Patents by Inventor Kab Sik Seo

Kab Sik Seo 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).

  • Copolyesters based on 1,4-cyclohexanedimethanol having improved stability
    Patent number: 5773554
    Abstract: This invention relates to a method of melt processing a copolyester having a moisture content of 0.02 weight % or more comprising:(a) one or more dicarboxylic acids, and(b) a glycol component comprising from about 60 to 100 mole % 1,4-cyclohexanedimethanol.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: June 30, 1998
    Assignee: Eastman Chemical Company
    Inventors: James Palmer Dickerson, Andrew Edwin Brink, Alan Joseph Oshinski, Kab Sik Seo
  • Copolyesters based on 1,4-cyclohexanedimethanol having improved stability
    Patent number: 5656715
    Abstract: This invention relates to a method of melt processing a copolyester having a moisture content of 0.02 weight % or more comprising:(a) one or more dicarboxylic acids, and(b) a glycol component comprising from about 60 to 100 mole % 1,4-cyclohexanedimethanol.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: August 12, 1997
    Assignee: Eastman Chemical Company
    Inventors: James Palmer Dickerson, Andrew Edwin Brink, Alan Joseph Oshinski, Kab Sik Seo