Patents by Inventor Thomas H. Sutherland

Thomas H. Sutherland 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).

  • Method of bonding metals with a radio-opaque adhesive/sealant for void detection and product made
    Patent number: 4940633
    Abstract: A method and structure for providing radio-opaque polymer compounds for use in metal bonding and sealing. A powder filler comprising a high atomic number metal or compound thereof is incorporated into a polymer compound to render it more radio-opaque than the surrounding metal structures. Voids or other discontinuities in the radio-opaque polymer compound can then be detected by x-ray inspection or other non-destructive radiographic procedure.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: July 10, 1990
    Inventors: Ralph D. Hermansen, Thomas H. Sutherland, Roamer Predmore
  • Modified vinyl chloride polymers
    Patent number: 4127618
    Abstract: The impact strength of rigid vinyl halide polymers is greatly improved by graft blending therewith up to 50 parts by weight of a butyl rubber composition per hundred parts of vinyl chloride monomer. The graft blends are prepared by polymerizing vinyl chloride monomer in the presence of the butyl rubber by suspension polymerization. This impact enhancement is not gained at the expense of other properties, e.g., processability.
    Type: Grant
    Filed: January 28, 1977
    Date of Patent: November 28, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventors: Thomas H. Sutherland, Peter A. C. Smith
  • Preparation of high bulk density/low porosity PVC resins
    Patent number: 4058495
    Abstract: A high bulk density/low porosity polyvinyl chloride resin which is highly processable and thermally stable is prepared by suspension polymerization wherein a vinyl chloride monomer is polymerized in the presence of: hydroxyethyl cellulose; an internal lubricant-type long chain compound such as butyl stearate; and a water insoluble/monomer soluble initiator such as lauryl peroxide, and wherein the polymerization is performed under low shear conditions in the presence of a minimum amount of oxygen.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: November 15, 1977
    Assignee: Exxon Research & Engineering Co.
    Inventors: Joseph Serratore, Laurence F. King, Thomas H. Sutherland, James R. Wallace