Patents by Inventor Ilias Kotsianis

Ilias Kotsianis 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 acrylic acids and acrylates
    Patent number: 8658823
    Abstract: In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product and an alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream to form an alkylenating agent stream and an intermediate product stream. The alkylenating agent stream comprises at least 1 wt % alkylenating agent and the intermediate product stream comprises acrylate product.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: February 25, 2014
    Assignee: Celanese International Corporation
    Inventors: Craig Peterson, Josefina Chapman, Ilias Kotsianis, Sean Mueller, Dick Nagaki, Tianshu Pan
  • PROCESSES FOR PRODUCING ACRYLIC ACIDS AND ACRYLATES
    Publication number: 20130085294
    Abstract: In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product and an alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream to form an alkylenating agent stream and an intermediate product stream. The alkylenating agent stream comprises at least 1 wt % alkylenating agent and the intermediate product stream comprises acrylate product.
    Type: Application
    Filed: October 3, 2011
    Publication date: April 4, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: Craig Peterson, Josefina Chapman, Ilias Kotsianis, Sean Mueller, Dick Nagaki, Tianshu Pan
  • 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