Patents by Inventor Daniel F. Graves

Daniel F. Graves 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: 20190330403
    Abstract: A method for the preparation of block copolymers including at least one high vinyl segment, the method comprising (i) charging into a reactor a diene monomer in a hydrocarbon solvent, a catalytically effective amount of anionic initiator, and an oligomeric oxolanyl propane, whereby the reactor is optionally cooled; (ii) allowing the diene monomer to polymerize at a peak polymerization temperature of at least about 18° C. and less than about 60° C. to form a first block where the vinyl content is at least about 50 percent by weight; (iii) after step (ii), charging into the reactor a vinyl aromatic monomer, whereby the reactor is optionally heated to a temperature up to about 60° C.; (iv) allowing the vinyl aromatic monomer to polymerize to form a second block; and (v) optionally charging into the reactor a quenching agent.
    Type: Application
    Filed: July 10, 2019
    Publication date: October 31, 2019
    Inventors: Christine M. RADEMACHER, Daniel F. GRAVES
  • Patent number: 10400056
    Abstract: A method for the preparation of block copolymers including at least one high vinyl segment, the method comprising (i) charging into a reactor a diene monomer in a hydrocarbon solvent, a catalytically effective amount of anionic initiator, and an oligomeric oxolanyl propane, whereby the reactor is optionally cooled; (ii) allowing the diene monomer to polymerize at a peak polymerization temperature of at least about 18° C. and less than about 60° C. to form a first block where the vinyl content is at least about 50 percent by weight; (iii) after step (ii), charging into the reactor a vinyl aromatic monomer, whereby the reactor is optionally heated to a temperature up to about 60° C.; (iv) allowing the vinyl aromatic monomer to polymerize to form a second block; and (v) optionally charging into the reactor a quenching agent.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: September 3, 2019
    Assignee: Firestone Polymers, LLC
    Inventors: Christine M. Rademacher, Daniel F. Graves
  • Publication number: 20180291135
    Abstract: A method for the preparation of block copolymers including at least one high vinyl segment, the method comprising (i) charging into a reactor a diene monomer in a hydrocarbon solvent, a catalytically effective amount of anionic initiator, and an oligomeric oxolanyl propane, whereby the reactor is optionally cooled; (ii) allowing the diene monomer to polymerize at a peak polymerization temperature of at least about 18° C. and less than about 60° C. to form a first block where the vinyl content is at least about 50 percent by weight; (iii) after step (ii), charging into the reactor a vinyl aromatic monomer, whereby the reactor is optionally heated to a temperature up to about 60° C.; (iv) allowing the vinyl aromatic monomer to polymerize to form a second block; and (v) optionally charging into the reactor a quenching agent.
    Type: Application
    Filed: June 14, 2018
    Publication date: October 11, 2018
    Inventors: Christine M. RADEMACHER, Daniel F. GRAVES
  • Patent number: 10005874
    Abstract: A method for the preparation of block copolymers including at least one high vinyl segment, the method comprising (i) charging into a reactor a diene monomer in a hydrocarbon solvent, a catalytically effective amount of anionic initiator, and an oligomeric oxolanyl propane, whereby the reactor is optionally cooled; (ii) allowing the diene monomer to polymerize at a peak polymerization temperature of at least about 18° C. and less than about 60° C. to form a first block where the vinyl content is at least about 50 percent by weight; (iii) after step (ii), charging into the reactor a vinyl aromatic monomer, whereby the reactor is optionally heated to a temperature up to about 60° C.; (iv) allowing the vinyl aromatic monomer to polymerize to form a second block; and (v) optionally charging into the reactor a quenching agent.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: June 26, 2018
    Assignee: Bridgestone Corporation
    Inventors: Christine M. Rademacher, Daniel F. Graves
  • Patent number: 9840619
    Abstract: A process for producing a styrene-butadiene diblock copolymer-containing blend that is not an agglomeration, that involves mixing a styrene-butadiene multiblock thermoplastic elastomer solution with a styrene-butadiene diblock copolymer solution. Blends comprising a styrene-butadiene diblock copolymer and a styrene-butadiene multiblock thermoplastic elastomer, which blends are not an agglomeration.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: December 12, 2017
    Assignee: Firestone Polymers, LLC
    Inventors: Daniel F. Graves, Peter W. Boerner, John R. Schreffler, Christine M. Rademacher
  • Publication number: 20170342187
    Abstract: A method for the preparation of block copolymers including at least one high vinyl segment, the method comprising (i) charging into a reactor a diene monomer in a hydrocarbon solvent, a catalytically effective amount of anionic initiator, and an oligomeric oxolanyl propane, whereby the reactor is optionally cooled, to form a first batch; (ii) allowing the monomer to polymerize at a peak polymerization temperature of at least about 18° C. and less than about 60° C. to form a first block where the vinyl content is at least about 50 percent by weight; (iii) charging into the reactor a vinyl aromatic monomer, whereby the reactor is optionally heated to a temperature up to about 60° C., to form a second batch; (iv) allowing the monomer to polymerize the second batch to fully convert all monomer to form a second block; and (v) charging into the reactor a quenching agent.
