Patents by Inventor Mary E. McCann

Mary E. McCann 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).

  • Electrolyte permeable diaphragm
    Patent number: 4311566
    Abstract: Disclosed is an electrolyte permeable, non-asbestos diaphragm for chlor-alkali electrolytic cells. The diaphragm is a cohesive matrix of a non-asbestos structural component and a binder, and is prepared by codepositing the non-asbestos structural component and the binder, along with a pore forming component, from a slurry, rendering the binder thermoplastic, and removing the pore forming component. Also disclosed is a method of preparing the diaphragm, a method of utilizing the diaphragm, and an electrolytic cell containing the diaphragm.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: January 19, 1982
    Assignee: PPG Industries, Inc.
    Inventor: Mary E. McCann