Keep germs at bay the antimicrobial way

Bayer MaterialScience LLC antimicrobial plastic grades help inhibit bacterial growth

Anaheim, Calif., February 15, 2012 — Healthcare-associated infections are a rising problem in the United States, and hospitals welcome innovative technology that can help to keep infections under control. Better preventative measures and use of antimicrobial products can help reduce the occurrence of healthcare-associated infections. With three antimicrobial polycarbonate grades and one antimicrobial polycarbonate/acrylonitrile butadiene styrene (PC/ABS) grade, Bayer's portfolio of medical antimicrobial plastics can help manufacturers improve protection against bacteria growth in medical equipment and devices compared with untreated polymers.

"Manufacturers turn to Bayer's antimicrobial plastics portfolio for applications in drug delivery, surgical instruments and IV access systems," said Bruce Fine, market segment leader, Medical and Consumer Products - Polycarbonates, Bayer MaterialScience LLC. He continued, "These antimicrobial plastics work to help prevent bacteria or fungi from degrading the article. While each grade has its own unique attributes, all provide a good balance of mechanical properties and processability."

The three antimicrobial grades of Makrolon® polycarbonate – AM1825, AM24281 and AM2520 – as well as Bayblend® PC/ABS AM 120 FR, are all produced in pellet form and are processed primarily by injection molding.

Representatives from Bayer will be on hand to discuss these materials at MD&M West, February 14-16, in Anaheim, Calif. Visitors are encouraged to stop by Bayer's booth, #2021. Here's an overview of Bayer's antimicrobial plastics portfolio.

1 formerly identified as DP1-1869

Makrolon AM1825: Makrolon AM1825 polycarbonate is a lipid-resistant, radiation-stabilized and high-viscosity thermoplastic. It is ideal for translucent medical device applications where its proprietary radiation-stabilization technology reduces discoloration associated with sterilizing doses of e-beam or gamma radiation. Certain color formulations meet the requirements of USP Class VI and the FDA-modified ISO 10993, Part 1 "Biological Evaluation of Medical Devices" tests with human tissue contact time of 30 days or less.

Makrolon AM2428: This linear, low-viscosity, high-performance plastic contains an internal mold release agent and was previously identified as DP1-1869. Certain color formulations of Makrolon AM2428 polycarbonate meet requirements of USP Class VI and the FDA-modified ISO 10993, Part 1 "Biological Evaluation of Medical Devices" tests with human tissue contact time of 30 days or less.

Makrolon AM2520: This grade of antimicrobial polycarbonate provides a good balance of mechanical strength, impact resistance and processibility and is also radiation stabilized. Certain color formulations meet the requirements of USP Class VI and the FDA-modified ISO 10993, Part 1 "Biological Evaluation of Medical Devices" test with human tissue contact time of 30 days or less.

Bayblend AM 120 FR: The antimicrobial PC/ABS blend in Bayer's portfolio offers flame-retardant capabilities and a naturally opaque color.

About Bayer MaterialScience LLC:

Bayer MaterialScience LLC is one of the leading producers of polymers and high-performance plastics in North America and is part of the global Bayer MaterialScience business with approximately 14,700 employees at 30 production sites around the world and 2010 sales of 10.2 billion euros. The company manufactures high-tech polymer materials and develops innovative solutions for products used in many areas of daily life. The main segments served are the automotive, electrical and electronics, construction, medical, and sports and leisure industries. Sustainability is central to Bayer MaterialScience LLC's business and is based around the key areas of innovation, product stewardship, excellence in corporate management, social responsibility and respect for the environment.

Contact:

Sean Kelly, Phone: 412-777-5200
E-mail: sean.kelly@bayer.com

For more information about Bayer MaterialScience LLC's medical polycarbonates technology, call 1-800-662-2927, email medicalinfo@bayer.com or visit www.bmsnafta.com.

Forward-Looking Statements

This news release may contain forward-looking statements based on current assumptions and forecasts made by Bayer Group or subgroup management. Various known and unknown risks, uncertainties and other factors could lead to material differences between the actual future results, financial situation, development or performance of the company and the estimates given here. These factors include those discussed in Bayer's public reports which are available on the Bayer website at www.bayer.com. The company assumes no liability whatsoever to update these forward-looking statements or to conform them to future events or developments.

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