Tires, Resilient Patents (Class 152/151)
  • Patent number: 10882361
    Abstract: A tire includes a pair of sidewalls and a circumferential tread having a zigzag circumferential groove. The zigzag circumferential groove is defined by a groove bottom, a pair of groove walls, and a pair of groove edges defining an intersection between each groove wall and a top surface of the circumferential tread, wherein each of the groove edges smoothly widens and narrows along the groove. The circumferential tread has a first circumferential pitch with first and second circumferential pitch lengths. The first circumferential pitch includes a first zigzag circumferential groove segment and a second zigzag circumferential groove segment that form a first intersection angle. The second circumferential pitch includes a third zigzag circumferential groove segment and a fourth zigzag circumferential groove segment that form a second intersection angle different from the first intersection angle.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: January 5, 2021
    Assignees: Bridgestone Americas Tire Operations, LLC, Bridgestone Bandag, LLC
    Inventors: Aleksandr Ian Shmagranoff, David M. Severyn, Todd A. Buxton, Andrew D. Cerny, Stephen T. Miranda
  • Patent number: 10661620
    Abstract: A computerized tire heating system is provided for. The system features a carcass with a tread, a sidewall and a bead, an inner tube having an inner volume, a first layer of thermal insulation, connected to said bead, a second later of thermal insulation, connected to said tread, a power source, and a heating system having more than one heating coil located in between the first layer of thermal insulation and the second layer of thermal insulation, where the heating system is connected to said power source. The computerized tire heating system may also have a heating gel located in the inner volume of the inner tube.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: May 26, 2020
    Inventor: Christopher Wilkinson
  • Patent number: 10661608
    Abstract: The tread comprises a plurality of blocks, each block being delimited by transverse or oblique grooves and circumferential grooves. Each block is provided with a sipe which has three branches. The branches have common ends. A first branch is oriented in a transverse or oblique direction. A second branch and a third branch each open when new into a transverse groove delimiting the block. The angle formed between the first and second branches is 100 to 125 degrees, and the angle formed between the first and the third branches is 100 to 125 degrees. After wear, each sipe represents between 45% and 70% of the total wearable thickness, such that the lengths of the three branches measured on the new tread surface, L1?, L2?, L3? respectively, are shorter than the lengths L1, L2, L3 respectively measured on the tread surface when new.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: May 26, 2020
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.
    Inventor: Olivier Spinnler
  • Patent number: 10569600
    Abstract: An adhered composite includes (i) a polar thermoset substrate; (ii) optionally a primer layer disposed on the polar thermoset substrate; (iii) a first adhesive layer adhesively mated to the polar thermoset substrate, optionally with the primer layer disposed between the first adhesive layer and the polar thermoset substrate; (iv) a first layer of cured non-polar rubber adhesively mated to the first adhesive layer; (v) a second adhesive layer adhesively mated to the first layer of cured non-polar rubber; and (vi) a second layer of cured non-polar rubber forming an outer surface of the composite.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: February 25, 2020
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Joshua P. Abell, Ross W. Widenor
  • Patent number: 10442247
    Abstract: The invention relates to a tire comprising a crown reinforcement formed of at least two working crown layers each formed of reinforcing elements inserted between skim layers of rubber compound, a first layer S of polymer compound being in contact with at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements. In accordance with the invention, the elastic modulus under tension at 10% elongation of at least one skim layer of at least one working crown layer is less than 8.5 MPa, the maximum value of tan(?), denoted tan(?)max of the said at least one skim layer of at least one working crown layer is less than 0.100, and the complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle, of the said first layer S of polymer compound is greater than 1.35 MPa.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: October 15, 2019
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Hichem Rehab, Jean-François Parmentier
  • Patent number: 10342808
    Abstract: A rocuronium bromide injection solution-prefilled syringe of the present invention includes a syringe comprising an outer cylinder made of synthetic resin, a gasket which is accommodated inside the outer cylinder and liquid-tightly slidable inside the outer cylinder, and a seal member for sealing a distal end opening of the outer cylinder; and a rocuronium bromide injection solution filled inside the syringe. The gasket is formed by vulcanized chlorinated butyl rubber added calcined clay, and said calcined clay is only added as an inorganic filler classified as an inorganic reinforcing agent and an inorganic filling agent.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: July 9, 2019
