Characterized By Chemical Composition Or Physical Properties Of External Sidewall Materials Patents (Class 152/525)
  • Patent number: 11590801
    Abstract: The present invention relates to a composition for a non-pneumatic tire spoke. In particular, the non-pneumatic tire spoke prepared from the composition for a non-pneumatic tire spoke has excellent mechanical properties. A composition for a non-pneumatic tire spoke includes a thermoplastic polyester elastomer, a silane-based interfacial binder, and silica particles. The silica particles have an average particle diameter of 100 to 300 ?m.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: February 28, 2023
    Assignees: Kumho Tire Co., Inc., Korea Advanced Institute of Science and Technology
    Inventors: Kee Woon Kim, Gwi Seong Shin, Chul Woo Kwark, Soon Wook Hwang, Bumjoon Kim, Jin-Seong Kim, Joonhyeong Choi, Sung Keun Park
  • Patent number: 11554609
    Abstract: A tire has an outer sidewall, said outer sidewall comprising a rubber composition based on at least one or more diene elastomers, an anti-ozone wax in a content of greater than 8 phr, a reinforcing filler in a content of between 30 and 75 phr, a plasticizer that is liquid at 23° C. in a content of between 5 and 40 phr, and a crosslinking system. This composition has the advantage of being highly resistant to external physical attacks.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: January 17, 2023
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Aurélie Triguel
  • Patent number: 11306199
    Abstract: A shaped article is formed from a cured rubber composition comprising EPDM and a diene rubber. The shaped article exhibits a coefficient of friction greater than 0.1.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: April 19, 2022
    Assignee: The Pullman Company
    Inventors: Jeanette Pilarski, Joshua R. Goossens
  • Patent number: 11098180
    Abstract: Provided are a rubber composition for tires that provides a balanced improvement of snow and ice performance and abrasion resistance, and a tire including the rubber composition. The rubber composition for tires contains: a rubber component including an isoprene-based rubber and BR; silica; and a terpene-based resin having a softening point of 60-150° C., an ?-pinene unit content of 65-100% by mass, a ?-pinene unit content of 0-35% by mass, and a limonene unit content of 10% by mass or lower, the rubber component including, based on 100% by mass thereof, 5-80% by mass of the isoprene-based rubber and 5-80% by mass of the BR, with a combined amount of the isoprene-based rubber and the BR of 60% by mass or more, the rubber composition containing, per 100 parts by mass of the rubber component, 1-500 parts by mass of the silica and 0.1-100 parts by mass of the terpene-based resin.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: August 24, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Mikako Yoshioka, Haruko Sawaki, Takahiro Mabuchi
  • Patent number: 11065916
    Abstract: A pneumatic vehicle tire has a nominal tire cross-sectional height H of at most 110 mm, bead regions with bead cores, a radial carcass which runs around the bead cores in the bead regions axially on the inside to axially on the outside forming carcass turn-ups, and side wall regions, which each have a wing profile and a side wall profile. The wing profiles are the only rubber components extending in contact with the radial carcass in the radially outer region of the side wall region. The carcass turn-ups end at a radial height (h1), determined from a base line, of 15 mm to 65 mm. At least in a region between a radial height (h2) of 29% of the nominal side wall height and a radial height (h3) of at least 80% of the height H, the wing profiles are the only rubber components that extend outside the radial carcass.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: July 20, 2021
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Stefan Habicht, Werner Holste
  • Patent number: 10913838
    Abstract: A method for producing a tire sidewall rubber member according to an embodiment comprises: a first kneading step of preparing a first kneaded product by kneading a diene rubber, carbon black, a compound represented by formula (I) (wherein R1 and R2 represent a hydrogen atom, an alkyl group, an alkenyl group or an alkynyl group, and M+ is Na+, K+ or Li+), and zinc oxide; and a second kneading step of adding wax and/or stearic acid to the first kneaded product, followed by kneading. Thus, low heat generation properties are improved while suppressing the deterioration of tear resistance.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: February 9, 2021
    Assignee: TOYO TIRE CORPORATION
    Inventor: Akie Kurihara
  • Patent number: 10843425
    Abstract: A process for producing tyres with auxiliary components for vehicle wheels is described. The process includes i) covering the external surface of an expandable chamber for tyre vulcanisation and moulding apparatuses with a first substantially cross-linkable polysiloxane composition and ii) covering the radially inner surface of the impermeable elastomeric material layer of the green tyre with a second substantially non-cross-linkable polysiloxane composition. An expandable chamber for tyre vulcanisation and moulding apparatuses and, a process for treating the expandable chamber are also described.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: November 24, 2020
    Assignee: PIRELLI TYRE S.P.A.
