Patents by Inventor Lloyd W. Guatney

Lloyd W. Guatney 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).

  • Heterogeneous Ziegler-Natta catalysts with fluorided silica-coated alumina
    Patent number: 9758599
    Abstract: Catalyst systems containing a Ziegler-Natta catalyst component are disclosed. Such catalyst systems can contain a co-catalyst and a supported catalyst containing a fluorided silica-coated alumina, a magnesium compound, and vanadium and/or tetravalent titanium.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: September 12, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Qing Yang, Lloyd W. Guatney, Jeffrey F. Greco
  • Heterogeneous Ziegler-Natta Catalysts with Fluorided Silica-Coated Alumina
    Publication number: 20170088639
    Abstract: Catalyst systems containing a Ziegler-Natta catalyst component are disclosed. Such catalyst systems can contain a co-catalyst and a supported catalyst containing a fluorided silica-coated alumina, a magnesium compound, and vanadium and/or tetravalent titanium.
    Type: Application
    Filed: September 24, 2015
    Publication date: March 30, 2017
    Inventors: Errun Ding, Qing Yang, Lloyd W. Guatney, Jeffrey F. Greco
  • Ziegler-natta—metallocene dual catalyst systems with activator-supports
    Patent number: 9540457
    Abstract: Catalyst systems having both a metallocene catalyst component and a Ziegler-type catalyst component are disclosed. Such catalyst systems can contain a metallocene compound, a co-catalyst, and a supported catalyst containing a fluorided silica-coated alumina, a magnesium compound, and vanadium and/or tetravalent titanium.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: January 10, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Qing Yang, Lloyd W. Guatney, Jeffrey F. Greco
  • Low density polyolefin resins and films made therefrom
    Patent number: 9334350
    Abstract: Disclosed herein are broad molecular weight distribution olefin polymers having densities in the 0.895 to 0.930 g/cm3 range, and with improved impact and tear resistance. These polymers can have a ratio of Mw/Mn in the 8 to 35 range, a high load melt index in the 4 to 50 range, less than about 0.008 LCB per 1000 total carbon atoms, and a reverse comonomer distribution.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: May 10, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Ashish M. Sukhadia, Errun Ding, Chung Ching Tso, Albert P. Masino, Qing Yang, Lloyd W. Guatney, Guylaine St. Jean, Daniel G. Hert
  • Metallocene and half sandwich dual catalyst systems for producing broad molecular weight distribution polymers
    Patent number: 9273159
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can use a dual catalyst system containing a zirconium or hafnium based metallocene compound and a titanium based half-metallocene compound containing an indenyl group.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: March 1, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Qing Yang, Youlu Yu, Lloyd W. Guatney, Jim B. Askew
  • Low Density Polyolefin Resins and Films Made Therfrom
    Publication number: 20150175726
    Abstract: Disclosed herein are broad molecular weight distribution olefin polymers having densities in the 0.895 to 0.930 g/cm3 range, and with improved impact and tear resistance. These polymers can have a ratio of Mw/Mn in the 8 to 35 range, a high load melt index in the 4 to 50 range, less than about 0.008 LCB per 1000 total carbon atoms, and a reverse comonomer distribution.
    Type: Application
    Filed: March 5, 2015
    Publication date: June 25, 2015
    Inventors: Max P. McDaniel, Ashish M. Sukhadia, Errun Ding, Chung Ching Tso, Albert P. Masino, Qing Yang, Lloyd W. Guatney, Guylaine St. Jean, Daniel G. Hert
  • Low density polyolefin resins and films made therefrom
    Patent number: 9006367
    Abstract: Disclosed herein are broad molecular weight distribution olefin polymers having densities in the 0.895 to 0.930 g/cm3 range, and with improved impact and tear resistance. These polymers can have a ratio of Mw/Mn in the 8 to 35 range, a high load melt index in the 4 to 50 range, less than about 0.008 LCB per 1000 total carbon atoms, and a reverse comonomer distribution.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: April 14, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Ashish M. Sukhadia, Errun Ding, Chung Ching Tso, Albert P. Masino, Qing Yang, Lloyd W. Guatney, Guylaine St. Jean, Daniel G. Hert
  • Metallocene and Half Sandwich Dual Catalyst Systems for Producing Broad Molecular Weight Distribution Polymers
    Publication number: 20150011381
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can use a dual catalyst system containing a zirconium or hafnium based metallocene compound and a titanium based half-metallocene compound containing an indenyl group.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 8, 2015
    Inventors: Errun Ding, Qing Yang, Youlu Yu, Lloyd W. Guatney, Jim B. Askew
  • Metallocene and half sandwich dual catalyst systems for producing broad molecular weight distribution polymers
    Patent number: 8865846
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can use a dual catalyst system containing a zirconium or hafnium based metallocene compound and a titanium based half-metallocene compound containing an indenyl group.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: October 21, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Qing Yang, Youlu Yu, Lloyd W. Guatney, Jim B. Askew
  • Use of hydrogen and an organozinc compound for polymerization and polymer property control
    Patent number: 8829125
    Abstract: Methods of controlling polymerization reactions using a synergistic amount of hydrogen and an organozinc compound are disclosed. The resulting polymers have lower molecular weights and higher melt flow indices.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: September 9, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Qing Yang, Albert P. Masino, Youlu Yu, Lloyd W. Guatney, Jim B. Askew
  • Low Density Polyolefin Resins and Films Made Therefrom
    Publication number: 20140128563
    Abstract: Disclosed herein are broad molecular weight distribution olefin polymers having densities in the 0.895 to 0.930 g/cm3 range, and with improved impact and tear resistance. These polymers can have a ratio of Mw/Mn in the 8 to 35 range, a high load melt index in the 4 to 50 range, less than about 0.008 LCB per 1000 total carbon atoms, and a reverse comonomer distribution.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 8, 2014
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Ashish M. Sukhadia, Errun Ding, Chung Ching Tso, Albert P. Masino, Qing Yang, Lloyd W. Guatney, Guylaine St. Jean, Daniel G. Hert
  • Metallocene and Half Sandwich Dual Catalyst Systems for Producing Broad Molecular Weight Distribution Polymers
    Publication number: 20140088274
    Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can use a dual catalyst system containing a zirconium or hafnium based metallocene compound and a titanium based half-metallocene compound containing an indenyl group.
