PolyOne Unveils Gravi-TechTM and Therma-TechTM Polymer Technologies at Chinaplas 2008

SHANGHAI, China (April 17, 2008) – PolyOne Corporation (NYSE: POL), a leading global provider of specialized polymer materials, services and solutions, is presenting two new polymer technologies at Chinaplas 2008 April 17-20 in Shanghai. The trade show for the rubber and plastics industries is being held at the New International Expo Centre. PolyOne can be found in Hall W3 Stand D21.

The new PolyOne technologies are Gravi-Tech™ polymer-metal composites, a high-performance alternative to lead and traditional metals in many non-traditional thermoplastic applications, and Therma-Tech™ thermal management compounds, which combine the heat transfer and cooling capabilities of metals with the design freedom, weight reduction and cost advantages of thermoplastics.

“PolyOne’s Specialty Engineered Materials business supplies high-performance polymer compounds for challenging applications,” said Soon Cher Seah, general manager, Asia Engineered Materials. “We focus on offering our customers innovative compound solutions that excel in performance and value. Gravi-Tech and Therma-Tech offer designers more choice and freedom.”

With a variety of metallic fillers, Gravi-Tech high-density compounds mimic the look and feel of lead and other metals, yet offer the design flexibility and processing ease of thermoplastics. Among the benefits offered by these polymer-metal composites are:

• Customizable densities up to 11 gm/cm3

• High-yield strength

• Thin-wall injection capability

• FDA-compliant grades suitable for food, drug and cosmetics packaging

PolyOne’s Therma-Tech thermal management compounds provide the benefits of proprietary conductive additive technologies and the performance of select engineering thermoplastic resins. Therma-Tech compounds have been shown to improve thermal conductivity 50 to 100 times above the level of conventional plastics, and can be used in a wide range of thermal management applications.

Primary benefits of Therma-Tech compounds compared with fabricated metal include:

•Low coefficient of thermal expansion

•Reduced weight

•Lower cost compared with machined components and lower shipping cost

•Inherent corrosion/oxidation resistance

•Design flexibility, more complex shapes

•Part consolidation, reduced assembly costs

Gravi-Tech and Therma-Tech are the newest members of an engineered compounds portfolio that PolyOne began introducing in China in 1998. This portfolio includes:

•MaxxamTM polyolefin compounds

•NymaxTM and BergamidTM polyamide compounds

•EdgetekTM engineered thermoplastic compounds

•BergadurTM polyester compounds

•LubriOneTM wear-resistant compounds

•Stat-TechTM static dissipative and conductive compounds

For more information about Chinaplas 2008, visit www.chinaplasonline.com.

Reader enquiries

PolyOne Corporation
Cleveland
Ohio
United States
www.polyone.com

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About PolyOne

PolyOne Corporation, with annual revenues of more than $2.7 billion, is a leading global provider of specialized polymer materials, services and solutions. Headquartered outside of Cleveland, Ohio U.S.A., PolyOne has operations around the world. See www.polyone.com for additional information on PolyOne.