Patents by Inventor Peter J. Kozak

Peter J. Kozak 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).

  • Selective synthesis of 2-haloalkanethiols and episulfides therefrom
    Patent number: 4101557
    Abstract: Haloalkanethiols are synthesized through the free radical liquid phase reaction of halogenated olefins with an excess of hydrogen sulfide. High product yields to the desired haloalkanethiol products are secured when a 3 to 20 fold molar excess of hydrogen sulfide to halogenated olefin is used. Desirably, the synthesis is carried out to a conversion level not exceeding 90%. The haloalkanethiol products can be subsequently dehydrohalogenated to the corresponding episulfide products by reacting the haloalkanethiol product with a substantially equal molar amount of anhydrous ammonia.
    Type: Grant
    Filed: April 27, 1970
    Date of Patent: July 18, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventors: Wolfgang H. Mueller, Alexis A. Oswald, Peter J. Kozak