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Akira Yoshida, Yuki Watanabe, Aiko Horiuchi, Hiroki Yoshikawa
  • Patent number: 10343455
    Abstract: A method for producing a tire member that makes it possible to yield a vulcanized rubber high in antiaging property includes: (i) mixing carbon black, a dispersing solvent and a rubber latex solution with each other to produce a rubber latex solution including the carbon black, (ii) solidifying the rubber latex solution including the carbon black to produce a rubber solidified product including the carbon black; (iii) adding, to the rubber solidified product including the carbon black, a compound represented by the following formula (I): and dispersing the compound represented by the formula (I) into the water-containing rubber solidified product including the carbon black while dehydrating the rubber solidified product including the carbon black to produce a wet rubber masterbatch; and (iv) adding, to the resultant wet rubber masterbatch, the compound represented by the formula (I) and an antiaging agent further, and dry-mixing these substances with each other.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: July 9, 2019
    Assignee: TOYO TIRE CORPORATION
    Inventors: Kento Dogomori, Ryo Kumamoto
  • Patent number: 10308078
    Abstract: A pneumatic tire has a sipe formed in a land portion of a tread surface. The sipe has a 2D center portion, a 3D center portion and 3D side portion. The 2D center portion is positioned in a sipe bottom side at a center in a length direction. The 3D center portion is positioned in a top surface side at the center in the length direction. The 3D side portion is positioned in one end or both ends in the length direction. The 3D center portion and the 3D side portion are open at the top surface. A three-dimensional shape of the 3D center portion has a structure in which wall surfaces are engageable with each other in the length direction. A three-dimensional shape of the 3D side portion has a structure in which wall surfaces are engageable with each other in the depth direction.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: June 4, 2019
    Assignee: TOYO TIRE CORPORATION
    Inventor: Tsuyoshi Fujioka
  • Patent number: 10253226
    Abstract: A urethane adhesive composition of the present technology contains: a urethane prepolymer having isocyanate groups; and a monosulfide compound which has a monosulfide bond and a hydrolyzable silyl group and in which the monosulfide bond and a silicon atom in the hydrolyzable silyl group are bonded to each other.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 9, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Yuichi Matsuki, Megumi Abe, Yoriyoshi Yoneyama
  • Patent number: 9962998
    Abstract: A pneumatic tire includes a recess formed on a groove wall surface of a circumferential groove opposite to a widthwise groove. A wall surface defined by the recess includes an inclined surface inclined towards the widthwise groove from a tire radial direction outer side towards a tire radial direction inner side and a curved surface connecting a tire radial direction inner end of the inclined surface to a bottom defined by the recess, the curved surface having a center of curvature on the side of the widthwise groove. As a connection point between the inclined surface and the curved surface is at a position in the tire circumferential direction at which a width W of the recess in the tire width direction is smaller, the connection point is located further inward in the tire radial direction.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: May 8, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Shun Ogane
  • Patent number: 9475346
    Abstract: A tread band having at least one longitudinal groove bounded by a bottom wall, and by two sidewalls; each sidewall of the longitudinal groove has a continuous sequence of alternating projections and recesses, which extend crosswise so that, in plan view, the first longitudinal groove is zigzag shaped; each projection of one sidewall of the longitudinal groove always faces a recess in the other sidewall of the longitudinal groove; and, at all the projections, an outer portion of each sidewall slopes at a first obtuse angle to the bottom wall, and, at all the recesses, an outer portion of each sidewall slopes at a second obtuse angle, different from the first obtuse angle, to the bottom wall.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: October 25, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Davide Renis, Andrea Scatamacchia
  • Patent number: 9475351
    Abstract: An intelligent tire system may include a bearing assembly enclosing a wheel rim and a sensor module installed to be relatively rotated with respect to the wheel rim by the bearing assembly and continuously sensing an inner surface of a tire contacting a road.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: October 25, 2016
    Assignee: Hyundai Motor Company
    Inventor: Myung Ki Yeom
  • Patent number: 9315075
    Abstract: A pneumatic tire comprises a tread portion with a land ratio of from 75% to 80%, the tread portion provided with crown main grooves having groove widths of 2.0-8.0 mm and groove depths of 15.0-20.0 mm, shoulder main grooves having groove widths of from 8.0-14.0 mm and groove depths of from 15.0-20.0 mm and lateral narrow grooves with groove widths of 0.6-2.0 mm and groove depths of 15.0-20.0 mm, wherein each main groove has a cross section including a groove bottom and groove walls, each groove wall includes an inner part and an outer part, the inner part has an inclination of not more than 1 degree with respect to a groove centerline, and the outer part has an inclination larger than that of the inner part.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: April 19, 2016
