Patents by Inventor Jessica Freeman

Jessica Freeman 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).

  • Methods for producing a vinyl acetate composition having a low impurity content
    Patent number: 9193663
    Abstract: In one embodiment, the invention is to a method for producing a vinyl acetate composition. The method comprises the step of contacting acetic acid, oxygen, and ethylene under conditions effective to form a crude vinyl acetate composition comprising vinyl acetate, acetic acid, residual oxygen, and water. The method further comprises the step of contacting the crude vinyl acetate composition or a derivative thereof with at least one scavenger to form a treated crude vinyl acetate composition.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: November 24, 2015
    Assignee: Celanese International Corporation
    Inventors: Jessica Freeman, Qiang Yao, Lauren Moore, Ilias Kotsianis, Victor Johnston, Kevin Hanks
  • Processes for Producing Vinyl Acetate Composition Having Low Impurity Content
    Publication number: 20130261330
    Abstract: The present invention, in one embodiment, is to a process for inhibiting impurity formation a vinyl acetate formation reaction. The process comprises the step of providing a reactor comprising an inlet section, an outlet section, a filler (or fillers), and a catalyst block section. The filler is disposed in the outlet section. The catalyst block section may be in communication with and configured between the inlet and outlet sections. The process further comprises the steps of introducing the reactants to the inlet section and contacting the reactants in the catalyst block section under conditions effective to form a crude vinyl acetate composition. The process may further comprise the step of directing the crude vinyl acetate composition into the outlet section, which comprises the filler.
    Type: Application
    Filed: February 20, 2013
    Publication date: October 3, 2013
    Inventors: Naveed Aslam, Jessica Freeman, Ilias S. Kotsianis, Lauren Moore, Quiang Yao
  • Methods for Producing a Vinyl Acetate Composition Having a Low Impurity Content
    Publication number: 20120108842
    Abstract: In one embodiment, the invention is to a method for producing a vinyl acetate composition. The method comprises the step of contacting acetic acid, oxygen, and ethylene under conditions effective to form a crude vinyl acetate composition comprising vinyl acetate, acetic acid, residual oxygen, and water. The method further comprises the step of contacting the crude vinyl acetate composition or a derivative thereof with at least one scavenger to form a treated crude vinyl acetate composition.
    Type: Application
    Filed: October 25, 2011
    Publication date: May 3, 2012
    Applicant: Celanese International Corporation
    Inventors: Jessica Freeman, Qiang Yao, Lauren Moore, Ilias Kotsianis, Victor Johnston, Kevin Hanks