Patents by Inventor Jerry T. Seitz

Jerry T. Seitz 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).

  • Oriented optically transparent crystalline syndiotatic vinylaromatic polymer
    Patent number: 4959435
    Abstract: Oriented, syndiotactic, optically transparent vinylaromatic polymers are prepared by a process comprising heating the polymer to a temperature above its crystalline melting point, cooling the polymer to a temperature less than an orientable temperature at a rate sufficient to avoid substantial crystal formation, and inducing strain into the polymer while at a orientable temperature to induce crystal formation and molecular orientation.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: September 25, 1990
    Assignees: The Dow Chemical Company, The Dow Chemical Company
    Inventors: Jerry T. Seitz, Charles A. Berglund, Andrew J. Pasztor, Jr.
  • Process for preparing an oriented crystalline syndiotactic vinylaromatic polymer
    Patent number: 4824629
    Abstract: Oriented, syndiotactic, optically transparent vinylaromatic polymers are prepared by a process comprising heating the polymer to a temperature above its crystalline melting point, cooling the polymer to a temperature less than an orientable temperature at a rate sufficient to avoid substantial crystal formation, and inducing strain into the polymer while at a orientable temperature to induce crystal formation and molecular orientation.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: April 25, 1989
    Assignee: The Dow Chemical Company
    Inventors: Jerry T. Seitz, Charles A. Berglund, Andrew J. Pasztor, Jr.