Celanese Presents Predictive Modeling from EVA Polymers at Controlled Release Society’s 41st Annual Meeting & Expo

  Celanese Presents Predictive Modeling from EVA Polymers at Controlled
  Release Society’s 41st Annual Meeting & Expo

       Poster session on display; EVA whitepaper available for download

Business Wire

DALLAS -- July 8, 2014

Celanese Corporation (NYSE: CE), a global technology and specialty materials
company and a global leader in ethylene vinyl acetate (EVA) polymers, invites
attendees of the 41^st Annual Meeting & Exposition of the Controlled Release
Society (CRS) in Chicago, Ill., to attend a poster session entitled
“Predictive Modeling and Validation of Tamoxifen Release from EVA Copolymers.”

“EVA polymers are well-known as a controlled release drug delivery platform
for use with many challenging drug molecules,” said Dr. Bin Zhang, Celanese
senior chemist. “The Celanese VitalDose® brand of EVA copolymers offers full
biocompatibility and is well suited to the design of complex release profiles
and dosage forms using low temperature melt extrusion technology. This study
further demonstrates the versatility of VitalDose® EVA, offering
predictively-modeled dosage of the key oncology drug Tamoxifen.”

As a unique and established controlled release excipient, EVA was evaluated in
the study with selected active pharmaceutical ingredients (APIs). The API
solubility and release profiles were studied using Hansen Solubility Parameter
calculations and experimental in vitro elution. The paper demonstrates a
method that can be used for initial formulation design for controlled drug
delivery from EVA copolymers.

The poster session will be presented Sunday, July 13, 2014, with Dr. Zhang in
attendance from 3:00-4:00 p.m. (Poster #295). The poster will be available at
general poster sessions through July 15.

A whitepaper will also be available at Celanese booth #215 at the CRS
exposition where marketing and technical experts will be available for
questions. The abstract and poster will be available for download at

About Celanese

Celanese Corporation is a global technology leader in the production of
differentiated chemistry solutions and specialty materials used in most major
industries and consumer applications. With sales almost equally divided
between North America, Europe and Asia, the company uses the full breadth of
its global chemistry, technology and business expertise to create value for
customers and the corporation. Celanese partners with customers to solve their
most critical needs while making a positive impact on its communities and the
world. Based in Dallas, Texas, Celanese employs approximately 7,400 employees
worldwide and had 2013 net sales of $6.5 billion. For more information about
Celanese Corporation and its product offerings, visit www.celanese.com or our
blog at www.celaneseblog.com.

All trademarks indicated above are owned by Celanese International Corporation
or its affiliates.

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Celanese Corporation
Investor Relations:
Jon Puckett, +1 972-443-4965
Media - Corporate:
W. Travis Jacobsen, +1 972-443-3750
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