Two Or More Polymers Derived From Reactant Containing Two Or More Ethylenic Groups Patents (Class 524/526)
  • Patent number: 10611899
    Abstract: A rubber composition, capable of improving both on-ice performance and wear resistance of a tire, contains at least one type of diene polymer, silica, and a resin, wherein: 5 MP?storage elastic modulus (E?) of the rubber composition at ?20° C.?10 MPa; storage elastic modulus (E?) at ?20° C. and loss tangent (tan ?) at ?20° C. of the rubber composition satisfy formula (1) below; and a mass ratio of content (parts by mass) of the silica with respect to content (parts by mass) of the resin, or silica content/resin content, is in the range of 1.00 to 4.00. 0.02×(E??20° C.)+0.25?(tan ??20° C.)?0.65??(1) In the formula, (E??20° C.) represents storage elastic modulus (MPa) of the rubber composition at ?20° C. and (tan ??20° C.) represents loss tangent of the rubber composition at ?20° C.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: April 7, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Hideyuki Nukaga
  • Patent number: 10538619
    Abstract: A hydrogenated norbornene-based ring-opening polymer having a syndiotacticity ((racemo diads)/(meso diads+racemo diads)×100) of more than 90% is disclosed. A method for producing the same is also disclosed. It is thus possible to provide a hydrogenated highly syndiotactic norbornene-based ring-opening polymer that is formed of a single material, and exhibits high solvent resistance, and a method for producing the same.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: January 21, 2020
    Assignee: ZEON CORPORATION
    Inventors: Shigetaka Hayano, Richard Royce Schrock, Benjamin Autenrieth
  • Patent number: 10526510
    Abstract: An adhesion promoting composition for an anti-corrosion includes about 20% by weight to about 70% by weight of at least one polyolefin selected from polyethylene and/or polypropylene; about 20% by weight to about 65% by weight of at least one butyl rubber; and about 6% by weight to about 35% by weight of at least one elastomer selected from a group comprising ethylene-propylene-rubber and/or ethylene-propylene-diene rubber; each based on the total quantity of the adhesion promoting composition.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: January 7, 2020
    Assignee: DENSO-HOLDING GMBH & CO.
    Inventors: Thomas Markus Kaiser, Oleg Gryshchuk
  • Patent number: 10508163
    Abstract: A conjugated diene polymer having a high content of cis-1,4-structures with a high activity, a conjugated diene polymer and a modified conjugated diene polymer using the same, a rubber composition for a tire, and a rubber composition for a rubber belt. Described are a catalyst for a conjugated diene polymerization including: a non-metallocene type gadolinium compound (A) represented by the general formula (1); an ionic compound (B) formed of a non-coordinating anion and a cation; and an organic metal compound (C) of an element selected from the group consisting of a group 2, a group 12, and a group 13 of the periodic table, a conjugated diene polymer and a modified conjugated diene polymer obtained using the same, a rubber composition for a tire, and a rubber composition for a rubber belt.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: December 17, 2019
    Assignee: Ube Industries, Ltd.
    Inventors: Koji Shiba, Masato Murakami, Michinori Suzuki, Naomi Okamoto, Mitsuharu Anbe, Masahiro Tanaka
  • Patent number: 10487900
    Abstract: A natural rubber composition includes a natural rubber, a carbon black filler in an amount of 40 phr based on an amount of the natural rubber, a sulfur crosslinking agent in an amount of 1 phr of based on the amount of the natural rubber, and an accelerator to adjust vulcanization physical properties and a dynamic ratio. The accelerator includes a semi-ultra accelerator in an amount of 0.3 to 1 phr based on the amount of the natural rubber, a delayed accelerator in an amount of 1 to 2 phr based on the amount of the natural rubber, and an ultra accelerator in an amount of 0.3 to 1 phr based on the amount of the natural rubber.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: November 26, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ho Dong Kim, Heon Seob Jung
  • Patent number: 10472505
    Abstract: The present invention provides a pneumatic tire that achieves a balanced improvement in fuel economy, abrasion resistance, and processability. A pneumatic tire formed from a rubber composition, the rubber composition containing a rubber component including a hydrogenated copolymer and a general purpose rubber, the hydrogenated copolymer containing a structural unit derived from an aromatic vinyl compound and a structural unit derived from a conjugated diene compound, the hydrogenated copolymer having a degree of hydrogenation of the conjugated diene portion of 30 to 100 mol %, a weight average molecular weight of 50,000 to 2,000,000, and a styrene content of 5% to 50% by mass, the general purpose rubber being at least one selected from the group consisting of natural rubber, polyisoprene rubber, styrene-butadiene rubber, and polybutadiene rubber, the rubber component including, based on 100% by mass thereof, 10% to 80% by mass of the hydrogenated copolymer.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: November 12, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Yuhei Yamashiro
  • Patent number: 10377883
    Abstract: The present invention provides a rubber composition for a tire having improved workability and abrasion resistance. A rubber composition for a tire according to the present invention comprises: a polybutadiene which has: (A) a Mooney viscosity (ML1+4,100° C.) being 43 or more; (B) a ratio (Tcp/ML1+4,100° C.) of 5 wt % toluene solution viscosity (Tcp) to Mooney viscosity (ML1+4,100° C.) being 0.9 to 2.3; (C) a stress relaxation time (T80) being 10.0 to 40.0 seconds, which is a time until a torque is attenuated by 80% when the torque at the end of ML1+4,100° C. measurement is 100%; and (D) a molecular weight distribution (Mw/Mn) being 2.50 to 4.00; another rubber (ii); and a rubber reinforcing material (iii).
