Patents by Inventor Wellington F. Berghoff

Wellington F. Berghoff 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).

  • Transesterification cure of thermosetting coatings
    Patent number: 4897450
    Abstract: A thermosetting paint coating composition is based on a thermosetting polymeric binder comprising a hydroxyl functional polyester polymer and a beta-hydroxy ester acrylic copolymer, where the polymer and copolymer are adapted to crosslink by transesterification in the presence of certain transesterification catalysts.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: January 30, 1990
    Assignee: The Glidden Company
    Inventors: Gary P. Craun, Susan M. Sobek, Wellington F. Berghoff
  • Acrylic polyester high solids coatings
    Patent number: 4751267
    Abstract: A high solids coating composition comprises a low molecular weight polymeric blend of acrylic polymer, polyester polymer, and amine cross-linking resin. The acrylic and polyester polymers contain primary hydroxyl groups adapted to coreact and cross-link with active amine cross-linking resin such as aminoplast resins. All of the polymers have a number average molecular weight below about 3000.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: June 14, 1988
    Assignee: The Glidden Company
    Inventor: Wellington F. Berghoff
  • Acrylic polyester high solids coatings
    Patent number: 4716200
    Abstract: A high solids coating composition comprises a low molecular weight polymeric blend of acrylic polymer, polyester polymer, and amine cross-linking resin. The acrylic and polyester polymers contain primary hydroxyl groups adapted to coreact and cross-link with active amine cross-linking resin such as aminoplast resins. All of the polymers have a number average molecular weight below about 3000.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: December 29, 1987
    Assignee: The Glidden Company
    Inventor: Wellington F. Berghoff