Patents Assigned to American Polymers
  • Patent number: 4159390
    Abstract: A plasticizer is disclosed which comprises di-tertiary-octyl-diphenyloxide possessing a viscosity in the range of from about 1000 to 2100 centistokes. The plasticizer of the present invention is advantageously employed in film-forming cellulosic derivatives such as ethylcellulose which may be molded by extrusion. A method of synthesizing the plasticizer is also disclosed.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: June 26, 1979
    Assignee: American Polymers
    Inventors: Harry Klingel, Frank E. Ellison