Patents by Inventor Thomas W. McGee

Thomas W. McGee 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).

  • Nitrosation of aromatic compounds
    Patent number: 4232175
    Abstract: Aromatic compounds in an acidic, aqueous solution can be economically nitrosated by treatment with the hydration products of oxides of nitrogen at a temperature in the range of -15.degree. C. to 10.degree. C. The oxides of nitrogen are generated as a gas from a separate solution or slurry by the reaction of an alkali metal nitrate with a strong mineral acid at a temperature in the range of 15.degree. C. to 35.degree. C. This method of nitrosation employs relatively inexpensive reagents, but can be carried on continuously and produces unexpectedly high yield of para-nitrosated product from a monosubstituted starting material.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: November 4, 1980
    Assignee: The Dow Chemical Company
    Inventors: William E. Smith, Thomas W. McGee