Tread Patents (Class 152/209.1)
  • Patent number: 10703837
    Abstract: The present invention is directed to a method of making a functionalized elastomer, comprising the step of polymerizing a conjugated diene monomer in the presence of a lanthanide-based coordination polymerization catalyst activated with a functionalized aluminum reagent of formula 1 where R is a linear or branched alkane group containing 1 to 8 carbon atoms, and R1 is phenylene, or a linear or branched alkane diyl group containing 2 to 10 carbon atoms, or a combination of one or more phenylene groups and one or more linear or branched alkane diyl groups containing 1 to 10 carbon atoms; Q is of formula 2 where R3 and R4 are independently phenyl or a linear or branched alkyl group containing 1 to 10 carbon atoms, or R3 and R4 taken together with the nitrogen atom represent a nitrogen containing heterocyclic group containing from 4 to 12 carbon atom.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: July 7, 2020
    Inventors: Stefan Mecking, Margaret Flook Vielhaber, Inigo Göttker-Schnetmann, Philip Kenyon
  • Patent number: 10682889
    Abstract: A tire for an autonomous vehicle includes a pair of sidewalls that extend to a ground-engaging tread. The tread includes a plurality of hexagonally-shaped tread elements, and the tire includes an outer diameter that is at least four times larger than a width of the tread. Selected hexagonally-shaped tread elements may be formed with features to increase traction on icy roads.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: June 16, 2020
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Sebastien Willy Fontaine, Armand Rene Gabriel Leconte, Frederic Ngo
  • Patent number: 10675917
    Abstract: A tire comprises center blocks 4 comprising a first center lateral groove 5A and a second center closed sipe 6a opposed to each other in a tire axial direction, and a second center lateral groove 5B and a first center closed sipe 6b axially opposed to each other. Lengths thereof satisfy the followings: LA/LA0?½, LB/LB0?½, Lb/Lb0 in a range of from ? to ?, La/La0 in a range of from ? to ?, LA<La, (LA+La)<LA0, LB<Lb, and (LB+Lb)<LB0. The center blocks 4 comprise a high rigidity region extending continuously between penetrating sipes 3 and between a first imaginary line passing through terminating ends of the first center lateral groove and the first center closed sipe and a second imaginary line passing through terminating ends of the second center lateral groove and the second center closed sipe.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: June 9, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Aya Wakizono, Hiroshi Yamaoka
  • Patent number: 10662318
    Abstract: Provided in the present invention is a rubber composition for tires which is improved in a dispersibility of silica in a rubber blended with a large amount of silica having so far made it difficult to be kneaded with the rubber and which makes it possible to carry out simultaneously using silica having a large particle diameter and blending a large amount of silica. Used in the present invention is a rubber composition for tires comprising a natural rubber and/or diene base rubber component, a glycerin fatty acid ester composition containing glycerin fatty acid monoester, and silica, wherein a BET specific surface area of the silica is 100 m2/g or more and 130 m2/g or less, and the rubber composition for tires contains 80 parts by mass or more of the silica based on 100 parts by mass of the rubber component.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: May 26, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Yasushi Yamagishi
  • Patent number: 10603957
    Abstract: A tire tread is provided that in an unworn state includes one or more tread features having a layer of a relatively softer, higher grip rubber material. This layer is formed from a first rubber composition that is provided as a skim or relatively thin layer at the contact surface of the tread feature. This skim provides the grip needed as the tire starts to warm up but can then wear away after an initial period of use so that the contact surface is eventually formed from a second rubber composition. This second rubber composition, in turn, provides the desired level of grip and acceptable wear at the higher temperatures that occur as the tire heats up from use. The layer of skim can be profiled depending upon the application and performance characteristics needed.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: March 31, 2020
    Assignee: Compagnie Generale Des Etablissements Michelin
    Inventors: Walter Lee Willard, Jr., John Christopher Church
  • Patent number: 10570623
    Abstract: A temporary tread insert and method for installation in a stairway framework during building construction. The temporary tread insert includes an insert body having an upper tread surface, a bottom surface and opposed side surfaces. A front end of the insert body has a substantially bullnose shaped curved surface. The upper tread surface has a notched surface extending along the upper tread surface. Also disclosed is the method of inserting the temporary tread insert into the stair pan of a stairway framework, where the stair pan includes a bullnose at a front end of the stair pan, and the bullnose has a portion extending laterally a distance into the stair pan. The temporary tread insert includes a notched surface.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: February 25, 2020
