Patents by Inventor Arnold Lewis Montgomery Service

Arnold Lewis Montgomery Service 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).

  • Abrasion resistant fluoropolymer compositions containing micropulp
    Patent number: 7531113
    Abstract: The present invention provides an abrasion resistant composition comprising fluoropolymer and an effective amount of micropulp to increase the abrasion resistance of an article such as a film formed from the composition by at least 25% as compared to film formed from the fluoropolymer by itself. In an especially preferred embodiment, the composition also contains an effective amount of pigment to further increase the abrasion resistance of film formed from the composition as compared to film formed from the fluoropolymer by itself. The invention is especially useful for films formed on a fuser roll.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: May 12, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Arnold Frances, Laurence Waino McKeen, Osamu Hayakawa, Arnold Lewis Montgomery Service
  • Electrically conductive polymer films and process for making same
    Patent number: 7192536
    Abstract: A self-supporting conductive polymer film having distributed therein an electrically conductive polymer composition containing linearly conjugated ?-electron systems and residues of sulfonated lignin or a sulfonated polyflavonoid. The conductive polymer film preferably has a surface resistivity of from about 102 ohms per square to about 1010 ohms per square and is preferably formed from a liquid dispersion of thermoplastic polymer having the electrically conductive polymer composition distributed therein. In a preferred embodiment, heat sealable conductive fluoropolymer films are prepared.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: March 20, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Arnold Lewis Montgomery Service
  • Electrically conductive polymer films
    Patent number: 6932921
    Abstract: A self-supporting conductive polymer film having distributed therein an electrically conductive polymer composition containing linearly conjugated ?-electron systems and residues of sulfonated lignin or a sulfonated polyflavonoid. The conductive polymer film preferably has a surface resistivity of from about 102 ohms per square to about 1010 ohms per square and is preferably formed from a liquid dispersion of thermoplastic polymer having the electrically conductive polymer composition distributed therein. In a preferred embodiment, heat sealable conductive fluoropolymer films are prepared.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: August 23, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Arnold Lewis Montgomery Service
  • Electrically conductive polymer films
    Publication number: 20040140457
    Abstract: A self-supporting conductive polymer film having distributed therein an electrically conductive polymer composition containing linearly conjugated &pgr;-electron systems and residues of sulfonated lignin or a sulfonated polyflavonoid. The conductive polymer film preferably has a surface resistivity of from about 102 ohms per square to about 1010 ohms per square and is preferably formed from a liquid dispersion of thermoplastic polymer having the electrically conductive polymer composition distributed therein. In a preferred embodiment, heat sealable conductive fluoropolymer films are prepared.
    Type: Application
    Filed: December 3, 2003
    Publication date: July 22, 2004
    Inventor: Arnold Lewis Montgomery Service
  • Lustrous laminate film structures
    Patent number: 6060135
    Abstract: A lustrous, high elongation fluoropolymer laminate film structure comprising a top layer of weatherable fluoropolymer film containing a nacreous pigment and an underlying polymer layer containing solid color pigment. The laminate construction maintains its uniform appearance when stretched allowing the film to be used in molding or thermoforming applications or similar processing applications.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: May 9, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Arnold Lewis Montgomery Service