Patents by Inventor Michael Kallaur

Michael Kallaur 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).

  • Sheet molding compound
    Patent number: 4289684
    Abstract: Sheet molding compound is prepared from unsaturated polyester resin syrup, particulate fillers, randomly oriented reinforcing fibers, a polyhydroxy polyacrylate or polyhydroxy polymethacrylate and an organic polyisocyanate. At the time of manufacturing the sheet molding compound, the organic diisocyanate combines with the polyhydroxy polyacrylate or polyhydroxy polymethacrylate to thicken the sheet molding compound without causing polymerization of the unsaturated polyester resin syrup.
    Type: Grant
    Filed: April 23, 1980
    Date of Patent: September 15, 1981
    Assignee: Freeman Chemical Corporation
    Inventor: Michael Kallaur