Patents by Inventor Kevin Anthony Hay

Kevin Anthony Hay 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).

  • Fluoro derivative-substituted aryl pnictogens and their oxides
    Patent number: 7569527
    Abstract: Substituted aryl pnictogen derivative compositions having the structure of [Rf1-(CtR(u+v))]mE(O)n(CtR1(u+v+1))(3-m) wherein E is phosphorous, arsenic or antimony; Rf1 is a fluoropolyether chain; CtR(u+v) and CtR1(u+v+1) represent aryl groups, n is 0 or 1 and m is greater than about 0.5 to about 3. Such compositions have utility as additives for high temperature lubricants.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: August 4, 2009
    Assignee: E.I. duPont de Nemours and Company
    Inventors: John Lee Howell, Kevin Anthony Hay
  • Process for fluoro derivative-substituted aryl pnictogens and their oxides
    Patent number: 7420074
    Abstract: A process to prepare substituted aryl pnictogen derivatives comprising contacting a fluoropolyether or fluoroalkyl primary bromide or iodide, with a pnictogen derivative such as triaryl phosphine, triaryl arsine, or triaryl stibine or triaryl phosphine oxide, triaryl arsine oxide or triaryl stibine oxide, to produce the corresponding fluoropolyether- or fluoroalkyl- substituted aryl phosphine oxide, aryl arsine oxide or aryl stibine oxide; and optionally, contacting the oxide product with a reducing agent to form the corresponding substituted aryl phosphine, arsine or stibine.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: September 2, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Jon L. Howell, Kevin Anthony Hay
  • Process for fluoro derivative-substituted aryl pnictogens and their oxides
    Patent number: 7396948
    Abstract: A process to prepare substituted aryl pnictogen derivatives comprising contacting a fluoropolyether or fluoroalkyl primary bromide or iodide, with a pnictogen derivative such as triaryl phosphine, triaryl arsine, or triaryl stibine or triaryl phosphine oxide, triaryl arsine oxide or triaryl stibine oxide, to produce the corresponding fluoropolyether- or fluoroalkyl-substituted aryl phosphine oxide, aryl arsine oxide or aryl stibine oxide; and optionally, contacting the oxide product with a reducing agent to form the corresponding substituted aryl phosphine, arsine or stibine.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: July 8, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Jon L. Howell, Kevin Anthony Hay
  • Process for fluoro derivative-substituted aryl pnictogens and their oxides
    Patent number: 7285673
    Abstract: A process to prepare substituted aryl pnictogen derivatives comprising contacting a fluoropolyether or fluoroalkyl primary bromide or iodide, with a pnictogen derivative such as triaryl phosphine, triaryl arsine, or triaryl stibine or triaryl phosphine oxide, triaryl arsine oxide or triaryl stibine oxide, to produce the corresponding fluoropolyether- or fluoroalkyl-substituted aryl phosphine oxide, aryl arsine oxide or aryl stibine oxide; and optionally, contacting the oxide product with a reducing agent to form the corresponding substituted aryl phosphine, arsine or stibine.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: October 23, 2007
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Jon Lee Howell, Kevin Anthony Hay