Patents by Inventor Thomas Robert Earnest, Jr.

Thomas Robert Earnest, Jr. 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: 8674042
    Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer having less than about 50 ppm alkali metal ion, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms and which can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: March 18, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas Robert Earnest, Jr., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
  • Publication number: 20120058256
    Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer having less than about 50 ppm alkali metal ion, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms and which can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.
    Type: Application
    Filed: November 10, 2011
    Publication date: March 8, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas Robert Earnest, JR., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
  • Patent number: 8076431
    Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to hexafluoropropylene index (HFPI) of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer having less than about 50 ppm alkali metal ion, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms and which can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: December 13, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Thomas Robert Earnest, Jr., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
  • Publication number: 20080293904
    Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer having less than about 50 ppm alkali metal ion, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms and which can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.
    Type: Application
    Filed: July 25, 2008
    Publication date: November 27, 2008
    Applicant: E. I. du Pont de Nemours and Company
    Inventors: Thomas Robert Earnest, JR., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
  • Patent number: 7435786
    Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to hexafluoropropylene index (HFPI) of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: October 14, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Thomas Robert Earnest, Jr., Daniel N. Favereau, Niall D. McKee, Patricia A. Tooley
  • Patent number: 7126056
    Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to HFPI of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: October 24, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas Robert Earnest, Jr., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley
  • Patent number: 7122609
    Abstract: The present invention relates to a partially-crystalline copolymer comprising tetrafluoroethylene, hexafluoropropylene in an amount corresponding to a hexafluoropropylene index (HFPI) of from about 2.8 to 5.3, and preferably from about 0.2% to 3% by weight of perfluoro(alkyl vinyl ether), said copolymer being polymerized and isolated in the absence of added alkali metal salts, having a melt flow rate of within the range of about 30±3 g/10 min, and having no more than about 50 unstable endgroups/106 carbon atoms can be extruded at high speed onto conductor over a broad polymer melt temperature range to give insulated wire of high quality.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: October 17, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas Robert Earnest, Jr., Daniel A. Favereau, Niall D. McKee, Patricia A. Tooley