mounted on a vehicle. A stored set of tire mounting rules automatically check the tire being mounted against requirements for the tire set by the rules, the requirements set as to by vehicle type and wheel position. | 06-20-2013 |
20130096248 | TIRE TREAD FOR HIGH PERFORMANCE TIRES - Tires having treads constructed of a material that is based upon a cross-linkable rubber composition, the rubber composition in some embodiments including between 25 phr and 5.0 phr of a butadiene rubber and between 50 phr and 75 phr of a styrene-butadiene rubber (SBR). wherein the butadiene portion of the SBR has at least 50% vinyl content. The rubber composition may further include between 25 phr and 60 phr of a plasticizing resin having a glass transition temperature Tg of between 30° C. and 120° C. and between 25 phr 60 phr of a vegetable oil. The ratio of the vegetable oil phr to the high Tg resin phr may, in some embodiments, be between 0.75 and 3. Further, such rubber compositions may also be reinforced with between 100 phr and 200 phr of a silica filler. | 04-18-2013 |
20120318424 | TIRE HAVING A CROWN AREA PROVIDED WITH A SUBLAYER COMPRISING A THERMOPLASTIC ELASTOMER - Radial tire having:
| 12-20-2012 |