Patents Represented by Attorney, Agent or Law Firm Richard D. Fuerlle
  • Pressurized chlorination and bromination of aromatic compounds
    Patent number: 6211399
    Abstract: Disclosed is a method of adding 1 to 4 chlorine or bromine atoms to an aromatic ring of compound that has at least one electron-withdrawing groups on that ring. The aromatic compound is reacted with a chlorinating agent or a brominating agent in the presence of about 0.1 to about 10 mole % of a Lewis acid catalyst at a temperature of ambient to about 100° C. and a pressure of about 10 to about 100 psig.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: April 3, 2001
    Assignee: Occidental Chemical Corporation
    Inventors: Michael C. Savidakis, David C. Johnson