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Atsushi Maehara
  • Patent number: 9090756
    Abstract: This invention relates to a rubber composition comprised of diene-based elastomer, precipitated silica and nano-scale exfoliated graphene platelets. A tire is provided having a component comprised of such rubber composition.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: July 28, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Ling Du, Xiaoping Yang, Carl Trevor Ross Pulford
  • Publication number: 20150083292
    Abstract: Particular embodiments of the invention include methods and apparatus for molding and/or curing an article. Particular embodiments of such methods include positioning a mold core centrally within mold outer portion to form an annular mold cavity between the mold outer portion and the mold core, the core including an outer ring having an outer surface for engaging the annular article, the outer ring being formed of a material capable of expanding and contracting with changes in temperature. Such methods also include heating the mold outer ring, cooling the core outer ring subsequent to the step of heating, whereby the core outer ring contracts relative to the article, and removing the article from the core outer ring.
    Type: Application
    Filed: December 1, 2014
    Publication date: March 26, 2015
    Inventors: Brian D. Wilson, Mark Creasap, Robert Gaut, James Endicott
  • Publication number: 20150013871
    Abstract: Various embodiments of a compression molded green rubber component, and methods for manufacturing the same, are disclosed.
    Type: Application
    Filed: February 18, 2014
    Publication date: January 15, 2015
    Inventors: Mark McEwen, Jon Misner, Jacob Walters, Adam Karl Nesbitt, Jon Stuckey, Robert Asper
  • Patent number: 8928472
    Abstract: A member for attachment to tire includes a functional object in suspension in a soft substance of very high deformability.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: January 6, 2015
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Martine Borot, Jonathan Champredonde
  • Patent number: 8901217
    Abstract: A composition includes a polymer matrix, a multiple-acid-derived metal soap, wherein the metal has an oxidation state of +3 or +4. An associated method for making a rubber composition includes the steps of: combining a solvent and a multiple carboxylic, phosphonic, phosphoric, sulfuric, or sulfonic acid, or mixtures thereof, and mixing to form solution A; adding a source of metal ions to solution A and mixing to form a product A, the metal being selected from the metals having an oxidation state of +3 or +4, whereby product A includes a multiple-acid-derived metal soap; and combining the multiple-acid-derived metal soap with a diene rubber.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: December 2, 2014
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, Terrence E. Hogan
  • Patent number: 8883306
    Abstract: A steel filament adapted for the reinforcement of elastomer or for thermoplastic products has a carbon content ranging up to 0.20 per cent by weight. The steel filament is provided with a coating promoting the adhesion with elastomer or thermoplastic products. The steel filament is drawn until a final diameter of less than 0.60 mm and a final tensile strength of more than 1200 MPa. Intermediate heat treatments are avoided so that the carbon footprint of the steel filament is substantially reduced.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: November 11, 2014
    Assignee: NV Bekaert SA
    Inventors: Javier Del Río Rodriguez, Dirk Meersschaut
  • Patent number: 8857482
    Abstract: The present invention provides a rubber composition for a tread which enables improvement in fuel economy, breaking performance, and abrasion resistance in a balanced manner; a method for producing the rubber composition; and a heavy-load tire. The present invention relates to a rubber composition for a tread of a heavy-load tire, including a modified natural rubber having a phosphorus content of 200 ppm or less, and carbon black.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: October 14, 2014
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Takafumi Taguchi, Naoya Ichikawa
  • Publication number: 20140246133
    Abstract: This invention pertains to a tire having a plurality of vibration absorbers wherein, (i) the vibration absorbers have at least one spring element and at least one absorber mass element, each element having a first and second surface such that the first surface of the spring element is attached to the tire carcass or attached to or embedded into the tire inner liner, and (ii) the first surface of the absorber mass element is attached to the second surface of the spring element, or the absorber mass element is embedded into the spring element.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: MARK ALLAN LAMONTIA, Geon-Seok Kim
  • Patent number: 8759408
