Patents by Inventor William L. Hergenrother

William L. Hergenrother 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).

  • Patent number: 10584234
    Abstract: An antioxidant precursor compound represented by the formula where R2 through R6 are each independently a hydrogen atom or a monovalent organic group, R7 and R8 are each independently a monovalent organic group, R9 is a hydrogen atom or a blocking group, and R10 is a covalent bond or a divalent organic group, with the proviso that at least one of R2 and R6 are sterically bulky groups.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: March 10, 2020
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Sheel P. Agarwal, William L. Hergenrother
  • Publication number: 20190389992
    Abstract: A nanoparticle includes a copolymer comprising a vinyl-aromatic monomer and a heterocyclic monomer. The copolymer is crosslinked with a multifunctional crosslinking agent polymerizable through an addition reaction. A nanoparticle and elastomer composition is disclosed. Several methods of mixing heterocyclic and non-heterocyclic monomer nanoparticles into an elastomer are also disclosed. These methods include mixing in a multi-elements static mixer and an intermeshing mixer with venting, among others.
    Type: Application
    Filed: September 9, 2019
    Publication date: December 26, 2019
    Inventors: William L. Hergenrother, Waruna C.B. Kiridena, James H. Pawlow, James D. Ulmer, Christopher G. Robertson, Michael C. David, Jeffrey D. Quinn
  • Patent number: 10407522
    Abstract: A nanoparticle includes a copolymer comprising a vinyl-aromatic monomer and a heterocyclic monomer. The copolymer is crosslinked with a multifunctional crosslinking agent polymerizable through an addition reaction. A nanoparticle and elastomer composition is disclosed. Several methods of mixing heterocyclic and non-heterocyclic monomer nanoparticles into an elastomer are also disclosed. These methods include mixing in a multi-elements static mixer and an intermeshing mixer with venting, among others.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: September 10, 2019
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Waruna C. B. Kiridena, James H. Pawlow, James D. Ulmer, Christopher G. Robertson, Michael Davis, Jeffrey Quinn
  • Patent number: 10253163
    Abstract: A polymeric composition includes a diene elastomer; an azodicarboxy compound; and a reinforcing filler comprising silica. The composition is not foamed. A method for preparing a polymeric composition includes mixing in one or more steps: a diene elastomer; an azodicarboxy compound; and a reinforcing filler. The mixing temperature is less than 160° C. in mixing steps in which the azodicarboxy compound is present. In an embodiment, the mixing temperature is kept below the decomposition temperature of the azodicarboxy compound.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: April 9, 2019
    Assignee: Bridgestone Corporation
    Inventors: Arif O. Gozen, Christopher G. Robertson, William L. Hergenrother
  • Publication number: 20180291151
    Abstract: A functionalized polyamide is prepared by reacting a multifunctional organic compound with an amide monomer in an aqueous liquid at elevated temperature. In the reaction, the multifunctional organic compound is a multifunctional acid compound or a multifunctional amine compound. The amide monomer is preferably a lactam compound. The functionalized polyamide, such as nylon, includes a multifunctional acid or multifunctional amine terminal end that results in increased crystallinity above 30% and an enthalpy of at least 60 J/g.
    Type: Application
    Filed: April 10, 2018
    Publication date: October 11, 2018
    Inventors: Laura S. Kocsis, William L. Hergenrother, Terrence E. Hogan
  • Publication number: 20180291152
    Abstract: A functionalized polyamide is prepared by reacting a thio acid with an amide monomer or a mixture of a diamine and a dicarboxylic acid. In the reaction, the amide monomer is preferably a lactam compound, the thio acid has a formula of HOOC-A-SH wherein A represents an alkylene group containing from 1 to 10 carbon atoms, the diamine is an aliphatic diamine and the dicarboxylic acid is a aliphatic dicarboxylic acid. The functionalized polyamide can be vulcanized directly with rubber, which results in the use of less dip for adhering the tire cord to the rubber.
    Type: Application
    Filed: April 10, 2018
    Publication date: October 11, 2018
    Inventors: Laura S. Kocsis, William L. Hergenrother, Terrence E. Hogan, Kevin J. Bishop, Waruna C.B. Kiridena
  • Patent number: 9914823
    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: January 9, 2017
    Date of Patent: March 13, 2018
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Lorri L. Shultz, Chenchy Jeffrey Lin
  • Patent number: 9868805
    Abstract: Embodiments provide polydienes and diene copolymers having organophosphines functionality. Specific embodiments employ phosphorus-containing organometal initiators and copolymers prepared by anionically polymerizing conjugated diene monomer and vinyl organophosphine.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: January 16, 2018
    Assignee: Bridgestone Corporation
    Inventors: Terrence E. Hogan, William L. Hergenrother, David M. Roggeman
  • Publication number: 20170369739
    Abstract: A coated wire includes a steel alloy coated with a coating comprising one or more amino alkoxy-modified silsesquioxane compounds selected from the group consisting of an amino alkoxy-modified silsesquioxane, an amino/mercaptan co-alkoxy-modified silsesquioxane, an amino/blocked mercaptan co-alkoxy-modified silsesquioxane, or a salt of one or more thereof. A rubber composition and a process for coating wire is also disclosed.
