Patents by Inventor Theodore Arthur Treat

Theodore Arthur Treat 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).

  • Polymerization of fluoromonomers
    Patent number: 6429258
    Abstract: Aqueous dispersion polymerization of fluoromonomers is improved by using a combination of fluorosurfactants, one of which is a perfluoropolyether carboxylic acid or salt.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: August 6, 2002
    Assignee: E. I. du Pont de Nemours & Company
    Inventors: Richard Alan Morgan, Clay Woodward Jones, Theodore Arthur Treat, Jeffrey A. Hrivnak
  • Modified polytetrafluoroethylene fine powder
    Patent number: 5731394
    Abstract: Polytetrafluoroethylene (PTFE) fine powder is provided which exhibits both low rheometer extrusion pressure and high adhesion to wire by incorporating into the free powder the combination of perfluoro(alkyl) ethylene such as perfluoro(n-butyl) ethylene with fluoro(alkyl vinyl ether), such as perfluoro(propyl vinyl ether), or fluoroolefin such as hexafluoropropylene as modifiers of the PTFE fine powder. The modified PTFE fine powder is made by aqueous dispersion copolymerization of TFE with the modifying monomers, with the addition of molecular weight reducing agent towards the end of the polymerization reaction.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: March 24, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Theodore Arthur Treat, Satish Chandra Malhotra