Patents by Inventor Waldo R. Greene

Waldo R. Greene 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).

  • Process and molding apparatus having a mold release coating on the cavity thereof for molding formable and homogeneous ceramic/polyester resin molding composition
    Patent number: 4399088
    Abstract: A mold release agent designed for use with ceramic/polyester molding compositions is disclosed. The mold release agent comprises 15-30 weight percent polyethylene having a molecular weight of 15,000 to 30,000 and 70-85 weight percent of a mineral oil of 345-355 Saybolt Seconds Universal (SSU) at 100.degree. F. In a preferred molding procedure the surface of the mold is uniformly coated to a thickness of 0.5-2 mm with the mineral oil/polyethylene composition by melt-flow at 200.degree.-300.degree. F.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: August 16, 1983
    Assignee: PCI Group, Inc.
    Inventor: Waldo R. Greene