Patents by Inventor Drew V. Speer

Drew V. Speer 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).

  • Compositions, articles & methods for scavenging oxygen
    Patent number: 5346644
    Abstract: A composition for scavenging oxygen is disclosed. The composition comprises an ethylenically unsaturated hydrocarbon and a transition metal catalyst and can be incorporated into various types of layers. It is preferable that the composition be incorporated into layers of multilayered articles used for packaging oxygen-sensitive products such as food products.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: September 13, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, William P. Roberts, Charles R. Morgan, Cynthia L. Ebner
  • Methods and compositions for oxygen scavenging
    Patent number: 5211875
    Abstract: A method of initiating oxygen scavenging by compositions which comprise oxidizable organic compounds and transition metal catalysts is disclosed. The method comprises initiating scavenging by exposing the composition, etc., to radiation. The radiation exposure is preferably electron beam or ultraviolet light and is preferably used on oxygen scavenging compositions which comprise a substituted or unsubstituted ethylenically unsaturated hydrocarbon and a transition metal catalyst. Inclusion of a photoinitiator or antioxidant in the scavenging composition is also preferred to facilitate and/or control the composition's scavenging properties. The method can be used for initiating scavenging in packaging layers or articles for oxygen sensitive products such as food and beverage.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: May 18, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, William P. Roberts, Charles R. Morgan