Patents Examined by Joseph E. Schuter
  • Acetoxymethyl derivatives of polyunsaturated fatty triglycerides as primary plasticizers for polyvinylchloride
    Patent number: 4083816
    Abstract: Acetoxymethyl derivatives of mono- and polyunsaturated fatty compounds including their vegetable oil triglycerides were prepared and found to function as primary plasticizers. Polyvinylchloride resins plasticized by the derivative compositions of the invention have permanance properties equal or superior to resins plasticized by dioctyl phthalate, dioctyl sebacate, or other commercial plasticizers.
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: April 11, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Edwin N. Frankel, Everett H. Pryde