Patents by Inventor Elizabeth A. Benham

Elizabeth A. Benham 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: 20190169332
    Abstract: Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins.
    Type: Application
    Filed: February 4, 2019
    Publication date: June 6, 2019
    Inventors: Max P. McDaniel, Qing Yang, Randy S. Muninger, Elizabeth A. Benham, Kathy S. Clear
  • Publication number: 20190143287
    Abstract: Techniques are provided for catalyst preparation. A system for catalyst preparation may include an agitator disposed inside a polymerization catalyst tank and configured to mix a polymerization catalyst and a solvent to generate a polymerization catalyst solution. The system may also include a heating system coupled to the polymerization catalyst tank and configured to maintain a temperature of the polymerization catalyst solution above a threshold. The system may also include a precontactor configured to receive feed streams comprising an activator and the polymerization catalyst solution from the polymerization catalyst tank to generate a catalyst complex. The system may also include a transfer line configured to transfer the catalyst complex from an outlet of the precontactor to a reactor.
    Type: Application
    Filed: January 16, 2019
    Publication date: May 16, 2019
    Inventors: Elizabeth A. Benham, Albert P. Masino, Qing Yang, Randy S. Muninger, Rebecca A. Gonzales
  • Patent number: 10239975
    Abstract: Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: March 26, 2019
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Qing Yang, Randy S. Muninger, Elizabeth A. Benham, Kathy S. Clear
  • Publication number: 20180272309
    Abstract: A system and method for a first reactor to produce a transfer slurry having a first polyolefin polymerized in the first reactor, a heat-removal zone to remove heat from the transfer slurry, and a second reactor to receive the transfer slurry cooled by the heat-removal zone, the second reactor to produce a product slurry having a product polyolefin which includes the first polyolefin and a second polyolefin polymerized in the second reactor.
    Type: Application
    Filed: June 1, 2018
    Publication date: September 27, 2018
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Maruti Bhandarkar, Elizabeth A. Benham, Rebecca A. Gonzales, Joel A. Mutchler, Catherine M. Gill, Timothy O. Odi, Thanh T. Nguyen, Scott E. Kufeld
  • Patent number: 10040044
    Abstract: The present invention discloses a continuous calcination vessel which can be used to prepare calcined chemically-treated solid oxides from solid oxides and chemically-treated solid oxides. A process for the continuous preparation of calcined chemically-treated solid oxides is also provided. Calcined chemically-treated solid oxides disclosed herein can be used in catalyst compositions for the polymerization of olefins.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: August 7, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel
  • Publication number: 20170341045
    Abstract: The present invention discloses a continuous calcination vessel which can be used to prepare calcined chemically-treated solid oxides from solid oxides and chemically-treated solid oxides. A process for the continuous preparation of calcined chemically-treated solid oxides is also provided. Calcined chemically-treated solid oxides disclosed herein can be used in catalyst compositions for the polymerization of olefins.
    Type: Application
    Filed: August 15, 2017
    Publication date: November 30, 2017
    Inventors: Elizabeth A. Benham, Max P. McDaniel
  • Patent number: 9764297
    Abstract: The present invention discloses a continuous calcination vessel which can be used to prepare calcined chemically-treated solid oxides from solid oxides and chemically-treated solid oxides. A process for the continuous preparation of calcined chemically-treated solid oxides is also provided. Calcined chemically-treated solid oxides disclosed herein can be used in catalyst compositions for the polymerization of olefins.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 19, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel
  • Publication number: 20170233510
    Abstract: Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins.
    Type: Application
    Filed: April 24, 2017
    Publication date: August 17, 2017
    Inventors: Max P. McDaniel, Qing Yang, Randy S. Muninger, Elizabeth A. Benham, Kathy S. Clear
  • Patent number: 9670296
    Abstract: Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: June 6, 2017
    Assignee: Chevron Philips Chemical Company LP
    Inventors: Max P. McDaniel, Qing Yang, Randy S. Muninger, Elizabeth A. Benham, Kathy S. Clear
  • Patent number: 9556288
    Abstract: A system and method for polymerizing olefin in the presence of a chain transfer agent in a first reactor to form a first polyolefin, discharging from the first reactor a transfer slurry having the first polyolefin and the chain transfer agent, and processing the transfer slurry in a separator to remove chain transfer agent and to provide a fluff slurry having the first polyolefin and a lower content of chain transfer agent than in the transfer slurry. The system and method provide for feeding the fluff slurry to a second reactor, polymerizing olefin in the second reactor to form a second polyolefin, and discharging from the second reactor a slurry having the second polyolefin.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: January 31, 2017
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Maruti Bhandarkar, Elizabeth A Benham, Rebecca A. Gonzales, Scott E. Kufeld, Joel A Mutchler, Catherine M. Gill, Thanh T. Nguyen, Timothy O. Odi
  • Publication number: 20160325252
    Abstract: Techniques are provided for catalyst preparation. A system for catalyst preparation may include an agitator disposed inside a polymerization catalyst tank and configured to mix a polymerization catalyst and a solvent to generate a polymerization catalyst solution. The system may also include a heating system coupled to the polymerization catalyst tank and configured to maintain a temperature of the polymerization catalyst solution above a threshold. The system may also include a precontactor configured to receive feed streams comprising an activator and the polymerization catalyst solution from the polymerization catalyst tank to generate a catalyst complex. The system may also include a transfer line configured to transfer the catalyst complex from an outlet of the precontactor to a reactor.
