Patents by Inventor David P. Birkett

David P. Birkett 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).

  • Cyanoacrylate compositions
    Patent number: 6835789
    Abstract: This invention relates to cyanoacrylate-containing compositions that include, in addition to the cyanoacrylate component, certain accelerators to improve fixture speeds on certain substrates.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: December 28, 2004
    Assignee: Loctite (R&D) Limited
    Inventors: Brendan J. Kneafsey, Ruth A. Kelly, Fergal W. Tierney, David P. Birkett, Hanns R. Misiak, Kieran Mulcahy, Harry J. Woolfson
  • CYANOACRYLATE COMPOSITIONS
    Publication number: 20040260045
    Abstract: This invention relates to cyanoacrylate-containing compositions that include, in addition to the cyanoacrylate component, certain accelerators to improve fixture speeds on certain substrates.
    Type: Application
    Filed: June 18, 2003
    Publication date: December 23, 2004
    Applicant: LOCTITE (R&D) LTD.
    Inventors: Brendan J. Kneafsey, Ruth A. Kelly, Fergal W. Tierney, David P. Birkett, Hanns R. Misiak, Kieran Mulcahy, Harry J. Woolfson
  • Adhesives for dvd bonding
    Publication number: 20040010111
    Abstract: Curable (meth)acrylate adhesives are formulated with aliphatic urethane (meth)acrylate resins. The resins are urethane (meth)acrylate capped polyols wherein the urethane acrylate capping is derived from isophorone diisocyanate and a hydroxyalkyl (meth)acrylate and the polyol is an oligomeric aliphatic diol or triol having a number average molecular weight of from about 1500 to about 3500. The hydroxyalkyl (meth)acrylate may be hydroxy ethyl acrylate. The polyol may be a member selected from the group consisting of polyoxypropylene triols, polyTHF diols, polycaprolactone/polyTHF block copolymers, and polycaprolactone diols. The adhesives give good adhesion to common DVD substrate materials, and display excellent corrosion resistance in dissimilar metal bonding applications.
    Type: Application
    Filed: May 14, 2003
    Publication date: January 15, 2004
    Inventors: David P. Birkett, Alan E Litke, Steven T Nakos