Patents by Inventor Erin Sheepwash

Erin Sheepwash has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • FUNCTIONALIZED POLYMERS HAVING THERMORESPONSIVE BEHAVIOR
    Publication number: 20240336717
    Abstract: A thermoresponsive polymer defined by Formula V: where R1 is a hydrogen atom or a methyl group, Z is a hydrocarbylene glycol group, R3 is an hydrocarbyl group, q is an integer from about 1 to about 12 units, and ? is a polymer chain.
    Type: Application
    Filed: June 17, 2024
    Publication date: October 10, 2024
    Inventors: Joshua P. ABELL, Erin SHEEPWASH, Noriaki YUKIMURA
  • Functionalized polymers having thermoresponsive behavior
    Patent number: 12054573
    Abstract: A method for preparing a functionalized polymer includes the steps of (i) polymerizing monomer to form a reactive polymer; and (ii) reacting the reactive polymer with a [poly(hydrocarbylene glycol) hydrocarbyl ether] (meth)acrylate.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: August 6, 2024
    Assignee: Bridgestone Corporation
    Inventors: Joshua P. Abell, Erin Sheepwash, Noriaki Yukimura
  • POLYMER-FILLER COMPOSITES WITH GUAYULE RUBBER
    Publication number: 20240218165
    Abstract: A method for forming a polymer-filler composite having advantageous bound filler content, the method comprising (a) providing a guayule cement; (b) introducing particulate filler to the guayule cement to form a solution masterbatch; and (c) desolventizing the solution masterbatch to form a polymer-filler composite.
    Type: Application
    Filed: March 18, 2024
    Publication date: July 4, 2024
    Inventors: Michael R. HARTZELL, Robert W. WHITE, Piotr KOZMINSKI, Mark N. DEDECKER, Erin SHEEPWASH, Yingyi HUANG, William S. NIAURA
  • Polymer-filler composites with guayule rubber
    Patent number: 11932759
    Abstract: A method for forming a polymer-filler composite having advantageous bound filler content, the method comprising (a) providing a guayule cement; (b) introducing particulate filler to the guayule cement to form a solution masterbatch; and (c) desolventizing the solution masterbatch to form a polymer-filler composite.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: March 19, 2024
    Assignee: Bridgestone Corporation
    Inventors: Michael R. Hartzell, Robert W. White, Piotr Kozminski, Mark N. Dedecker, Erin Sheepwash, Yingyi Huang, William S. Niaura
  • Sidewall supports for pneumatic tires
    Patent number: 11926179
    Abstract: A method of preparing a sidewall support, the method comprising the steps of (i) providing a vulcanizable composition including an elastomer, a filler, a curative, and a eutectic composition; (ii) fabricating the vulcanizable composition into a green sidewall support; and (iii) subjecting the green sidewall support to curing conditions.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: March 12, 2024
    Assignee: Bridgestone Corporation
    Inventors: Erin Sheepwash, Ryan J. Hue
  • RUBBER VULCANIZATION PROCESSES EMPLOYING A EUTECTIC MIXTURE
    Publication number: 20240059848
    Abstract: A process for preparing a rubber vulcanizate, the process comprising (i) providing a vulcanizable composition of matter including a sulfur-based curative and a eutectic composition blend, where the eutectic composition blend includes a eutectic composition and an inert carrier; and (ii) heating the vulcanizable composition to thereby effect vulcanization.
    Type: Application
    Filed: January 12, 2022
    Publication date: February 22, 2024
    Inventors: Erin SHEEPWASH, Anthony COFFMAN
  • RUBBER VULCANIZATION PROCESSES EMPLOYING AN EUTECTIC MIXTURE
    Publication number: 20230374279
    Abstract: A process for preparing a rubber vulcanizate, the process comprising (i) providing a vulcanizable composition of matter including a sulfur-based curative, zinc oxide, and a eutectic solvent; and (ii) heating the vulcanizable composition to thereby effect vulcanization.
