Patents by Inventor Frederick C. Hansen

Frederick C. Hansen 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
  • 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
  • Patent number: 6020061
    Abstract: An emulsion polymerization system comprising a polymeric stabilizer, wherein the polymeric stabilizer comprises one or more alpha olefin/maleic anhydride copolymers and is present in the emulsion polymerization system in an amount greater than 0 and less than 5% by weight.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: February 1, 2000
    Assignee: S. C. Johnson Commercial Markets, Inc.
    Inventors: Steven M. Hurley, Frederick C. Hansen
  • Patent number: 5058523
    Abstract: A device for preventing inadvertent headlight illumination includes a first panel for securing the device to an interior surface of a vehicle. A second panel is attached to the first panel and is movable with respect thereto for exposing a warning legend. The warning legend is disposed on one or both of the panels and is exposed to the view of the operator when the second panel is moved. The warning device also includes a motor vehicle door from within the vehicle. A cavity is formed in the door and a panel is received in the cavity. The panel is movable from a repose position to a warning position in which it also interferes with access to the interior door handle.
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: October 22, 1991
    Inventors: John W. Mikkonen, Frederick C. Hansen
  • Patent number: 4936244
    Abstract: A device for preventing inadvertent headlight illumination includes a first panel for securing the device to an interior surface of a vehicle. A second panel is attached to the first panel and is moveable with respect thereto for exposing a warning legend. The warning legend is disposed on one or both of the panels and is exposed to the view of the operator when the second panel is moved. Several embodiments are disclosed.
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: June 26, 1990
    Inventors: Frederick C. Hansen, John W. Mikkonen
  • Patent number: 4730019
    Abstract: A coating composition having improved heat resistance is disclosed. The coating composition comprises a ligand-free monomer/maleic anhydride polymer, and an effective amount of a metal ion-containing fugitive ligand complex to solubilize the polymer in an aqueous medium.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: March 8, 1988
    Assignee: S. C. Johnson & Son, Inc.
    Inventor: Frederick C. Hansen
  • Patent number: 4623692
    Abstract: A process for solubilizing a ligand-free monomer/maleic anhydride polymer into an aqueous medium employing a metal fugitive ligand complex to disperse the polymer.
    Type: Grant
    Filed: March 14, 1985
    Date of Patent: November 18, 1986
    Assignee: S. C. Johnson & Son, Inc.
    Inventor: Frederick C. Hansen
  • Patent number: 4598118
    Abstract: A coating composition which produces glossy, clear coatings comprises a terpolymer of an anhydride, a higher alphaolefin and either a lower alphaolefin or a mono-alkenyl aromatic compound; an acrylic emulsion polymer and the balance of the composition being an aqueous vehicle.
    Type: Grant
    Filed: June 28, 1983
    Date of Patent: July 1, 1986
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Frederick C. Hansen, Richard A. Kiehlbauch
  • Patent number: 3971315
    Abstract: A marking structure for various uses, such as in hand stamps or other printing members, or in ink pads, ink rolls or other inking members. The marking structure is characterized by at least two layers, including an outer layer and an underlying reservoir layer. The outer layer has interconnected aggregates of thermoplastic resin, forming a microporous network of pores, and a marking fluid contained within the network. The reservoir layer has an open-pored macroporous structure, such as an open-cell polyurethane foam, impregnated with a microporous thermoplastic resin, in the form of interconnected aggregates, and an additional amount of the marking fluid. The resin aggregates of the outer and reservoir layers are joined at the interface of the layers to form a cohesive structure.
    Type: Grant
    Filed: August 12, 1974
    Date of Patent: July 27, 1976
    Assignee: Porelon, Inc.
    Inventor: Frederick C. Hansen