Patents by Inventor Calum H. Munro

Calum H. Munro 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: 6410926
    Abstract: A method for determining the thickness of a dryable or curable film-forming coating by incorporating a fluorescent component into the coating. The fluorescent component is either a resin solid of the coating, a fluorescent dye or a fluorescent dye attached to a resin solid of the coating. The coating is exposed to ultraviolet or visible light which causes the fluorescent component to fluoresce. The intensity of the fluorescence of the coating is measured and the thickness or weight of the coating is determined from a known mathematical relationship between the fluorescence intensity of the coating when exposed to the light and the thickness or weight of the coating. Additionally, a curable or dryable film-forming coating composition including a curable or dryable organic resin reacted with a fluorescent tag is provided.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: June 25, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Calum H. Munro, Michael L. White, Michael J. Pawlik, Ralph C. Gray, Gregory J. McCollum
  • Publication number: 20020019480
    Abstract: Coating materials comprising polymeric particles in a geometrically ordered array are disclosed. The particles can be formed from materials having different glass transition temperatures; this allows for phase segregation between areas of different glass transition temperatures within each particle. Typically, at least 50 percent of the particles will form a hexagonal array, capable of exhibiting Bragg diffraction. Because the particles within the array do not coalesce to any appreciable extent, significant surface area is provided by the present coating materials. Thus, the present materials have particularly good sound deadening properties. Substrates coated with the present materials are also disclosed, as are methods for inhibiting sound transmission through a substrate using these coatings.
    Type: Application
    Filed: May 18, 2001
    Publication date: February 14, 2002
    Inventors: Calum H. Munro, Charles M. Kania, Umesh C. Desai
  • Patent number: 6299979
    Abstract: By use of polymeric color effect pigment, comprising a plurality of particles essentially free from metallic material, preferably free from inorganic material, and formed from a large number of layers of polymeric materials whose refractive indices differ from each other, metallic, reflective, or colored appearance is provided to coatings or other polymeric products without the use of relatively dense pigments.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: October 9, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Christopher M. Neubauer, Calum H. Munro