Patents Represented by Attorney Meredith E. Hooker
  • Patent number: 8349964
    Abstract: The present invention provides a polymer/metal nano-composite. The nano-composite includes at least one copolymer chain having alkenyl monomer units and maleimide monomer units, and a nano-sized metal or inorganic crystal. It also provides a method of producing nano-sized metal/inorganic crystals in pure form. These nano-composites and nano-crystals can be useful as polymer fillers, tire rubber compounds, semiconductors, nano-magnets, catalysts, and quantum dots etc.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: January 8, 2013
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, Pat Sadhukhan, Georg C. A. Böhm
  • Patent number: 8344066
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a nitrile compound containing a protected amino group.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: January 1, 2013
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Eiju Suzuki, Dennis R. Brumbaugh
  • Patent number: 8344049
    Abstract: A modified asphalt binder composition prepared by combining asphalt binder, phosphorus pentasulfide, and less than 2.5 parts by weight unsaturated polymer, per 100 parts by weight asphalt binder, to thereby produce a modified asphalt binder composition characterized by an elongation recovery at 25° C., as determined according to AASHTO T301, of greater than 75%.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: January 1, 2013
    Assignees: Firestone Polymers, LLC, Heritage Research Group
    Inventors: William L. Hergenrother, Peter W. Boerner, Christine Rademacher, Daniel F. Graves, Timothy P. Reece, Herbert L. Wissel
  • Patent number: 8338544
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of polymerizing monomer to form a reactive polymer, and reacting the reactive polymer with a protected polyoxime compound.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: December 25, 2012
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Patent number: 8324329
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of (a) polymerizing monomer in the presence of a coordination catalyst to form a polymer, (b) inhibiting said step of polymerizing with a Lewis base, and (c) reacting the polymer with a functionalizing agent.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: December 4, 2012
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Kevin M. McCauley, Timothy L. Tartamella, Mark W. Smale, Randhir Shetty
  • Patent number: 8314183
    Abstract: A functionalized polymer includes a directly bonded moiety, which can be located at a terminus of the polymer, defined by the formula CR1R2NH—O—]—Si where each R1 and R2 independently is a substituted or unsubstituted hydrocarbyl group and where the Si atom can be bonded through similar moieties to up to three other polymers and/or to the appropriate number of non-interfering groups. The polymer can be provided by introducing a ketoximesilane compound into a system that includes carbanionic (living) polymer. Such polymers can be used in the production of compositions that include particulate fillers.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: November 20, 2012
    Assignee: Bridgestone Corporation
    Inventors: Yaohong Chen, Yuan-Yong Yan
  • Patent number: 8314189
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with a heterocyclic nitrile compound.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: November 20, 2012
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Ryouji Tanaka, Kouichirou Tani
  • Patent number: 8299161
    Abstract: There is disclosed a composition comprising defatted soy flour and a natural rubber in aqueous or dried form. There is also disclosed rubber compositions comprising the compositions comprising defatted soy flour and a natural rubber. There is further disclosed use of the compositions comprising defatted soy flour and a natural rubber, as well as use of rubber compositions including the compositions comprising defatted soy flour and a natural rubber, in the production of various products such as pneumatic tires and tire components, and the like.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: October 30, 2012
    Assignee: Bridgestone Corporation
    Inventors: Terrence E. Hogan, William L. Hergenrother, Christopher Robertson, Maria Tallman
  • Patent number: 8288474
    Abstract: Alkoxy-modified silsesquioxane compounds are described. The alkoxy-modified silsesquioxane compounds contain an alkoxysilane group that participates in an alkoxysilane-silica reaction as a silica dispersing agent in rubber, with the release of zero to about 0.1% by weight of the rubber of volatile organic compounds (VOC), especially alcohol, during compounding and further processing. Further described are methods for making alkoxy-modified silsesquioxanes, methods for making vulcanizable rubber compounds containing alkoxy-modified silsesquioxanes, vulcanizable rubber compounds containing alkoxy-modified silsesquioxanes, and pneumatic tires comprising a component that contains alkoxy-modified silsesquioxanes.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: October 16, 2012
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Chenchy Jeffrey Lin, Terrence E. Hogan, Ashley S. Hilton
  • Patent number: 8288473
    Abstract: A disk-like nanoparticle includes a core layer that comprises a cross-linked multi-vinyl substituted aromatic hydrocarbon and a shell layer that comprises tri-block copolymer chains, each having a first, a second, and a third block. The first and third blocks of the tri-block copolymer chains comprise vinyl aromatic monomer units and are crosslinked with the core. The second block comprises conjugated diene monomer units and comprises a top and bottom axial surface of the disk-like nanoparticle. In the case of a nanoparticle having A-B-C tri-block copolymer chains, the third block comprises a top and bottom axial surface of the disk-like nanoparticle.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: October 16, 2012
