Patents by Inventor Edwin Taylor Boyd

Edwin Taylor Boyd 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).

  • Method for making cellulose esters incorporating near-infrared fluorophores
    Patent number: 6036885
    Abstract: A cellulosic ester has associated with the ester at least one near infrared fluorophore. A method for incorporating the near infred fluorophore into the cellulosic ester is also provided. In the method, the near infrared fluorophore is dissolved in a strong acid and precipitated to form an acid paste. The paste is then added to an activated cellulose, such as a hydrolyzed cellulose acetate, in the presence of at least one acid and acid anhydride. Advantageously, such marked cellulosic materials can be solvent spun into staple fibers which may be further utilized in known materials, webs and articles.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: March 14, 2000
    Assignee: Eastman Chemical Company
    Inventors: James John Krutak, Sr., Thomas Vernon McCray, Edwin Taylor Boyd, Fred Dewey Barlow, Jr., Melvin Glenn Mitchell, Lee Reynolds Partin