Patents by Inventor David E. Hayden

David E. Hayden 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).

  • Fire retardant polyurethane foams
    Patent number: 4145488
    Abstract: Disclosed are polyurethane foam compositions comprising the reaction product of an organic polyisocyanate, a first polyol comprising an oxyalkylated Mannich reaction product of a phenol, an aldehyde, and an alkanol amine, a second polyol comprising an oxyalkylated pentaerythritol, and a third polyol comprising an oxyalkylated tetrabromophthalic anhydride.
    Type: Grant
    Filed: May 12, 1977
    Date of Patent: March 20, 1979
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: David E. Hayden
  • Polyurethane foam system
    Patent number: 4072623
    Abstract: We disclose a combination of three polyols. Polyurethane foams formed by reacting these polyols with an isocyanate exhibit good foam-substrate adhesion and good foam surface properties. This combination of polyols performs especially well in spray applications and is ideally suited for use in cold weather.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: February 7, 1978
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: David E. Hayden, Millard E. Foucht