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: August 13, 2019
    Assignees: UBE INDUSTRIES, LTD., SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Mitsuharu Ambe, Yuuto Kanou, Takeshi Shoda, Takahiro Mabuchi, Toshifumi Haba
  • Patent number: 10301458
    Abstract: A rubber compound comprising a polymer base with a cross-linkable unsaturated chain, a filler and a vulcanization system. The vulcanization system comprises at least sulphur, one or more vulcanization accelerators, and one or more vulcanization activators. The vulcanization system comprises, as a vulcanization activator, a zinc salt of a monocarboxylic acid with general formula (I) HO2C(CH2)mCO(CH2)nCH3??(I) wherein: m is an integer from 0 to 3; n is an integer from 0 to 4.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: May 28, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Raffaele Di Ronza, Ludovica Caliano
  • Patent number: 10246526
    Abstract: Provided is a method for producing a vulcanized rubber composition, including: a first kneading step of obtaining a kneaded mixture comprising a rubber component comprising at least one selected from the group consisting of natural rubbers and synthetic rubbers, a filler comprising an inorganic filler, and a sulfur-containing silane coupling agent; a second kneading step of adding sulfur and a vulcanization accelerator to the kneaded mixture, followed by kneading, to thereby obtain an unvulcanized rubber composition; and a vulcanization step of vulcanizing the unvulcanized rubber composition to thereby obtain a vulcanized rubber composition having a glass transition temperature of ?30° C. to 0° C. by; wherein specific aminoguanidines are added, followed by kneading, in the first kneading step.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: April 2, 2019
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Takuya Kageyama, Takashi Sugimoto, Susumu Innan
  • Patent number: 10040925
    Abstract: The invention relates to a rubber mixture and to a motor vehicle tire. The rubber mixture comprises the following constituents: at least one rubber and at least one reinforcing filler and 0.5 to 10 phr of at least one hydrocarbon wax composition, where the hydrocarbons in the wax composition have 15 to 110 carbon atoms and where: a) 25% to 40% of the hydrocarbons are linear hydrocarbons having 20 to 30 carbon atoms; and where inter alia b) 5% to 18% of the hydrocarbons are linear hydrocarbons having 31 to 38 carbon atoms; and where inter alia c) 25% to 40% of the hydrocarbons are linear hydrocarbons having 39 to 60 carbon atoms, where the percentage in each case is based on the total number of hydrocarbons having 15 to 110 carbon atoms. The motor vehicle tire comprises the rubber mixture at least in an outer component.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: August 7, 2018
    Assignee: Continental Reifen Deutschland GmbH
    Inventor: Corinna Schwarzendahl
  • Patent number: 9972863
    Abstract: Provided herein are ionically conductive solid-state compositions that include ionically conductive inorganic particles in a matrix of an organic material. The resulting composite material has high ionic conductivity and mechanical properties that facilitate processing. In particular embodiments, the ionically conductive solid-state compositions are compliant and may be cast as films. In some embodiments of the present invention, solid-state electrolytes including the ionically conductive solid-state compositions are provided. In some embodiments of the present invention, electrodes including the ionically conductive solid-state compositions are provided. The present invention further includes embodiments that are directed to methods of manufacturing the ionically conductive solid-state compositions and batteries incorporating the ionically conductive solid-state compositions.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: May 15, 2018
    Assignee: Blue Current, Inc.
