Patents by Inventor Keegan Rankin

Keegan Rankin 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 of making branched polyester resin with a target glass transition temperature
    Patent number: 9580543
    Abstract: A method of making a branched polyester resin with a target glass transition temperature. Particularly, the target glass transition temperature can be achieved by adjusting the molar ratio of the first cyclic alkylene carbonate to the second cyclic alkylene carbonate; adjusting the molar ratio of the first alkoxylated BPA monomer to the second alkoxylated BPA monomers; adjusting the molar ratio of the first diacid to the second diacid; or any combination thereof.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: February 28, 2017
    Assignee: XEROX CORPORATION
    Inventors: Shigang S. Qiu, Karen A. Moffat, Keegan Rankin