Patents by Inventor Donald E. Boynton

Donald E. Boynton 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).

  • Method of visbreaking polypropylene
    Patent number: 4282076
    Abstract: A process for preparing an environmentally stable plastic composition having narrow molecular weight distribution by visbreaking a propylene polymer using an activated portion of the propylene polymer as a prodegradant. The process includes forming the prodegradant by activating a portion of the propylene polymer either by exposure to ionizing radiation or by oxidation.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: August 4, 1981
    Assignee: Hercules Incorporated
    Inventor: Donald E. Boynton