Patents by Inventor Joseph David Tanzer

Joseph David Tanzer 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).

  • Aqueous composition containing polymeric nanoparticles
    Patent number: 7071261
    Abstract: An aqueous composition including an aqueous dispersion of polymeric nanoparticles having a mean diameter of from 1 to 50 nanometers, the particles including, as polymerized units, at least one multi-ethylenically-unsaturated monomer and at least one ethylenically unsaturated water soluble monomer is discloseded. Certain embodiments of the composition include pigment particles and other polymer particles. The aqueous compositions include aqueous coating compositions.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: July 4, 2006
    Assignee: Rohm and Haas Company
    Inventors: Wayne Devonport, Ralph Craig Even, Ann Robertson Hermes, Dennis Paul Lorah, Joseph David Tanzer, Antony Keith VanDyk
  • Stable mixtures containing opacifying pigments
    Patent number: 6919400
    Abstract: A number of stable opacifying mixtures are disclosed which contain specific combinations and levels of titanium dioxide, thickeners, and dispersants. These stable mixtures may be employed in a method of making paints using prepaints or as a conventional component in a coating such as a paint, or in other end-uses where opacifying pigments are employed.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: July 19, 2005
    Assignee: Rohm and Haas Company
    Inventors: Edwin Hugh Nungesser, John Michael Friel, Joseph David Tanzer, Jerry William Washel
  • Method of improving viscosity stability upon addition of a colorant component
    Patent number: 6887928
    Abstract: A tinting composition containing a colorant component is disclosed. In addition, a method of improving the viscosity stability of a composition upon the addition of a colorant component employing an associative thickener, a macromolecular compound having a hydrophobic cavity, a dispersing resin and combinations thereof is disclosed.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: May 3, 2005
    Assignee: Rohm and Haas Company
    Inventors: Joseph David Tanzer, Jerome Michael Harris, Henry Jude Eichman, Homayoun Jamasbi, Dennis Paul Lorah
  • Aqueous composition containing polymeric nanoparticles
    Publication number: 20030232914
    Abstract: An aqueous composition including an aqueous dispersion of polymeric nanoparticles having a mean diameter of from 1 to 50 nanometers, the particles including, as polymerized units, at least one multi-ethylenically-unsaturated monomer and at least one ethylenically unsaturated water soluble monomer is discloseded. Certain embodiments of the composition include pigment particles and other polymer particles. The aqueous compositions include aqueous coating compositions.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 18, 2003
    Inventors: Wayne Devonport, Ralph Craig Even, Ann Robertson Hermes, Dennis Paul Lorah, Joseph David Tanzer, Antony Keith VanDyk
  • Method of improving viscosity stability upon addition of a colorant component
    Publication number: 20030176569
    Abstract: A tinting composition containing a colorant component is disclosed. In addition, a method of improving the viscosity stability of a composition upon the addition of a colorant component employing an associative thickener, a macromolecular organic compound having a hydrophobic cavity, a dispersing resin and combinations thereof is disclosed.
    Type: Application
    Filed: April 4, 2003
    Publication date: September 18, 2003
    Inventors: Joseph David Tanzer, Jerome Michael Harris, Henry Jude Eichman, Homayoun Jamasbi, Ronald Carl Faulk, Dennis Paul Lorah
  • Method of improving viscosity stability upon addition of a colorant component
    Publication number: 20020165313
    Abstract: A tinting composition containing a colorant component is disclosed. In addition, a method of improving the viscosity stability of a composition upon the addition of a colorant component employing an associative thickener, a macromolecular compound having a hydrophobic cavity, a dispersing resin and combinations thereof is disclosed.
    Type: Application
    Filed: December 26, 2001
    Publication date: November 7, 2002
    Inventors: Joseph David Tanzer, Jerome Michael Harris, Henry Jude Eichman, Homayoun Jamasbi
  • Stable mixtures containing opacifying pigments
    Publication number: 20020002934
    Abstract: A number of stable opacifying mixtures are disclosed which contain specific combinations and levels of titanium dioxide, thickeners, and dispersants. These stable mixtures may be employed in a method of making paints using prepaints or as a conventional component in a coating such as a paint, or in other end-uses where opacifying pigments are employed.
    Type: Application
    Filed: February 16, 2001
    Publication date: January 10, 2002
    Inventors: Edwin Hugh Nungesser, John Michael Friel, Joseph David Tanzer, Jerry William Washel