Patents by Inventor William C. Tung

William C. Tung 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).

  • Process for fast heat-up polyesters
    Patent number: 6660792
    Abstract: A thermoplastic composition, such as PET, contains an inert iron compound such as FeP, FeSi, or combinations thereof, having no chemical activity in the PET, with or without certain quantities of elemental metals, such as antimony, and a reducing agent or other stabilizer such as phosphite or phosphoric acid. A method for forming this composition is also disclosed. The composition may also optionally contain a color stabilizer, a DEG inhibitor and stress crack inhibiting agents.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: December 9, 2003
    Assignee: M & G USA Corporation
    Inventors: Freddie Lee Massey, George Aaron Deisz, Kevin Rollick, William C. Tung
  • Process for fast heat-up polyesters
    Publication number: 20030018115
    Abstract: A thermoplastic composition, such as PET, contains an inert iron compound such as FeP, FeSi, or combinations thereof, having no chemical activity in the PET, with or without certain quantities of elemental metals, such as antimony, and a reducing agent or other stabilizer such as phosphite or phosphoric acid. A method for forming this composition is also disclosed. The composition may also optionally contain a color stabilizer, a DEG inhibitor and stress crack inhibiting agents.
    Type: Application
    Filed: December 14, 2000
    Publication date: January 23, 2003
    Inventors: Freddie L. Massey, George A. Deisz, Kevin Rollick, William C. Tung
  • Reticulated bacterial cellulose reinforcement for elastomers
    Patent number: 5290830
    Abstract: Reinforced elastomeric articles, such as tires, wherein the reinforcement is reticulated bacterial cellulose are provided. Reticulated bacterial cellulose has an average diameter of about 0.1 micron and a substantially infinite aspect ratio. The reinforced article comprises about 2 phr to 10 phr of the cellulose reinforcement.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: March 1, 1994
    Assignee: The Goodyear Tire and Rubber Company
    Inventors: William C. Tung, Deborah A. Tung, Douglas D. Callander, Richard G. Bauer