Patents by Inventor Anita N. DiAndreth

Anita N. DiAndreth 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).

  • Hydrohalocarbon resistant refrigerator liners
    Patent number: 5418055
    Abstract: The present invention is directed to a refrigeration cabinet comprising an interior liner, a foam insulation derived from an HHC blowing agent and an outer wall. The interior liner comprises a styrene-based inner layer, an adhesive layer, and a barrier layer. The adhesive layer comprises an ethylene copolymer grafted with an anhydride or carboxylic acid moiety, and a styrene-based polymer or copolymer. The barrier layer comprises an ethylene vinyl alcohol copolymer.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: May 23, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John C. Chen, Anita N. Diandreth
  • Fabricated articles with improved resistance to hydrohalocarbons
    Patent number: 5219665
    Abstract: A multiple layer article of a thermoformable structural polymeric layer which is susceptible to damage upon exposure to hydrohalocarbon blowing agents and a polymeric layer which is a barrier to such hydrohalocarbon blowing agents provides a useful refrigerator liner. Related structures are useful for preventing the migration of hydrohalocarbons.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: June 15, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John C. Chen, Anita N. DiAndreth