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, Yuan-Yong Yan, Pat Sadhukhan
  • Patent number: 8268933
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of (i) polymerizing conjugated diene monomer by employing a lanthanide-based catalyst to form a reactive polymer, and (ii) reacting the reactive polymer with a polyimine compound.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: September 18, 2012
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Yuan-Young Yan
  • Patent number: 8258332
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer, and reacting the reactive polymer with a halosilane compound containing an amino group.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: September 4, 2012
    Assignee: Bridgestone Corporation
    Inventors: Terrence E. Hogan, Steven Luo, Yoichi Ozawa, Junko Matsushita, Ryuji Nakagawa, Eiju Suzuki, Ken Tanaka
  • Patent number: 8236888
    Abstract: A macromolecule including a polymer and a polyhedral radical chemically bonded to a terminus of the polymer provides numerous processing and performance advantages. Further functionalization of this macromolecule also is described as being advantageous in certain circumstances. Methods of providing, functionalizing, and utilizing the macromolecule also are provided.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: August 7, 2012
    Inventors: Yuan-Yong Yan, Jason Poulton, Xiaorong Wang, Hao Wang, Michelle A. Cottrell
  • Patent number: 8236892
    Abstract: A functionalized polymer includes a polymer chain and a terminal functionality that includes at least one disilylamino group. The polymer can be the reaction product of a terminally active polymer chain and a compound that includes at least one disilylamino group and a group capable of reacting with terminally active polymers. Methods for making and using such polymers also are provided, as are compositions containing the polymer and one or more types of filler particles as well as vulcanizates provided from such compositions.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: August 7, 2012
    Inventors: Steven Luo, Yoichi Ozawa, Jason Poulton, Dennis R Brumbaugh, Michael W. Hayes
  • Patent number: 8227562
    Abstract: A polymer includes at a terminus a cyclic amine radical bonded to the polymer through a ring nitrogen atom. The polymer can be provided by using a lithiated version of the cyclic amine to initiate polymerization of one or more ethylenically unsaturated monomers. The polymer can be used in the production in a variety of vulcanizates.
    Type: Grant
    Filed: March 15, 2009
    Date of Patent: July 24, 2012
    Assignee: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Michael W. Hayes
  • Patent number: 8210967
    Abstract: Elastomeric interpolymers comprising at least two, or more, cyclic olefin monomers that are prepared by ring opening metathesis polymerization, and that are characterized by having no crystallinity, a glass transition temperature (Tg) of less than ?80° C., and a number average molecular weight (Mn) of at least 40 kg/mole, and functionalized products thereof. A ring opening metathesis polymerization process for producing the elastomeric interpolymers having no crystallinity. Uses of the elastomeric interpolymers in applications such as rubber compounds, tires, and the like. Cores of golf balls that are prepared by using metathesis polymerization produced elastomeric interpolymers having 0 to about 30% crystallinity.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: July 3, 2012
    Assignee: Firestone Polymers, LLC
    Inventors: James Pawlow, Christopher Robertson, Daniel Graves, Mitch Barry
  • Patent number: 8207275
    Abstract: A functionalized polymer defined by the formula ?-R1-?, where ? is a polymer chain, R1 is a bond or a divalent organic group, and ? is a sulfur-containing heterocycle.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: June 26, 2012
    Assignee: Bridgestone Corporation
    Inventors: Terrence E. Hogan, Christine Rademacher, William Hergenrother, David F. Lawson
  • Patent number: 8188195
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a nitroso compound.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: May 29, 2012
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Patent number: 8188201
    Abstract: A process for preparing a polydiene, the process comprising the step of polymerizing conjugated diene monomer with a lanthanide-based catalyst system including the combination or reaction product of: (a) a lanthanide compound selected from the group consisting of lanthanide organophosphates, lanthanide organophosphonates, and lanthanide organophosphinates, (b) an alkylating agent, and (c) a chlorine-containing compound, where said step of polymerizing takes place within a polymerization mixture that includes less than 20% by weight of solvent based on the total weight of the polymerization mixture.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: May 29, 2012
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Kevin McCauley, Jason T. Poulton
  • Patent number: 8183326
    Abstract: A polymer includes directly bonded aromatic pendent groups and at least one moiety defined by one of the following formulas >N—N?CR1R2 or —N?N—CR1R2— where R1 and R2 (a) are independently H or a substituted or unsubstituted alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl, allyl, aralkyl, alkaryl, or alkynyl group, or (b) together form a substituted or unsubstituted alkylene, alkenylene, cycloalkylene, cycloalkenylene, or arylene group. The moiety can be attached to the polymer through one or both of the two open bonds and, where it is attached through only one bond, the other bond attaches to a hydrogen atom, i.e., the moiety is at a terminus of the polymer. Such polymers can be used to provide compositions that also include particulate fillers.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: May 22, 2012
    Assignee: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Dennis R. Brumbaugh, Steven Luo