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: 20110136996
    Abstract: A method comprising (a) contacting a support and a chromium-containing compound to form chromium-containing support, (b) heat treating the chromium-containing support in an oxidizing atmosphere to form a treated support, (c) contacting the treated support with carbon monoxide to form a CO-contacted support, and (d) contacting the CO-contacted support with hydrogen to form a catalyst. A method comprising oxidizing a chromium-treated support to form a polymerization catalyst, contacting the polymerization catalyst with carbon monoxide to form a reduced polymerization catalyst, contacting the reduced polymerization catalyst with hydrogen to form an activated polymerization catalyst, and contacting the activated polymerization catalyst with ethylene in a reaction zone under suitable reaction conditions to form a random copolymer.
    Type: Application
    Filed: February 17, 2011
    Publication date: June 9, 2011
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Elizabeth A. BENHAM, Max P. MCDANIEL, Kathy S. COLLINS, Stephen M. WHARRY
  • Patent number: 7951889
    Abstract: In an embodiment, a method is disclosed to increase the activity of an ionic liquid catalyst comprising emulsifying the ionic liquid catalyst with one or more liquid components. In an embodiment, a method is disclosed comprising introducing into a reaction zone a monomer feed and a reduced amount of ionic liquid catalyst and controlling an amount of shear present in the reaction zone to maintain a desired conversion reaction of the monomer. In an embodiment, a catalyzed reaction system is disclosed comprising a reactor configured to receive one or more liquid components and ionic liquid catalyst; a device coupled to the reactor for adding high shear to the liquid components and ionic liquid catalyst; and a controller coupled to the device for adding high shear and configured to control the amount of shear added to a catalyzed reaction zone to maintain a conversion reaction.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: May 31, 2011
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Lee H. Bergman, Kenneth D. Hope, Elizabeth A. Benham, Donald A. Stern
  • Publication number: 20110092357
    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: December 29, 2010
    Publication date: April 21, 2011
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Max P. McDaniel, Qing Yang, Randy S. Muninger, Elizabeth A. Benham, Kathy S. Collins
  • Patent number: 7910669
    Abstract: A method comprising (a) contacting a support and a chromium-containing compound to form chromium-containing support, (b) heat treating the chromium-containing support in an oxidizing atmosphere to form a treated support, (c) contacting the treated support with carbon monoxide to form a CO-contacted support, and (d) contacting the CO-contacted support with hydrogen to form a catalyst. A method comprising oxidizing a chromium-treated support to form a polymerization catalyst, contacting the polymerization catalyst with carbon monoxide to form a reduced polymerization catalyst, contacting the reduced polymerization catalyst with hydrogen to form an activated polymerization catalyst, and contacting the activated polymerization catalyst with ethylene in a reaction zone under suitable reaction conditions to form a random copolymer.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: March 22, 2011
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel, Kathy S. Collins, Stephen M. Wharry
  • Publication number: 20110065874
    Abstract: The present invention provides polymerization catalyst compositions employing half-metallocene compounds with a heteroatom-containing ligand bound to the transition metal. Methods for making these hybrid metallocene compounds and for using such compounds in catalyst compositions for the polymerization and copolymerization of olefins are also provided.
    Type: Application
    Filed: November 18, 2010
    Publication date: March 17, 2011
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Matthew G. Thorn, Elizabeth A. Benham
  • Patent number: 7906603
    Abstract: Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Using the cocatalyst in conjunction with the catalyst increases several properties, such as the high load melt index (HLMI), the MW, and the MN, of the polymers produced by this polymerization method. Polymer compositions produced by such methods have various unique properties, including a PDI greater than about 30. Additional embodiments include articles of manufacture or end use articles formed from such polymer compositions.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: March 15, 2011
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Elizabeth A. Benham, Steven J. Secora, Michael D. Jensen, Kathy S. Collins
  • Patent number: 7897539
    Abstract: A method of preparing a composition comprising dry mixing commercial grade alumina and a solid sulfating agent to form a mixture and calcining the mixture to form a sulfated alumina support.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: March 1, 2011
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Elizabeth A. Benham, Randall S. Muninger
  • Patent number: 7884163
    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: September 23, 2009
    Date of Patent: February 8, 2011
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Qing Yang, Randy S. Muninger, Elizabeth A. Benham, Kathy S. Collins
  • Patent number: 7884165
    Abstract: The present invention provides polymerization catalyst compositions employing half-metallocene compounds with a heteroatom-containing ligand bound to the transition metal. Methods for making these hybrid metallocene compounds and for using such compounds in catalyst compositions for the polymerization and copolymerization of olefins are also provided.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: February 8, 2011
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Matthew G. Thorn, Elizabeth A. Benham
  • Publication number: 20100322836
    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: June 23, 2009
    Publication date: December 23, 2010
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel
  • Patent number: 7842763
    Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. The new resins were characterized by useful properties in impact, tear, adhesion, sealing, extruder motor loads and pressures at comparable melt index values, and neck-in and draw-down.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: November 30, 2010
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Elizabeth A. Benham, Randy Muninger, Gary Jerdee, Ashish M. Sukhadia, Qing Yang, Matthew G. Thorn
  • Patent number: 7829646
    Abstract: The present invention is directed to PE-100 ethylene copolymers and pipe made thereof having a Tabor abrasion between about 0.01 and about 0.001 grams lost/1000 revolutions. These copolymers are formed by contacting ethylene with at least one mono-1-olefin comonomer having from 2 to about 10 carbon atoms per molecule in a reaction zone under polymerization conditions in the presence of a hydrocarbon diluent, a catalyst system, and a cocatalyst. Additionally, the comonomers may be selected from mono-1-olefins having 4 to 10 carbon atoms, such as, 1-hexene, 1-butene, 4-methyl-1-pentene, 1-octene, and 1-decene. Further, these ethylene copolymers may be employed to produce PE-100 pipe having both small diameters and diameters in excess of 42 inches substantially without sagging or other gravitational deformation. Copolymers of ethylene and 1-hexene are disclosed which are used to produce PE-100 pipe.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: November 9, 2010
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Paul J. DesLauriers, Max P. McDaniel, Al R. Wolfe, Pamela L. Maeger, William R. Coutant, David C. Rohlfing, Steven J. Secora, William B. Beaulieu, Elizabeth A. Benham, David F. Register
  • Publication number: 20100280199
    Abstract: This invention provides a compositions that are useful for polymerizing at least one monomer into at least one polymer.
