Patents by Inventor Deborah E. Plaver

Deborah E. Plaver 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).

  • Gas permeation resistant synthetic cork closure
    Patent number: 6793972
    Abstract: A synthetic cork closure having at least a portion thereof coated with a gas impermeable polymer coating composition.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: September 21, 2004
    Assignee: The Dow Chemical Company
    Inventors: Daniel J. Falla, Michael L. Mounts, Deborah E. Plaver
  • Gas permeation resistant synthetic cork closure
    Publication number: 20040105954
    Abstract: A synthetic cork closure having at least a portion thereof coated with a gas impermeable polymer coating composition.
    Type: Application
    Filed: November 20, 2003
    Publication date: June 3, 2004
    Inventors: Daniel J. Falla, Michael L. Mounts, Deborah E. Plaver
  • Gas permeation resistant synthetic cork closure
    Publication number: 20030031881
    Abstract: A synthetic cork closure having at least a portion thereof coated with a gas impermeable polymer coating composition.
    Type: Application
    Filed: September 10, 2001
    Publication date: February 13, 2003
    Inventors: Daniel J. Falla, Michael L. Mounts, Deborah E. Plaver, Stuart I. Yaniger
  • Method of reducing degradation in polymers
    Publication number: 20020035184
    Abstract: A method for reducing degradation during processing of polymers. An effective amount of a foam cell nucleating agent to reduce degradation in a polymer is added to the polymer. The polymer and the foam cell nucleating agent are mixed to obtain a molten plastic and processed to obtain an unfoamed product, resulting in a reduction of degradation in the unfoamed product. The processing is preferably selected from extrusion and injection molding.
    Type: Application
    Filed: May 17, 2001
    Publication date: March 21, 2002
    Inventors: Deborah E. Plaver, Michael L. Mounts, Patrick M. Russell, Albert H. Case, Michael W. Potts
  • Blends of polysulfone with diaryl fluorene carbonate polymer
    Patent number: 5633331
    Abstract: Polymer blend compositions are prepared having excellent combinations of optical properties, physical properties and hydrolytic stability comprising, in admixture, (a) a diaryl fluorene carbonate polymer and (b) a polysulfone. Preferably, the diaryl carbonate polymer is a copolycarbonate of bisphenol A with bis(hydroxyphenyl) fluorene, preferably 9,9-bis(4-hydroxyphenyl) fluorene. Optionally, the blend compositions also comprise a second non-fluorene carbonate polymer (c). Preferably, the polysulfone is a bisphenol A polysulfone or a polyether poly sulfone. In preferred aspects of this invention, the polysulfone and diaryl carbonate polymer components are selected to provide a transparent blend composition.
    Type: Grant
    Filed: May 2, 1996
    Date of Patent: May 27, 1997
    Assignee: The Dow Chemical Company
    Inventors: Kevin L. Nichols, Paul J. Moses, Mark F. Sonnenschein, Deborah E. Plaver