    Type: Application
    Filed: December 30, 2015
    Publication date: December 28, 2017
    Applicants: Bridgestone Corporation, Bridgestone Americas Tire Operations, LLC
    Inventors: William L. Hergenrother, William J. Corsaut, Hiroshi Mouri
  • Patent number: 9725580
    Abstract: A composition includes an elastomer and a ketoximo silane or a ketoxime additive.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: August 8, 2017
    Assignee: Bridgestone Corporation
    Inventors: Chenchy J. Lin, Yaohong Chen, Atsushi Fukushima, William L. Hergenrother, Terrence E. Hogan
  • Patent number: 9657157
    Abstract: A rubber composition is provided that includes a partially halogenated diene polymer that has a controllable microstructure, and no more than about 50% of the n repeat units are in blocks of three or more consecutive units. In embodiments, a reinforcing filler is also included in the rubber composition. In embodiment, the rubber composition is formed into a tire component. A method of making the composition is also provided.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: May 23, 2017
    Assignee: Bridgestone Corporation
    Inventors: Amy M. Randall, Yaohong Chen, William L. Hergenrother, Sheel P. Agarwal
  • Publication number: 20170114213
    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: Application
    Filed: January 9, 2017
    Publication date: April 27, 2017
    Applicant: Bridgestone Corporation
    Inventors: William L. Hergenrother, Lorri L. Shultz, Chenchy Jeffrey Lin
  • Patent number: 9540503
    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: September 22, 2014
    Date of Patent: January 10, 2017
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Lorri L. Shultz, Chenchy Jeffrey Lin
  • Patent number: 9512263
    Abstract: A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer; (ii) reacting the reactive polymer with a polyisocyanate having a functionality of X to form an intermediate polymer product; and (iii) reacting the intermediate polymer product with a polyol having a functionality of Y to form the coupled polymer product, where X+Y?5.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: December 6, 2016
    Assignee: Bridgestone Corporation
    Inventors: Kevin M. McCauley, Terrence E. Hogan, William L. Hergenrother
  • Publication number: 20160347777
    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: Application
    Filed: August 1, 2016
    Publication date: December 1, 2016
    Inventors: William L. Hergenrother, Chenchy J. Lin, Terrence E. Hogan, Ashley S. Hilton
  • Patent number: 9499651
    Abstract: A process for preparing a copolymer including one or more phosphorus-containing mer units, the process comprising anionically polymerizing conjugated diene monomer, vinyl organophosphine monomer, and optionally monomer copolymerizable therewith.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: November 22, 2016
    Assignee: Bridgestone Corporation
    Inventors: Terrence E. Hogan, William L. Hergenrother
  • Patent number: 9447244
    Abstract: Methods of forming blocked-mercapto alkoxy-modified silsesquioxanes are provided. The blocked-mercapto 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 as alcohol (a volatile organic compound (VOC)), during compounding and further processing. The blocked-mercapto alkoxy-modified silsesquioxane compounds also contain a blocked mercapto group which, when de-blocked, allows the mercapto group to interact with the polymer(s) in a rubber composition. Further described are rubber compounds containing the blocked-mercapto alkoxy-modified silsesquioxanes.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: September 20, 2016
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Chenchy Jeffrey Lin, James H. Pawlow, Terrence E. Hogan
  • Patent number: 9428604
    Abstract: A nanoparticle includes a copolymer comprising a vinyl-aromatic monomer and a heterocyclic monomer. The copolymer is crosslinked with a multifunctional crosslinking agent polymerizable through an addition reaction. A nanoparticle and elastomer composition is disclosed. Several methods of mixing heterocyclic and non-heterocyclic monomer nanoparticles into an elastomer are also disclosed. These methods include mixing in a multi-elements static mixer and an intermeshing mixer with venting, among others.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: August 30, 2016
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Waruna C. B. Kiridena, James H. Pawlow, James D. Ulmer, Christopher G. Robertson, Michael Davis
  • Patent number: 9403969
    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: October 15, 2012
    Date of Patent: August 2, 2016
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Chenchy J. Lin, Terrence E. Hogan, Ashley S. Hilton
  • Patent number: 9365700
    Abstract: Amino alkoxy-modified silsesquioxanes (amino AMS), and/or amino co-AMS compounds that also comprise a mercaptosilane or a blocked mercaptosilane, are excellent adhesives for coating plated or unplated metal wire for adherence of the wire to a rubber stock. The amino AMS and/or the amino/mercaptan co-AMS adhesives can be used with all types of rubber and there is no requirement for the use of special adhesive additives to the rubber vulcanizates, such as, but not limited to, cobalt, resins and high sulfur levels. In particular, the use of amino AMS and/or amino/mercaptan co-AMS compounds as adhesives for bonding wire to rubber also improves the adherence performance of the reinforcements to obtain sufficient bonding that is resistant to degradation over the course of time, especially resistance to thermal aging and/or thermo-oxidizing aging, in particular corrosion in the presence of water.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: June 14, 2016
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Walter Tomaszewski, Ashley Hilton, Michael Hayes, James H. Pawlow, Terrence E. Hogan