    Assignee: Protex Products LLC
    Inventors: Brad Wells, William A. Depel
  • Patent number: 10538045
    Abstract: A method and apparatus for molding non-pneumatic wheels is provided. The exemplary method and apparatus allow for the use of the same molding system to manufacture wheels with different hub constructions. Different configurations of removable mold elements are utilized within the same molding system to provide wheels with different hub constructions.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: January 21, 2020
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: Robert Gaut, Brian D. Wilson, Karl Mohrmann
  • Patent number: 10500903
    Abstract: In a pneumatic tire, land portions have a plurality of sipes and at least one row of land portions in an inner side region is provided with sipes having a 3D structure. Also, the snow traction index (STI) with respect to the tire circumferential direction throughout the entire tread portion is in the range of 100?STI. Also, the sipe component (STI_s_out) of the snow traction index (STI) in an outer side region and the sipe component (STI_s_in) of the snow traction index (STI) in the inner side region have the relationship of 1.1?STI_s_in/STI_s_out. Also, the peripheral length ratio PLR_out of the three-dimensional structure portion in the outer side region and the peripheral length ratio PLR_in of the three-dimensional structure portion in the inner side region have the relationship of 1.1?PLR_in/PLR_out.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: December 10, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Kohtaro Matsushita
  • Patent number: 10500901
    Abstract: A motorcycle pneumatic tire includes a tread portion including a crown region, a pair of middle regions and a pair of shoulder regions upon a tread development width of the tread portion being divided equally into five regions. The tread portion is provided with a pair of circumferentially and continuously extending crown main grooves within the crown region to include a tire equator therebetween and a plurality of inclined grooves each extending from the crown region to the shoulder region in each side of the tire equator without communicating with the crown main grooves. Each of the inclined grooves includes a straight portion extending straightly in the middle region and an arc portion extending in an arc shape in the shoulder region while increasing an angle with respect to a circumferential direction of the tire axially outwardly.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: December 10, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Takuro Matsumoto
  • Patent number: 10493801
    Abstract: Provided are a cap tread rubber composition for cold weather tires enabling a balanced improvement in fuel economy, abrasion resistance, performance on ice/snow, and high-speed performance on snow-/ice-free cold roads, and a cold weather tire formed from the same. The rubber composition contains: a rubber component including BR, SBR, and NR and/or IR; and a filler, the composition having a combined amount of NR, IR, and BR of 80% by mass or more, an amount of BR of 30% by mass or more, and an amount of SBR of 0.3-10% by mass, each per 100% by mass of the rubber component, the filler including 60% by mass or more of silica per 100% by mass of the filler, the composition containing, per 100 parts by mass of the rubber component, 50 parts by mass or more of a fine particle silica having a N2SA of 190 m2/g or more.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 3, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yuka Yokoyama, Shuichiro Ono
  • Patent number: 10494511
    Abstract: Provided is a rubber composition containing a diene rubber including a styrene-butadiene copolymer component including at least one type of styrene-butadiene copolymer and a reinforcing filler. The bonded styrene content is from 5 to 50 wt. %. The total amount of styrene of an ozone decomposed component S1 including one styrene-derived unit and an ozone decomposed component S1V1 including one styrene-derived unit and one 1,2-bonded butadiene-derived unit is less than 80 wt. % of the amount of bonded styrene. The total amount of styrene of the decomposed component S1V1 is not less than 10 wt. % of the amount of bonded styrene. The integrated intensity of an ozone decomposed component S1V2 including one styrene-derived unit and two 1,2-bonded butadiene-derived units is not less than 15% of the integrated intensity of all decomposed components including styrene-derived units. The vinyl content of a butadiene portion is not less than 20% and less than 50%.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: December 3, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Yuko Sekine, Makoto Ashiura, Ryosuke Sakai, Fumito Yatsuyanagi
  • Patent number: 10494510
