Patents by Inventor Elizabeth Celia Sharkey

Elizabeth Celia Sharkey 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).

  • Continuous process for the preparation of amines
    Patent number: 6683216
    Abstract: Disclosed is a process for the preparation of amines by continuously feeding a carboxamide, aqueous alkaline hypohalite, and aqueous alkaline hydroxide to a first reaction zone to form a N-halocarboxamide, measuring the concentration of at least one reaction component in the effluent from the first reaction zone, and using the result of that measurement to control the feed rate of at least one of the feed components of to achieve at least 90% conversion of the carboxamide in the first reaction zone. The effluent from the first reaction zone is fed continuously to a second reaction zone where it further reacts to form an aqueous solution of an amine. The effluent from the second reaction zone may be fed continuously to a distillation column. The process is particularly useful for the preparation of cyclopropylamine.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: January 27, 2004
    Assignee: Eastman Chemical Company
    Inventors: Joseph Robert Zoeller, Norma Lindsey Buchanan, Elizabeth Celia Sharkey, Daniel Latham Terrill, Steven Paul Bellner