Patents by Inventor Larry F. Hanneman

Larry F. Hanneman 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).

  • Low-volatility pressure sensitive adhesives
    Patent number: 5597648
    Abstract: Pressure sensitive adhesives (PSA) having a reduced volatile fraction content are provided by a process which comprises extracting a cured PSA with a fluid in or near its supercritical state. The process provides PSAs and articles containing PSAs which meet the volatility requirements of ASTM E-595. A silicone PSA transfer film having utility in outer space is obtained.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: January 28, 1997
    Assignee: Dow Corning Corporation
    Inventors: Larry F. Hanneman, Val Krukonis, Thomas J. Tangney, James J. Watkins
  • Low-volatility pressure sensitive adhesives
    Patent number: 5436061
    Abstract: Pressure sensitive adhesives (PSA) having a reduced volatile fraction content are provided by a process which comprises extracting a cured PSA with a fluid in or near its supercritical state. The process provides PSAs and articles containing PSAs which meet the volatility requirements of ASTM E-595. A silicone PSA transfer film having utility in outer space is obtained.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: July 25, 1995
    Assignee: Dow Corning Corporation
    Inventors: Larry F. Hanneman, Val Krukonis, Thomas J. Tangney, James J. Watkins
  • Use of hydrogen silsesquioxane resin fractions as coating materials
    Patent number: 5118530
    Abstract: The present invention relates to hydrogen silsesquioxane resin (H-resin) fractions derived from an extraction process using one or more fluids at, near or above their critical state. These fractions can comprise narrow molecular weight fractions with a dispersity less than about 3.0 or fractions useful for applying coatings on substrates. The invention also relates to a method of using these fractions for forming ceramic coatings on substrates.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: June 2, 1992
    Assignee: Dow Corning Corporation
    Inventors: Larry F. Hanneman, Theresa E. Gentle, Kenneth G. Sharp
  • Hydrogen silsesquioxane resin fractions and their use as coating materials
    Patent number: 5063267
    Abstract: The present invention relates to hydrogen silsesquioxane resin (H-resin) fractions derived from an extraction process using one or more fluids at, near or above their critical state. These fractions can comprise narrow molecular weight fractions with a dispersity less than about 3.0 or fractions useful for applying coatings on substrates. The invention also relates to a method of using these fractions for forming ceramic coatings on substrates.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: November 5, 1991
    Assignee: Dow Corning Corporation
    Inventors: Larry F. Hanneman, Theresa E. Gentle, Kenneth G. Sharp