    Abstract: Provided are a rubber composition for tires that achieves a balanced improvement in fuel economy, abrasion resistance, and performance on ice, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires containing predetermined amounts of natural rubber, polybutadiene rubber, silica, and a silane coupling agent represented by a specific formula.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: December 3, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Seiji Hatano, Yuka Yokoyama
  • Patent number: 10494512
    Abstract: A rubber composition contains a diene rubber including a styrene-butadiene copolymer component including a styrene-butadiene copolymer and a reinforcing filler. (1) The bonded styrene content is from 5 to 50 wt. %. (2) The total amount of styrene of an ozone decomposed component S1 including one styrene-derived unit and an ozone decomposed component S1V1 including one styrene-derived unit and one 1,2-bonded butadiene-derived unit is less than 80 wt. % of the amount of bonded styrene. The total amount of styrene of the decomposed component S1V1 is less than 10 wt. % of the amount of bonded styrene. (3) The integrated intensity of an ozone decomposed component S1V2 including one styrene-derived unit and two 1,2-bonded butadiene-derived units is less than 15% of the integrated intensity of all decomposed components including styrene-derived units. (4) The vinyl content of a butadiene portion is not less than 20% and less than 50%.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: December 3, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Yuko Sekine, Makoto Ashiura, Ryosuke Sakai, Fumito Yatsuyanagi
  • Patent number: 10487197
    Abstract: The present technology provides a rubber composition containing a diene rubber including a styrene-butadiene copolymer component including at least one type of styrene-butadiene copolymer and a reinforcing filler. The bonded styrene content is from 5 to 50 wt. %. The total amount of styrene of an ozone decomposed component S1 including one styrene-derived unit and an ozone decomposed component S1V1 including one styrene-derived unit and one 1,2-bonded butadiene-derived unit is less than 80 wt. % of the amount of bonded styrene. The total amount of styrene of the decomposed component S1V1 is not less than 10 wt. % of the amount of bonded styrene. The integrated intensity of an ozone decomposed component S1V2 including one styrene-derived unit and two 1,2-bonded butadiene-derived units is less than 15% of the integrated intensity of all decomposed components including styrene-derived units. The vinyl content of a butadiene portion is not less than 50%.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: November 26, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Yuko Sekine, Makoto Ashiura, Ryosuke Sakai, Fumito Yatsuyanagi
  • Patent number: 10487198
    Abstract: A rubber composition contains a diene rubber containing a styrene-butadiene copolymer component including a styrene-butadiene copolymer and a reinforcing filler. (1) The content of bonded styrene is from 5 to 50 wt. %. (2) The total content of styrene of an ozone decomposed component S1 including one styrene-derived unit and an ozone decomposed component S1V1 including one styrene-derived unit and one 1,2-bonded butadiene-derived unit is less than 80 wt. % of the amount of bonded styrene. The total content of styrene of the decomposed component S1V1 is less than 10 wt. % of the amount of bonded styrene. (3) The integrated intensity of an ozone decomposed component S1V2 including one styrene-derived unit and two 1,2-bonded butadiene-derived units is not less than 15% of the integrated intensity of all the decomposed components including styrene-derived units. (4) The vinyl content of a butadiene portion is not less than 20% and less than 50%.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: November 26, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Yuko Sekine, Makoto Ashiura, Ryosuke Sakai, Fumito Yatsuyanagi
  • Patent number: 10479142
    Abstract: A pneumatic tire is provided in the tread portion with zigzag middle main grooves 4 and shoulder main grooves 5 to define middle land regions 7 therebetween. The middle main groove is composed of alternately-arranged, oppositely-inclined long first oblique segments 11 and short second oblique segments 12. The middle land regions are provided with middle transverse grooves 20 shallower than the middle main grooves. The first oblique segments are inclined axially outwardly toward the opposite direction to the intended tire rotational direction R. The middle transverse grooves are inclined to the same direction as the first oblique segments or in parallel with the tire axial direction. The axially inner end of each of the middle transverse grooves is connected to one of the second oblique segments so as to include at least a part of an axially outwardly protruding outside corner portion 4A of the middle main groove.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: November 19, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Takashi Ishibashi
  • Patent number: 10464377
