Patents by Inventor Walter A. Salamant

Walter A. Salamant 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).

  • Publication number: 20240279401
    Abstract: A functionalized macromolecule includes a hydrogenated interpolymer portion, a non-hydrogenated polymer portion, and the radical of a functional coupling agent covalently bonded to and linking those portions. The functional group of the coupling agent exhibits interactivity with silica. The interpolymer can include vinyl aromatic mer and conjugated diene mer, with at least some of the latter, typically at least 50 mole percent, having been hydrogenated.
    Type: Application
    Filed: April 29, 2024
    Publication date: August 22, 2024
    Inventors: Yuan Liu, Ryan Hue, Laura S. Kocsis, Walter A. Salamant, Jeffrey M. Magistrelli
  • Patent number: 11970581
    Abstract: A functionalized macromolecule includes a hydrogenated interpolymer portion, a non-hydrogenated polymer portion, and the radical of a functional coupling agent covalently bonded to and linking those portions. The functional group of the coupling agent exhibits interactivity with silica. The interpolymer can include vinyl aromatic mer and conjugated diene mer, with at least some of the latter, typically at least 50 mole percent, having been hydrogenated.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: April 30, 2024
    Assignee: Bridgestone Corporation
    Inventors: Yuan Liu, Ryan Hue, Laura S. Kocsis, Walter A. Salamant, Jeffrey M. Magistrelli
  • Publication number: 20240034839
    Abstract: A functionalized macromolecule includes a hydrogenated interpolymer portion, a non-hydrogenated polymer portion, and the radical of a functional coupling agent covalently bonded to and linking those portions. The functional group of the coupling agent exhibits interactivity with silica. The interpolymer can include vinyl aromatic mer and conjugated diene mer, with at least some of the latter, typically at least 50 mole percent, having been hydrogenated.
    Type: Application
    Filed: December 29, 2021
    Publication date: February 1, 2024
    Inventors: Yuan Liu, Ryan Hue, Laura S. Kocsis, Walter A. Salamant, Jeffrey M. Magistrelli
  • Patent number: 11884767
    Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: January 30, 2024
    Assignee: Bridgestone Corporation
    Inventors: Hyeonjae Kim, Walter A. Salamant, Noriaki Yukimura, Steven Luo
  • Publication number: 20230089837
    Abstract: A process for preparing a polydiene, the process comprising (i) preparing an active catalyst composition by combining a rare-earth compound including a rare-earth metal, an alkylating agent, an aluminoxane, and optionally a halogen-containing compound, where the catalyst composition includes halogen at molar ratio to the rare-earth metal of from about 0.5:1 to about 2.0:1; and (ii) introducing the active catalyst composition to conjugated diene monomer.
    Type: Application
    Filed: December 22, 2020
    Publication date: March 23, 2023
    Inventors: Steven M. BALDWIN, Walter A. SALAMANT
  • Publication number: 20230038639
    Abstract: A process for preparing a polydiene, the process comprising (i) forming an active catalyst composition by combining a rare-earth compound, an alkylating agent, an aluminoxane, and a halogen compound; and (ii) combining the active catalyst composition with monomer to be polymerized within 12 hours of forming the active catalyst composition.
    Type: Application
    Filed: December 22, 2020
    Publication date: February 9, 2023
    Inventors: Steven M. BALDWIN, Walter A. SALAMANT
  • 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
  • Publication number: 20220119573
    Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Inventors: Hyeonjae KIM, Walter A. SALAMANT, Noriaki YUKIMURA, Steven LUO
  • Patent number: 11230622
    Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 25, 2022
    Assignee: Bridgestone Corporation
    Inventors: Hyeonjae Kim, Walter A. Salamant, Noriaki Yukimura, Steven Luo
  • Publication number: 20210340306
    Abstract: Embodiments of the present disclosure are directed to functionalized copolymers produced by copolymerization of at least one conjugated diolefin monomer and at least one vinyl monomer, the functionalized copolymer including at least one functional group having silica reactive moieties, wherein the functionalized copolymer has a degree of hydrogenation of 75% to 98 mol % as measured using proton nuclear magnetic resonance spectroscopy (1H NMR). In one or more embodiments, the silane modifier may include an oxygen-containing moiety, wherein the oxygen atom of the oxygen-containing moiety may not be directly bonded with the silicon atom.
    Type: Application
    Filed: June 20, 2019
    Publication date: November 4, 2021
    Applicant: Bridgestone Corporation
    Inventors: Noriaki Yukimura, Michael R. Beaulieu, Zengquan Qin, Jeffrey M. Magistrelli, Walter A. Salamant, Ryan J. Hue, Shu Wang, Laura S. Kocsis
  • Patent number: 10975178
    Abstract: A method of preparing a silane-functionalized polymer, the method comprising: preparing a polymerization system including a cis-1,4-polydiene by introducing a lanthanide-based catalyst and a conjugated diene monomer; and adding a hydrosilane compound to the polymerization system including a cis-1,4-polydiene.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: April 13, 2021
    Assignee: Bridgestone Corporation
    Inventors: Steven M. Baldwin, Walter A. Salamant
  • Publication number: 20190359755
    Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.
    Type: Application
    Filed: November 9, 2017
    Publication date: November 28, 2019
    Applicant: Bridgestone Corporation
    Inventors: Hyeonjae Kim, Walter A. Salamant, Noriaki Yukimura, Steven Luo
  • Publication number: 20190211120
    Abstract: A method of preparing a silane-functionalized polymer, the method comprising: preparing a polymerization system including a cis-1,4-polydiene by introducing a lanthanide-based catalyst and a conjugated diene monomer; and adding a hydrosilane compound to the polymerization system including a cis-1,4-polydiene.
    Type: Application
    Filed: September 1, 2017
    Publication date: July 11, 2019
    Applicant: Bridgestone Corporation
    Inventors: Steven M. Baldwin, Walter A. Salamant