    Inventors: Albert Berenguer, Luca Castellani, Riccardo Miceli
  • Patent number: 10829622
    Abstract: The present invention relates to a cross-linkable rubber composition, a cross-linked rubber composition obtained by cross-linking such a rubber composition, a method of preparing a tire and a tire. A cross-linkable rubber composition comprises, per hundred parts by weight of rubber (phr): 100 phr of a diene-based elastomer component with an average molecular weight Mn in a range of ?100000 to ?5000000 g/mol and a homopolymer of polybutadiene, wherein the homopolymer of polybutadiene has an average molecular weight Mn in a range of ?10000 to ?45000 g/mol and a glass transition temperature Tg in a range of ??110° C. to ??60° C.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: November 10, 2020
    Assignee: APOLLO TYRES GLOBAL R&D B.V.
    Inventors: Swarupini Ganesan, Sander Marinus, Hendrik Stevens
  • Patent number: 10777338
    Abstract: A process for manufacturing finished wire and cable having reduced coefficient of friction and pulling force during installation, includes providing a payoff reel containing at least one internal conductor wire; supplying the at least one internal conductor wire from the reel to at least one extruder; providing the least one extruder, wherein the at least one extruder applies an insulating material and a polymerized jacket composition over the at least one internal conductor wire, wherein the polymerized jacket composition comprises a predetermined amount by weight of nylon; and at least 3% by weight of a silica providing a cooling device for lowering the temperature of the extruded insulating material and the polymerized jacket composition and cooling the insulating material and the polymerized jacket composition in the cooling device; and, reeling onto a storage reel the finished, cooled, wire and cable for storage and distribution.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: September 15, 2020
    Assignee: ENCORE WIRE CORPORATION
    Inventors: William T. Bigbee, Jr., Stephen S. Griffin
  • Patent number: 10594256
    Abstract: A photovoltaic thermal collector is provided with: glasses disposed on both a sunlight receiving surface side and an opposite surface side thereto; a hot-water producing portion and a power generating portion. An olefinic rubber sealing member (A) is disposed on at least one surface side of a power generating element of the power generating portion, and an olefinic rubber sheet (B) including carbon black is disposed on an opposite surface side thereto. In addition, a resin pipe as a channel of the hot-water producing portion is made of cross-linked polyethylene or polybutene; the resin pipe is sandwiched in the olefinic rubber sheet (B); and the olefinic rubber sheet (B) is further disposed in a side portion of the resin pipe and in a gap between one resin pipe and another resin pipe.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: March 17, 2020
    Assignee: Nisshinbo Mechatronics Inc.
