Patents by Inventor Edward G. Millen

Edward G. Millen 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).

  • Curing of polysulfide liquid polymers with zinc oxide and a source of copper ions
    Patent number: 4518767
    Abstract: A curable liquid polysulfide polymer composition having improved toughness and tear resistance, comprising a major portion of a liquid organic polysulfide polymer having a molecular weight of about 500 to about 10,000 atomic mass units; zinc oxide; and a source of copper ions, preferably cupric acetate. In the preferred composition the liquid organic polysulfide polymer is a mixture of two polymers having different molecular weights.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: May 21, 1985
    Assignee: Morton Thiokol, Inc.
    Inventor: Edward G. Millen
  • Polysulfide rubbers suitable for hot application
    Patent number: 4314920
    Abstract: The use of polysulfide rubbers cured with zinc oxide and tetramethylthiuram disulfide and other sulfur containing cure accelerators for polyisoprene rubbers in hot applied processes and articles formed thereby are disclosed. The compositions are useful as hot applied sealants and in the extrusion of hoses and similar rubber articles.
    Type: Grant
    Filed: March 12, 1980
    Date of Patent: February 9, 1982
    Assignee: Thiokol Corporation
    Inventor: Edward G. Millen
  • Method of making an article comprising polysulfide rubbers
    Patent number: 4263078
    Abstract: The use of polysulfide rubbers cured with zinc oxide and tetramethylthiuram disulfide and other sulfur containing cure accelerators for polyisoprene rubbers in hot applied processes and articles formed thereby are disclosed. The compositions are useful as hot applied sealants and in the extrusion of hoses and similar rubber articles.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: April 21, 1981
    Assignee: Thiokol Corporation
    Inventors: Edward G. Millen, Frank K. Pypcznski
  • Cure accelerator for polysulfide polymer based sealants
    Patent number: T974003
    Abstract: cure rate of liquid polysulfide polymer based sealants may be accelerated by incorporation of tetramethylene sulfone therein. This is particularly of importance in one part sealants cured by ZnO.sub.2.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: September 5, 1978
    Inventor: Edward G. Millen