Conjugated Diene Hydrocarbon Monomer Patents (Class 524/571)
  • Patent number: 10562780
    Abstract: The present invention relates to methods for removing carbon from a char product that is formed by heating a silica-containing rubber compound in an inert atmosphere or under vacuum. The method includes heating the char product in an oxidising atmosphere to remove the carbon material leaving a silica-containing product. The methods are particularly applicable to vehicle tyre rubber compositions. Silica-containing products obtained by these methods and rubber compositions incorporating such silica-containing products are also aspects of the invention.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: February 18, 2020
    Assignee: Avon Polymer Products LTD
    Inventors: Christopher Norris, Martyn Bennett
  • Patent number: 10233312
    Abstract: A modified diene elastomer comprises: at least 55% by weight of entity coupled by a functional group bearing a function of formula —SiOR, in which R is a hydrogen atom or an alkyl radical, and optionally bearing another function capable of interacting with a reinforcing filler, from 5% by weight to 30% by weight of star-branched entity having three elastomeric branches connected to one and the same silicon atom belonging to a functional group bearing or not bearing a function capable of interacting with a reinforcing filler, less than or equal to 15% by weight of entity functionalized at the chain end by a functional group bearing a function —Si(OR)2, in which R is a hydrogen atom or an alkyl radical, and optionally bearing another function capable of interacting with a reinforcing filler, and a content of less than or equal to 15% by weight of non-functional diene elastomer.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: March 19, 2019
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.
    Inventors: Charlotte Dire, Jean-Marc Marechal, Margarita Dorato, Mathieu Manceau, Nuno Pacheco
  • Patent number: 10207540
    Abstract: A tire tread formed at least in part from a rubber composition that is based upon a cross-linkable rubber composition that may include between 50 phr and 90 phr of a first highly unsaturated elastomer being middle chain functionalized with an aminoalkoxysilane group and having a Tg of between ?108° C. and ?45° C. and between 10 phr and 50 phr of a second highly unsaturated elastomer being end-chain functionalized with a silanol group and having a Tg of between ?108° C. and ?10° C. The rubber composition may further include between 50 phr and 150 phr of a silica filler and a plasticizing system comprising between 5 phr and 120 phr of a plasticizing resin having a Tg of at least 25° C. and between 0 phr and 60 phr of a plasticizing liquid.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: February 19, 2019
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: Anthony Derbin Cato, Raymond Stubblefield, Xavier Saintigny, Olivier Piffard
  • Patent number: 10004666
    Abstract: The present invention is directed to a dental composition, and specifically to an improved composition for endodontic instruments useful for filling root canals or sealing.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: June 26, 2018
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Todd Berger, Kevin Wilkinson, Adam Barantz, Dan Ammon, Xiaoming Jin, Bernard Koltisko
  • Patent number: 9932460
    Abstract: The present invention provides a rubber composition that can enhance the fuel economy, wet-grip performance, and abrasion resistance in a balanced manner, and a pneumatic tire using this rubber composition. The present invention relates to a rubber composition that contains a rubber component, silica, and a liquid resin having a softening point of ?20 to 20° C., wherein the rubber component contains, based on 100% by mass of the rubber component, not less than 5% by mass of a conjugated diene polymer containing a constituent unit based on a conjugated diene and a constituent unit represented by formula (I) below, at least one terminal of the polymer being modified with a specific compound; and an amount of the silica is 5 to 150 parts by mass per 100 parts by mass of the rubber component.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: April 3, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Isamu Tsumori, Kenichi Uesaka, Naoya Omura, Tetsuya Kunisawa, Tatsuhiro Tanaka, Kazuyuki Nishioka
  • Patent number: 9845384
    Abstract: A rubber compound for tyres comprising a cross-linkable unsaturated chain polymer base comprising, in turn, at least a rubber of synthetic origin, a silica-free filler at least partially comprising carbon black, a vulcanization system and a mercapto carboxylic acid.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: December 19, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Giancarlo Cossu, Gianluca Forte
  • Patent number: 9758651
    Abstract: There is disclosed a vulcanizable rubber composition comprising: (A) a diene based elastomer, (B) from 50 to 150 parts by weight, per 100 parts by weight of elastomer (phr), of silica; (C) from 0.15 to 0.45 phr of a polymeric amine comprising a primary amine functionality; and (D) from 1.5 to 2.5 parts by weight, per 1 part by weight of the polymeric amine, of an aromatic carboxylic acid or aromatic acid anhydride.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: September 12, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Ling Du