    Inventors: Alexander Teran, Joanna Burdynska, Benjamin Rupert, Eduard Nasybulin, Saranya Venugopal, Simmi Kaur Uppal
  • Patent number: 9790333
    Abstract: A method for producing a rubber composition containing a rubber wet master batch has a masticating process. The masticating process comprises step 1 of charging the rubber wet master batch into an enclosed kneading chamber that has a stirring rotor showing a rotation speed controllable automatically through a control unit and that is capable of detecting and outputting an internal temperature, step 2 of setting a first control time and a first target temperature in the control unit, and step 3 of stirring the inside of the kneading chamber while making a PID control for adjusting an actually measured temperature in the kneading chamber to the first target temperature through the control unit on the basis of information on the actually measured temperature and the first target temperature, thereby automatically controlling the rotation speed, until the first control time elapses after the completion of the two steps.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: October 17, 2017
    Assignee: TOYO TIRE & RUBBER CO., LTD.
    Inventor: Takashi Miyasaka
  • Patent number: 9758647
    Abstract: A rubber mixture and a pneumatic vehicle tire having a rubber mixture containing the following constituents: 15 to 55 phr of at least one natural polyisoprene and/or 15 to 55 phr of at least one synthetic polyisoprene and 15 to 85 phr of at least one polybutadiene and 25 to 55 phr of at least one carbon black and 1 to 10 phr of at least one ozone protection wax, wherein the ozone protection wax contains unbranched hydrocarbons having the following chain length distribution consisting of at least the three ranges A, B and C: range A: hydrocarbons having 26 to 31 carbon atoms, range B: hydrocarbons having 32 to 36 carbon atoms, range C: hydrocarbons having 37 to 47 carbon atoms, wherein the relative proportions of the ranges A to B to C are (0.7-1.5) to 1 to (0.6 - 1.4).
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: September 12, 2017
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Verena Busch, Thomas Pietag, Corinna Schwarzendahl, Hong Peng Tang, Martin Francke
  • Patent number: 9593233
    Abstract: A rubber mixture and a pneumatic vehicle tire including a rubber mixture containing the following constituents: 15 to 55 phr of at least one natural polyisoprene and/or 15 to 55 phr of at least one synthetic polyisoprene and 15 to 85 phr of at least one polybutadiene and 60 to 100 phr of at least one carbon black and 1 to 10 phr of at least one anti-ozone wax, wherein the anti-ozone wax contains unbranched hydrocarbons having the following chain length distribution including at least the three ranges A and B and C: range A: hydrocarbons having 26 to 31 carbon atoms, range B: hydrocarbons having 32 to 36 carbon atoms, range C: hydrocarbons having 37 to 47 carbon atoms, wherein the relative mass fractions of the ranges A to B to C are 0.7 to 1.5:1:0.6 to 1.4.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: March 14, 2017
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Verena Busch, Thomas Pietag, Corinna Schwarzendahl, Hon Peng Tang, Martin Francke
  • Patent number: 9567451
    Abstract: A rubber composition for use in tire treads comprises a diene rubber including not less than 40% by weight of a modified conjugated diene polymer rubber and, per 100 parts by weight of the diene rubber, from 66 to 110 parts by weight of a filler. The filler comprises not less than 50% by weight of silica. The modified conjugated diene polymer rubber is obtained by copolymerizing a conjugated diene monomer unit and an aromatic vinyl monomer unit in a hydrocarbon solvent using an organic active metal compound as an initiator. A resulting active conjugated diene polymer chain thereof has a terminal modified group, obtained by reacting at least one type of compound having a functional group that is reactable with the active terminal of the polymer chain. Moreover, the terminal modified group has a functional group that interacts with the silica.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: February 14, 2017
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Masaki Satou, Takashi Shirokawa, Makoto Ashiura, Yoshihiro Kameda, Ayumi Naka, Keisuke Maejima
  • Patent number: 9469753
    Abstract: Disclosed is an ethylene-propylene copolymer having isotactic polypropylene crystallinity compounded with a halobutyl rubber in an amount effective to improve one or more of aged tensile strength retention, fatigue resistance, and dimensional stability. Also disclosed is an elastomer composition wherein the copolymer can have at least 60 wt % propylene-derived units and at least 6 wt % ethylene-derived units, and a tire inner tube or tire innerliner composition comprising from 1 to 10 phr copolymer. Also disclosed is a vulcanizate of the elastomer composition, and articles, tire innerliners, tires, and tire inner tubes comprising the vulcanizate. Further disclosed are processes for making molded articles, tire inner tubes and tires.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: October 18, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Bernard D'Cruz, Sunny Jacob, Michael Brendan Rodgers, Nitin Kamalakar Tambe