    Type: Application
    Filed: August 1, 2017
    Publication date: November 30, 2017
    Inventors: Christine M. RADEMACHER, Daniel F. GRAVES
  • Publication number: 20170335045
    Abstract: A method for the preparation of block copolymers including at least one high vinyl segment, the method comprising (i) charging into a reactor a diene monomer in a hydrocarbon solvent, a catalytically effective amount of anionic initiator, and an oligomeric oxolanyl propane, whereby the reactor is optionally cooled; (ii) allowing the diene monomer to polymerize at a peak polymerization temperature of at least about 18° C. and less than about 60° C. to form a first block where the vinyl content is at least about 50 percent by weight; (iii) after step (ii), charging into the reactor a vinyl aromatic monomer, whereby the reactor is optionally heated to a temperature up to about 60° C.; (iv) allowing the vinyl aromatic monomer to polymerize to form a second block; and (v) optionally charging into the reactor a quenching agent.
    Type: Application
    Filed: August 1, 2017
    Publication date: November 23, 2017
    Inventors: Christine M. RADEMACHER, Daniel F. GRAVES
  • Patent number: 9732178
    Abstract: A method for the preparation of block copolymers including at least one high vinyl segment, the method comprising (i) charging into a reactor a diene monomer in a hydrocarbon solvent, a catalytically effective amount of anionic initiator, and an oligomeric oxolanyl propane, whereby the reactor is optionally cooled; (ii) allowing the diene monomer to polymerize at a peak polymerization temperature of at least about 18° C. and less than about 60° C. to form a first block where the vinyl content is at least about 50 percent by weight; (iii) after step (ii), charging into the reactor a vinyl aromatic monomer, whereby the reactor is optionally heated to a temperature up to about 60° C.; (iv) allowing the vinyl aromatic monomer to polymerize to form a second block; and (v) optionally charging into the reactor a quenching agent.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: August 15, 2017
    Assignee: Bridgestone Corporation
    Inventors: Christine M. Rademacher, Daniel F. Graves
  • Publication number: 20150218363
    Abstract: A process for producing a styrene-butadiene diblock copolymer-containing blend that is not an agglomeration, that involves mixing a styrene-butadiene multiblock thermoplastic elastomer solution with a styrene-butadiene diblock copolymer solution. Blends comprising a styrene-butadiene diblock copolymer and a styrene-butadiene multiblock thermoplastic elastomer, which blends are not an agglomeration.
    Type: Application
    Filed: April 14, 2015
    Publication date: August 6, 2015
    Inventors: Daniel F. GRAVES, Peter W. BOERNER, John R. SCHREFFLER
  • Patent number: 8754169
    Abstract: A method for forming a rubber-modified polymeric composition includes polymerizing vinyl aromatic monomer within a mixture including the vinyl aromatic monomer and an interpolymer having at least one block of polyisoprene, at lest one block of polystyrene, and at lest one block of polybutadiene to thereby form the rubber-modified polymeric composition, where the interpolymer includes an internal block of polyisoprene.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 17, 2014
    Assignee: Bridgestone Corporation
    Inventors: Mark N. Dedecker, James E. Hall, Daniel F. Graves
  • Patent number: 8378034
    Abstract: Adducts of an unsaturated metathesis polymer or interpolymer and an unsaturated diacid anhydride. A process for producing adducts of an unsaturated metathesis polymer or interpolymer and unsaturated diacid anhydride.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: February 19, 2013
    Assignee: Firestone Polymers, LLC
    Inventors: James H. Pawlow, William L. Hergenrother, Mark N. Dedecker, Daniel F. Graves
  • Publication number: 20130041105
    Abstract: A process for preparing a rubber comprising polymeric composition, and the resulting compositions, and certain isoprene comprising interpolymers.
