Patents by Inventor James W. Bentley

James W. Bentley 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).

  • Electrochemical bleaching of wood pulps
    Patent number: 4617099
    Abstract: A process for electrochemically bleaching pulp which comprises dispersing a pulp in a solution of sodium chloride to provide a first pulp slurry; subjecting said pulp slurry to electrolysis at a pH in the range of about 0 to 2.0; filtering said pulp slurry to remove said pulp; dispersing said pulp in a second solution of sodium chloride to provide a second pulp slurry; subjecting said second pulp slurry to electrolysis at a pH greater than 8.0; and recovering said pulp.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: October 14, 1986
    Assignee: The Mead Corporation
    Inventors: Gerhart Schwab, Mei-Tsu Lee, James W. Bentley