Patents by Inventor Joel A. Colmar

Joel A. Colmar 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).

  • Fly ash filler and polyvinyl chloride compositions and conduits therefrom
    Publication number: 20020040084
    Abstract: A composition comprising fly ash particles with an average particle diameter of not greater than 100 micrometers and a moisture content of not greater than 0.25 percent by weight. The compositions are useful as both a filler and a colorant in polymer containing compositions, particularly polyvinyl chloride compositions for extruding pipes and conduits. Desirably, the composition is used at a filler loading level of from about 1 to about 80 parts by weight of the fly ash per hundred parts of the polymer. Fly ash-filled polyvinyl chloride compositions containing the fly ash as described meet commercial requirements and are economically and environmentally beneficial.
    Type: Application
    Filed: January 25, 2001
    Publication date: April 4, 2002
    Applicant: Boral Material Technologies, Inc.
    Inventors: Joel A. Colmar, Aron R. McBay