  • Patent number: 9416252
    Abstract: A rubber composition comprises a diene rubber including not less than 25% by weight of a modified conjugated diene polymer rubber and, per 100 parts by weight of the diene rubber, from 25 to 65 parts by weight of a filler, the filler comprising not less than 50% by weight of silica. The silica has a DBP absorption number of 190 to 250 ml/100 g, an N2SA of 194 to 225 m/g, and a CTAB of 185 to 215 m2/g. A ratio of the N2SA to the CTAB is from 0.9 to 1.4. The modified conjugated diene polymer rubber has a terminal modified group including a functional group that interacts with the silica. In the modified conjugated diene polymer rubber, aromatic vinyl unit content is from 38% to 48% by weight, vinyl unit content is from 20% to 35%, and weight-average molecular weight is from 600,000 to 1,000,000.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: August 16, 2016
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Ayumi Naka, Takashi Shirokawa, Makoto Ashiura, Yoshihiro Kameda, Masaki Satou, Keisuke Maejima
  • Patent number: 9328212
    Abstract: The present invention aims to provide a rubber composition for a clinch or chafer which enables to improve the rim chafing resistance, elongation at break, handling stability, and fuel economy in a balanced manner, and to reduce the number of broken spews in tire demolding; and a pneumatic tire produced using the rubber composition. The rubber composition for a clinch or chafer includes 100 parts by mass of a rubber component; 1.2 to 2.9 parts by mass of zinc oxide; and 2.2 to 4.0 parts by mass of stearic acid, the rubber component including 15 to 80% by mass of a butadiene rubber and 15 to 50% by mass of an isoprene-based rubber based on 100% by mass of the rubber component.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: May 3, 2016
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tatsuya Miyazaki
  • Patent number: 9254594
    Abstract: A multilayer laminated material which comprises at least one layer of glass and which has improved thermal stability is distinguished in that it comprises a lower substrate layer of a plastic, a metal or a combination of plastic and metal, an intermediate layer arranged thereon and comprising a soft material or comprising a thermoplastic, a further fibrous intermediate layer comprising plastic, which is provided with a solvent-free adhesive material, and a top layer of glass. The multilayer laminated material is suitable for the installation of glass elements in the area of the electrical, the electronics and the automotive industry and for other industrial applications.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: February 9, 2016
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventor: Klaus Müller
  • Patent number: 9186933
    Abstract: There is disclosed a functionalized elastomer of formula I where R1, R2 and R3 are independently C1 to C8 alkyl or C1 to C8 alkoxy, with the proviso that at least two of R1, R2 and R3 are C1 to C8 alkoxy; R4 is C1 to C8 alkanediyl, C1 to C8 arylene, C1 to C8 alkylarylene, C1 to C8 arylalkanediyl, or a covalent bond; R5 is C2 alkanediyl; Si is silicon; X is sulfur or oxygen; and P is a diene based elastomer, and n is 1 or 2.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: November 17, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Leena Nebhani
  • Patent number: 9040618
    Abstract: A rubber composition for manufacturing tyres is based on one or more diene elastomers, one or more reinforcing fillers, and a vulcanization system. The vulcanization system includes one or more 1,2,4-triazine compounds chosen from compounds of formula I and compounds of formula II: Certain specific 1,2,4-triazine derivatives are described.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: May 26, 2015
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Anne Veyland, Nicolas Seeboth
  • Patent number: 9034980
    Abstract: A pneumatic tire for a commercial vehicle with a tread, wherein at least the part of the tread which comes into contact with the road contains a sulphur-vulcanized rubber mixture. The sulphur-vulcanized rubber mixture contains 90 to 50 phr (parts by weight, based on 100 parts by weight, of all of the rubbers in the mixture) of natural rubber, 10 to 50 phr of at least one polybutadiene having a glass transition temperature Tg of ?110 to ?65° C. and 5 to 50 phr of at least one aliphatic and/or aromatic hydrocarbon resin having a softening point (ring and ball to ASTM E 28) of 0 to 150° C., and a mean molecular weight Mn of less than 2000 g/mol and a polydispersity D=Mw/Mn of 1 to 5.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: May 19, 2015
