Patents by Inventor Mark K. Cox

Mark K. Cox 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 hydrolysis of cellulose acetate
    Patent number: 5364935
    Abstract: Disclosed is a process comprising continuously flowing a composition through a hydrolysis zone so as to achieve a residence time distribution such that at least 81% of the area under the residence time distribution curve is within plus or minus 50% of the mean residence time. The composition comprises cellulose triacetate in the range of 5 to 30%, water in the range of 4 to 25%, and acetic acid in the range of 45 to 91%.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: November 15, 1994
    Assignee: Eastman Chemical Company
    Inventors: Mark K. Cox, Tim J. Frederick