Patents by Inventor William W. C. Hart

William W. C. Hart 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).

  • Blend of polyketone polymer with an amorphous polyamide polymer
    Patent number: 4960838
    Abstract: A composition comprising a blend of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and an amorphous polyamide, a process for making the blend, and articles prepared thereof.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: October 2, 1990
    Assignee: Shell Oil Company
    Inventors: William P. Gergen, William W. C. Hart
  • Water wash of olefin/carbon monoxide polymer
    Patent number: 4960865
    Abstract: The present invention relates to an improved process for working up a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon by washing the polymer with hot water.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: October 2, 1990
    Assignee: Shell Oil Company
    Inventors: George C. Blytas, Zaida Diaz, William W. C. Hart
  • Polymer blend
    Patent number: 4956412
    Abstract: Polymer blends of improved properties are produced by uniformly mixing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, and a copolymer of a vinyl aromatic monomer and an alkenyl nitrile.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: September 11, 1990
    Assignee: Shell Oil Company
    Inventors: William P. Gergen, Robert G. Lutz, William W.C. Hart
  • Metal electronic package sealed with thermoplastic having a grafted metal deactivator and antioxidant
    Patent number: 4812896
    Abstract: A package and process of assembling a package adapted for housing an electronic component. The package includes metallic base, lid and leadframe components sealed together with a thermoplastic material. The thermoplastic has an additive consisting essentially of a metal deactivator and a primary antioxidant grafted thereto without cross linking so as to maintain the thermoplastic properties.
    Type: Grant
    Filed: November 13, 1986
    Date of Patent: March 14, 1989
    Assignee: Olin Corporation
    Inventors: Eugene F. Rothgery, William W. C. Hart, Edward F. Smith, III, Steven D. Phillips, Bonnie B. Sandel, David F. Gavin
  • High heat, sound damping metal-polymer laminate
    Patent number: 4599261
    Abstract: A novel metal-polymer-metal structural laminate is disclosed having an unexpected balance of property advantages including light weight, sound damping, good adhesion between polymer and metal, high stiffness and automotive paint bake oven stability. The high heat, sound damping laminate has a polymeric resinous core comprising the blend of an engineering thermoplastic resin, butene-1 polymer and a selectively hydrogenated monoalkenyl arene-conjugated diene block copolymer.
    Type: Grant
    Filed: February 6, 1984
    Date of Patent: July 8, 1986
    Assignee: Shell Oil Company
    Inventors: William W. C. Hart, William H. Korcz
  • Two-phase, heat-curable polyepoxide-unsaturated monomer compositions
    Patent number: 4410680
    Abstract: A curable thermosetting resin, especially suitable for RIM applications, comprising a blend of(a) 100 parts by weight of a polyepoxide, particularly a normally liquid polyepoxide and more particularly a glycidyl polyether of a polyhydric phenol,(b) from about 10 to about 200 parts by weight of at least one ethylenically unsaturated monomer, especially an aromatic monomer, and preferably styrene,(c) a curing amount of an aliphatic or cycloaliphatic polyfunctional amine or a polyamide, and(d) an effective amount of an amine-compatible free-radical initiator.
    Type: Grant
    Filed: November 4, 1982
    Date of Patent: October 18, 1983
    Assignee: Shell Oil Company
    Inventors: Thomas F. Brownscombe, William W. C. Hart