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Carla Recker, Philipp Koelle, Thomas Kramer, Christoph Jocher, Thorsten Torbruegge, Fabian Dettmer, Norbert Daldrup
  • Patent number: 9034969
    Abstract: A rubber composition for the manufacture of tires, based on a blend of at least one diene elastomer chosen from natural rubber and synthetic polyisoprene and of one or more diene elastomers chosen from the group consisting of polybutadienes, butadiene copolymers and isoprene copolymers, on one or more reinforcing fillers and on a vulcanization system, the said vulcanization system comprising one or more thiazoline compounds of formula:
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: May 19, 2015
    Assignees: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Anne Veyland, Nicolas Seeboth, José Carlos Araujo Da Silva
  • Publication number: 20150126673
    Abstract: Provided herein are organic solvent-based processes for the isolation of purified natural rubber from non-Hevea plants. The processes are particularly useful with plant matter that comprises at least 90% by weight roots sourced from Taraxacum kok-saghyz (Russian dandelion), Scorzonera tau-saghyz (Tau-Saghyz), Scorzonera uzbekistanica, and combinations thereof. Also provided herein is a purified non-Hevea rubber product containing 100 phr of rubber sourced from Taraxacum kok-saghyz, Scorzon-era tau-saghyz, Scorzonera uzbekistanica, and combinations thereof, having a specified purity level. Additionally provided are sulfur-vulcanizable rubber compounds and sulfur-vulcanized rubber compounds that incorporate 10-100 phr of purified non-Hevea rubber product sourced from Taraxacum kok-saghyz, Scorzonera tau-saghyz, Scorzonera uzbekistanica, and combinations thereof, having a specified purity level.
    Type: Application
    Filed: May 16, 2013
    Publication date: May 7, 2015
    Applicant: Bridgestone Corporation
    Inventors: Amy M. Randall, Arif O. Gozen
  • Publication number: 20150126674
    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: Application
    Filed: July 4, 2013
    Publication date: May 7, 2015
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Daisuke Sato
  • 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
  • Publication number: 20150119495
    Abstract: Preparation of a rubber composition containing a dispersion of aligned exfoliated graphite platelets. Such rubber composition is prepared by a method comprised of a sequential combination of concentrated solvent or dry masterbatching of elastomer and exfoliated graphite platelets, followed by blending the masterbatch (after removing the solvent from the solvent based masterbatch) with additional elastomer(s) and then followed by processing the resulting rubber composition to align the dispersed exfoliated graphite platelets in a substantially parallel relation to each other. Such processing may comprise as least one of extrusion and calendaring the rubber composition. The invention further relates to a tire containing a component comprised of such rubber composition containing a dispersion of aligned exfoliated graphite platelets prepared by the aforesaid method.
    Type: Application
    Filed: October 24, 2013
    Publication date: April 30, 2015
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Junling Zhao, Xiaoping Yang, Carl Trevor Ross Pulford
  • 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
  • Patent number: 8993664
    Abstract: The present invention provides a rubber composition for tires capable of improving handling stability, fuel economy, wet grip performance, elongation at break, and abrasion resistance together while maintaining the balance between them. The present invention also provides a pneumatic tire including the rubber composition. The present invention relates to a rubber composition for tires containing a diene rubber, silica having a BET specific surface area of 170 to 270 m2/g, sulfur, and a liquid resin having a softening point of ?20 to 45° C., wherein the amount of the liquid resin is 0.5 to 20 parts by mass, and the amount of the silica is 40 to 120 parts by mass, each per 100 parts by mass of the rubber component of the rubber composition.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: March 31, 2015
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Tatsuya Miyazaki
  • Publication number: 20150087763
    Abstract: The present invention relates to a copolymer including a monomer unit (a) derived from isoprene and a monomer unit (b) derived from farnesene; a process for producing the copolymer including at least the step of copolymerizing isoprene with farnesene; a rubber composition including (A) the copolymer, (B) a rubber component and (C) carbon black; a rubber composition including (A) the copolymer, (B) a rubber component and (D) silica; a rubber composition including (A) the copolymer, (B) a rubber component, (C) carbon black and (D) silica; and a tire using the rubber composition at least as a part thereof.
