Patents Represented by Attorney, Agent or Law Firm Gary M. Samuels
  • Process for increasing the dry strength of paper
    Patent number: 6723204
    Abstract: Addition of a premixed aqueous mixture of anionic dry strength resin and cationic or amphoteric starch to a paper making pulp slurry yields paper with higher dry strength than paper that is the same except that the starch and dry strength resin are added separately.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: April 20, 2004
    Assignee: Hercules Incorporated
    Inventors: Joseph Donald Van Handel, Constance K. Klaisner, John C. Gast