Press release
May 12, 2010

Evonik Cyro Introduces Molding Compound with Enhanced Optical Properties

See Us At LightFair International 2010 – Booth #2875

Evonik Cyro, LLC, (booth #2875) introduces ACRYMID® TT70, a high grade poly(methyl methacrylimide) (PMMI) that combines the inherent advantages of poly(n-methyl methacrylate) (PMMA) with enhanced optical properties to deliver distinct performance advantages in high-temperature lighting designs.

Unveiled at LightFair International 2010, ACRYMID® TT70 offers high light transmission, is non-yellowing and has low haze, making it well suited for high efficiency LED-based lighting applications including architectural, automotive, interior design, store fixture and signage.

ACRYMID® TT70 molding compound is developed from a unique Evonik chemistry that allows performance, superior to alternative acrylics, polycarbonates (PC) and heat-resistant PC variants. Its Vicat temperature (a standardized test used to identify the softening point of a thermoplastic material) of 170 °C means that it is perfect for specialty lenses that require the ability to maintain their shape in high-heat environments.

One key feature of the product is that it has low heat age discoloration. ACRYMID® TT70 maintains its high light transmission of 91%, even after storage for 40 days at 150 °C. It also maintains its brilliant appearance and does not exhibit any undesired light diffusion due to material haze after exposure to such conditions. ACRYMID® TT70 has excellent UV and weather resistance as well as high-surface hardness.

ACRYMID® TT70 is well suited for optical light guides, as the high-quality optical properties allow longer lengths to be utilized with limited loss of light transmission. It can also be used for lens systems, light-guiding elements for parking lights or dipped headlights and any other lighting design incorporating LEDs and Xenon lamps.

ACRYMID® TT70 molding compound can be processed on injection molding machines with standard 3-zone general purpose screws for thermoplastics. It is supplied in pellets of uniform size in aluminum-laminated 25 kg polyethylene bags.

For more information, contact: Evonik Cyro LLC, 379 Interpace Parkway, Parsippany, NJ 07054, USA; Tel: 800-631-5384; Email:; or visit, or


Company Information

Evonik Cyro LLC is an Evonik Degussa Corporation group company. Headquartered in Parsippany, NJ, Evonik Cyro is a leading manufacturer of acrylic sheet and molding compounds, and bulk and performance monomers. Cyro manufactures and markets its acrylic sheet and molding compounds under the ACRYLITE® and ACRYMID® trade names in the Americas. These same products are manufactured and marketed under the PLEXIGLAS® and Pleximid® trade names on the European, Asian, African and Australian continents.

About Evonik

Evonik Industries is the creative industrial group from Germany. In our core business of specialty chemicals, we are a global leader. In addition, Evonik is an expert in power generation from hard coal and renewable energies, and one of the largest private residential real estate companies in Germany. Our company’s performance is shaped by creativity, specialization, continuous self-renewal, and reliability.

Evonik is active in over 100 countries around the world. In its fiscal year 2009 about 39,000 employees generated sales of about €13.1 billion and an operating profit (EBITDA) of about €2.0 billion.


In so far as forecasts or expectations are expressed in this press release or where our statements concern the future, these forecasts, expectations or statements may involve known or unknown risks and uncertainties. Actual results or developments may vary, depending on changes in the operating environment. Neither Evonik Industries AG nor its group companies assume an obligation to update the forecasts, expectations or statements contained in this release.