Patents Assigned to Longview Corporation
  • Publication number: 20250256447
    Abstract: Disclosed are cast films and extrusion-coated substrates, and their methods of making. The cast films and coatings on the substrates are made from a composition containing an ungrafted ethylene-based polymer, a nanocomposite containing a polyamide and montmorillonite, and a compatibilizer comprising a maleic anhydride grafted ethylene-based polymer. These films and coatings can have improved optical and/or mechanical properties compared to films and coatings made without the nanocomposite.
    Type: Application
    Filed: February 11, 2025
    Publication date: August 14, 2025
    Applicant: Westlake Longview Corporation
    Inventors: Kranthi Chaitanya DANDA, Darren Lavon SMITH
  • Patent number: 12239925
    Abstract: A polymer melt candle filter having a support which comprises a hollow cylindrical body defined by a first end, a second end, and a cylinder wall having a first end portion and a second end portion. The first end portion includes a screw thread on its outside surface and optionally a hex fitting on its inside surface for receiving a hex wrench. The second end portion includes a plurality of holes in the cylinder wall. The area of the openings of the holes on the outside surface of the cylinder wall may be larger than the area of the openings of the corresponding holes on the inside surface of the cylinder wall. The shape of the openings of the holes on the outside surface may be non-circular.
    Type: Grant
    Filed: May 16, 2023
    Date of Patent: March 4, 2025
    Assignee: Westlake Longview Corporation
    Inventors: Kenneth Wayne Moser, Andrew Colin Lewis, Bert Eugene Allen, Stephen Wayne Coe, Douglas James Landry, Wayne Scott Strasser
  • Publication number: 20230374287
    Abstract: Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index.
    Type: Application
    Filed: July 31, 2023
    Publication date: November 23, 2023
    Applicant: Westlake Longview Corporation
    Inventors: John H. BRINDLE, JR., Richard K. STUART, JR., James H. SCOTT, David B. CONNER, Kevin J. TAYLOR, Scott T. TROCHIM
  • Patent number: 11760869
    Abstract: Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: September 19, 2023
    Assignee: Westlake Longview Corporation
    Inventors: John H. Brindle, Jr., Richard K. Stuart, Jr., James H. Scott, David B. Conner, Kevin J. Taylor, Scott T. Trochim
  • Publication number: 20230285878
    Abstract: A polymer melt candle filter having a support which comprises a hollow cylindrical body defined by a first end, a second end, and a cylinder wall having a first end portion and a second end portion. The first end portion includes a screw thread on its outside surface and optionally a hex fitting on its inside surface for receiving a hex wrench. The second end portion includes a plurality of holes in the cylinder wall. The area of the openings of the holes on the outside surface of the cylinder wall may be larger than the area of the openings of the corresponding holes on the inside surface of the cylinder wall. The shape of the openings of the holes on the outside surface may be non-circular.
    Type: Application
    Filed: May 16, 2023
    Publication date: September 14, 2023
    Applicant: Westlake Longview Corporation
    Inventors: Kenneth Wayne MOSER, Andrew Colin LEWIS, Bert Eugene ALLEN, Stephen Wayne COE, Douglas James LANDRY, Wayne Scott STRASSER
  • Patent number: 11691094
    Abstract: A polymer melt candle filter having a support which comprises a hollow cylindrical body defined by a first end, a second end, and a cylinder wall having a first end portion and a second end portion. The first end portion includes a screw thread on its outside surface and optionally a hex fitting on its inside surface for receiving a hex wrench. The second end portion includes a plurality of holes in the cylinder wall. The area of the openings of the holes on the outside surface of the cylinder wall may be larger than the area of the openings of the corresponding holes on the inside surface of the cylinder wall. The shape of the openings of the holes on the outside surface may be non-circular.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: July 4, 2023
    Assignee: Westlake Longview Corporation
    Inventors: Kenneth Wayne Moser, Andrew Colin Lewis, Bert Eugene Allen, Stephen Wayne Coe, Douglas James Landry, Wayne Scott Strasser
  • Publication number: 20210079208
    Abstract: Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Applicant: Westlake Longview Corporation
    Inventors: John H. BRINDLE, JR., Richard K. STUART, JR., James H. SCOTT, David B. CONNER, Kevin J. TAYLOR, Scott T. TROCHIM
  • Publication number: 20210008471
    Abstract: A polymer melt candle filter having a support which comprises a hollow cylindrical body defined by a first end, a second end, and a cylinder wall having a first end portion and a second end portion. The first end portion includes a screw thread on its outside surface and optionally a hex fitting on its inside surface for receiving a hex wrench. The second end portion includes a plurality of holes in the cylinder wall. The area of the openings of the holes on the outside surface of the cylinder wall may be larger than the area of the openings of the corresponding holes on the inside surface of the cylinder wall. The shape of the openings of the holes on the outside surface may be non-circular.
