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

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 www.celanese.com.

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.

Forward-Looking Statements

This release may contain “forward-looking statements,” which include information concerning the company's plans, products, objectives, goals, strategies, future revenues or performance, capital expenditures, and other information that is not historical information. When used in this release, the words “expects,” “anticipates,” “projects,” “plans,” “intends,” “believes,” “may,” “can,” “could,” “would,” “might,” “will” and variations of such words or similar expressions are intended to identify forward-looking statements. All forward-looking statements are based upon current expectations and beliefs and various assumptions. There can be no assurance that the company or its customers will realize these benefits or that these beliefs will prove correct. There are a number of risks and uncertainties that could cause actual results to differ materially from the results expressed or implied in the forward-looking statements contained in this release. These risks and uncertainties include, among other things: changes in general economic, business, political and regulatory conditions; changes in the price and availability of raw materials; the introduction of competing products by other companies; market acceptance of our products; changes in the degree of intellectual property and other legal protection afforded to our products and processes; the impact of technological developments and competition; adoption of new or different industry or regulatory standards; unanticipated operational or commercial difficulties, including failure of facilities or processes or products to be designed or constructed, or to operate, in accordance with specifications or expectations; the ability to achieve and maintain plant utilization; ability of third parties, including our commercial partners, suppliers or others, to comply with their commitments to us; increased costs under existing or future environmental regulations, including those relating to climate change; potential liability resulting from pending or future litigation, or from changes in the laws, regulations or policies of governments or other governmental activities in the countries in which we operate; and various other factors discussed from time to time in the company's filings with the Securities and Exchange Commission. Any forward-looking statement speaks only as of the date on which it is made, and the company undertakes no obligation to update any forward-looking statements to reflect events or circumstances after the date on which it is made or to reflect the occurrence of anticipated or unanticipated events or circumstances.

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