    Abstract: A winter tire includes a tread portion with a ground contact surface. The ground contact surface of the tread portion is provided with a recess. The recess is provided with a hole for fixing a stud pin and at least one projection extending radially outwardly and arranged at a location apart from the hole.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: November 5, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Shotaro Abe
  • Patent number: 10464378
    Abstract: A run-flat radial tire having a tire cross-section height of 115 mm or greater including: a carcass spanning between a pair of bead portions; a vehicle mounting direction outer side side-reinforcing rubber layer that is provided to a tire side portion at a vehicle mounting direction outer side and that extends in a tire radial direction along an inner face of the carcass; and a vehicle mounting direction inner side side-reinforcing rubber layer that is provided to a tire side portion at a vehicle mounting direction inner side and that extends in the tire radial direction along an inner face of the carcass, a tire radial direction outer side end portion of the vehicle mounting direction inner side side-reinforcing rubber layer being closer to a tire equatorial plane than a tire radial direction outer side end portion of the vehicle mounting direction outer side side-reinforcing rubber layer.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: November 5, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Masafumi Yokoyama
  • Patent number: 10457798
    Abstract: The present invention is directed to a pneumatic tire comprising a tread, the tread comprising a rubber composition comprising a diene elastomer, silica, a blocked mercaptosilane, a traction resin, and a low molecular weight polybutadiene functionalized with a hydroxyl functional group.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: October 29, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Antonia Felicitas Broemmel, Julia Martine Francoise Claudine Tahon, Timo Benjamin Korfmann, Lisa Mailaender, Christian Jean-Marie Kaes
  • Patent number: 10442917
    Abstract: A rubber composition for a tire tread is a rubber composition containing from 66 to 110 parts by weight of a filler containing not less than 50 wt. % of a silica per 100 parts by weight of a diene rubber containing not less than 40 wt. % of a terminal-modified styrene-butadiene rubber, from 8 to 35 wt. % of a natural rubber, and from 15 to 40 wt. % of a butadiene rubber; the terminal-modified styrene-butadiene rubber having a terminal functional group derived from a compound reacting with silanol groups; a styrene unit content thereof being from 38 to 48 wt. %; an oil-extended oil content thereof being less than 30 wt. %; a ratio (BR/NR) of a compounded amount of the butadiene rubber (BR) to the natural rubber (NR) being more than 1.0 and not more than 2.5; and an embrittlement temperature of the rubber composition being not more than ?45° C.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: October 15, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Miyuki Nakajima
  • Patent number: 10442250
    Abstract: A pneumatic tire includes a tread which has designated direction to be mounted on a vehicle and has an inner tread edge on vehicle inner side and an outer tread edge on vehicle outer side when mounted on a vehicle. The tread has main grooves, and lateral grooves extending in direction crossing the main grooves. The lateral grooves include inner and outer middle-lateral grooves. The inner middle-lateral grooves include first and second inner middle-inclined grooves inclining in directions opposite with respect to each other and formed alternately with the first inner middle-inclined grooves. The outer middle-lateral grooves include first and second outer middle-inclined grooves inclining in directions opposite with respect to each other and formed alternately with the first outer middle-inclined grooves. The total number of the first and second outer middle-inclined grooves is set to be less than the total number of the first and second inner middle-inclined grooves.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: October 15, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES LTD.
    Inventor: Tatsuya Sasaki
  • Patent number: 10436401
    Abstract: The present disclosure discloses a light-emitting diode (LED) lamp and an electronic candle lamp, which comprise a baseplate, a plurality of groups of lamp bodies, a lamp shade and a controlling device. The plurality of groups of lamp bodies are disposed on the baseplate, and each group of the lamp bodies respectively comprises a plurality of LEDs arranged in a matrix form; the lamp shade is disposed on the baseplate and has the plurality of groups of lamp bodies nested therein; and the controlling device is electrically connected to the plurality of groups of lamp bodies to control part of the LEDs in each group of the lamp bodies to emit light so that the electronic candle lamp presents a candlelight effect with flickering flames. The LED lamp and the electronic candle lamp of the present disclosure are electronically controlled to realistically simulate the candlelight effect with flickering flames.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: October 8, 2019
    Assignee: ATAKE DIGITAL TECHNOLOGY (SHENZHEN) CO., LTD.