    Type: Application
    Filed: September 18, 2020
    Publication date: January 14, 2021
    Applicant: Westlake Longview Corporation
    Inventors: Kenneth Wayne MOSER, Andrew Colin LEWIS, Bert Eugene ALLEN, Stephen Wayne COE, Douglas James LANDRY, Wayne Scott STRASSER
  • Patent number: 10882991
    Abstract: Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: January 5, 2021
    Assignee: Westlake Longview Corporation
    Inventors: John H. Brindle, Jr., Richard K. Stuart, Jr., James H. Scott, David B. Conner, Kevin J. Taylor, Scott T. Trochim
  • Patent number: 10814254
    Abstract: A polymer melt candle filter having a support which comprises a hollow cylindrical body defined by a first end, a second end, and a cylinder wall having a first end portion and a second end portion. The first end portion includes a screw thread on its outside surface and optionally a hex fitting on its inside surface for receiving a hex wrench. The second end portion includes a plurality of holes in the cylinder wall. The area of the openings of the holes on the outside surface of the cylinder wall may be larger than the area of the openings of the corresponding holes on the inside surface of the cylinder wall. The shape of the openings of the holes on the outside surface may be non-circular.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: October 27, 2020
    Assignee: Westlake Longview Corporation
    Inventors: Kenneth Wayne Moser, Andrew Colin Lewis, Bert Eugene Allen, Stephen Wayne Coe, Douglas James Landry, Wayne Scott Strasser
  • Patent number: 10738188
    Abstract: Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: August 11, 2020
    Assignee: Westlake Longview Corporation
    Inventors: John H. Brindle, Jr., Richard K. Stuart, Jr., James H. Scott, David B. Conner, Kevin J. Taylor, Scott T. Trochim
  • Publication number: 20190218388
    Abstract: Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index.
    Type: Application
    Filed: March 27, 2019
    Publication date: July 18, 2019
    Applicant: Westlake Longview Corporation
    Inventors: John H. BRINDLE, JR., Richard K. STUART, JR., James H. SCOTT, David B. CONNER, Kevin J. TAYLOR, Scott T. TROCHIM
  • Publication number: 20190111362
    Abstract: A polymer melt candle filter having a support which comprises a hollow cylindrical body defined by a first end, a second end, and a cylinder wall having a first end portion and a second end portion. The first end portion includes a screw thread on its outside surface and optionally a hex fitting on its inside surface for receiving a hex wrench. The second end portion includes a plurality of holes in the cylinder wall. The area of the openings of the holes on the outside surface of the cylinder wall may be larger than the area of the openings of the corresponding holes on the inside surface of the cylinder wall. The shape of the openings of the holes on the outside surface may be non-circular.
