Patents by Inventor Maria Villegas

Maria Villegas 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).

  • Patent number: 7199249
    Abstract: In accordance with the present invention, there are provided novel coupling agents which are compatible with a wide variety of adhesive formulations and which provide substantial adhesion enhancement relative to base formulations to which they are added. Invention compounds comprise at least one free-radically polymerizable group (other than acrylate) and at least one reactive moiety which forms covalent bond(s) with substrates having free hydroxyl groups on the surface thereof. Thus, invention compounds are covalently linked to adhesive formulations upon free radical cure, while at the same time providing “residual” functionality which is capable of undergoing reaction with any substrate having reactive (e.g., hydroxyl) groups in the surface thereof.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: April 3, 2007
    Assignee: Henkel Corporation
    Inventors: Puwei Liu, Stephen M. Dershem, Benjamin Neff, Maria Villegas
  • Publication number: 20040006166
    Abstract: In accordance with the present invention, there are provided novel coupling agents which are compatible with a wide variety of adhesive formulations and which provide substantial adhesion enhancement relative to base formulations to which they are added. Invention compounds comprise at least one free-radically polymerizable group (other than acrylate) and at least one reactive moiety which forms covalent bond(s) with substrates having free hydroxyl groups on the surface thereof. Thus, invention compounds are covalently linked to adhesive formulations upon free radical cure, while at the same time providing “residual” functionality which is capable of undergoing reaction with any substrate having reactive (e.g., hydroxyl) groups in the surface thereof.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 8, 2004
    Applicant: Henkel Loctite Corporation
    Inventors: Puwei Liu, Stephen M. Dershem, Benjamin Neff, Maria Villegas