    Inventor: Hidenari Nakahama
  • Patent number: 10525770
    Abstract: The embodiments described herein generally relate to an electronic communication module suitable for incorporating into a tire or tire retread, where the electronic communication module comprises a radio device having at least a portion of its outer surface surrounded by a rubber composition. Certain embodiments also relate to tires or tire retreads containing the electronic communication module. In addition, certain embodiments relate to methods for improving the readability of a radio device incorporated into a tire or tire retread.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: January 7, 2020
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Craig R. Balnis, Amy M. Randall, Paul B. Wilson
  • Patent number: 10428218
    Abstract: The invention relates to a pneumatic tire for a vehicle a method for manufacturing such tire, wherein the tire comprises a metal component, a textile component and a cured rubber based component bonded together by means of curing, and wherein the cured rubber based component comprises lignin that has been treated by hydrothermal carbonization. The invention further relates to use of lignin that has been treated by hydrothermal carbonization in a rubber based component of a pneumatic tire.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: October 1, 2019
    Assignee: Nokian Renkaat Oyj
    Inventors: Mika Lahtinen, Anne Ojala, Harri Myllymaa, Harri Moisio, Noora Kemppainen
  • Patent number: 10280281
    Abstract: Processes for forming a vulcanizable elastomeric formulation are disclosed. The processes include the steps of mixing an elastomer with a vulcanizing agent to form a vulcanizable elastomeric formulation that includes the vulcanizing agent dispersed in the elastomeric compound, wherein the vulcanizing agent includes a cyclododecasulfur compound. A process for forming a vulcanized elastomeric article is also described.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: May 7, 2019
    Assignee: Eastman Chemical Company
    Inventors: Scott Donald Barnicki, Frederick Ignatz-Hoover, Robert Thomas Hembre, Andrew Neil Smith, Henk Kreulen, Aruna M. Velamakanni
  • Patent number: 10138361
    Abstract: The present invention provides a rubber composition capable of improving fuel economy and wet grip performance while maintaining good processability, abrasion resistance and handling stability or improving them, as well as a pneumatic tire including the rubber composition. The rubber composition contains carbon black, silica, and a polymer mixture obtained by modifying a polymer derived from a conjugated diene compound and/or an aromatic vinyl compound with a compound containing an ester group and/or a carboxyl group, the polymer mixture having a weight average molecular weight of from 1.0×103 to 1.0×105, the rubber composition having a tan ? peak temperature of ?20° C. or higher, a rubber hardness of from 63 to 75, and a tan ? at 70° C. of from 0.15 to 0.45.
    Type: Grant
    Filed: July 4, 2013
    Date of Patent: November 27, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Daisuke Sato
  • Patent number: 10118273
    Abstract: A polishing head of a CMP apparatus includes a polishing pad, an air bag brought into contact with a rear surface of a wafer on the polishing pad and configured to press a front surface of the wafer against the polishing pad, and a top ring surrounding the air bag and the wafer. A portion of the air bag brought into contact with a peripheral portion of the wafer is thicker in film thickness than a portion of the air bag brought into contact with a central portion of the wafer. The polishing head is capable of applying even pressure to press down the wafer evenly throughout the entire wafer plane to improve the evenness of polishing.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: November 6, 2018
    Assignee: ABLIC Inc.
    Inventor: Sukehiro Yamamoto
  • Patent number: 9580249
    Abstract: The present invention relates to a conveyor belt which is comprised of a carry cover layer, a reinforcement layer which is situated below the carry cover layer, and a pulley cover layer which is situated below the reinforcement layer, wherein the carry cover layer is comprised of neodymium polybutadiene rubber.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: February 28, 2017
    Assignee: Veyance Technologies, Inc.