    Type: Application
    Filed: June 14, 2010
    Publication date: November 4, 2010
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: MAX P. MCDANIEL, ELIZABETH A. BENHAM, SHIRLEY J. MARTIN, KATHY S. COLLINS, JAMES L. SMITH, GIL R. HAWLEY, CHRISTOPHER E. WITTNER, MICHAEL D. JENSEN
  • Publication number: 20100240844
    Abstract: A method comprising (a) contacting a support and a chromium-containing compound to form chromium-containing support, (b) heat treating the chromium-containing support in an oxidizing atmosphere to form a treated support, (c) contacting the treated support with carbon monoxide to form a CO-contacted support, and (d) contacting the CO-contacted support with hydrogen to form a catalyst. A method comprising oxidizing a chromium-treated support to form a polymerization catalyst, contacting the polymerization catalyst with carbon monoxide to form a reduced polymerization catalyst, contacting the reduced polymerization catalyst with hydrogen to form an activated polymerization catalyst, and contacting the activated polymerization catalyst with ethylene in a reaction zone under suitable reaction conditions to form a random copolymer.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 23, 2010
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel, Kathy S. Collins, Stephen M. Wharry
  • Patent number: 7790820
    Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, typically using a supported catalyst composition. In one aspect, this invention encompasses precontacting a metallocene with an olefin or alkyne monomer and an organoaluminum compound, prior to contacting this mixture with the acidic activator-support.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: September 7, 2010
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Michael D. Jensen, Gil R. Hawley, Max P. McDaniel, Tony Crain, Elizabeth A. Benham, Joel L. Martin, Qing Yang
  • Publication number: 20100222537
    Abstract: Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Using the cocatalyst in conjunction with the catalyst increases several properties, such as the high load melt index (HLMI), the MW, and the MN, of the polymers produced by this polymerization method. Polymer compositions produced by such methods have various unique properties, including a PDI greater than about 30. Additional embodiments include articles of manufacture or end use articles formed from such polymer compositions.
    Type: Application
    Filed: May 13, 2010
    Publication date: September 2, 2010
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Max P. McDaniel, Elizabeth A. Benham, Steven J. Secora, Michael D. Jensen, Kathy S. Collins
  • Patent number: 7763561
    Abstract: This invention provides a compositions that are useful for polymerizing at least one monomer into at least one polymer.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: July 27, 2010
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Elizabeth A. Benham, Shirley J. Martin, Kathy S. Collins, James L. Smith, Gil R. Hawley, Christopher E. Wittner, Michael D. Jensen
  • Patent number: 7745557
    Abstract: Methods of polymerizing at least one olefin include contacting the olefin with a catalyst comprising chromium and with a cocatalyst comprising a non-transition metal cyclopentadienyl (Cp) compound. The polymerization may be performed in the presence of hydrogen. Using the cocatalyst in conjunction with the catalyst increases several properties, such as the high load melt index (HLMI), the MW, and the MN, of the polymers produced by this polymerization method. Polymer compositions produced by such methods have various unique properties, including a PDI greater than about 30. Additional embodiments include articles of manufacture or end use articles formed from such polymer compositions.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: June 29, 2010
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Max P. McDaniel, Elizabeth A. Benham, Steven J. Secora, Michael D. Jensen, Kathy S. Collins
  • Publication number: 20100144910
    Abstract: Catalyst systems for producing olefin polymers, methods of making such catalyst systems, and processes for producing olefin polymers using such catalyst systems are provided. The catalyst system comprises a first component and a second component, where the first component comprises chromium on a support, where the support comprises phosphated alumina, and the second component comprises: (1) a metal halide compound, a transition metal compound, and a precipitating agent, or (2) a substituted or unsubstituted dicyclopentadienyl chromium compound deposited onto a calcined oxide carrier, where the carrier includes silica, alumina, aluminophosphate, or any mixed oxide thereof.
    Type: Application
    Filed: February 11, 2010
    Publication date: June 10, 2010
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Elizabeth A. Benham, Al R. Wolfe
  • Publication number: 20100076167
    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: September 23, 2009
    Publication date: March 25, 2010
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: MAX P. MCDANIEL, Qing Yang, Randy S. Muninger, Elizabeth A. Benham, Kathy S. Collins