  • Patent number: 9692015
    Abstract: An organic light emitting device having a photonic crystal structure and a manufacturing method thereof are provided. The organic light emitting device comprises: a substrate through which light passes; a photonic crystal layer formed on the substrate and having a photonic crystal structure; an intermediate layer formed on the photonic crystal layer and having a large refractive index compared with the photonic crystal layer; a first electrode layer formed on the intermediate layer; a light emitting layer formed on the first electrode layer and emitting light according to current flow; and a second electrode layer formed on the light emitting layer.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: June 27, 2017
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Jong-Youp Shim, Jun-Ho Jeong, Ki-Don Kim, Dae-Geun Choi, Jun-Hyuk Choi, Eung-Sug Lee, So-Hee Jeon, Jae-R. Youn, Jang-Joo Kim
  • Patent number: 9683088
    Abstract: A process for regenerating sulfur-crosslinked rubber vulcanizates to regenerates, wherein at least one regenerating agent is used in the regeneration. The regenerating agent is selected from the group consisting of dithiophosphoryl polysulfides and/or silanes having a polysulfane group. Regenerates which have been produced by means of the process lead to improved or equal rolling resistance indicators and a lower compression set in vulcanized rubber mixtures compared to regenerates known in the prior art.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: June 20, 2017
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Carla Recker, Lena Mueller, Thomas Voelker
  • Patent number: 9475917
    Abstract: A rubber composition and a method for manufacturing the same are provided. The rubber composition includes a main chain modified conjugated diene based polymer and a stabilizer. A weight ratio of the main chain modified conjugated diene based polymer to the stabilizer is 100:0.2˜2.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: October 25, 2016
    Assignee: CHI MEI CORPORATION
    Inventors: Kuei-Lun Cheng, Kuan-Lin Hsieh, Chih-Cheng Lee
  • Patent number: 9428596
    Abstract: A method of production of modified conjugated diene-based rubber comprising a steps of using, as a polymerization initiator, an alkali metalated aromatic compound which has three or more carbon atoms which are directly bonded to alkali metal atoms and aromatic rings in one molecule so as to polymerize a monomer which contains at least a conjugated diene compound and reacting a compound of the following general formula (I) with an active ends of the obtained polymer is provided. (In the general formula (I), any one of R1 and R10 to R18 is an atom or reactive group which can react with the active ends of said polymer or a hydrocarbon group which includes either of the same, the remaining among R1 and R10 to R18 and R2 to R9 are respectively independently a hydrogen atom, alkyl group, or aryl group, and “j”, “k”, “m”, and “n” are integers of 0 to 100.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: August 30, 2016
    Assignee: ZEON CORPORATION
    Inventors: Takeshi Sugimura, Kazuya Ito
  • Patent number: 9402391
    Abstract: The present invention relates to stable, agricultural oil-in-water emulsion compositions.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: August 2, 2016
    Assignee: Dow AgroSciences LLC
    Inventors: Wen Xu, Holger Tank
  • Patent number: 9139719
    Abstract: The present invention provides a rubber composition that achieves a well-balanced improvement in fuel economy, wet-grip performance, and abrasion resistance, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition, including a rubber component and silica, wherein the rubber component contains not less than 5% by mass of a conjugated diene polymer, based on 100% by mass of the rubber component, the conjugated diene polymer containing a constituent unit derived from a conjugated diene and a constituent unit represented by the following formula (I): at least one terminal of the conjugated diene polymer being modified by a compound containing a group represented by the following formula (II): and wherein the silica is contained in an amount of 5 to 150 parts by mass per 100 parts by mass of the rubber component.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: September 22, 2015
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yuko Hinohara, Kazuyuki Nishioka, Takahiro Mabuchi
  • 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: 9034950