    Inventors: Mayu Si, Heng-Huey Yang, Watudura Prabodha Upul Silva, Michael K. Stockdale, Thomas George Burrowes
  • Patent number: 9567454
    Abstract: The invention provides rubber compositions for tire inner layers, capable of providing excellent ozone resistance over a wide environmental temperature range and of preventing discoloration well, as well as pneumatic tires including such compositions. The invention relates to a rubber composition for tire inner layers, containing C20-C32 normal alkanes. Preferably, the combined amount of the C20-C32 normal alkanes is 0.1-2.5 parts by mass, and the combined amount of phenylenediamine and quinone antioxidants is 0-4 parts by mass, each per 100 parts by mass of the diene rubber component. The rubber composition for tire inner layers preferably contains C48 and higher normal alkanes in a combined amount of not more than 0.1 parts by mass per 100 parts by mass of the diene rubber component. The rubber composition preferably contains not more than 15 parts by mass of process oil per 100 parts by mass of the diene rubber component.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: February 14, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya Miyazaki
  • Patent number: 9561963
    Abstract: A method for making a composite carbon nanotube structure is introduced. The method includes the following steps. A carbon nanotube structure and a polymer are provided. The polymer and the carbon nanotube structure are composited together. The composite carbon nanotube structure composited with polymer and the carbon nanotube is then graphitized.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: February 7, 2017
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Kai Liu, Kai-Li Jiang, Ying-Hui Sun, Shou-Shan Fan
  • Patent number: 9440405
    Abstract: A tire marking apparatus and tire marking method capable of placing multiple, differently colored marks on a tire sidewall. The apparatus includes a frame assembly that movably mounts a stamping bar assembly carrying a plurality of stamping bar elements, each stamping element selectively movable into a marking position and a plurality of tape cassettes, each of which may carry tape of a different color. Each tape cassette is selectively movable into a tire marking position. An actuator advances a portion of an aligned tape cassette towards a tire marking region on the sidewall and moves an aligned stamping element into printing contact with the tire sidewall. This movement transfers material from the tape to the tire sidewall in a pattern that corresponds to indicia defined by the stamping element. The frame assembly includes an intermediate frame that is shiftable between at least two positions.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: September 13, 2016
    Assignee: Micro-Poise Measurement Systems, LLC
    Inventors: Richard R. Matuszny, Jack Perecman, Shaun Immel, Marek J. Kos
  • Patent number: 9394426
    Abstract: Elastomer composition comprising at least one elastomer and at least one vegetable oil derivative selected from one or more of: a. mixture of triglycerides comprising one or more of the following oligomeric structures: R4[OC(O)R1C(O)OCH2CH(OR2)CH2]nOR3 and said mixture of triglycerides having a Numerical Average Molecular Weight (Mn) of between 800 and 10,000, b. triglycerides of one or more long chain carboxylic acids including at least one carboxylic acid containing adjacent hydroxyl groups, c. esters of polyols with at least a monocarboxylic acid and at least a dicarboxylic acid, the said esters being other than triglycerides.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: July 19, 2016
    Assignee: Novamont S.p.A.
    Inventors: Catia Bastioli, Luigi Capuzzi, Paolo Magistrali, Sebastia Gesti′ Garcia, Gian Tommaso Viola, Giuseppe Savini, Fabio Bacchelli
  • Patent number: 9393719
    Abstract: A pneumatic tire has an outer surface with an arithmetical mean roughness Ra in the range of 0.1 ?m to 0.6 ?m when a reference length Lr is 20 ?m, wherein the outer surface has an irregularity diameter in the range of 40-230 ?m and an irregularity depth in the range of 3-22 ?m. A method of manufacturing a tire vulcanization mold includes propelling spherical abrasive grains onto the surface of the mold under the condition that a propelling pressure is in the range of 0.1-0.6 MPa, so as to process the surface of the mold.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: July 19, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Koji Ikemura
  • Patent number: 9290052
    Abstract: A tire includes a tread portion, a pair of opposing sidewall portions, and a pair of shoulder portions each arranged between the tread portion and one of the sidewall portions, wherein at least on one side of the tire the sidewall and shoulder portions comprise at least a first rubber compound and a second rubber compound, the second rubber compound having a material composition different from that of the first rubber compound.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: March 22, 2016
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jaap Leendertse, Wolfgang Karl Maegerle, Dirk Van Eck, Michael Hoelzel
  • Patent number: 9284129
    Abstract: A conveyor belt apparatus (10) is provided with a wear measuring device (12) that measures an amount of wear of a surface (11a) of a conveyor belt (11) on which transport material has been loaded, and with a revolution counting device (14) that counts a number of revolutions of the conveyor belt (11).