    Type: Application
    Filed: September 25, 2012
    Publication date: March 27, 2014
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Errun Ding, Qing Yang, Youlu Yu, Lloyd W. Guatney, Jim B. Askew
  • Use of Hydrogen and an Organozinc Compound for Polymerization and Polymer Property Control
    Publication number: 20130289226
    Abstract: Methods of controlling polymerization reactions using a synergistic amount of hydrogen and an organozinc compound are disclosed. The resulting polymers have lower molecular weights and higher melt flow indices.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Inventors: Errun Ding, Qing Yang, Albert P. Masino, Youlu Yu, Lloyd W. Guatney, Jim B. Askew
  • Use of hydrogen and an organozinc compound for polymerization and polymer property control
    Patent number: 8501882
    Abstract: Methods of controlling polymerization reactions using a synergistic amount of hydrogen and an organozinc compound are disclosed. The resulting polymers have lower molecular weights and higher melt flow indices.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: August 6, 2013
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Qing Yang, Albert P. Masino, Youlu Yu, Lloyd W. Guatney, Jim B. Askew
  • Use of Hydrogen and an Organozinc Compound for Polymerization and Polymer Property Control
    Publication number: 20130158216
    Abstract: Methods of controlling polymerization reactions using a synergistic amount of hydrogen and an organozinc compound are disclosed. The resulting polymers have lower molecular weights and higher melt flow indices.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 20, 2013
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Errun Ding, Qing Yang, Albert P. Masino, Youlu Yu, Lloyd W. Guatney, Jim B. Askew
  • Effect of aluminophosphate on catalyst systems comprising metal alkyl cocatalysts
    Patent number: 6900277
    Abstract: Novel catalyst systems which comprise one or more diimine nickel(II) or palladium (II) complexes, one or more cocatalysts, and aluminophosphate are disclosed. Olefin polymerization processes using those catalyst systems are also disclosed. The inclusion of aluminophosphate can improve the activity or productivity of such catalyst systems, making such catalyst systems active or more active in olefin polymerization under conditions in which they had previously been inactive or insufficiently active.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: May 31, 2005
    Assignee: Phillips Petroleum Company Washington County
    Inventors: Nancy W. Eilerts, Max P. McDaniel, Lloyd W. Guatney, Kathy S. Collins
  • Effect of aluminophosphate on catalyst systems comprising metal alkyl cocatalysts
    Publication number: 20040014918
    Abstract: Novel catalyst systems which comprise one or more diimine nickel (II) or palladium (II) complexes, one or more cocatalysts, and aluminophosphate are disclosed. Olefin polymerization processes using those catalyst systems are also disclosed. The inclusion of aluminophosphate can improve the activity or productivity of such catalyst systems, making such catalyst systems active or more active in olefin polymerization under conditions in which they had previously been inactive or insufficiently active.
    Type: Application
    Filed: May 23, 2003
    Publication date: January 22, 2004
    Inventors: Nancy W. Eilerts, Max P. McDaniel, Lloyd W. Guatney, Kathy S. Collins
  • Effect of aluminophosphate on catalyst systems comprising metal alkyl cocatalysts
    Patent number: 6583235
    Abstract: Novel catalyst systems which comprise one or more diimine nickel (II) or palladium (II) complexes, one or more cocatalysts, and aluminophosphate are disclosed. Olefin polymerization processes using those catalyst systems are also disclosed. The inclusion of aluminophosphate can improve the activity or productivity of such catalyst systems, making such catalyst systems active or more active in olefin polymerization under conditions in which they had previously been inactive or insufficiently active.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: June 24, 2003
    Assignee: Phillips Petroleum Company
    Inventors: Nancy W. Eilerts, Max P. McDaniel, Lloyd W. Guatney, Kathy S. Collins