Patents by Inventor Robert Thomas Murray

Robert Thomas Murray 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).

  • Production of fibrils
    Patent number: 4007247
    Abstract: Fibrils of thermoplastic polymer, particularly crystalline thermoplastic polymers such as polyethylene and polypropylene, are prepared by forcing a dispersion of heat softened polymer particles in a liquid medium through a pair of opposed co-axial orifices. The liquid medium is preferably aqueous and is pressurized to prevent boiling. The resulting fibrils have some degree of molecular orientation, and may be useful in the production of reinforced paper.
    Type: Grant
    Filed: September 20, 1973
    Date of Patent: February 8, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Denis George Harold Ballard, Robert Thomas Murray, George Michael Fingland Jeffs