Patents by Inventor Frederick C. Dupre

Frederick C. Dupre 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).

  • Cure accelerator system for phenolic resins
    Publication number: 20030071393
    Abstract: The cure rate of phenol-aldehyde resins is accelerated by conjoint use of a cyclic carbonate cure accelerant and an amine cure accelerant. The cure rate is accelerated still further by addition of a resorcinol source to resin comprising a cyclic carbonate and an amine cure accelerator. Also, cured resins made in accordance with the method.
    Type: Application
    Filed: October 16, 2001
    Publication date: April 17, 2003
    Inventor: Frederick C. Dupre
  • Cyclic urea-formaldehyde prepolymer for use in phenol-formaldehyde and melamine-formaldehyde resin-based binders
    Patent number: 6369171
    Abstract: The preparation of phenol-formaldehyde and melamine formaldehyde resin-based binders extended with a cyclic urea-formaldehyde prepolymer and to products prepared using the binders. More particularly, the invention relates to a cyclic urea prepolymer comprising urea, formaldehyde, and ammonia or a primary amine which, when added to a phenol-formaldehyde or melamine-formaldehyde based resin, results in a useful binder for the manufacturer numerous articles.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: April 9, 2002
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: Frederick C. Dupre, Millard E. Foucht, William P. Freese, Kurt D. Gabrielson, Benjamin D. Gapud, W. Hayes Ingram, Ted M McVay, Richard A. Rediger, Kelly A. Shoemake, Kim K. Tutin, James T. Wright