Patents by Inventor Joseph Michael Hoefler

Joseph Michael Hoefler 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 silica dispersion
    Patent number: 8309615
    Abstract: An aqueous silica dispersion containing silica particles dispersed in an aqueous medium is provided. The surfaces of the silica particles are treated with reacted aminosilane compound. The aqueous silica dispersion also contains anionic polymeric dispersing agent. The dispersion of the silica particles into an aqueous medium containing both anionic polymeric dispersing agent and aminosilane compound allows the preparation of aqueous silica dispersions at higher solids and/or low viscosities than aqueous silica dispersions that are prepared without either the anionic polymeric dispersing agent or the aminosilane compound. The aqueous silica dispersion is combinable with aqueous emulsion polymers to modify the physical or appearance properties of articles formed from the emulsion polymer.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: November 13, 2012
    Assignee: Rohm and Haas Company
    Inventor: Joseph Michael Hoefler
  • Aqueous polymeric composition containing polymeric nanoparticles and treatments prepared therefrom
    Patent number: 7091275
    Abstract: An aqueous polymeric composition containing select polymeric nanoparticles is provided. The select polymeric nanoparticles contain as polymerized units at least one multiethylenically unsaturated monomer and at least one water soluble monomer; and have a mean diameter in the range of from 1 to 50 nanometers. Also provided are aqueous polymeric compositions that further contain second particles such as pigment particles or second polymer particles. The aqueous polymeric composition is useful for preparing coatings having at least one improved property compared to a coating absent the select polymeric nanoparticles. Further, the aqueous polymeric composition is useful for treating wood. A coating prepared from the aqueous polymeric composition is also provided.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: August 15, 2006
    Assignee: Rohm and Haas Company
    Inventors: David Richard Amick, Wayne Devonport, Antony Keith Van Dyk, Catherine Ann Finegan, Joseph Michael Hoefler, Dennis Paul Lorah, Alvin Michael Maurice
  • Aqueous silica dispersion
    Patent number: 7056449
    Abstract: An aqueous silica dispersion containing silica particles dispersed in an aqueous medium is provided. The surfaces of the silica particles are treated with reacted aminosilane compound. The aqueous silica dispersion also contains anionic polymeric dispersing agent. The dispersion of the silica particles into an aqueous medium containing both anionic polymeric dispersing agent and aminosilane compound allows the preparation of aqueous silica dispersions at higher solids and/or low viscosities than aqueous silica dispersions that are prepared without either the anionic polymeric dispersing agent or the aminosilane compound. The aqueous silica dispersion is combinable with aqueous emulsion polymers to modify the physical or appearance properties of articles formed from the emulsion polymer.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: June 6, 2006
    Assignee: Rohm and Haas Company
    Inventor: Joseph Michael Hoefler
  • Aqueous silica dispersion
    Publication number: 20040034123
    Abstract: An aqueous silica dispersion containing silica particles dispersed in an aqueous medium is provided. The surfaces of the silica particles are treated with reacted aminosilane compound. The aqueous silica dispersion also contains anionic polymeric dispersing agent. The dispersion of the silica particles into an aqueous medium containing both anionic polymeric dispersing agent and aminosilane compound allows the preparation of aqueous silica dispersions at higher solids and/or low viscosities than aqueous silica dispersions that are prepared without either the anionic polymeric dispersing agent or the aminosilane compound. The aqueous silica dispersion is combinable with aqueous emulsion polymers to modify the physical or appearance properties of articles formed from the emulsion polymer.
    Type: Application
    Filed: August 4, 2003
    Publication date: February 19, 2004
    Inventor: Joseph Michael Hoefler