    Abstract: The purpose of the present invention is to provide a rubber composition with which it is possible to produce a tire that retains wear resistance and has excellent frictional force on ice, and a pneumatic tire using the rubber composition. The rubber composition of the present invention is a rubber composition comprising a diene rubber, carbon black and/or a white filler, and a master batch prepared by premixing a non-diene rubber and an organic peroxide, wherein a total content of carbon black and white filler is from 20 to 70 parts by mass per 100 parts by mass of diene rubber and a content of the non-diene rubber in the master batch is from 3 to 30 parts by mass per 100 parts by mass of the diene rubber.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: May 19, 2015
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Satoshi Mihara, Katsunori Shimizu, Keisuke Maejima, Yayoi Akahori
  • Patent number: 9022087
    Abstract: A rubber composition for tire treads is obtained by blending, per 100 parts by mass of a diene rubber, 5 to 150 parts by mass of silica and 0.5 to 20 parts by mass of a silicone oligomer represented by the following siloxane average formula (1): (X)a(Y)b(R1)c(R2)dSiO(4-a-b-c-d)/2 (wherein X is a mercapto group-containing organic group; Y is a hydrolyzable group, R1 is a monovalent hydrocarbon group having from 4 to 10 carbon atoms, R2 is a monovalent hydrocarbon group having from 1 to 3 carbon atoms, 0<a<1, 0<b<3, 0<c<2, 0?d<2, and 0<a+b+c+d<4). The diene rubber contains an aromatic vinyl-conjugated diene copolymer in an amount of at least 50 parts by mass per 100 parts by mass of the diene rubber, the aromatic vinyl-conjugated diene copolymer having an aromatic vinyl content of 20 to 45 mass % and a vinyl bond content in the conjugated diene of 10 to 50%.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: May 5, 2015
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Naoki Kushida
  • Patent number: 9010393
    Abstract: Tyre and rubber composition for tyre, based on at least one isoprene elastomer (for example natural rubber), an inorganic filler as reinforcing filler (for example silica) and a coupling system which provides the bonding between the said reinforcing inorganic filler and the isoprene elastomer, the said coupling system comprising, in combination: as first coupling agent, a silane sulphide compound; as second coupling agent, an at least bifunctional organosilicon compound (for example an organosilane or an organosiloxane) which can be grafted to the elastomer by means of an azodicarbonyl functional group (—CO—N?N—CO—).
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: April 21, 2015
    Assignee: Michelin Recherche et Technique, S.A.
    Inventors: Jose Carlos Araujo Da Silva, Nathalie Binde, Pierre Robert, Sebastien Sterin, Anne Veyland
  • Patent number: 9006310
    Abstract: A method includes: mixing a polymer cement and a filler to form a solution masterbatch; optionally drying the solution masterbatch to form a crumb polymer composition; mixing a low viscosity polymeric or oligomeric liquid into the solution masterbatch or crumb polymer composition; and intermeshing mixing the solution masterbatch or crumb polymer composition.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 14, 2015
    Assignee: Bridgestone Corporation
    Inventors: Mark W. Smale, Zhong-Ren Chen
  • Patent number: 9000088
    Abstract: This invention relates to hydrolysable silanes useful in the modification of elastomers, and as coupling agents for diene elastomer compositions containing a filler. In particular the invention relates to novel hydrolysable silanes containing a piperazine ring and an ether or thioether linkage.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: April 7, 2015
    Assignee: Dow Corning Corporation
    Inventors: Michael Wolfgang Backer, Thomas Chaussee, Damien Deheunynck, Sebastien Grofils
  • Patent number: 8993683
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps, of: (i) polymerizing monomers to form a reactive polymer, and (ii) reacting the reactive polymer with a lactone or thiolactone that contains a protected amino group.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: March 31, 2015
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Zengquan Qin
  • Patent number: 8993675
    Abstract: An alkali metal-reacted aromatic compound which has three or more carbon atoms which are directly bonded to alkali metal atoms and aromatic rings in one molecule is used as a polymerization initiator to polymerize a monomer mixture which is contains at least one conjugated diene compound to thereby produce a radial conjugated diene polymer. Further, active ends of the polymer having active ends which is obtained by this method is made to react with a modifier which can react with the active ends to thereby produce an end-modified radial conjugated diene polymer. According to the present invention, it is possible to provide a method of production of the radial conjugated diene polymer which gives a high degree of freedom of polymer design and easy control of the polymer structure.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: March 31, 2015
    Assignee: Zeon Corporation
    Inventors: Shigetaka Hayano, Takeshi Sugimura, Yasuhisa Tsukahara
  • Publication number: 20150080525
    Abstract: Provided is a rubber composition including a rubber component. The rubber component contains at least a polymer that is a synthesized polyisoprene or an isoprene copolymer and that has 20% or less gel fraction.
