Patents by Inventor Mark A. Greschaw

Mark A. Greschaw 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).

  • Mixing apparatus for continuous production of monomer emulsion
    Patent number: 8985840
    Abstract: Mixing apparatus and methods for the continuous production of monomer emulsions that may be used in the production of polymer dispersions by radical aqueous emulsion polymerization. The mixing apparatus can include a pipe-in-pipe injector (100) and a suitable rotor-stator mixer (102). Liquids are delivered to the rotor-stator mixer via an inner (110) and an outer (108) pipe in such a way as to substantially prevent feed inconsistencies in a feed ratio of the liquids prior to entering a mixing zone of the rotor-stator mixer for emulsion formation.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: March 24, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Kenneth W. Hester, Daniel R. Stanley, Mark S. Riddle, Mark A. Greschaw, Dennis D. Hacker
  • MIXING APPARATUS FOR CONTINUOUS PRODUCTION OF MONOMER EMULSION
    Publication number: 20110160340
    Abstract: Mixing apparatus and methods for the continuous production of monomer emulsions that may be used in the production of polymer dispersions by radical aqueous emulsion polymerization. The mixing apparatus can include a pipe-in-pipe injector (100) and a suitable rotor-stator mixer (102). Liquids are delivered to the rotor-stator mixer via an inner (110) and an outer (108) pipe in such a way as to substantially prevent feed inconsistencies in a feed ratio of the liquids prior to entering a mixing zone of the rotor-stator mixer for emulsion formation.
    Type: Application
    Filed: June 24, 2009
    Publication date: June 30, 2011
    Inventors: Kenneth W. Hester, Daniel R. Stanley, Mark S. Riddle, Mark A. Greschaw, Dennis D. Hacker