Patents by Inventor Gerard Chastel

Gerard Chastel 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).

  • Synthesis of 1,2-dichloroethane by CCl.sub.4 oxychlorination of ethylene
    Patent number: 5227549
    Abstract: A major amount of 1,2-dichloroethane (D12) and lesser amounts of trichloroethane and tetrachloroethane are prepared by contacting carbon tetrachloride, ethylene and oxygen (or an oxygen-containing gas, notably air) with an oxychlorination catalyst at a temperature sufficient to produce D12, and thereafter separating such D12 from the products of reaction.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: July 13, 1993
    Assignee: Elf Atochem S.A.
    Inventors: Yves Correia, Gerard Chastel