    Inventor: Kuo-Tsai Lee
  • Patent number: 10400089
    Abstract: A method of making a polymer with stable Mooney viscosity and molecular weight is described. A conjugated diolefin is reacted in a hydrocarbon solvent in the presence of an initiator to form a polymer. After forming the polymer, alkoxy silane terminal functionalizing groups are bonded to the polymer. A stabilizing agent having the formula (R)4-nSi(OH)n wherein R is a C1 to C18 alkyl, C1 to C18 alkyl group containing a heteroatom such as nitrogen or oxygen, C4 to C8 cycloalkyl, or C6 to C18 aromatic group is then added to the polymer, optionally in the presence of hydrocarbon oil. The polymer is then desolvatizing, resulting in a polymer with stable Mooney viscosity and molecular weight, even over prolonged periods of time. Compositions and articles containing the polymer are also described.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: September 3, 2019
    Assignee: Firestone Polymers, LLC
    Inventors: Mark N. DeDecker, Joseph P. Padolewski, James H. Pawlow
  • Patent number: 10392497
    Abstract: Vulcanizates with desirable properties can be obtained from compositions incorporating polymers that include hydroxyl group-containing aryl functionalities, silica or other particulate filler(s) that contain or include oxides of silicon and a group or compound that can act to covalently bond the filler particles and the polymer. The group can be provided as a substituent of the filler particle, or a discreet compound can be provided in the composition.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: August 27, 2019
    Assignee: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Zengquan Qin, Xiao-Dong Pan
  • Patent number: 10392501
    Abstract: A rubber mix for tires including at least one cross-linkable polymer base, a reinforcing filler, a vulcanization system, a reinforcing resin and a dithiol chemical according to the formula SHRSH, wherein, in the formula, R is an aliphatic or aromatic group composed of 3 to 12 atoms.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: August 27, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Giancarlo Cossu, Pasquale Agoretti
  • Patent number: 10384492
    Abstract: A tire includes a circumferential tread having a tread element disposed thereon, wherein the tread element includes a top surface that defines a first plane. The tire further includes at least one substantially helicoid-shaped sipe disposed in the tread element. The substantially helicoid-shaped sipe is defined by an opening in the top surface extending in a first direction in the first plane when the tire is new, and is further defined by a base extending in a second direction in a second plane parallel to the first plane. The second direction is disposed at an angle between 45° and 135° with respect to the first direction.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: August 20, 2019
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Hans R. Dorfi, Jacob R. Kidney, Robert W. Asper
  • Patent number: 10385192
    Abstract: This invention relates to a tire with tread for promoting a combination of cold weather service at low temperatures and wet traction. The tread is of a rubber composition containing cis 1,4-polybutadiene and dual styrene/butadiene elastomers with reinforcing filler comprised of pre-hydrophobated precipitated silica and rubber reinforcing carbon black. The tread rubber composition may contain triglyceride vegetable oil such as soybean oil.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: August 20, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Lauren Elizabeth Brace
  • Patent number: 10364342
    Abstract: This invention relates to a tire with tread for promoting a combination of cold weather service at low temperatures and wet traction. The tread is of a rubber composition containing cis 1,4-polybutadiene and dual styrene/butadiene elastomers with reinforcing filler comprised of pre-hydrophobated precipitated silica and rubber reinforcing carbon black. The tread rubber composition may contain triglyceride vegetable oil such as soybean oil.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: July 30, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Lauren Elizabeth Brace
  • Patent number: 10336889
    Abstract: The present invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr), 100 phr of a diene based elastomer having a glass transition temperature less than ?50° C.; from 30 to 65 phr of a fatty acid monoester of formula 1 where R1 is selected from C1 to C8 linear or branched alkyl, C1 to C8 linear or branched alkenyl, and C2 to C6 linear or branched alkyl substituted with from one to five hydroxyl groups; R2 is C11 to C21 alkyl or C11 to C21 alkenyl; less than 10 phr of a petroleum-derived oil; and from 50 to 130 phr of silica.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: July 2, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Nihat Ali Isitman, Luisa Fernanda Munoz Mejia, Claude Charles Jacoby
  • Patent number: 10301567
    Abstract: A method of lubricating an expandable rubber bladder is described for use during a vulcanization of a green tire within a metal press. The method can include applying compositions in the form of emulsions of silicone oils to the inner surface of the green tires and/or to the outer surface of the vulcanization bladders to facilitate the molding-demolding thereof during the manufacture of the tires.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: May 28, 2019
    Assignee: ELKEM SILICONES FRANCE SAS
    Inventors: Stefan Breunig, Gérald Guichard, Jérôme Bordas
  • Patent number: 10226966