    Type: Application
    Filed: May 26, 2023
    Publication date: November 23, 2023
    Inventors: Erin SHEEPWASH, Julia A. DART, Michael C. DAVIS
  • Rubber vulcanization processes employing an eutectic mixture
    Patent number: 11667774
    Abstract: A process for preparing a rubber vulcanizate, the process comprising (i) providing a vulcanizable composition of matter including a sulfur-based curative, zinc oxide, and a eutectic solvent; and (ii) heating the vulcanizable composition to thereby effect vulcanization.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: June 6, 2023
    Assignee: Bridgestone Corporation
    Inventors: Erin Sheepwash, Julia A. Dart, Michael C. Davis
  • RUBBER COMPOSITIONS PREPARED WITH A POLAR POLYSULFIDE CROSSLINKING AGENT
    Publication number: 20230030838
    Abstract: A vulcanizate prepared by a method comprising introducing an elastomer, a filler, and a polar polysulfide crosslinking agent to form a masterbatch and introducing a curative to the masterbatch to form a vulcanizable composition. Vulcanizing the composition to graft the polar group from the crosslinking agent onto an elastomer to increase the hydrophilicity of the composition.
    Type: Application
    Filed: December 30, 2020
    Publication date: February 2, 2023
    Inventors: Erin Sheepwash, Rita E. Cook
  • CURED RUBBER NETWORK WITH COVALENT AND HYDROGEN-BONDED CROSSLINKS
    Publication number: 20220403056
    Abstract: A vulcanizate is provided that includes a crosslinked network of elastomeric polymer having hydrogen bonds and covalent bonds. A method for preparing a functionalized elastomeric polymer and a method for preparing the vulcanizate are also provided.
    Type: Application
    Filed: November 16, 2020
    Publication date: December 22, 2022
    Inventors: Erin SHEEPWASH, Walter A. SALAMANT, Paul N. HAMILTON
  • Rubber Compositions For Pneumatic Tires
    Publication number: 20220235203
    Abstract: A vulcanizable rubber composition comprising (i) a rubber component including a polyisoprene elastomer, (ii) a sulfur-based curative, (iii) zinc oxide, and (iv) a eutectic composition.
    Type: Application
    Filed: April 26, 2020
    Publication date: July 28, 2022
    Applicant: Bridgestone Corporation
    Inventor: Erin Sheepwash
  • Sidewall Supports For Pneumatic Tires
    Publication number: 20220203782
    Abstract: A method of preparing a sidewall support, the method comprising the steps of (i) providing a vulcanizable composition including an elastomer, a filler, a curative, and a eutectic composition; (ii) fabricating the vulcanizable composition into a green sidewall support; and (iii) subjecting the green sidewall support to curing conditions.
    Type: Application
    Filed: April 29, 2020
    Publication date: June 30, 2022
    Applicant: Bridgestone Corporation
    Inventors: Erin Sheepwash, Ryan J. Hue
  • FUNCTIONALIZED POLYMERS HAVING THERMORESPONSIVE BEHAVIOR
    Publication number: 20210238336
    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 a [poly(hydrocarbylene glycol) hydrocarbyl ether] (meth)acrylate.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 5, 2021
    Inventors: Joshua P. ABELL, Erin SHEEPWASH, Noriaki YUKIMURA
  • Rubber Vulcanization Processes Employing An Eutectic Mixture
    Publication number: 20210198459
    Abstract: A process for preparing a rubber vulcanizate, the process comprising (i) providing a vulcanizable composition of matter including a sulfur-based curative, zinc oxide, and a eutectic solvent; and (ii) heating the vulcanizable composition to thereby effect vulcanization.
    Type: Application
    Filed: October 31, 2018
    Publication date: July 1, 2021
    Applicant: Bridgestone Corporation
    Inventors: Erin Sheepwash, Julia A. Dart, Michael C. Davis