Patents by Inventor Edward M. Kohn

Edward M. Kohn 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).

  • Block copolymer of polyetheramide and random copolymer of polyamide and polyetheramide
    Patent number: 4273898
    Abstract: A novel composition comprises a block copolymer of a polyetheramide, e.g., poly-(4,7-dioxadecamethylene adipamide) and a random copolymer resulting from the polymerization of an ether free polyamide precursor, e.g., hexamethylenediamine salt of adipic acid and a precursor of a polyetheramide. The block copolymer can be more easily processed into useful articles such as fiber and film because it differs structurally from a corresponding block copolymer of homopolymers of polyetheramide and polyamide.
    Type: Grant
    Filed: September 6, 1979
    Date of Patent: June 16, 1981
    Assignee: Suntech, Inc.
    Inventors: Edward M. Kohn, Stephen L. Nickol, Robert M. Thompson
  • Stabilized coal-oil slurry and process
    Patent number: 4149854
    Abstract: Coal-oil slurries are stabilized by incorporation of a mixture comprised of a coal tar or pitch and a grease made from an aluminum based complex soap.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: April 17, 1979
    Assignee: Suntech, Inc.
    Inventor: Edward M. Kohn
  • Stabilized coal-oil slurry and process
    Patent number: 4149855
    Abstract: Coal-oil slurries are stabilized by incorporation of a mixture comprised of a hydrogenated coal liquid and a grease made from an aluminum based complex soap.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: April 17, 1979
    Assignee: Suntech, Inc.
    Inventors: Edward M. Kohn, William D. Vanderwerff
  • Use of hot buoyant liquid to convert pitch to continuous carbon filament
    Patent number: 3972968
    Abstract: Suitable pitch is formed into a filament continuously and upward by various means located at the bottom of a vessel containing a hot buoyant liquid. The liquid buoys up the fragile filament as it ascends the vessel from a lower region held at one temperature to an upper region where the temperature is about 450.degree.-700.degree.C. The filament emerges upward out of the liquid to move further through a still higher temperature (>900.degree.C) zone which upon leaving the previously formed pitch is a carbon filament. The liquid can be a blend of suitable molten inorganic salts or a molten inorganic oxide.
    Type: Grant
    Filed: November 21, 1974
    Date of Patent: August 3, 1976
    Assignee: Sun Oil Company of Pennsylvania
    Inventor: Edward M. Kohn