    Abstract: Tire vulcanizing/retreading and de-vulcanization system including an autoclave and heating based on an induction system, which will lead to vulcanization or de-vulcanization of a tire.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: June 24, 2014
    Inventor: Julia Takahashi
  • Publication number: 20140102607
    Abstract: A tire with rotational visual display comprising a tire, where the tire includes an outer face, an inner edge and an outer edge; a first image on the outer face, where the first image is seen when the tire is in a still position; and a second image on the outer face, where the second image is seen when the tire rotates at a predetermined speed. The first image is arranged with a specific spacing to where when the predetermined speed is attained the second image is then seen. The second image of the tire with rotational visual display displays one of at least a word, phrase, picture, brand name, logo and slogan.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 17, 2014
    Inventor: BRUCE WOODROW
  • Patent number: 8686846
    Abstract: The tire condition of each tire of a vehicle is detected, which information is transmitted by means of electromagnetic waves from the tire condition acquisition devices to a monitoring device that receives the electromagnetic waves transmitted from tire condition acquisition devices via a receiving antenna, which monitoring device contains means for displaying the electric field intensity of the electromagnetic waves transmitted from the tire condition acquisition devices. Thus, the electric field intensity at a mounting position can easily be determined when mounting the receiving antenna, enabling easy discovery of the optimal location for mounting the receiving antenna.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: April 1, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Daisuke Kanenari, Yasuhiko Araki
  • Patent number: 8673989
    Abstract: A thermoset cross-linked elastomer material, such as scrap tire rubber, is devulcanized by subjecting the material to a mechanical mixing process in the presence of 0.5 to 2% by wt. of an organic catalyst having a thiol terminus.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: March 18, 2014
    Assignee: New Rubber Technologies Holdings, Inc.
    Inventor: James F. Fisher
  • Patent number: 8618190
    Abstract: A latex marking ink suitable for marking rubber articles has been developed. The ink comprises vulcanizable rubber latex, pigment, vulcanizing agent, and non-ionic stabilizer dispersed in water. Shear stability is dramatically and unexpectedly increased by the presence of the non-ionic stabilizer even though viscosity also increases.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: December 31, 2013
    Assignee: PolyOne Corporation
    Inventors: Heather E. Burik, Steve White
  • Patent number: 8592515
    Abstract: Pneumatic rubber tire with a component comprised of a silica reinforced rubber composition comprised of specialized polybutadiene rubber, functionalized styrene/butadiene elastomer and cis 1,4-polyisoprene rubber.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: November 26, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: William Paul Francik, John Joseph Andre Verthe, Junling Zhao, George Frank Balogh, Christin Louise Alwardt
  • Patent number: 8584720
    Abstract: Annular tire overlay (11) for drawing onto the rolling surface of tires (40), which has a tread (17) on its outside and a gripping surface (15) on its inside, which tire overlay (11) is so designed that contact between the rolling surface of the tire (40) and the surfacing of the road is prevented by the tire overlay (11) when the tire overlay has been drawn onto a tire. The said tire overlay (11) is provided with a flange (21) which stops the tire overlay (11) from shifting in the axial direction of the wheel. Advantageously, the tire overlay is additionally stiffened by a flange (21) of planar form to keep the contact area on the surface below small.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: November 19, 2013
    Inventor: Alexandre Hayot
  • Patent number: 8578983
    Abstract: This invention relates to a tire having at least one rubber component which contains a cast, extruded, or calendered film of syndiotactic polybutadiene polymer. The syndiotactic polybutadiene polymer film is integral with the surface of the rubber component in a sense of being co-cured therewith. Such film may be added directly to the tire during the building process or involve a separate process of producing a tire component as a composite of the film and a rubber composition (rubber component) prior to the tire building stage. Such composite can be as is or partially pre-cured before being applied in the tire building process. The syndiotactic polybutadiene polymer film is provided to promote both stability and age durability for the tire component.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: November 12, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Paul Harry Sandstrom
  • Publication number: 20130284861
    Abstract: A wheel assembly is disclosed, the wheel assembly including a rigid wheel including a radially outer rim wall presenting a polygonal shape with a plurality of outermost vertices connecting a plurality of planar faces, and a flexible tire mounted on the outer rim wall. The tire is supported by the vertices of the rim wall and is separated from the rim faces by a space, portions of the tire located between the vertices being configured to flex inwardly when subject to ground engaging pressure.