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: March 15, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Toshiki Sakaguchi
  • Patent number: 9272583
    Abstract: A tire 2 includes beads 10, a carcass 12, and an insert 18. The carcass 12 includes a carcass ply 36. An inner part 34a of each bead 10 includes an inner core 46a and an inner apex 48a that extends almost outward of the inner core 46a in the radial direction. An outer part 34b of each bead 10 includes an outer core 46b and an outer apex 48b that extends almost outward of the outer core 46b in the radial direction. A ratio of a complex elastic modulus Ea of the inner apex 48a to a complex elastic modulus Eb of the outer apex 48b is less than or equal to 0.3. A ratio of the complex elastic modulus Ea to a complex elastic modulus Ec of the insert 18 is greater than or equal to 1.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: March 1, 2016
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hiroshi Ito
  • Patent number: 9254721
    Abstract: Provided is a base tire securing cut resistance while retaining rolling resistance performance of the tire and a tire built on such a base tire. A base tire includes a base rubber which forms the outer periphery of the base tire to which a tread rubber is applied, a pair of mini side rubbers, each protecting the axial edge of the base rubber, and a pair of outer rubber layers, each overlapping the axially outer side of the mini side rubber.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: February 9, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Yukihiro Takada
  • Patent number: 9085735
    Abstract: Methods are disclosed for producing synthetic fuel from carbon-containing polymeric feedstock using a select catalyst mixture.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: July 21, 2015
    Assignee: American Fuel Producers, LLC
    Inventor: Jose M. Rodriguez
  • Patent number: 9056928
    Abstract: A process for preparing a copolymer of an acyclic conjugated diene and a cyclic conjugated diene using a polymerization catalyst system comprising a transition metal compound or a lanthanide metal compound, an alkylating agent, and an inorganic halide alcoholate, and rubber compositions and tires comprising the same. The copolymer contains at least 90% acyclic conjugated diene monomer, has a number average molecular weight of between 40,000 and 300,000, and has a cis-bond content of at least 92%.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: June 16, 2015
    Assignee: Bridgestone Corporation
    Inventors: Zengquan Qin, Eiju Suzuki
  • Publication number: 20150119491
    Abstract: A rubber composition includes a diene rubber containing at least a polybutadiene rubber produced by use of a rare earth element based catalyst; a carbon black in an amount of 10 to 99 parts by mass for 100 parts by mass of the diene rubber; and a dihydrazide compound in an amount of 0.1 to 5.0 parts by mass for the same.
    Type: Application
    Filed: June 12, 2014
    Publication date: April 30, 2015
    Applicant: TOYO TIRE & RUBBER CO., LTD.
    Inventor: Kazuya Hirabayashi
  • Patent number: 9016340
    Abstract: The present invention includes a run-flat tire 1 comprising a plurality of turbulence generation ridges 20 which extend on a surface of a tire side portion 3 in a tire-radial direction and which are arranged at a pitch in a tire-circumferential direction and relationship Si>So is satisfied. Si is the sum of sidewall areas of all the turbulence generation ridges located at the inner side, in the tire-radial direction, of a maximum width position of the pneumatic tire. So is the sum of sidewall areas of all the turbulence generation ridges located at the outer side, in the tire-radial direction, of the tire maximum width position.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: April 28, 2015
    Assignee: Bridgestone Corporation
    Inventors: Makoto Tsuruta, Masashi Yamaguchi, Atsushi Miyasaka
  • Publication number: 20150096654
    Abstract: The subject invention is directed towards tire components which are comprised of rubber compositions which are comprised of (1) about 2 phr to about 45 phr of a trans-1,4-isoprene-butadiene copolymer which has about 4 weight percent to about 16 weight percent butadiene repeat units and from about 84 weight percent to about 96 weight percent isoprene repeat units, wherein the trans-1,4-isoprene-butadiene copolymer has a Mooney ML 1+4 viscosity which is within the range of about 35 to about 80; and (2) about 55 phr to about 98 phr of at least one other elastomer, preferably a diene based elastomer. The most preferred tire components are those which contain cord reinforcements and require adequate green strength to enhance the tire building and shaping process to maintain cord integrity in the final cured tire.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Paul Harry Sandstrom, Xiaoping Yang, Kuo-Chih Hua, James Joseph Golden, Daniel Ray Beha
