Patents by Inventor Robert E. Sharp

Robert E. Sharp 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: 3944100
    Abstract: A containment coating for glass containers. The composition includes a principal film-forming constituent comprising an acrylate latex containing a particulate resin comprising a copolymer of acrylonitrile and ethyl acrylate. The coating also contains at least one additional latex whose presence enhances the containment properties of the film after curing. Two such auxiliary latexes exhibit this capability and the coating composition contains either or both of them. One of these is a vinyl latex whose resin solids comprise a copolymer of ethylene and vinyl acetate. The other is a vinyl/acrylic latex whose resin solids comprise a copolymer of vinyl acetate and a lower alkyl acrylate. Hexamethoxymethylmelamine or a methylated urea-formaldehyde resin is included as a cross-linking agent and either polyacrylamide or a high molecular weight water-soluble polyethylene oxide resin is present as a thickener and a thixotrope.
    Type: Grant
    Filed: March 18, 1974
    Date of Patent: March 16, 1976
    Assignee: Liberty Glass Company
    Inventors: M. Clifford Brockway, Robert E. Sharpe