Patents by Inventor Billy E. Burgert

Billy E. Burgert 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).

  • Preparation of block copolymers and products therefrom
    Patent number: 4169115
    Abstract: Block copolymers of AB or ABA configuration are prepared by anionically polymerizing one component, terminating the living polymer with sulfur or an episulfide and completing polymerization of the remaining block portion by free-radical polymerization.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: September 25, 1979
    Assignee: The Dow Chemical Company
    Inventors: Lu H. Tung, Grace Y. Lo, Billy E. Burgert