  • Publication number: 20150083296
    Abstract: A tire includes a tread formed in a crown region of the tire and sidewall regions extending from the crown region to bead areas. The tire further includes a toroidal element extending across a crown region of the tire, and further extending along at least a portion of each sidewall region of the tire. The toroidal element has a central region located between inner and outer regions. The central region is more elastic than the inner and outer regions.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 26, 2015
    Inventor: Robert Asper
  • Patent number: 8962730
    Abstract: The present invention is directed to a self-healing rubber composition comprising a functionalized elastomer comprising: a polymeric backbone chain derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer; and a functional group bonded to the backbone chain, the functional group comprising a multidentate ligand capable of complexing with a metal ion; and a partitioned metal ion. The invention is further directed to a pneumatic tire comprising the self-healing rubber composition.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: February 24, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Ralf Mruk, Christian Jean-Marie Kaes, Robert Fokko Roskamp
  • Publication number: 20150041038
    Abstract: A pneumatic tire is provided with a carcass layer and a sidewall rubber disposed on an outer side in a tire width direction of the carcass layer. Additionally, the pneumatic tire is provided with a resin coating applied on a predetermined region of a sidewall portion. Additionally, a minimum value of a wall thickness t of a rubber of the sidewall portion in the region applied with the resin coating is in a range of 0.05 mm?t?4.0 mm. Additionally, a thickness of the resin coating is in a range of 20 ?m or more and 300 ?m or less.
    Type: Application
    Filed: February 20, 2013
    Publication date: February 12, 2015
    Inventors: Atsushi Tanno, Jun Matsuda
  • Patent number: 8939184
    Abstract: A tire sidewall may be formed from a composition including a rubber component and a non-ionic surfactant.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: January 27, 2015
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: David G. Abdallah, Jr., Jamie J. McNutt
  • 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
  • Publication number: 20150013872
    Abstract: The present invention provides a pneumatic tire having excellent durability. Provided is a pneumatic tire including a sidewall and a carcass, the sidewall being produced from a rubber composition for a sidewall which has a specific sulfur content, the carcass being produced from a carcass cord covered with a rubber composition for a carcass topping, and the sulfur contents of the rubber composition for a sidewall and the rubber composition for a carcass topping satisfying a specific relationship. Provided is a pneumatic tire including a clinch and a carcass, the clinch being produced from a rubber composition for a clinch which has a specific sulfur content, the carcass being produced from a carcass cord covered with a rubber composition for a carcass topping, and the sulfur contents of the rubber composition for a clinch and the rubber composition for a carcass topping satisfying a specific relationship.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya MIYAZAKI
  • Publication number: 20140360645
    Abstract: The present invention provides a tire including a side portion (104), a black rubber layer (113), a stain-preventing rubber layer (112) disposed adjacent to the black rubber layer, and a colored layer (111) disposed on the surface of the stain-preventing rubber layer and exposed on the outer surface of the side portion; a tire including a colored layer (207) disposed on the outer surface of the tire, and an underlayer rubber (208) disposed on the tire-interior side of the colored layer, wherein the colored layer is formed by curing a UV-curable paint; and a tire including a colored layer (302) on the surface of the side portion (301) of the tire, wherein the colored layer includes a marking (303).
    Type: Application
    Filed: January 8, 2013
    Publication date: December 11, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takashi Sakamoto, Takahiro Miura, Daisuke Nakagawa
  • Publication number: 20140332136
    Abstract: Disclosed is a heavy duty tire exhibiting satisfactory anti-cut resistance and low heat generation property, as well as excellent resistance to crack growth toward inside of the tire. This invention is characterized by a tire side portion (2) containing a rubber composition that includes 0.1-30 parts by mass of an orientation material oriented in a circumferential direction of the tire, per 100 parts by mass of a rubber component. The tire side portion (2) has an average thickness (G) of 8 mm-150 mm.
