Patents by Inventor Gary D. Boone

Gary D. Boone 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).

  • Copolymerization of dicarboxylic acids and dialkyl esters of dicarboxylic acids to form polyesters
    Patent number: 5296587
    Abstract: The present invention relates to a process for copolymerizing a dicarboxylic acid, a dialkyl ester, and a diol in the presence of a transesterification catalyst. The process involves heating a mixture containing carboxylic acids and esters in excess diol at elevated temperatures in the presence of a transesterification catalyst and returning any vaporized diol to the reaction vessel until the theoretical amount of alcohol and/or water have been evolved. The alcohol and/or water of reaction is not allowed to return to the vessel. When the theoretical weight of alcohol and/or water is collected, the excess diol is removed and the polymerization is allowed to proceed.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: March 22, 1994
    Assignee: Eastman Chemical Company
    Inventors: Charles E. Sumner, Jr., Gary D. Boone
  • Diols and polyesters made therefrom
    Patent number: 5157102
    Abstract: Provided is indeno[1,2-.beta.] fluorene-6,12-diol, useful as an intermediate to polyesters. Also provided are derivatives of this compound and novel polyesters having residues of indeno[1,2-.beta.] fluorene-6,12-diol or its derivatives copolymerized therein and shaped or formed articles comprised of the novel polyesters.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: October 20, 1992
    Assignee: Eastman Kodak Company
    Inventors: Charles E. Sumner, Jr., Ernest W. Arnold, Gary D. Boone