    Type: Application
    Filed: April 25, 2012
    Publication date: October 31, 2013
    Applicant: LINDSAY CORPORATION
    Inventors: Thomas J. Korus, Jochen Pfrenger
  • Patent number: 8544515
    Abstract: Negative Poisson's ratio (NPR) or auxetic are used to make lightweight wheels and runflat tires. The NPR tires can be tailored and functionally-designed to optimally meet the runflat requirements for both military and commercial vehicles. NPR-runflat tires may be fabricated using standard materials and simple manufacturing processes, resulting in low-cost and high-volume production. In preferred embodiments the runflat tire designs are fully compatible with Central Tire Inflation Systems (CTIS), while providing a performance equivalent to current military vehicle solutions but at half the weight. An auxetic wheel according to the invention comprises a line defining an axis of rotation; and a plurality of concentric rings of unit cells surrounding the axis, each unit cell being constructed of a plurality of members defining a Negative Poisson's Ratio (NPR) structure.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: October 1, 2013
    Assignee: MKP Structural Design Associates, Inc.
    Inventors: Zheng-Dong Ma, Yuanyuan Liu, Xiaoming Liu, Ce Sun, Yushun Cui
  • Publication number: 20130192960
    Abstract: A method of manufacturing a rubber-metal composite, the method including a process of bringing a metal material into contact with a buffer solution having a pH of from 5 to 7.2, followed by a process of causing the metal material and rubber to adhere to each other.
    Type: Application
    Filed: September 22, 2011
    Publication date: August 1, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Shinichi Toyosawa
  • Patent number: 8470897
    Abstract: A process for devulcanizing crosslinked elastomer particles comprising applying an alternating electric field to a composition comprising crosslinked elastomer particles under compression. The alternating electric field preferably has a frequency between 1 and 100 MHz and a voltage between 1000 and 10,000 V, and may be applied between an apparatus that continuously conveys the particles through the field.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: June 25, 2013
    Assignee: Vertex L.L.C.
    Inventor: Michel Marc
  • Patent number: 8453694
    Abstract: The present invention relates to a pneumatic rubber tire having an integral innerliner of a rubber composition comprised of a combination of cis 1,4-polyisoprene rubber and medium to high vinyl styrene/butadiene rubber together with compatible resin.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: June 4, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Bruce Raymond Hahn
  • Publication number: 20130112324
    Abstract: A vehicle tyre is described, which includes a rubber mass and a radiofrequency transponder. The rubber mass has a joining zone in a circumferential direction on an inner face of the tyre. The radiofrequency transponder forms an angle (?) with the joining zone about a main axis of the tyre, with the angle (?) being greater than or equal to 90°.
    Type: Application
    Filed: July 5, 2011
    Publication date: May 9, 2013
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Claudio Battocchio
  • Patent number: 8367766
    Abstract: A tire with a rubber containing component compound of a copolymer rubber having pendant hydroxyl groups; and a non-sulfur containing silane.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: February 5, 2013
    Inventors: Georges Marcel Victor Thielen, Frank Schmitz
  • Publication number: 20130025751
    Abstract: A sensor device adapted to be associated with a vehicle wheel includes a package enclosing at least one sensor and an electronic data processing apparatus and at least one antenna arranged on the package for at least one among the wireless transmission of data generated by the electronic apparatus and the wireless reception of data to be provided to the electronic apparatus. The at least one antenna is shaped to adhere to surfaces of the package.
    Type: Application
    Filed: April 7, 2011
    Publication date: January 31, 2013
    Applicants: POLITECNICO DI TORINO, PIRELLI TYRE S.P.A.
