Patents by Inventor Robert Gelman

Robert Gelman 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).

  • Patent number: 8308902
    Abstract: A method of improving retention and drainage in a papermaking process is disclosed. The addition of an associative polymer, a poly(vinylamine) and optionally a siliceous material to the papermaking slurry to improve retention and drainage is disclosed. Additionally a method to improve retention and drainage comprising addition of an organic microparticle, a poly(vinylamine) and optionally a siliceous material to the papermaking slurry is disclosed. A composition comprising an associative polymer, and a poly(vinylamine) and optionally further comprising cellulose fiber is disclosed.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: November 13, 2012
    Assignee: Hercules Incorporated
    Inventors: Frank Sutman, John Harrington, Robert Gelman
  • Publication number: 20090211719
    Abstract: A method of improving retention and drainage in a papermaking process is disclosed. The addition of an associative polymer, a poly(vinylamine) and optionally a siliceous material to the papermaking slurry to improve retention and drainage is disclosed. Additionally a method to improve retention and drainage comprising addition of an organic microparticle, a poly(vinylamine) and optionally a siliceous material to the papermaking slurry is disclosed. A composition comprising an associative polymer, and a poly(vinylamine) and optionally further comprising cellulose fiber is disclosed.
    Type: Application
    Filed: May 8, 2009
    Publication date: August 27, 2009
    Inventors: Frank Sutman, John Harrington, Robert Gelman
  • Publication number: 20080029231
    Abstract: Methods for inhibiting the depositions of organic contaminants from pulp in pulp and papermaking systems are disclosed. Hydrophobically modified poly[ethylene glycol] are added to the pulp or applied to deposition-prone surfaces of a papermaking system.
    Type: Application
    Filed: July 25, 2007
    Publication date: February 7, 2008
    Inventors: Qu-Ming Gu, Huai Cheng, William Carey, Robert Gelman, Jennifer Rittenhouse Pruss, Erin Doherty
  • Publication number: 20070164513
    Abstract: The present invention is an improved puzzle game where the puzzle game is composed of a plurality of removable pieces, each removable piece having at least one solution location, the improvement being means for retaining the removable pieces in the same general area of other removable pieces or the puzzle frame. The present invention provides a method of linking puzzle pieces to a frame and to other puzzle pieces, for ease of use and for storage.
    Type: Application
    Filed: January 13, 2006
    Publication date: July 19, 2007
    Inventor: Robert Gelman
  • Publication number: 20060289136
    Abstract: A method of improving retention and drainage in a papermaking process is disclosed. The method provides for the addition of an associative polymer, a second component and optionally a siliceous material to the papermaking slurry. Additionally, a composition comprising an associative polymer, and a second component, and optionally further comprising cellulose fiber is disclosed.
    Type: Application
    Filed: December 21, 2005
    Publication date: December 28, 2006
    Inventors: Erin Doherty, Robert Gelman
  • Publication number: 20060289137
    Abstract: A method of improving retention and drainage in a papermaking process is disclosed. The method provides for the addition of an associative polymer, prepared by an inverse emulsion polymerization process that utilizes multiple, discrete additions of initiator. Additionally, a process for preparation of an associative polymer, prepared by an inverse emulsion polymerization process that utilizes multiple discrete additions of initiator is disclosed.
    Type: Application
    Filed: December 21, 2005
    Publication date: December 28, 2006
    Inventors: Robert Gelman, Erin Doherty
  • Publication number: 20060266488
    Abstract: A method of improving retention and drainage comprising adding a water compatible hydrophobic copolymer to a papermaking slurry is disclosed. A composition comprising a water compatible hydrophobic copolymer is described.
    Type: Application
    Filed: December 21, 2005
    Publication date: November 30, 2006
    Inventors: Erin Doherty, Robert Gelman
  • Publication number: 20060183816
    Abstract: The embodiments of the present invention relate to an additive system comprising a cationic latex and an anionic polymer; as well as a process utilizing the additive system for making paper where the process is effective in all grades of paper, particularly those grades used for printing and writing.
    Type: Application
    Filed: February 11, 2005
    Publication date: August 17, 2006
    Inventors: Robert Gelman, Brian Ranson
  • Publication number: 20060142430
    Abstract: A method of improving retention and drainage in a papermaking process is disclosed. The method provides for the addition of an associative polymer, a microparticle and optionally a siliceous material to a papermaking slurry. Additionally, a composition comprising an associative polymer and a microparticle and optionally further comprising cellulose fiber is disclosed.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 29, 2006
    Inventors: John Harrington, Frank Sutman, Robert Gelman
  • Publication number: 20060142432
    Abstract: A method of improving retention and drainage in a papermaking process is disclosed. The method provides for the addition of an associative polymer, a polyelectrolyte and optionally a siliceous material to the papermaking slurry. Additionally, a composition comprising an associative polymer, and a polyelectrolyte and optionally further comprising cellulose fiber is disclosed.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 29, 2006
    Inventors: John Harrington, Robert Gelman, Frank Sutman
  • Publication number: 20060142431
    Abstract: A method of improving retention and drainage in a papermaking process is disclosed. The addition of an associative polymer, a poly(vinylamine) and optionally a siliceous material to the papermaking slurry to improve retention and drainage is disclosed. Additionally a method to improve retention and drainage comprising addition of an organic microparticle, a poly(vinylamine) and optionally a siliceous material to the papermaking slurry is disclosed. A composition comprising an associative polymer, and a poly(vinylamine) and optionally further comprising cellulose fiber is disclosed.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 29, 2006
    Inventors: Frank Sutman, John Harrington, Robert Gelman
  • Publication number: 20060142429
    Abstract: A method of improving retention and drainage in a papermaking process is disclosed. The method provides for the addition of an associative polymer, a water compatible polymer and optionally a siliceous material to the papermaking slurry. Additionally, a composition comprising an associative polymer, and a water compatible polymer and optionally further comprising cellulose fiber is disclosed.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 29, 2006
    Inventors: Robert Gelman, John Harrington, Frank Sutman
  • 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
  • Publication number: 20050143506
    Abstract: A method to invert an inverse emulsion water compatible polymer product using a combination of surfactants that have specific chemical structures is disclosed. A combination, or blend, of two or more surfactants provides for an effective breaker system. The blend of surfactants is more effective than the individual surfactants.
    Type: Application
    Filed: December 14, 2004
    Publication date: June 30, 2005
    Inventors: John Harrington, Robert Gelman, K. Vaynberg