Patents by Inventor Thomas DeMain

Thomas DeMain 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).

  • Mar resistance, non-glare transparent acrylic sheet with consistent optical properties at various sheet thicknesses
    Patent number: 6861129
    Abstract: Disclosed is a mar resistant transparent co-extruded sheet which is comprised of (a) a cap layer containing particles having a mean particle size of about 1 to 60 microns wherein 90% of the particles are less than 70 microns, at a loading of 0.1 to 18%, melt blended with an acrylic matrix, wherein the particle and matrix have refractive indices within 0.020 units when measured in conformance with ASTM D 542; and (b) a clear substrate layer comprised of an acrylic composition, wherein the substrate has a refractive index within 0.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: March 1, 2005
    Assignee: Atofina
    Inventors: Jack J. Reilly, Jana Lamberson, Gary Hall, Thomas DeMain
  • Mar resistance, non-glare transparent acrylic sheet with consistent optical properties at various sheet thicknesses
    Publication number: 20040018349
    Abstract: Disclosed is a mar resistant transparent co-extruded sheet which is comprised of (a) a cap layer containing particles having a mean particle size of about 1 to 60 microns wherein 90% of the particles are less than 70 microns, at a loading of 0.1 to 18%, melt blended with an acrylic matrix, wherein the particle and matrix have refractive indices within 0.020 units when measured in conformance with ASTM D 542; and (b) a clear substrate layer comprised of an acrylic composition, wherein the substrate has a refractive index within 0.
    Type: Application
    Filed: March 17, 2003
    Publication date: January 29, 2004
    Inventors: Jack J. Reilly, Jana Lamberson, Gary Hall, Thomas DeMain