Patents by Inventor George Richard Chapman

George Richard Chapman 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).

  • Process aid for melt processable polymers
    Patent number: 7449520
    Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: November 11, 2008
    Assignee: DuPont Performance Elastomers
    Inventors: George Richard Chapman, Jr., Steven Richard Oriani
  • Process aid for melt processable polymers
    Patent number: 7446148
    Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: November 4, 2008
    Assignee: DuPont Performance Elastomers LLC
    Inventors: George Richard Chapman, Jr., Steven Richard Oriani
  • Process aid for melt processable polymers
    Patent number: 7390848
    Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: June 24, 2008
    Assignee: DuPont Performance Elastomas LLC
    Inventors: George Richard Chapman, Jr., Steven Richard Oriani
  • Process aid for melt processable polymers
    Patent number: 7001951
    Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: February 21, 2006
    Assignee: Dupont Dow Elastomers, LLC
    Inventors: George Richard Chapman, Jr., Steven Richard Oriani
  • Process aid for melt processable polymers
    Patent number: 6894118
    Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: May 17, 2005
    Assignee: DuPont Dow Elastomers LLC
    Inventors: George Richard Chapman, Jr., Steven Richard Oriani
  • Process aid for melt processable polymers
    Patent number: 6875814
    Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: April 5, 2005
    Assignee: DuPont Dow Elastomers L.L.C.
    Inventors: George Richard Chapman, Jr., Steven Richard Oriani
  • PROCESS AID FOR MELT PROCESSABLE POLYMERS
    Publication number: 20040204544
    Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.
    Type: Application
    Filed: June 23, 2003
    Publication date: October 14, 2004
    Inventors: George Richard Chapman, Steven Richard Oriani
  • Process aid for melt processable polymers
    Publication number: 20030236357
    Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.
    Type: Application
    Filed: June 23, 2003
    Publication date: December 25, 2003
    Inventors: George Richard Chapman, Steven Richard Oriani
  • Process aid for melt processable polymers
    Patent number: 6642310
    Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: November 4, 2003
    Assignee: DuPont Dow Elastomers L.L.C.
    Inventors: George Richard Chapman, Jr., Steven Richard Oriani
  • Process aid for melt processable polymers
    Publication number: 20030162901
    Abstract: Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.
    Type: Application
    Filed: February 11, 2003
    Publication date: August 28, 2003
    Inventors: George Richard Chapman, Steven Richard Oriani