    Type: Application
    Filed: December 12, 2018
    Publication date: April 18, 2019
    Applicant: Westlake Longview Corporation
    Inventors: Kenneth Wayne MOSER, Andrew Colin LEWIS, Bert Eugene ALLEN, Stephen Wayne COE, Douglas James LANDRY, Wayne Scott STRASSER
  • Patent number: 10188968
    Abstract: A polymer melt candle filter having a support which comprises a hollow cylindrical body defined by a first end, a second end, and a cylinder wall having a first end portion and a second end portion. The first end portion includes a screw thread on its outside surface and optionally a hex fitting on its inside surface for receiving a hex wrench. The second end portion includes a plurality of holes in the cylinder wall. The area of the openings of the holes on the outside surface of the cylinder wall may be larger than the area of the openings of the corresponding holes on the inside surface of the cylinder wall. The shape of the openings of the holes on the outside surface may be non-circular.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: January 29, 2019
    Assignee: Westlake Longview Corporation
    Inventors: Kenneth Wayne Moser, Andrew Colin Lewis, Bert Eugene Allen, Stephen Wayne Coe, Douglas James Landry, Wayne Scott Strasser
  • Publication number: 20180319971
    Abstract: Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index.
    Type: Application
    Filed: July 16, 2018
    Publication date: November 8, 2018
    Applicant: Westlake Longview Corporation
    Inventors: John H. BRINDLE, JR., Richard K. STUART, JR., James H. SCOTT, David B. CONNER, Kevin J. TAYLOR, Scott T. TROCHIM
  • Patent number: 10053574
    Abstract: Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: August 21, 2018
    Assignee: Westlake Longview Corporation
    Inventors: John H. Brindle, Jr., Richard K. Stuart, Jr., James H. Scott, David B. Conner, Kevin J. Taylor, Scott T. Trochim
  • Publication number: 20180117504
    Abstract: A polymer melt candle filter having a support which comprises a hollow cylindrical body defined by a first end, a second end, and a cylinder wall having a first end portion and a second end portion. The first end portion includes a screw thread on its outside surface and optionally a hex fitting on its inside surface for receiving a hex wrench. The second end portion includes a plurality of holes in the cylinder wall. The area of the openings of the holes on the outside surface of the cylinder wall may be larger than the area of the openings of the corresponding holes on the inside surface of the cylinder wall. The shape of the openings of the holes on the outside surface may be non-circular.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 3, 2018
    Applicant: Westlake Longview Corporation
    Inventors: Kenneth Wayne MOSER, Andrew Colin LEWIS, Bert Eugene ALLEN, Stephen Wayne COE, Douglas James LANDRY, Wayne Scott STRASSER
  • Patent number: 8653207
    Abstract: The invention relates to a process and apparatus for preparing an ethylene polymer by free radical polymerization under ultra-high pressure. The polymerization is carried out in an autoclave reactor in the presence of a free radical initiator. The autoclave reactor is characterized by having one or more elongated baffles affixed to the interior reactor wall.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: February 18, 2014
    Assignee: Westlake Longview Corporation
    Inventors: Bailey James Salmon, Alan G. Wonders, Wayne S. Strasser
  • Publication number: 20130317270
    Abstract: A simplified process for preparing polyolefins from saturated hydrocarbons is provided. The process involves partial and selective dehydrogenation of a saturated hydrocarbon in the presence of oxygen to form an olefin, unreacted hydrocarbon, and water, and optionally other by-products and oxygen. The water, other by-products (if present), and oxygen (if present) are separated from the olefin and unreacted hydrocarbon. No other separation is performed. The olefin and unreacted hydrocarbon are polymerized in the presence a polymerization catalyst or initiator to make polyolefin. Solid polyolefin is separated from unreacted hydrocarbon, which is recycled to the dehydrogenation reaction.
    Type: Application
    Filed: July 31, 2013
    Publication date: November 28, 2013
    Applicant: Westlake Longview Corporation
    Inventors: Jeffrey James VANDERBILT, Thomas James DEVON, Kenneth Alan DOOLEY
  • Patent number: 8198384
    Abstract: A method for preventing or reducing clogging of a fines ejector in a gas-phase olefin polymerization process is disclosed. The process involves injecting a liquid into the motive gas stream entering the fines ejector.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: June 12, 2012
    Assignee: Westlake Longview Corporation
    Inventors: Glenn Edward Moore, Jeremy Bruce Mann