    Type: Application
    Filed: March 6, 2013
    Publication date: March 19, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Junko Matsushita, Shojiro Kaita, Satoru Tamaki
  • Publication number: 20150080526
    Abstract: A process for the preparation of branched polybutadiene having a high content of 1,4-cis units which comprises polymerizing butadiene in the presence of at least one organic solvent, and in the presence of: a) a catalytic system prepared in situ including: (a1) at least one neodymium carboxylate, (a2) at least one alkyl compound of aluminum, (A3) at least one alkyl compound of aluminum containing at least one halogen atom, and b) at least one organic ester containing at least one halogen atom. Said branched polybutadiene having a high content of 1,4-cis units, depending on the branching degree and molecular weight distribution, can be advantageously used in various applications ranging from the modification of plastic materials [production, for example, of high impact polystyrene (HIPS)] to the production of tyres, in particular the production of treads and/or of sidewalls of tyres.
    Type: Application
    Filed: April 24, 2013
    Publication date: March 19, 2015
    Inventors: Andrea Vallieri, Marianna Zinna, Costantino Perretta
  • Patent number: 8980982
    Abstract: A plastic packaging component is provided that is formed of a resin containing an electromagnetic spectrally detectable additive mixed with the resin. The resin formed into a plastic packaging component of an aerosol package lid, an aerosol spray button, an aerosol spray tube, a trigger sprayer, an integrated lid-sprayer, a grease cartridge, a grease cap, plastic fiber toweling, a packaging strap, a pail lid, a jar cap, or a brush. A process for detecting a displaced packaging component in an organic production stream is provided that includes adding to a resin an electromagnetically detectable additive intermixed with the resin and forming the additive loaded resin into the plastic packaging component. The production stream is then scanned for the detectable signal of the additive. Upon detecting the additive, an alarm signal is provided that the production stream contains the displaced packaging component.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: March 17, 2015
    Assignee: Illinois Tool Works, Inc.
