Patents by Inventor Kent L. Chasey

Kent L. Chasey 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).

  • Patent number: 8829127
    Abstract: The invention relates to a continuous polymerization process for preparing a random ethylene interpolymer which comprises: (A) polymerizing ethylene, and an ?-olefin comonomer selected from propylene and/or 1-butene, and mixtures thereof, under continuous random polymerization conditions in the presence of single site catalyst system employing an ionic activator having cyclic ligands shielding a central charge bearing atom, at a temperature of 140° C. to 250° C. at a conversion of ethylene of 80 to 99% and a comonomer conversion of from at least 20%; and (B) devolatilizing the polymer to provide an ethylene copolymer having a density of from 0.85 to 0.92 g/cm3, an MI of from 0.01 to 100 g/10 min and an I21/I2 of from 30 to 400.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: September 9, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Narayanaswami Raja Dharmarajan, Rui Zhao, Bruce Allan Harrington, George James Pehlert, Periagaram S. Ravishankar, Kent L. Chasey
  • Patent number: 8829349
    Abstract: Insulation compounds for medium-voltage power cables and methods for making same are provided. The compound can include a polymer comprising ethylene, one or more C3-C8 alpha olefins and, optionally, one or more dienes, and one or more metal oxides not based on lead or zinc.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: September 9, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Kent L. Chasey
  • Publication number: 20130035460
    Abstract: The invention relates to a continuous polymerization process for preparing a random ethylene interpolymer which comprises: (A) polymerizing ethylene, and an ?-olefin comonomer selected from propylene and/or 1-butene, and mixtures thereof, under continuous random polymerization conditions in the presence of single site catalyst system employing an ionic activator having cyclic ligands shielding a central charge bearing atom, at a temperature of 140° C. to 250° C. at a conversion of ethylene of 80 to 99% and a comonomer conversion of from at least 20%; and (B) devolatilizing the polymer to provide an ethylene copolymer having a density of from 0.85 to 0.92 g/cm3, an MI of from 0.01 to 100 g/10 min and an I21/I2 of from 30 to 400.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 7, 2013
    Inventors: Narayanaswami R. DHARMARAJAN, Rui Zhao, Bruce Allan Harrington, George James Pehlert, Periagaram S. Ravishankar, Kent L. Chasey
  • Patent number: 8263722
    Abstract: The invention relates to a continuous polymerization process for preparing a random ethylene interpolymer with propylene and/or 1-butene which comprises: (A) polymerizing ethylene, and as an ?-olefin comonomer propylene and/or 1-butene under continuous random polymerization conditions in the presence of single site catalyst system employing an ionic activator having cyclic ligands shielding a central charge bearing atom, at a temperature of 140° C. to 250° C. at a conversion of ethylene of 80 to 99% and a comonomer conversion of from at least 30% and (B) devolatilizing the polymer to provide an ethylene copolymer having a density of from 0.85 to 0.92 g/cm3, an MI of from 0.01 to 100 g/10 min, preferably from 0.1 to 20, and an I21/I2 of from 30 to 400. The invention also relates to polymers made by such processes containing as ?-olefin comonomer propylene and/or 1-butene, having a density of from 0.85 to 0.92 g/cm3, an MI of from 0.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: September 11, 2012
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: Narayanaswami Raja Dharmarajan, Rui Zhao, Bruce Allan Harrington, George James Pehlert, Periagaram S. Ravishankar, Kent L. Chasey
  • Patent number: 8227534
    Abstract: An insulation compound for a medium-voltage power cable, comprising a polymer comprising ethylene and one or more C3-C8 alpha olefins; and one or more metal sulfides.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: July 24, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Kent L. Chasey
  • Publication number: 20100276175
    Abstract: Insulation compounds for medium-voltage power cables and methods for making same are provided. The compound can include a polymer comprising ethylene, one or more C3-C8 alpha olefins and, optionally, one or more dienes, and one or more metal oxides not based on lead or zinc.
    Type: Application
    Filed: November 2, 2009
    Publication date: November 4, 2010
    Inventor: Kent L. Chasey
  • Publication number: 20100160524
    Abstract: An insulation compound for a medium-voltage power cable, comprising a polymer comprising ethylene and one or more C3-C8 alpha olefins; and one or more metal sulfides.
    Type: Application
    Filed: November 18, 2009
    Publication date: June 24, 2010
    Inventor: Kent L. Chasey
  • Patent number: 6686419
    Abstract: This invention relates generally to synthetic polymers, generally with improved balance of processability, resilience and durability. These polymers are generally of the ethylene, alpha-olefin, diene terpolymer type.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: February 3, 2004
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Guy Joseph Wouters, Periagaram S Ravishankar, Kent L. Chasey, Eric P. Jourdain
  • Publication number: 20030162926
    Abstract: This invention relates generally to synthetic polymers, generally with improved balance of processability, resilience and durability. These polymers are generally of the ethylene, alpha-olefin, diene terpolymer type.
    Type: Application
    Filed: February 7, 2003
    Publication date: August 28, 2003
    Inventors: Guy Joseph Wouters, P. S. Ravishankar, Kent L. Chasey, Eric P. Jourdain