Patents by Inventor Dean R. Hellwig

Dean R. Hellwig 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: 6858678
    Abstract: A continuous bulk polymerization and esterification process includes continuously charging into a reaction zone at least one ethylenically unsaturated acid-functional monomer and at least one linear or branched chain alkanol having greater than 11 carbon atoms. The process includes maintaining a flow rate through the reaction zone sufficient to provide an average residence time of less than 60 minutes and maintaining a temperature in the reaction zone sufficient to produce a polymeric product incorporating at least some of the alkanol as an ester of the polymerized ethylenically unsaturated acid-functional monomer. The polymeric product is used in various processes to produce water-based compositions including emulsions and dispersions such as oil emulsions, wax dispersions, pigment dispersions, surfactants and coatings which contain the polymeric product.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: February 22, 2005
    Assignee: Johnson Polymer, LLC
    Inventors: Kevin M. Andrist, John E. Blasko, Glenn C. Calhoun, Frederick C. Hansen, Dean R. Hellwig, Kurt A. Hessenius, Steven M. Hurley, D. Sunil Jayasuriya, Matthew G. Lee, Stephen J. Maccani, H. Thomas Mills, Jr., Gregory R. Peterson, Paul E. Sandvick, Dennis M. Wilson, John P. Wiruth
  • Patent number: 6689853
    Abstract: The present invention provides a high temperature continuous polymerization and condensation process for preparing a polymeric product. The process includes continuously charging into a reaction zone: at least one radically-polymerizable monomer having a radically polymerizable group and at least one condensation reactive functionality; and at least one modifying agent having a functional group capable of reacting with the condensation reactive functionality. The reaction zone includes at least one primary reactor, but may, and preferably does, contain a secondary reactor. The process further includes maintaining an effective temperature in the primary reactor to cause polymerization of the monomer and to allow at least a portion of the condensation reactive functionality to react with the functional group of the modifying agent.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: February 10, 2004
    Assignee: Johnson Polymer, LLC
    Inventors: John D. Campbell, Jon A. Debling, Douglas J. DeYoung, Ioannis Giannakitsas, Dean R. Hellwig, David D. Schatz, Fouad Teymour, Marco A. Villalobos
  • Publication number: 20020091207
    Abstract: The present invention provides a high temperature continuous polymerization and condensation process for preparing a polymeric product. The process includes continuously charging into a reaction zone: at least one radically-polymerizable monomer having a radically polymerizable group and at least one condensation reactive functionality; and at least one modifying agent having a functional group capable of reacting with the condensation reactive functionality. The reaction zone includes at least one primary reactor, but may, and preferably does, contain a secondary reactor. The process further includes maintaining an effective temperature in the primary reactor to cause polymerization of the monomer and to allow at least a portion of the condensation reactive functionality to react with the functional group of the modifying agent.
    Type: Application
    Filed: December 6, 2001
    Publication date: July 11, 2002
    Inventors: John D. Campbell, Jon A. Debling, Douglas J. DeYoung, Ioannis Giannakitsas, Dean R. Hellwig, David D. Schatz, Fouad Teymour, Marco A. Villalobos
  • Publication number: 20020082375
    Abstract: A continuous bulk polymerization and esterification process includes continuously charging into a reaction zone at least one ethylenically unsaturated acid-functional monomer and at least one linear or branched chain alkanol having greater than 11 carbon atoms. The process includes maintaining a flow rate through the reaction zone sufficient to provide an average residence time of less than 60 minutes and maintaining a temperature in the reaction zone sufficient to produce a polymeric product incorporating at least some of the alkanol as an ester of the polymerized ethylenically unsaturated acid-functional monomer. The polymeric product is used in various processes to produce water-based compositions including emulsions and dispersions such as oil emulsions, wax dispersions, pigment dispersions, surfactants and coatings which contain the polymeric product.
    Type: Application
    Filed: October 29, 2001
    Publication date: June 27, 2002
    Inventors: Kevin M. Andrist, John E. Blasko, Glenn C. Calhoun, Frederick C. Hansen, Dean R. Hellwig, Kurt A. Hessenius, Steven M. Hurley, D. Sunil Jayasuriya, Matthew G. Lee, Stephen J. Maccani, H. Thomas Mills, Gregory R. Peterson, Paul E. Sandvick, Dennis M. Wilson, John P. Wiruth
  • Patent number: 6355727
    Abstract: A continuous bulk polymerization and esterification process includes continuously charging into a reaction zone at least one ethylenically unsaturated acid-functional monomer and at least one linear or branched chain alkanol having greater than 11 carbon atoms. The process includes including maintaining a flow rate through the reaction zone sufficient to provide an average residence time of less than 60 minutes and maintaining a temperature in the reaction zone sufficient to produce a polymeric product incorporating at least some of the alkanol as an ester of the polymerized ethylenically unsaturated acid-functional monomer. The polymeric product is used in various processes to produce water-based compositions including emulsions and dispersions such as oil emulsions, wax dispersions, pigment dispersions, surfactants and coatings which contain the polymeric product.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: March 12, 2002
    Assignee: S. C. Johnson Commercial Markets, Inc.
    Inventors: Kevin M. Andrist, John E. Blasko, Glenn C. Calhoun, Frederick C. Hansen, Dean R. Hellwig, Kurt A. Hessenius, Steven M. Hurley, D. Sunil Jayasuriya, Matthew G. Lee, Stephen J. Maccani, H. Thomas Mills, Jr., Gregory R. Peterson, Paul E. Sandvick, Dennis M. Wilson, John P. Wiruth
  • Publication number: 20020026020
    Abstract: The present invention provides a high temperature continuous polymerization and condensation process for preparing a polymeric product. The process includes continuously charging into a reaction zone: at least one radically-polymerizable monomer having a radically polymerizable group and at least one condensation reactive functionality; and at least one modifying agent having a functional group capable of reacting with the condensation reactive functionality. The reaction zone includes at least one primary reactor, but may, and preferably does, contain a secondary reactor. The process further includes maintaining an effective temperature in the primary reactor to cause polymerization of the monomer and to allow at least a portion of the condensation reactive functionality to react with the functional group of the modifying agent.
    Type: Application
    Filed: July 2, 1999
    Publication date: February 28, 2002
    Inventors: JOHN D. CAMPBELL, JON A. DEBLING, DOUGLAS J. DEYOUNG, IOANNIS GIANNAKITSAS, DEAN R. HELLWIG, DAVID D. SCHATZ, FOUAD TEYMOUR, MARCO A. VILLALOBOS
  • Patent number: 6346590
    Abstract: The present invention provides a high temperature continuous polymerization and condensation process for preparing a polymeric product. The process includes continuously charging into a reaction zone: at least one radically-polymerizable monomer having a radically polymerizable group and at least one condensation reactive functionality; and at least one modifying agent having a functional group capable of reacting with the condensation reactive functionality. The reaction zone includes at least one primary reactor, but may, and preferably does, contain a secondary reactor. The process further includes maintaining an effective temperature in the primary reactor to cause polymerization of the monomer and to allow at least a portion of the condensation reactive functionality to react with the functional group of the modifying agent.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: February 12, 2002
    Assignee: S. C. Johnson Commercial Markets, Inc.
    Inventors: John D. Campbell, Jon A. Debling, Douglas J. DeYoung, Ioannis Giannakitsas, Dean R. Hellwig, David D. Schatz, Fouad Teymour, Marco A. Villalobos