    Inventors: Robert H. Martin, William A. Price, II, John Gregory Bruce, Darylnn Phillips Jordan, Craig Martin Stearns
  • Patent number: 8978721
    Abstract: A heat-expandable rubber layer is provided to an inner all of a pneumatic tire when the tire is in an uncured state. The rubber layer is expanded when the tire is in a vulcanized state. Once expanded, the rubber layer is capable of reducing rolling noises of the tire. The rubber layer includes an elastomer composition based on at least an elastomer, e.g., natural rubber or butyl rubber; a reinforcing filler, e.g., silica and/or carbon black; between 10 and 80 phr of a blowing agent, e.g., an azodicarbonamide compound; and between 10 and 50 phr of a hot-melt compound with a melting point between 70° C. and 150° C., e.g., urea. The combination of the blowing agent and the hot-melt compound, at recommended high contents, makes it possible to very greatly reduce an expansion ratio and therefore a thickness of the rubber layer once the pneumatic tire is vulcanized, without affecting noise absorption properties provided by the blowing agent.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: March 17, 2015
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Mitsue Tanaka, Salvatore Pagano
  • Patent number: 8981000
    Abstract: A polymer has at least the following characteristics: (a) a block styrene content containing 4 to 6 styrene units from about 27 to about 50 weight percent based on total styrene content in the polymer; (b) a vinyl content from about 30 to about 80 weight percent based on total amount of polymerized 1,3-butadiene; and (c) a styrene content from about 40 to about 70 weight percent based on total weight of polymer. Processes for the polymerization of such a polymer, compositions containing such a polymer, and articles containing at least one component formed from such a composition are described.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: March 17, 2015
    Assignee: Styron Europe GmbH
    Inventors: Evemarie Hamann, Silvia Valenti, Karin Schmiedel
  • Patent number: 8980392
    Abstract: The use of a functionalized organosilicon compound as a coupling agent between an inorganic filler and an elastomer in an elastomer composition including an isoprene elastomer and a reinforcing inorganic filler is disclosed. The compound is selected among functionalized organosilicon compounds including at least one double bond C?C or C?N, and not including any C?C—C?O bonds or N?N bonds, and reacting with the isoprene units according to an electrocyclic reaction, in particular according to a standard cycloaddition reaction [2+1], [2+2], [3+2] or a Diels-Alder reaction [4+2] or an ene-synthesis reaction other than an ene-synthesis reaction between an isoprene unit and a C?C—C?O or N?N function. Also described, are elastomer composition(s) obtained and items manufactured using such compositions.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: March 17, 2015
    Assignee: Rhodia Operations
    Inventors: Laurent Guy, Virginie Pevere, Thierry Vidal
  • Publication number: 20150059606
    Abstract: An object of the present invention is to provide a relief printing plate precursor for laser engraving that is excellent in rinsing properties for engraving residue and engraving sensitivity and can give a sharp engraved shape. Disclosed is a relief printing plate precursor for laser engraving comprising a relief-forming layer formed of a resin composition for laser engraving, or a crosslinked relief-forming layer obtained by crosslinking the relief-forming layer formed of the resin composition for laser engraving, wherein the resin composition for laser engraving comprises a binder polymer as Component A, and carbon black of which pH is higher than 6 and an average particle size when being dispersed into water is equal to or less than 500 nm as Component B.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Applicant: FUJIFILM CORPORATION
    Inventor: Yuichi YASUHARA
  • Patent number: 8962743
    Abstract: The present invention provides a copolymer of a conjugated diene compound and a non-conjugated olefin, in which the conjugated diene unit has cis-1,4 bonds and the non-conjugated olefin contains many ethylene structures. In a copolymer of a conjugated diene compound and an unconjugated olefin other than the conjugated diene compound, the conjugated diene unit has a cis-1,4 bond content of 50% or more and the unconjugated olefin is contained in an amount of 20 mol % or more.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: February 24, 2015
    Assignee: Bridgestone Corporation
    Inventors: Shojiro Kaita, Olivier Tardif, Yasuo Horikawa, Hideki Kitano
  • Patent number: 8962744
