Patents by Inventor Jack Zomlefer

Jack Zomlefer 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).

  • High impact polystyrene resin
    Patent number: 4183878
    Abstract: Polystyrene resins of high impact are provided by graft copolymerization of styrene with elastomeric polymers of a diene monomer in the presence of a peroxy-free azo catalyst such as 1-cyano-(tert-butylazo) cyclohexane.
    Type: Grant
    Filed: July 26, 1978
    Date of Patent: January 15, 1980
    Assignee: Solar Chemical Corporation
    Inventors: Harry A. Biletch, Rodney Route, Jack Zomlefer