Patents by Inventor Thomas E. Taggart

Thomas E. Taggart 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).

  • Use of polymers in the recycled fiber washing/deinking process
    Patent number: 5626718
    Abstract: The present invention is directed to a method for increasing the retention on a washing/thickening device in an aqueous papermaking system. The method generally comprises adding to the furnish solids of the system an effective amount of a cationic polyacrylamide polymer.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: May 6, 1997
    Assignee: Betz Laboratories, Inc.
    Inventors: Irenee J. Philippe, Frank J. Sutman, Thomas E. Taggart, Mary B. K. Letscher, Michael A. Schuster, John C. Harrington, IV
  • Papermaking using cationic starch and naturally anionic polysacchride gums
    Patent number: 5104487
    Abstract: The present invention is directed to a paper having improved properties, a process of producing the paper, and compositions used in the process of producing the paper. The invention generally comprises using a cationic starch in combination with a naturally anionic polysaccharide gum.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: April 14, 1992
    Assignee: Betz Paper Chem., Inc.
    Inventors: Thomas E. Taggart, Michael A. Schuster, Alan J. Schellhamer
  • Papermaking using cationic starch and carboxymethyl cellulose or its additionally substituted derivatives
    Patent number: 5061346
    Abstract: A process of making paper by forming a paper furnish comprised of cellulosic fibers or cellulosic fibers and mineral filler material suspended in water, depositing the furnish on a papermaking wire, and forming a sheet out of the solid components of the furnish while carried on the wire, the improvement wherein there is mixed into the furnish, prior to its being deposited on the wire, about 0.50 to 5 percent of cationic starch (based on the dry weight of total solids in the furnish) followed by about 5 to 20 percent of a water soluble carboxymethyl) cellulose (based on the weight of the cationic starch).
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: October 29, 1991
    Assignee: Betz PaperChem, Inc.
    Inventors: Thomas E. Taggart, Michael A. Schuster, Alan J. Schellhamer