    Type: Application
    Filed: April 2, 2013
    Publication date: March 26, 2015
    Applicants: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Daisuke Koda, Kei Hirata
  • Publication number: 20150079322
    Abstract: A novel precursor is disclosed. The precursor comprises (a) natural or synthetic rubber; (b) a material selected from the group consisting of thermoplastic vulcanizate (TPV), thermoplastic incorporating microparticles of rubber, and any combination thereof; and (c) a cross-linking agent. In some embodiments, the precursor additionally comprises components such as a cross-linking co-agent, carbon black, fillers. The incorporation of thermoplastic in to the precursor enables the inclusion of carbon black or other fillers without any necessity for addition of plasticizers or process oils.
    Type: Application
    Filed: April 14, 2013
    Publication date: March 19, 2015
    Inventors: Mirco Pellegrini, Nitzan Eliyahu
  • Publication number: 20150080522
    Abstract: A process and the resultant product from the process for continuously making a blend of a terpolymer and a tetrapolymer utilizing ethylene, propylene, and non-conjugated dienes. This process allows for the creation of products with high diene contents and broad molecular weight distributions while utilizing a continuous flow reactor and a known catalyst. The process allows for these products to be made without gelling or fouling of the reactor, which are problems known in the art.
    Type: Application
    Filed: November 26, 2014
    Publication date: March 19, 2015
    Inventors: Solomon H.K. Tang, Willie Charles Burton, Garrett Doucet
  • Publication number: 20150073085
    Abstract: A precursor to an elastomeric composition with improved properties is disclosed. The precursor comprises a cross-linkable rubber, a thermoplastic vulcanizate, and a cross-linking agent. An elastomeric composition produced by cross-linking of the rubber in the precursor and methods for manufacture of the precursor and the elastomeric composition are disclosed as well.
    Type: Application
    Filed: April 14, 2013
    Publication date: March 12, 2015
    Inventors: Nitzan Eliyahu, Mirco Pellegrini
  • Publication number: 20150057403
    Abstract: The present invention relates to a copolymer including a monomer unit (a) derived from a conjugated diene having not more than 12 carbon atoms and a monomer unit (b) derived from farnesene; a process for producing the copolymer including at least the step of copolymerizing a conjugated diene having not more than 12 carbon atoms with farnesene; a rubber composition including (A) the copolymer, (B) a rubber component and (C) carbon black; a rubber composition including (A) the copolymer, (B) a rubber component and (D) silica; a rubber composition including (A) the copolymer, (B) a rubber component, (C) carbon black and (D) silica; and a tire using the rubber composition at least as a part thereof.
    Type: Application
    Filed: April 2, 2013
    Publication date: February 26, 2015
    Applicants: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Daisuke Koda, Kei Hirata
  • Patent number: 8962723
    Abstract: A durable substrate coating and a process of making include a resin master batch. The resin master batch can include ethylene propylene diene with a polymethylene backbone, mineral spirits, fillers, a de-tackifier, a curative, an activator component, and a metal dryer. The process can include adding the mineral spirits to: the ethylene propylene diene, a plasticizer, and the de-tackifier, and blending to form a solution. The process can include adding the fillers, a light stabilizer, a rheology modifier, and a pigment to the solution, forming a first mixture. The process can include adding another rheology modifier, another light stabilizer, an antioxidant, and a curative to the first mixture, forming a second mixture. The process can include mixing the second mixture to homogenously disperse each ingredient while maintaining a temperature of 60 degrees Celsius to prevent the mineral spirits from flashing.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: February 24, 2015
    Assignee: Lion Copolymer Geismar, LLC
    Inventors: Arthur Joseph Fontenot, III, John Paul Krug
  • Patent number: 8962722
    Abstract: A solvent-less liquid ethylene propylene diene rubber compound and a solvent-less liquid ethylene propylene rubber compound are provided. The compounds can include a liquid ethylene propylene diene or a liquid ethylene propylene mixed with a filler system, a plasticizer, and a cross-linking agent to form the compound. The compound can have a viscosity ranging from 150,000 centipoises to 750,000 centipoises at a temperature of 23 degrees Celsius, allowing the compound to be liquid injection moldable. The compound can contain substantially no solvent.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: February 24, 2015
    Assignee: Lion Copolymer Geismar, LLC
    Inventors: Arthur Joseph Fontenot, III, Wasif Khan, John Wesley Summers, II
  • Patent number: 8962724
    Abstract: A two part low volatile organic compounds (VOC) content ethylene propylene diene terpolymer formulation with a solids content of at least 60 percent solids by volume of the total formulation and a volatile organic compounds content less than 450 grams per liter, wherein a first component has EPDM, a solvent, a curative, an additive, and a blend of a pigment and a filler. The second component contains solvent and a metal drier. The invention includes a method for making the coating and a cured coated substrate with the cured waterproof rubber coating disposed thereon.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: February 24, 2015
    Assignee: Lion Copolymer Geismar, LLC
    Inventors: Michael J. Molnar, Arthur J. Fontenot, III, Harold William Young, Jr., Daniel S. Nelson, Augusto Caesar Ibay
  • Publication number: 20150051332
    Abstract: The present invention relates to a rubber composition including a rubber component (A), a farnesene polymer (B) and silica (C).