    Abstract: The present invention provides a random copolymer that is used for manufacturing a tire having excellent rollability and wear resistance and that includes randomly arranged monomer units of a conjugated diene compound and of a non-conjugated olefin, a rubber composition containing the random copolymer, a cross-linked rubber composition obtained by crosslinking the rubber composition, and a tire manufactured by using the rubber composition or the cross-linked rubber composition. A copolymer of a conjugated diene compound and a non-conjugated olefin, including a random copolymer having randomly arranged monomer units of the conjugated diene compound and of the non-conjugated olefin, and containing, by more than 30 mol %, a unit derived from the conjugated diene compound.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: February 24, 2015
    Assignee: Bridgestone Corporation
    Inventors: Yasuo Horikawa, Shojiro Kaita, Olivier Tardif, Junko Matsushita
  • Patent number: 8952101
    Abstract: For a tire excellent in strength, low-heat buildup property, wet grip property, and driveability, and a rubber composition and a conjugated diene rubber for the tire, a conjugated diene rubber of the present invention includes 5 wt % or more of a structure that 3 or more conjugated diene polymer chains are bound via a denaturing agent, obtained by reaction of each chain and the agent, each chain being that at least one of terminals is an isoprene block having 70 wt % or more of an isoprene monomer unit, and the other is an active terminal, the agent having, per molecule, at least one of an epoxy group(s) and a hydrocarbyloxysilyl group(s), and being that a total number of the epoxy group(s) and hydrocarbyloxy groups in the hydrocarbyloxysilyl group(s) per molecule is 3 or more.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: February 10, 2015
    Assignee: Zeon Corporation
    Inventors: Tatsuo Sasajima, Takeshi Karato, Takeshi Sugimura
  • Publication number: 20150018481
    Abstract: The invention relates to preparation of rubber reinforced with at least one of graphene and carbon nanotubes with specialized coupling agent and tire with component thereof.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 15, 2015
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Ralf Mruk, Annette Lechtenboehmer, Klaus Unseld, Claude Ernest Felix Boes, Frederic Gerard Auguste Siffer, Ling Du, Robert Fokko Roskamp, Leena Nebhani
  • Publication number: 20150011701
    Abstract: The polymer of the present invention is a synthesized polyisoprene or an isoprene copolymer. The polymer has a number average molecular weight (Mn) of 1.5 million or more when measured by using gel permeation chromatography (GPC).
    Type: Application
    Filed: March 6, 2013
    Publication date: January 8, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Junko Matsushita, Shojiro Kaita, Satoru Tamaki
  • Patent number: 8927644
    Abstract: A polymer having at least the following characteristics: (a) a block styrene content with more than 4 consecutive styrene units from about 40 to about 70 weight percent based on total styrene content in the polymer; (b) a vinyl content from about 25 to about 80 weight percent based on total amount of polymerized 1,3-diene; (c) a styrene content from about 20 to about 75 weight percent based on total weight of polymer; and (d) a molecular weight distribution (Mw/Mn) of 1.5 or less.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: January 6, 2015
    Assignee: Styron Europe GmbH
    Inventors: Evemarie Hamann, Silvia Valenti, Gabriele Holtz
  • Patent number: 8921468
    Abstract: A rubber composition for a tire includes a rubber component containing at least one of a natural rubber and an epoxidized natural rubber, silica and a natural based wax, wherein the silica is contained in an amount of 10 parts by mass or more based on 100 parts by mass of the rubber component and the natural based wax is contained in an amount of 1.2% by mass or more and 2% by mass or less based on the total mass of the rubber composition for a tire, and to a tread, a side wall, a clinch and a tire using the rubber composition.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: December 30, 2014
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Tomoaki Hirayama, Takao Wada, Noboru Wakabayashi, Keiji Ikeda
  • Publication number: 20140371385
    Abstract: The present invention relates to a method for recycling scrap rubber comprising the steps of pyrolyzing scrap rubber to obtain a char material and milling the thus obtained char material. The present invention also relates to carbon black powders and carbon black pellets obtained by the method according to the invention. Moreover, the present invention relates to the use of said carbon black powder and to compositions comprising said carbon black powders.