    Abstract: The present invention provides: a pneumatic radial tire for a passenger car, the tire having cross sectional width SW and outer diameter OD satisfying a predetermined relationship formula when the tire is assembled with a rim and inflated at internal pressure of at least 250 kPa; a tire-rim assembly formed by assembling bead portions of said tire with the rim; and a method for using a tire, including preparing a pneumatic radial tire for a passenger car in which cross sectional width SW and outer diameter OD of the tire satisfy a predetermined relationship formula, and using the tire at internal pressure of at least 250 kPa.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: March 12, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Isao Kuwayama, Shintaro Hatanaka, Hiroyuki Matsumoto
  • Patent number: 10131189
    Abstract: A pneumatic tire includes: a plurality of land portions; and in at least one land portion of the plurality of land portions, a sipe extending in the tread width direction, of which ends open at the circumferential grooves or the tread ends. The sipe has at least one bent portion extending continuously in the extending direction of the sipe from one of the end regions of the sipe to the other end region in the depth direction of the sipe. The at least one bent portion is located on the outer side in the tire radial direction in the center region than in the end regions.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: November 20, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Kentaro Saeki
  • Patent number: 10125244
    Abstract: The invention relates to a rubber composition containing diene based elastomer(s) coupled with a silica coupler in situ in the rubber composition to a precipitated silica which is partially pre-hydrophobated with an alkylsilane comprised of an alkoxyalkylsilane, its preparation and to a tire containing a component comprised of such rubber composition.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: November 13, 2018
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Bruce Raymond Hahn, George Jim Papakonstantopoulos
  • Patent number: 10059825
    Abstract: This invention relates to a process for the preparation of a silica-treated functionalized resin composition comprising the steps of reacting a polymer backbone with a hydrosilylation agent to produce a silane-functionalized resin composition, wherein the polymer backbone is selected from at least one of dicyclopentadiene (DCPD)-based polymers, cyclopentadiene (CPD)-based polymers, DCPD-styrene copolymers, C5 homopolymers and copolymer resins, C5-styrene copolymer resins, terpene homopolymer or copolymer resins, pinene homopolymer or copolymer resins, C9 homopolymers and copolymer resins, C5/C9 copolymer resins, alpha-methylstyrene homopolymer or copolymer resins, and combinations thereof; and mixing the silane-functionalized resin composition with a silica to produce a silica-treated functionalized resin composition.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: August 28, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David T. Harris, Ian C. Stewart, Olivier J. Georjon, Edward J. Blok
  • Patent number: 10059782
    Abstract: This invention relates to a process for the preparation of a silane-functionalized resin composition comprising the steps of mixing a polymer backbone, a silane, and a free radical initiator; and producing a silane-functionalized resin composition. The polymer backbone is selected from at least one of dicyclopentadiene (DCPD)-based polymers, cyclopentadiene (CPD)-based polymers, DCPD-styrene copolymers, C5 homopolymers and copolymer resins, C5-styrene copolymer resins, terpene homopolymer or copolymer resins, pinene homopolymer or copolymer resins, C9 homopolymers and copolymer resins, C5/C9 copolymer resins, alpha-methylstyrene homopolymer or copolymer resins, and combinations thereof.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: August 28, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Edward J. Blok, Ian C. Stewart, David T. Harris
  • Patent number: 10023723
    Abstract: A process for preparing a rubber composition comprises: (a) forming a mixture of: (i) at least one thiocarboxyl-functional hydrolyzable silane, (ii) at least one rubber containing carbon-carbon double bonds, (iii) at least one silane-reactive filler, (iv) at least one activating agent, and (v) water; (b) mixing the composition formed in step (a) under reactive-mechanical-working conditions and in the absence of vulcanizing agent(s); (c) adding at least one vulcanizing agent (vi) to the composition of step (b); (d) mixing the composition of step (c) under non-reactive-mechanical-working conditions; and, (e) optionally, curing the rubber composition of step (d).
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: July 17, 2018
    Assignee: Momentive Performance Materials Inc.
    Inventors: Ping Jiang, Robert James Perry
  • Patent number: 10017612
    Abstract: A rubber composition obtained by dry-mixing a rubber wet masterbatch A containing a carbon black A having a nitrogen adsorption specific: surface area (N2SA) of NA (m2/g) with a rubber wet masterbatch B containing a carbon black B having a nitrogen adsorption specific surface area (N2SA) of NB (m2/g), wherein the content ratio of the rubber wet masterbatch A to the rubber wet masterbatch B is from 5/95 to 40/60, and when the content proportion of the carbon black A in the rubber wet masterbatch A is represented by LA, and that of the carbon black B in the rubber wet masterbatch B is represented by LB, the specific expressions are satisfied.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: July 10, 2018
    Assignee: TOYO TIRE & RUBBER CO., LTD.