    Type: Application
    Filed: February 18, 2013
    Publication date: February 19, 2015
    Applicants: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Daisuke Koda, Kei Hirata
  • Publication number: 20150045497
    Abstract: The present application provides a polymer composite comprising at least one polymer and a reclaimed pyrolyzed carbon black (pCB), wherein the pCB comprises less than about 10 ?g/g of polycyclic aromatic hydrocarbons (PAH). Also provided are polymer composite and consumer-ready formulations of the low PAH pCB and methods of manufacturing such composites and formulations.
    Type: Application
    Filed: October 27, 2014
    Publication date: February 12, 2015
    Inventors: Vincent W. Y. WONG, Rui RESENDES, Timothy James CLARK
  • Publication number: 20150038621
    Abstract: A production method of a compound for realization of modified bitumen for asphalts is disclosed, and includes the following steps: grinding of vulcanized rubber to obtain vulcanized crumb rubber with granulometry lower than 0.4 mm; mixing of the vulcanized crumb rubber, SBS and lubricant in an extruder, wherein the weight percentage of lubricant is between 1% and 50% compared to mixture weight and the vulcanized crumb rubber is in a weight percentage of 70-100% compared to SBS weight; in such way to obtain an extruded compound containing the vulcanized crumb rubber, SBS and lubricant.
    Type: Application
    Filed: October 24, 2012
    Publication date: February 5, 2015
    Applicant: TECNOFILM S.P.A.
    Inventor: Bruno Cardinali
  • Publication number: 20150038636
    Abstract: The invention relates to a composition, especially for an elastomer body of an elastic coupling, comprising the following components:—polyisoprene rubber having a proportion of 20 to 30% by weight,—butadiene rubber having a proportion of 20 to 30% by weight, based in each case on the total weight of the composition. The invention further relates to the use of the composition for production of an elastomer body, especially for an elastic coupling, preferably elastic shaft coupling. The invention additionally relates to an elastomer body, especially for an elastic coupling, which comprises the composition. The invention also relates to a coupling comprising the composition or the elastomer body.
    Type: Application
    Filed: March 8, 2013
    Publication date: February 5, 2015
    Inventors: Thomas Kamps, Volker Wegener, Irina Gutjar, Axel Blaurock
  • Publication number: 20150031821
    Abstract: The present invention provides a rubber composition comprising, as blended, a rubber component (A), an amino acid derivative (B) and a filler containing an inorganic filler (C), and further containing, as incorporated therein, at least one selected from sulfur and a sulfur compound. The vulcanization rate of the rubber composition is accelerated and the low-heat-generation property thereof is excellent.