    Type: Application
    Filed: July 22, 2016
    Publication date: November 10, 2016
    Inventors: Elizabeth A. Benham, Albert P. Masino, Qing Yang, Randy S. Muninger, Rebecca A. Gonzales
  • Publication number: 20160222141
    Abstract: Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins.
    Type: Application
    Filed: April 13, 2016
    Publication date: August 4, 2016
    Inventors: Max P. McDaniel, Qing Yang, Randy S. Muninger, Elizabeth A. Benham, Kathy S. Clear
  • Patent number: 9403921
    Abstract: A system and method for polymerizing olefin in the presence of a chain transfer agent in a first reactor to form a first polyolefin, discharging from the first reactor a transfer slurry having the first polyolefin and the chain transfer agent, and processing the transfer slurry in a separator to remove chain transfer agent and to provide a fluff slurry having the first polyolefin and a lower content of chain transfer agent than in the transfer slurry. The system and method provide for feeding the fluff slurry to a second reactor, polymerizing olefin in the second reactor to form a second polyolefin, and discharging from the second reactor a slurry having the second polyolefin.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: August 2, 2016
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Maruti Bhandarkar, Elizabeth A. Benham, Rebecca A. Gonzales, Scott E. Kufeld, Joel A. Mutchler, Catherine M. Gill, Thanh T. Nguyen, Timothy O. Odi
  • Publication number: 20160151755
    Abstract: The present invention discloses a continuous calcination vessel which can be used to prepare calcined chemically-treated solid oxides from solid oxides and chemically-treated solid oxides. A process for the continuous preparation of calcined chemically-treated solid oxides is also provided. Calcined chemically-treated solid oxides disclosed herein can be used in catalyst compositions for the polymerization of olefins.
    Type: Application
    Filed: February 9, 2016
    Publication date: June 2, 2016
    Inventors: Elizabeth A. Benham, Max P. McDaniel
  • Patent number: 9346896
    Abstract: Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: May 24, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Qing Yang, Randy S. Muninger, Elizabeth A. Benham, Kathy S. Clear
  • Patent number: 9340629
    Abstract: A technique for polymerizing ethylene on catalyst in a first polymerization reactor and in a second polymerization reactor to form polyethylene particles, and controlling particle size of the polyethylene particles.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: May 17, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Maruti Bhandarkar, Elizabeth A Benham, Rebecca A. Gonzales, Scott E. Kufeld, Joel A Mutchler, Catherine M. Gill, Thanh T. Nguyen, Timothy O. Odi
  • Patent number: 9289739
    Abstract: The present invention discloses a continuous calcination vessel which can be used to prepare calcined chemically-treated solid oxides from solid oxides and chemically-treated solid oxides. A process for the continuous preparation of calcined chemically-treated solid oxides is also provided. Calcined chemically-treated solid oxides disclosed herein can be used in catalyst compositions for the polymerization of olefins.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 22, 2016
    Assignee: Chevron Philips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel
  • Publication number: 20150353652
    Abstract: A system and method for polymerizing olefin in the presence of a chain transfer agent in a first reactor to form a first polyolefin, discharging from the first reactor a transfer slurry having the first polyolefin and the chain transfer agent, and processing the transfer slurry in a separator to remove chain transfer agent and to provide a fluff slurry having the first polyolefin and a lower content of chain transfer agent than in the transfer slurry. The system and method provide for feeding the fluff slurry to a second reactor, polymerizing olefin in the second reactor to form a second polyolefin, and discharging from the second reactor a slurry having the second polyolefin.
    Type: Application
    Filed: August 18, 2015
    Publication date: December 10, 2015
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Maruti BHANDARKAR, Elizabeth A. BENHAM, Rebecca A. GONZALES, Scott E. KUFELD, Joel A. MUTCHLER, Catherine M. GILL, Thanh T. NGUYEN, Timothy O. ODI
  • Publication number: 20150126693
    Abstract: A system and method for polymerizing olefin in the presence of a chain transfer agent in a first reactor to form a first polyolefin, discharging from the first reactor a transfer shiny having the first polyolefin and the chain transfer agent, and processing the transfer slurry in a separator to remove chain transfer agent and to provide a fluff slurry having the first polyolefin and a lower content of chain transfer agent than in the transfer slurry. The system and method provide for feeding the fluff slurry to a second reactor, polymerizing olefin in the second reactor to form a second polyolefin, and discharging from the second reactor a slurry having the second polyolefin.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 7, 2015
    Inventors: Maruti Bhandarkar, Elizabeth A. Benham, Rebecca A. Gonzales, Scott E. Kufeld, Joel A. Mutchler, Catherine M. Gill, Thanh T. Nguyen, Timothy O. Odi
  • Patent number: 8992840
    Abstract: Multiple components are selected, conveyed, and measured in a polymerization system. A control system adjusts the system variables to the desired values. Portions of the components can be fed to a pre-contactor before introduction into the polymerization reactor. The catalyst component concentrations and residence times are tightly controlled in the pre-contactor to affect product properties. The pre-contactor can be a single or multiple combinations of a CSTR or plug flow pre-contactors.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: March 31, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: David H. Burns, Donald W. Verser, Elizabeth A. Benham, Max P. McDaniel, John D. Hottovy, Clay K Thurman, David A. Lockman, John O. Lawmaster, Matthew T. Haberly, Thomas H. Smith, Jerry T. Lanier, Matthew G. Thorn, Penny A. Zellers