    Inventors: Makoto Tanaka, Kenji Nomura, Norio Minouchi
  • Patent number: 9902206
    Abstract: In order to suppress the dimensions and mass of an aircraft tire from becoming uneven around the tire circumferential direction, an aircraft tire includes: a belt layer provided further to a tire radial direction outside than a carcass; and a sheet shaped belt protection member that is wound around a tire circumferential direction TC between a tread section and the belt layer, and that includes incision portions incised along a tire width direction TW, with the incision portions formed at uniform intervals around the tire circumferential direction TC.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: February 27, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Tomotaka Sakiyama
  • Patent number: 9902796
    Abstract: Provided are core-shell structured polymer particles capable of enhancing abrasion resistance, rolling resistance and wet slip resistance of rubber while improving mechanical properties such as tensile strength and tensile elongation, a rubber composition including the same, and a molded rubber article, for example, a tire, prepared therefrom. Such core-shell structured polymer particles are capable of enhancing abrasion resistance (lifespan property), rolling resistance (fuel efficiency performance) and wet slip resistance (brake performance) while providing excellent mechanical properties to rubber. Accordingly, the molded rubber article, for example, a tire, prepared from the rubber composition including the core-shell structured polymer particles is capable having an excellent lifespan property, fuel efficiency performance and brake performance while exhibiting excellent mechanical properties.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: February 27, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Yoon Ho Kim, Geon Soo Kim, Sang Il Nam
  • Patent number: 9889708
    Abstract: A pneumatic tire with five land parts formed by four circumferential main grooves wherein middle land parts each include a first sub groove and a second sub groove that are formed independently and arranged alternately in the tire circumferential direction on two sides of the middle land part in the tire width direction, the first sub groove being formed by the lug groove having one end thereof opening to one of the circumferential main grooves and the other end terminating in the middle land part, the second sub groove being formed by the lug groove having one end thereof opening to one of the circumferential main grooves and the other end terminating in the middle land part, and the middle land part further includes a concave part on a wall on an outer side of the middle land part in the tire width direction and spaced by each sub groove.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: February 13, 2018
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Masatoshi Kuriyama
  • Patent number: 9846954
    Abstract: Tire treads having improved traction properties while surprisingly still maintaining good material cohesion properties, the tire treads comprising a rubber composition based upon a highly unsaturated diene elastomer and between 95 phr and 160 phr of an inorganic reinforcing filler. The composition may further include between 60 phr and 130 phr of a plasticizing system made up of a plasticizing resin having a Tg of at least 25° C. and a plasticizing liquid. The rubber composition is cured with an ultra-efficient sulfur curing system having a sulfur to accelerator weight ratio adjusted between 0.02 and 0.2 to provide the rubber composition with an MA300/G* ratio of greater than 1.7, wherein the elongation modulus MA300 at 300% is measured at 23° C. and the shear modulus G* is measured at 60° C.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 19, 2017
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: Ramond Stubblefiled, Xavier Saintigny, William Marshall Thompson, Elizabeth L Holaling
  • Patent number: 9751992
    Abstract: The invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler comprising at least carbon black having a CTAB specific surface of greater than or equal to 130 m2/g, a plasticizing oil and also a crosslinking system, the dispersion of the filler in the elastomeric matrix having a Z score of greater than or equal to 70.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: September 5, 2017
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Marc Sevignon, Cécile Belin
  • Patent number: 9742720
    Abstract: Identifying recipients to receive communication based on content selection may be provided. An indication of content selected by a user is received. The content may be part of group communication that is communicated among users via an online communication application. The content and an author of the content are identified. One or more criteria may be applied to the content to determine the recipients of the communication. The communication may be transmitted as a single message to the recipients simultaneously.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: August 22, 2017
    Assignee: International Business Machines Corporation
    Inventors: Alaa Abou Mahmoud, Paul R. Bastide, Fang Lu
  • Patent number: 9724968
    Abstract: To provide a multilayer structure that may adhere to rubber material without the necessity of providing an adhesive layer, an inner liner and a pneumatic tire using the multilayer structure. According to the present invention, a multilayer structure 1 is formed by alternately laminating elastomer layers 3 containing thermoplastic elastomer and barrier layers 2 containing a gas barrier resin, wherein an outermost layer 4 laminated uppermost among layers constituting the multilayer structure 1 contains an elastomer component that may heat-adhere to diene rubber.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: August 8, 2017
    Assignees: BRIDGESTONE CORPORATION, Kuraray Co., Ltd.