    Type: Application
    Filed: December 21, 2012
    Publication date: December 18, 2014
    Inventors: Arnoldus Henricus Adrianus Verberne, Jan Anne Jonkman, Christopher Michael Twigg
  • Publication number: 20140350173
    Abstract: The present invention provides a method for producing a rubber composition provided by compounding a rubber component (A) comprising at least one selected from natural rubbers and synthetic diene rubbers, a filler containing an inorganic filler (B), a silane coupling agent (C), and at least one vulcanization accelerator (D) selected from specific compounds, wherein the rubber composition is kneaded in a plurality of stages and wherein, in the first stage (X) of kneading, a portion (A?) of the rubber component (A), all or a portion of the inorganic filler (B), all or a portion of the silane coupling agent (C), and all or a portion of the vulcanization accelerator (D) are added and kneaded, and in or after the second stage of kneading, the residual portion (A?) of the rubber component (A) is added and kneaded, and the method for producing a rubber composition enables production of a rubber composition capable of suitably having a low-heat-generation property by further improving the coupling function activity o
    Type: Application
    Filed: December 21, 2012
    Publication date: November 27, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Shigeaki Matsuo
  • Publication number: 20140350174
    Abstract: The present invention relates to a method for producing a rubber composition obtained by compounding a rubber component (A) containing at least one kind selected from natural rubber and synthetic diene rubber, a filler containing an inorganic filler (B), a silane coupling agent (C), and thiourea, the method comprising kneading the rubber composition in plural stages, the rubber component (A), the whole or a part of the inorganic filler (B), the whole or a part of the silane coupling agent (C), and the thiourea being kneaded in the first stage of kneading, and thus provides a method for producing a rubber composition excellent in low-heat-generation property through enhancement of the reactivity between the coupling agent and the rubber component.
    Type: Application
    Filed: December 21, 2012
    Publication date: November 27, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Noriaki Yukimura, Satoshi Horie, Takumi Toda
  • Patent number: 8877831
    Abstract: Methods and compositions are provided that relate to weighted elastomers. The weighted elastomers may comprise an elastomer and a weighting agent attached to an outer surface of the elastomer. An embodiment includes a method of cementing that comprises providing a cement composition containing cement, water, and a weighted elastomer. In addition, the cement composition may be introduced into a subterranean formation and allowed to set therein.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: November 4, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Craig W. Roddy, Jeffery D. Karcher, Rickey L. Morgan, D. Chad Brenneis
  • Publication number: 20140308488
    Abstract: A composition containing adhesive agent including an adhesive agent component used for manufacturing a recorded material in which a face opposing to an image forming face of a recording medium, which has an image formed by an inkjet method, is bonded, includes polyisoprene as the adhesive agent component. At least a part of the polyisoprene is included in a state of particles.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 16, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kiyohiko TAKEMOTO, Masaru HOSHINO
  • Publication number: 20140303319
    Abstract: The present invention relates to a conjugated diene based polymer comprising a monomer unit derived from at least one conjugated diene selected from 1,3-butadiene and isoprene and a monomer unit derived from a compound represented by Formula (1): wherein n represents an integer of 0 to 5; R11, R12 and R13 each independently represent an alkyl group having 1 to 10 carbon atoms.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 9, 2014
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Mana FUJII
  • Patent number: 8852739
    Abstract: The invention relates to a carbon black with a CTAB surface area of from 20 to 49 m2/g, with a COAN greater than 90 ml/(100 g), and with a sum of OAN and COAN greater than 235 ml/(100 g). The carbon black is produced in a furnace reactor, where from 20 to 55% by weight of the feedstock used for the carbon black are introduced radially through a nozzle within the first third of the reaction zone, and the remaining amount of the feedstock used for the carbon black is introduced through a nozzle upstream at least one further point into the reactor. The carbon black can be used in rubber mixtures.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: October 7, 2014
    Assignee: Evonik Carbon Black GmbH
    Inventors: Arndt-Peter Schinkel, Michael Stanyschöfsky, Conny Vogler, Joachim Fröhlich, Bernhard Schwaiger, Thomas Pelster
  • Patent number: 8841361
    Abstract: A rubber composition includes an elastomer having an elongation at break (Eb) of about 50% or more according to ASTM-D 412 at 25° C., a water-insoluble keratin, and a reinforcing filler. A tire component including the composition and a method for making the composition are also disclosed.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: September 23, 2014