    Inventors: Gianluca Dassano, Ladislau Matekovits, Mario Orefice, Guillermo Vietti
  • Patent number: 8357726
    Abstract: A process for devulcanizing crosslinked elastomer particles comprising applying an alternating radio frequency dielectric field to a composition comprising crosslinked elastomer particles. The alternating radio frequency dielectric field preferably has a frequency between 1 and 100 MHz and a voltage between 1000 and 10,000 V.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: January 22, 2013
    Assignee: Vertex L.L.C.
    Inventor: Michel Marc
  • Patent number: 8338544
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of polymerizing monomer to form a reactive polymer, and reacting the reactive polymer with a protected polyoxime compound.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: December 25, 2012
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Patent number: 8329788
    Abstract: The present invention includes rubber compositions, rubber articles and tires formulated to prevent ozone attack. A particular embodiment of the present invention includes a tire comprising a rubber structure, the rubber structure comprising an essentially unsaturated rubber elastomer, between 0.1 and 0.45 phr (parts by weight per hundred parts by weight of the rubber elastomer) of a particular compound 2,4,6-Tris-(N-1,4-dimethylpentyl-p-phenylenediamino)-1,3,5-triazine and between 0.5 and 2 phr of a phenolic resin.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: December 11, 2012
    Assignee: Michelin Recherche et Technique S.A.
    Inventor: Mark J. Pender
  • Publication number: 20120298268
    Abstract: There are provided a method and a device to suppress the formation of a flat spot or to lessen the extent of a flat spot in a tire of a vehicle such as automobile by applying to a belt of the tire on a ground contact area of the tire a bending moment in the direction that the opposite sides of the belt are directed outward in the radial direction of the tire to suppress the formation of a deflection due to the compression of a carcass cord on the tire ground contact area In order to apply such a bending moment, a projection member narrower than the tread of the tire is disposed on the surface touching the tire of a vehicle when it is stopped or parked, pressing the tread of the tire.
    Type: Application
    Filed: March 19, 2010
    Publication date: November 29, 2012
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masashi Igarashi, Ikuo Kushiro
  • Publication number: 20120273101
    Abstract: A pneumatic tire is provided with a decoration portion at a tire side portion. The decoration portion includes decoration elements, which include ridges, and gullies, which are inclined with respect to the tire circumferential direction and divide the decoration elements into at least two regions. Thus, the gullies make the ridges non- continuous in the tire circumferential direction. The ridges include first ridges and second ridges that are smaller than the first ridges in one or both of height and width. At least some of the first ridges are inclined with respect to the tire circumferential direction and are adjacent to one another. Thus, the gullies are formed between the adjacent first ridges.
    Type: Application
    Filed: November 18, 2010
    Publication date: November 1, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Sotaro Iwabuchi
  • Patent number: 8288474
    Abstract: Alkoxy-modified silsesquioxane compounds are described. The alkoxy-modified silsesquioxane compounds contain an alkoxysilane group that participates in an alkoxysilane-silica reaction as a silica dispersing agent in rubber, with the release of zero to about 0.1% by weight of the rubber of volatile organic compounds (VOC), especially alcohol, during compounding and further processing. Further described are methods for making alkoxy-modified silsesquioxanes, methods for making vulcanizable rubber compounds containing alkoxy-modified silsesquioxanes, vulcanizable rubber compounds containing alkoxy-modified silsesquioxanes, and pneumatic tires comprising a component that contains alkoxy-modified silsesquioxanes.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: October 16, 2012
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Chenchy Jeffrey Lin, Terrence E. Hogan, Ashley S. Hilton
  • Publication number: 20120234441
    Abstract: A heavy vehicle tire tread constituted from a material based upon a rubber composition, the composition comprising, per 100 parts by weight of elastomer, between 35 and 60 phr of a solution polymerized styrene-butadiene rubber having a styrene content of between 10 wt. % and 35 wt. % and between 35 and 60 phr of a polybutadiene. The composition may further include between 45 and 110 phr of silica and between (1.94×10?3/n)(S) and (2.55×10?3/n)(S) moles of a sulfur-containing organosilicon compound as a silane coupling agent per 1 kg of the silica, wherein n is a number of silicon atoms in a molecule of the silane coupling agent and S is a CTAB surface area in m2/g of the silica. The rubber composition may be cured with a sulfur curing system comprising a sulfenamide accelerator and between 0.3 and 0.8 phr of free sulfur, wherein a ratio of the sulfenamide accelerator and the sulfur is between 2 and 7.