    Inventors: Hideki Kitano, Tetsuo Amamoto, Takatsugu Tanaka, Yuwa Takahashi, Nahoto Hayashi, Masao Hikasa, Yusuke Tanaka
  • Patent number: 9718931
    Abstract: A method of making a polymer with stable Mooney viscosity and molecular weight is described. A conjugated diolefin is reacted in a hydrocarbon solvent in the presence of an initiator to form a polymer. After forming the polymer, alkoxy silane terminal functionalizing groups are bonded to the polymer. A dialkoxysilane stabilizing agent is then added to the polymer in combination with a base material. The polymer is then desolvatizing, resulting in a polymer with stable Mooney viscosity and molecular weight, even over prolonged periods of time. Compositions and articles containing the polymer are also described.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: August 1, 2017
    Assignee: Firestone Polymers, LLC
    Inventors: Kenji Nakatani, Mark N. DeDecker, Joseph P. Padolewski, James H. Pawlow
  • Patent number: 9707804
    Abstract: By adopting an appropriate block pattern, a pneumatic tire guarantees the tire ground contact area without impairing drainage performance and enhances on-ice performance. On the tread are formed land portions (5a, 5b) defined by at least one circumferential main groove (3) extending in the tire circumferential direction and blocks (11) in a shoulder land portion (5b) located outermost in the tire width direction among the land portions (5a, 5b), the blocks (11) being defined by narrow grooves (7a, 7b) with a groove width narrower than that of the circumferential main groove (3) and by at least one auxiliary groove (9) with a groove width that increases outward in the tire width direction at least in a region not adjacent to the circumferential main groove. The area of the tread surface of each of the blocks (11) is in a range of 100 mm2 to 200 mm2.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: July 18, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Naoya Ochi
  • Patent number: 9676235
    Abstract: A tire 1 according to the present invention comprises: a circumferential groove 12 formed in a tread portion; a land portion 22 divided by the circumferential groove 12; and transverse grooves formed in the land portion. The transverse grooves comprise a first transverse groove 32 dividing the land portion into several blocks, and a second transverse groove 51 dividing a block 42 divided by the first transverse groove into a first block portion 61 and a second block portion 62. A groove depth of the circumferential groove contacting the second block is smaller than the groove depth of the circumferential groove contacting the first block.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: June 13, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Shinpei Sugiyasu, Takamitsu Nakamura
  • Patent number: 9663639
    Abstract: The present invention is a rubber composition for tire treads, of which the temperature of the peak position of the temperature curve of tan ? is ?16.0° C. or higher and ?6.0° C. or lower, tan ? at the peak position is larger than 1.13, tan ? at 0° C. is 0.95 or more, and the value obtained by dividing the absolute value of the difference between tan ? at ?5° C. and tan ? at 5° C. by the temperature difference between ?5° C. and 5° C. {|(tan ? at ?5° C.)?(tan ? at 5° C.)|/10} (/° C.) is smaller than 0.045/° C. The invention provides the rubber compositions for tire treads that more highly satisfy both low-heat-generation property and wet braking performance.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: May 30, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Keisuke Kawashima
  • Patent number: 9630455
    Abstract: A pneumatic tire for rough terrain comprises a tread portion provided with a plurality of blocks, the blocks comprising a plurality of center blocks arranged in a center region of the tread portion, a plurality of shoulder blocks arranged along each tread edge of the tread portion and a plurality of middle blocks arranged between the center region and the shoulder blocks, each of the center blocks, middle blocks and shoulder blocks comprising a top face and a sidewall face extending radially inward from the peripheral edge of the top face, wherein at least one of the middle blocks and shoulder blocks is a U-shaped block having a lateral slot which extends from an axially outer sidewall face of the block to an axially inner end thereof being terminated within the block.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: April 25, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES LTD.
    Inventor: Hiroshi Yamaoka
  • Patent number: 9624359
    Abstract: The invention relates to a functionalized diene elastomer composed: a) of a diene elastomer functionalized, at the chain end or in the middle of the chain, by a tin functional group, exhibiting a monomodal distribution of molecular weights before functionalization and a polydispersity index before functionalization of less than or equal to 1.3, b) of a diene elastomer star-branched with a tin compound, exhibiting a monomodal distribution of molecular weights before star-branching and a polydispersity index before star-branching of less than or equal to 1.3, and c) of a content of less than 15% by weight, with respect to the total weight of the functionalized diene elastomer, of a non-tin-functional diene elastomer, the said diene elastomers a), b) and c) being, before optional functionalization or optional star-branching, the same in nature.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: April 18, 2017
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Mathilde Abad, Margarita Dorato, Jean-Michel Favrot, Nathalie Simon, Jean Marc Marechal, Stéphanie De Landtsheer