    Type: Application
    Filed: September 14, 2012
    Publication date: February 14, 2013
    Inventors: Mark N. DEDECKER, James E. Hall, Daniel F. Graves
  • 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: 8124677
    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%, where the phosphorus pentasulfide includes a blend of P4S10 and P4S9.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: February 28, 2012
    Assignees: Firestone Polymers, LLC, Heritage Research Group
    Inventors: William L. Hergenrother, Peter W. Boerner, Daniel F. Graves, Christine Rademacher, Timothy P. Reece, Herbert L. Wissel
  • Publication number: 20110251347
    Abstract: A process for producing a styrene-butadiene diblock copolymer-containing blend that is not an agglomeration, that involves mixing a styrene-butadiene multiblock thermoplastic elastomer solution with a styrene-butadiene diblock copolymer solution. Blends comprising a styrene-butadiene diblock copolymer and a styrene-butadiene multiblock thermoplastic elastomer, which blends are not an agglomeration.
    Type: Application
    Filed: August 5, 2009
    Publication date: October 13, 2011
    Inventors: Daniel F. Graves, Peter W. Boerner, John R. Schreffler, Christine M. Rademacher
  • Publication number: 20110105651
    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%, where the phosphorus pentasulfide includes a blend of P4S10 and P4S9.
    Type: Application
    Filed: September 14, 2010
    Publication date: May 5, 2011
    Inventors: William L. Hergenrother, Peter W. Boerner, Daniel F. Graves, Christine Rademacher, Timothy P. Reece, Herbert L. Wissel
  • Publication number: 20110105652
    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: Application
    Filed: September 14, 2010
    Publication date: May 5, 2011
    Inventors: William L. Hergenrother, Peter W. Boerner, Christine Rademacher, Daniel F. Graves, Timothy P. Reece, Herbert L. Wissel
  • Patent number: 7902309
    Abstract: Compositions and polydiene production processes involving catalyst systems comprising at least one lanthanide-containing compound, at least one alkylating agent, at least one halogen source, and at least one N,N-dihydrocarbylhydroxylamine.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: March 8, 2011
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Jason T. Poulton, Daniel F. Graves
  • Patent number: 7820739
    Abstract: A method for forming a modified asphalt binder composition, the method comprising preparing a phosphorus pentasulfide-binder concentrate by introducing and mixing phosphorus pentasulfide and asphalt binder, where the phosphorus pentasulfide-binder concentrate includes greater than 0.5 parts by weight phosphorus pentasulfide per 100 parts by weight asphalt, preparing a polymer-binder concentrate by introducing and mixing polymer and asphalt binder, where the polymer-binder concentrate includes greater than 5 parts by weight polymer per 100 parts by weight asphalt, and introducing and mixing the phosphorus pentasulfide-binder concentrate with the polymer-binder concentrate to form a modified asphalt binder composition, where the phosphorus pentasulfide includes a blend of P4S10 and P4S9.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: October 26, 2010
    Inventors: William L. Hergenrother, Peter W. Boerner, Daniel F. Graves, Christine Rademacher, Timothy P. Reece, Herbert L. Wissel
  • Patent number: 7816429
    Abstract: A method for forming a modified asphalt binder composition, the method comprising preparing a phosphorus pentasulfide-binder concentrate by introducing and mixing phosphorus pentasulfide and asphalt binder, where the phosphorus pentasulfide-binder concentrate includes greater than 0.5 parts by weight phosphorus pentasulfide per 100 parts by weight asphalt, preparing a polymer-binder concentrate by introducing and mixing polymer and asphalt binder, where the polymer-binder concentrate includes greater than 5 parts by weight polymer per 100 parts by weight asphalt, and introducing and mixing the phosphorus pentasulfide-binder concentrate with the polymer-binder concentrate to form a modified asphalt binder composition.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: October 19, 2010
    Inventors: William L. Hergenrother, Peter W. Boerner, Christine Rademacher, Daniel F. Graves, Timothy P. Reece, Herbert L. Wissel