    Type: Application
    Filed: December 10, 2012
    Publication date: November 13, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Takeshi Yamada
  • Publication number: 20140326386
    Abstract: Provided is a pneumatic tire ensuring conductivity while being reduced in weight, and having good fuel efficiency and handling stability. The tire includes a sidewall and a carcass, the sidewall including a laminate of two or more rubber layers including an inner sidewall layer (1) located closest to the carcass, and an outer sidewall layer (2) constituting an outer surface of the tire; the layer (1) including a rubber composition for (1); the layer (2) including a rubber composition for (2); the carcass including a carcass cord topped with a rubber composition for a carcass cord topping (3); the sidewall having a thickness of 3.0 mm or less; the layer (1) having a thickness of 0.2-1.0 mm; the composition for (1) having a volume resistivity of 5.0×107 ?·cm or less; the compositions for (1) and for (2), and the compositions for (3) and for (1) satisfying specific relations.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 6, 2014
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Daisuke SATO
  • Patent number: 8875764
    Abstract: The present invention provides a pneumatic tire having excellent durability. Provided is a pneumatic tire including a sidewall and a carcass, the sidewall being produced from a rubber composition for a sidewall which has a specific sulfur content, the carcass being produced from a carcass cord covered with a rubber composition for a carcass topping, and the sulfur contents of the rubber composition for a sidewall and the rubber composition for a carcass topping satisfying a specific relationship. Provided is a pneumatic tire including a clinch and a carcass, the clinch being produced from a rubber composition for a clinch which has a specific sulfur content, the carcass being produced from a carcass cord covered with a rubber composition for a carcass topping, and the sulfur contents of the rubber composition for a clinch and the rubber composition for a carcass topping satisfying a specific relationship.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 4, 2014
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Tatsuya Miyazaki
  • Patent number: 8869854
    Abstract: A pneumatic tire is disclosed having a label affixed to a plurality of whiskers extending from the outer sidewall of the tire. The whiskers may be T shaped. The label may be colored.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: October 28, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Samuel Patrick Landers, Max Harold Dixon, Frank Helmut Bucher
  • Patent number: 8869855
    Abstract: In order to improve ride quality and steering stability, the present invention provides a pneumatic tire having a sidewall made of a rubber composition for a sidewall comprising at least a natural rubber and a diene rubber comprising a syndiotactic 1,2-polybutadiene, wherein rubber sheets obtained by extruding at a thickness of at most 1.5 mm the rubber composition for a sidewall with a complex modulus E*a in a tire circumferential direction measured at a temperature of 70° C. and a dynamic distortion of 2% of 3 to 15 MPa are laminated.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: October 28, 2014
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Takuya Horiguchi
  • Patent number: 8865803
    Abstract: The invention relates to a rubber composition for a tire, containing an isoprene-based rubber and a compound represented by formula (1) below, wherein an amount of the isoprene-based rubber is at least 70% by mass; and an amount of the compound represented by formula (1) is 0.5-6 parts by mass per 100 parts by mass of the rubber component. The invention also relates to a rubber composition for a tire, containing an alkylphenol-sulfur chloride condensate and a compound represented by formula (1) below, wherein an amount of the alkylphenol-sulfur chloride condensate is 0.4-6 parts by mass, and an amount of the compound represented by formula (1) is 0.5-6 parts by mass, each per 100 parts by mass of a rubber component of the rubber composition: wherein R1 represents a C2-C16 alkyl group; and R2 represents a C3-C16 alkyl, benzothiazolyl-sulfide, or cycloalkyl group.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: October 21, 2014
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Tatsuya Miyazaki
  • Publication number: 20140299249
    Abstract: A tire includes an external sidewall, having improved airtightness. The external sidewall includes at least one rubber composition comprising at least one or more diene elastomers at a total content of 1 to 99 phr, one or more thermoplastic elastomers having a polyisobutylene block at a total content of 1 to 99 phr, optionally a reinforcing filler at a content of 0 to 120 phr, and a crosslinking system.
