Patents by Inventor Christopher C. Sommer

Christopher C. Sommer 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).

  • Sulfodechlorinating aromatic compounds
    Patent number: 6040477
    Abstract: Disclosed is method of sulfodechlorinating an aromatic compound. A composition is prepared of (1) an aromatic compound having the general formula ##STR1## Where R is CHO or COOH and n is 1 to 3, (2) an alkali metal or alkaline earth metal sulfite or bisulfite in an amount stoichiometric to about 20 mole % in excess of stoichiometric, (3) water in an amount sufficient to form a solution of the sulfite or bisulfite, and (4) sufficient base to raise the pH of the composition to about 10 to about 14. The composition is heated at about 150 to about 200.degree. C. No catalyst is present in the composition.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: March 21, 2000
    Assignee: Occidental Chemical Corporation
    Inventors: Habib Hichri, Viesturs Lesins, Christopher C. Sommer