    Type: Application
    Filed: April 29, 2009
    Publication date: September 20, 2012
    Inventors: Jeremey J. Mehlem, Jesse J. Arnold
  • Publication number: 20120227879
    Abstract: Tire having a visible surface comprising patterns contrasting with said surface, said pattern comprising, over the entire surface thereof, a plurality of tufts distributed with a density of at least five tufts per mm2 or a plurality of blades which are substantially parallel to one another and arranged with a pitch of less than 0.5 mm, each tuft having a mean cross section having a diameter of between 0.03 mm and 0.5 mm or each blade having a mean width of between 0.03 mm and 0.5 mm, characterized in that the walls of the tufts or of the blades have, over at least one quarter of the area thereof, a mean roughness Rz of between 5 ?m and 30 ?m.
    Type: Application
    Filed: September 9, 2010
    Publication date: September 13, 2012
    Applicants: Michelin Recherche et Technique S.A., Societe Technologie Michelin
    Inventors: Olivier Muhlhoff, Jean-Claude Desvignes
  • Patent number: 8258207
    Abstract: Blends of carbon black or other fillers is described. The blends of carbon black or other fillers are preferably pre-blended prior to introducing the blend into a product such as an elastomeric or polymeric product.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: September 4, 2012
    Assignee: Cabot Corporation
    Inventor: Gregory T. Gaudet
  • Patent number: 8242193
    Abstract: Rubber mixtures containing at least one rubber and an organosilicon compound of the general formula (I) (Q-)kG-Si(—O—CX1X2—CX1X3—)3N. The rubber mixture is prepared by mixing at least one rubber and an organosilicon compound of the formula (I). The rubber mixtures can be used for the production of moldings.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: August 14, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Karsten Korth, Andre Hasse, Susann Witzsche, Oliver Klockmann, Philipp Albert
  • Publication number: 20120180919
    Abstract: The invention concerns a tire (10) comprising a tread (40) provided with a rolling surface, at least one recess (90) being formed in the tread, which recess opens onto the rolling surface, the recess being delimited by a bottom wall (91) and one single side wall (92), the tire also comprising at least one appliqué (100; 1001-1002) comprising at least one portion of a color other than black, and the appliqué being inserted into the recess and fixed by means of an adhesive (110) to at least a portion of said bottom or side wall, in such a way that the portion of a color other than black of the appliqué is visible from a viewpoint outside of the tread and facing the appliqué. The invention also concerns a method and a kit for decorating a tire.
    Type: Application
    Filed: March 17, 2010
    Publication date: July 19, 2012
    Applicants: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Arnaud Larregain, Olivier Mhulhoff
  • Publication number: 20120145301
    Abstract: Sufficient strength of a joint portion is secured in a tire configured by joining together plural tire structuring members formed from a thermoplastic material. A welding thermoplastic material 43 that has been melted is extruded towards joining locations on two tire halves 17A formed from a first thermoplastic material that have been aligned so as to face each other and abut, such that the one tire half 17A and the other tire half 17A are welded together with the welding thermoplastic material 43. Degradation of the thermoplastic material forming the tire halves 17A is suppressed since the tire halves 17A are not themselves melted, and sufficient strength of the joint portion is secured.
    Type: Application
    Filed: August 20, 2010
    Publication date: June 14, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yoshihide Kouno, Seiji Kon
  • Patent number: 8183316
    Abstract: Disclosed herein is a rubber composition comprising a rubber and particulate kaolin clay as a filler wherein: the kaolin particles have a particle size distribution such that at least about 95% of the particles, relative to the volume of the particles, have a particle diameter less than 3?m. The particulate kaolin particles may comprise calcined kaolin chosen from at least one of particulate soak calcined kaolin and particulate flash calcined kaolin. The rubber composition can comprise additional particulate fillers including those chosen from silica, carbon black, and other particulate fillers. Also disclosed herein is a process for producing such a composition, and the method of using a cured form of the composition in a rubber composition, such as a vehicle tire composition.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: May 22, 2012
    Assignee: Imerys Minerals Limited
    Inventors: Howard Goodman, Andrew Riley