    Type: Application
    Filed: February 26, 2013
    Publication date: January 29, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takeshi Shiono, Takumi Toda, Satoshi Horie
  • Patent number: 8927638
    Abstract: A polypropylene resin composition, including 75-90 wt. % of polypropylene resin as a matrix, 7-15 wt. % of hydrogenated styrene-butadiene-styrene copolymer elastomer (A) having a styrene content of 18-42 wt. %, and 3-10 wt. % of hydrogenated styrene-butadiene-styrene copolymer elastomer (B) having a styrene content of 12-15 wt. %. The polypropylene resin composition has an excellent scratch resistance compatible with impact resistance, and outstanding melt-moldability and is suitable for providing a colored-resin molding compound.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: January 6, 2015
    Assignee: Suzuki Motor Corporation
    Inventors: Hiroaki Nagashima, Kayo Kikuchi
  • Publication number: 20150001047
    Abstract: Provided is a rubber composition for conveyor belts capable of satisfying both energy efficiency and durability. Concretely provided is a rubber composition for conveyor belts comprising (A) 100 parts by mass of a dienic polymer, and (B) from 25 to 55 parts by mass of carbon black including carbon black (b-1) having a nitrogen-adsorbing specific surface area of from 60 to 100 m2/g and a dibutyl phthalate oil absorption of less than 110 ml/100 g, and carbon black (b-2) having a nitrogen-adsorbing specific surface area of less than 60 m2/g and a dibutyl phthalate oil absorption of at least 110 ml/100 g. Further provided are a conveyor belt obtained using the rubber composition for conveyor belts, and a belt conveyor having the conveyor belt mounted thereto.
    Type: Application
    Filed: December 10, 2012
    Publication date: January 1, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Hiroki NAKANO
  • Patent number: 8921477
    Abstract: Nanolatexes comprising functional monomers and methods for making nanolatexes. Compositions comprising between about 3:97 and 90:10 (w/w) nanolatex particles to conventional latex particles. Because of the particle size differences between the conventional and nanolatexes, the nanolatexes may distribute themselves advantageously amongst the conventional latexes during coalescence, resulting in films having unexpected properties. In particular, when the average particle size of the conventional latex is about six times larger than the average particle size of the nanolatex, a composition comprising a ratio of 1 conventional latex particle for every 25 nanolatex particles results in unexpectedly strong (large Young's modulus) and smooth (high specular gloss) films.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: December 30, 2014
    Assignee: Eastern Michigan University
    Inventors: Frank N. Jones, Ravi G. Joshi, Theodore Provder
  • Publication number: 20140378603
    Abstract: A non-carboxylated styrene-butadiene copolymer, preparation method and use thereof are provided. The non-carboxylated styrene-butadiene copolymer is prepared by hot polymerization in the absence of acid monomers and is used in asphalt-based systems such as asphalt emulsions.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Applicant: BASF SE
    Inventors: Kostas S. Avramidis, William J. Kirk
  • Publication number: 20140378602
    Abstract: The invention provides a composition comprising a first composition comprising the following: A) a first ethylene/?-olefin interpolymer that has a weight average molecular weight (Mw) greater than 90,000 g/mole and a MWD less than, or equal to 3, each as determined by conventional GPC; B) a second ethylene/?-olefin interpolymer; and wherein the first composition has a number average molecular weight (Mn) less than 10,000 g/mole, as determined by conventional GPC; and wherein the ?-olefin of first interpolymer is the same as the ?-olefin of the second interpolymer.
    Type: Application
    Filed: December 27, 2012
    Publication date: December 25, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Brian W. Walther, Timothy E. Clayfield, Curvel Hypolite
  • Publication number: 20140371380
    Abstract: A rubber tyre compound having at least a polymer base; a filler; a curing system; and treated silica with an adsorbed curing activator in the group including sulphenamides, benzothiazoles, guanidines and thiurams.
    Type: Application
    Filed: January 25, 2013
    Publication date: December 18, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Francesco Botti, Guido Barbaglia, Giovanni Alessandro Pertusio
  • Publication number: 20140367009
    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: Application
    Filed: October 18, 2012
    Publication date: December 18, 2014
    Inventor: Tatsuya Miyazaki
  • Patent number: 8877857
    Abstract: The present invention provides a polar group-containing copolymer which can provide a rubber composition and a winter tire achieving the abrasion resistance, performance on ice, and handling stability on dry roads in a balanced manner. The present invention relates to a polar group-containing copolymer obtainable by copolymerizing a conjugated diene compound and a polar group-containing vinyl compound, wherein the polar group-containing vinyl compound is a compound that has a polymerizable unsaturated bond and a polar group, wherein any one of carbon atoms forming the polymerizable unsaturated bond and a carbon atom linked to the polar group are connected to each other via at least one carbon atom, and wherein a cis content of the double bond portion of the conjugated diene compound in the polar group-containing copolymer is 80 mol % or more.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: November 4, 2014
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Ryuichi Tokimune, Kazuo Hochi, Katsumi Terakawa