    Type: Application
    Filed: December 5, 2012
    Publication date: October 9, 2014
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Emmanuel Custodero, Marc Greiveldinger, Cyrille Guery
  • Patent number: 8821664
    Abstract: A pneumatic tire provided with a resin film at an outer surface of the tire side portion to be able to be exfoliated therefrom by pasting a smooth resin film having a melting point equal to or higher than 23° C., a Young's modulus equal to or larger than 2.5 GPa and a thickness of 10 through 150 ?m to an outer surface of a side portion of an unvulcanized tire and vulcanizing and molding the unvulcanized tire in a state of pasting the resin film.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: September 2, 2014
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventor: Norihiko Nakamura
  • Patent number: 8813803
    Abstract: To provide a pneumatic tire by which rolling resistance is reduced while cracking resistance in side wall portions is maintained. A foam rubber layer 6 extending in a tire radial direction is disposed in at least a portion of the side wall portion 3. Heat conductivity at 23° C. of the foam rubber layer 6 is from 0.05 to 0.20 W/mK, a tan ? at 60° C. is not more than 0.17, and an expansion ratio Q is from 50 to 160%.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: August 26, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Jun Matsuda, Tomoyuki Sakai
  • Publication number: 20140202609
    Abstract: An object of the present invention is to provide a rubber composition for a sidewall having excellent conductivity, anti-spew cutting property and extrusion processability in good balance and assuring low production cost. The present invention provides a rubber composition for a sidewall comprising 2 to 15 parts by mass of a wet processed silica having a BET specific surface area of 70 to 250 m2/g and 40 to 62 parts by mass of a carbon black having a BET specific surface area of 37 to 125 m2/g based on 100 parts by mass of a diene rubber component, wherein the rubber composition does not contain a silane coupling agent, and has a volume resistivity of not more than 1×108 ?·cm.
    Type: Application
    Filed: May 30, 2012
    Publication date: July 24, 2014
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya Miyazaki
  • Publication number: 20140144566
    Abstract: The present invention provides a pneumatic tire having an excellent finished bonding surface between the tread and its adjacent wing or sidewall while maintaining required performance of a tire such as abrasion resistance and resistance to degradation over time. The present invention relates to a pneumatic tire including a tread and a wing or sidewall adjacent to the tread, wherein the tread is formed from a rubber composition for a tread which has a specific net sulfur content derived from crosslinking agents; the wing or sidewall is formed from a rubber composition for a wing or sidewall which has a specific net sulfur content derived from crosslinking agents; and a specific relationship is satisfied between the net sulfur content derived from crosslinking agents in the rubber composition for a tread and the net sulfur content derived from crosslinking agents in the rubber composition for a wing or sidewall.
    Type: Application
    Filed: November 12, 2013
    Publication date: May 29, 2014
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya MIYAZAKI
  • Patent number: 8720511
    Abstract: A run flat tire which comprises a ply layer (4) disposed extending toroidally between a pair of bead cores and comprising ply coating rubber and ply cords, an inner liner layer (5) disposed circumferentially at an inner side of the ply layer, side reinforcing rubber layers (6) having an approximately crescent-shaped cross section and disposed in side portions of the tire between the ply layer and the inner liner layer and rubber sheets (7) disposed extending at interface of the ply layer and the side reinforcing rubber layer, wherein relations of t90>tp10 and t10<ts90 are satisfied when characteristic values of vulcanization obtained in accordance with JIS K6300-2 are represented by tp10 and tp90 for the ply coating rubber, ts10, and ts90 for the side reinforcing rubber and t10 and t90 for the rubber for a sheet.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: May 13, 2014
    Assignee: Bridgestone Corporation
    Inventor: Fumihiro Shiraishi
  • Patent number: 8708013
    Abstract: A pneumatic tire comprising a body, a tread, a pair of bead assemblies disposed in the lower section of the body, where said bead assemblies include a bead core and a bead filler, and a pair of sidewalls, where the bead assemblies and pair of sidewalls include vulcanizated rubber, and where at least one of said bead assemblies, or at least one of said sidewalls, or both said bead assemblies and sidewalls include short fibers.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: April 29, 2014
    Assignee: Bridgeston Americas Tire Operations, LLC
    Inventors: Katharine M. Cowger, Richard J. Wright, John P. Rodak, Carolyn W. Bernstorf