Patents by Inventor Martha Hollomon

Martha Hollomon 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).

  • Cationic or amphoteric copolymers prepared in an inverse emulsion matrix and their use in preparing cellulosic fiber compositions
    Patent number: 7396874
    Abstract: A papermaking method and a composition which utilize, as a drainage aid, a water-soluble cationic or amphoteric copolymer prepared via a water-in-oil polymerization technique that, absent a cross-linking agent, is characterized by a Huggins' constant (k?) determined in 0.01M NaCl greater than 0.3 and a storage modulus (G?) at 6.3 Hz greater than 50 Pa.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: July 8, 2008
    Assignee: Hercules Incorporated
    Inventors: Martha Hollomon, Brian L. Walchuk, Frank J. Sutman
  • Retention and drainage aids
    Publication number: 20060185806
    Abstract: The present invention describes polymeric retention and drainage aids for cellulosic fiber compositions and methods of use of the same.
    Type: Application
    Filed: December 13, 2005
    Publication date: August 24, 2006
    Inventors: John Harrington, Martha Hollomon
  • Process for preparing high molar mass polymers
    Publication number: 20060127351
    Abstract: The present invention describes processes for preparing water-compatible anionic polymers of high molar mass via water-in-oil polymerization.
    Type: Application
    Filed: December 14, 2004
    Publication date: June 15, 2006
    Applicant: Hercules Incorporated
    Inventors: Erin Doherty, Martha Hollomon, Robert Gelman
  • Cationic or amphoteric copolymers prepared in an inverse emulsion matrix and their use in preparing cellulosic fiber compositions
    Publication number: 20040143039
    Abstract: A papermaking method and a composition which utilize, as a drainage aid, a water-soluble cationic or amphoteric copolymer prepared via a water-in-oil polymerization technique that, absent a cross-linking agent, is characterized by a Huggins' constant (k′) determined in 0.01 M NaCl greater than 0.3 and a storage modulus (G′) at 6.3 Hz greater than 50 Pa.
    Type: Application
    Filed: December 4, 2003
    Publication date: July 22, 2004
    Inventors: Martha Hollomon, Brian L. Walchuk, Frank J. Sutman