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Lori L. Shultz, Chenchy Jeffrey Lin
  • Publication number: 20140265031
    Abstract: A resin composition for laser engraving, comprises (Component A) an ethylenically unsaturated group-containing binder polymer; and (Component B) a tertiary ester group- and ethylenically unsaturated group-containing compound. The tertiary ester group in Component B is preferably a group represented by Formula (I). In Formula (I), R1 to R3 independently denote a monovalent hydrocarbon group, at least two of R1 to R3 may be bonded to each other to from at least one ring structure, and the wavy line portion denotes a position of bonding to another moiety.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 18, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Hayato YOSHIDA, Atsushi SUGASAKI
  • Patent number: 8821982
    Abstract: The invention relates to a method for the production of a tire sealant (C) with a polymeric base. A highly viscous first sealant component (A) (including a natural rubber component that is undiluted or diluted with at least one additional natural rubber component and mixture ingredients that are free of a solvent and an activator) is mixed with at least one second sealant component (B) (comprising a separately produced medium with low viscosity containing at least one activator), to combine to the tire sealant (C), wherein a cross linking occurs associated with the subsequent application of the tire sealant (C) to the inside of the tire. Appropriate method steps are disclosed.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: September 2, 2014
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Stefan Sostmann, Martin Welzhofer, Joe Guardalabene, Casper Van De Pol
  • Patent number: 8809449
    Abstract: Disclosed are a modified conjugated diene-based polymer capable of providing a polymer composition improved in tan ? balance, a polymer composition containing the modified conjugated diene-based polymer and silica, and a process for producing the modified conjugated diene-based polymer. The modified conjugated diene-based polymer is obtained by melt-kneading a conjugated diene-based polymer and 0.01 to 2 parts by weight of a Bunte salt per 100 parts by weight of the conjugated diene-based polymer, in the presence of water whose amount is from 0.1 to 1,000 parts by weight per one part by weight of the Bunte salt.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: August 19, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Hisakatsu Hama
  • Publication number: 20140212591
    Abstract: The present disclosure provides pre-treatment compositions and related methods. As such, a pre-treatment coating for a print medium can include an evaporable solvent, a matrix, and a wax. The matrix can include from 50 wt % to 80 wt % of a fixer and from 5 wt % to 20 wt % of a low Tg latex. The wax can be present at from 5 wt % to 30 wt %. The weight percentages of the matrix and the wax are based on a total amount present in the pre-treatment coating after removal of the solvent.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Jason Swei, Haigang Chen, Bor-Jiunn Niu
  • Publication number: 20140213696
    Abstract: Embodiments of the invention provide a method of processing natural rubber latex using an extruder including a plurality of process zones by processing coagulant with latex to produce a coagulum and serum. In some embodiments, the coagulant can include an acid, a metal salt, or a mixture of both. Some embodiments can include a coagulum wash stage, and a deresination step. In some embodiments, the extruder can be operated to move coagulum through the extruder to remove at least some fraction of water to form a substantially dewatered coagulum, and a drying step to form a dried coagulum. In some embodiments, a stabilizer such as an antioxidant can be introduced into the extruder, and processed to remain in some fraction in the dried coagulum. Some alternative embodiments include a latex processing method of providing a flow of coagulant, and combining latex with the flowing using an emulsion dispensing bar.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 31, 2014
    Applicant: Yulex Corporation
    Inventors: Jeff Martin, James Mitchell, Ray McCoy, Sebastian S. Plamthottam
  • Publication number: 20140202608
    Abstract: The invention relates to a rubber cement, fabricated tire tread and resulting tire, where the tire tread is fabricated by joining ends of an uncured rubber strip together with a silica coupler-containing rubber cement between opposing ends of the uncured tread rubber strip where the rubber strip contains a high content of hydrophobated precipitated silica and where the cement contains a silica coupling agent.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 24, 2014
    Inventor: Paul Harry Sandstrom
  • Publication number: 20140187711
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an unsaturated heterocycle containing an azolinyl group.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Inventors: Steven LUO, Joshua P. ABELL, Joshua S. DICKSTEIN