Bayer advances the industrial coating cure … enhancing performance with thermally cured polyurethane dispersions

New technologies help meet industrial coating criteria in diverse markets

Indianapolis, May 9, 2012 — Industrial coatings built on one-component, thermally cured polyurethane dispersions (PUDs) are preferred in demanding applications, because the coatings' unique chemistry imparts superior impact resistance, solvent and water resistance, and appearance. These properties make the technology attractive in industries that require stable and durable paints, like automotive, construction, appliances and agriculture equipment.

Dr. Raymond Stewart, senior scientist, Coatings, Adhesives & Specialties business development, Bayer MaterialScience LLC, recently discussed the opportunities and benefits associated with coatings formulated with PUDs used in continuous, high-speed OEM applications during his presentation, "1K Thermally Cured PUDs for Industrial Coatings Applications," at the American Coatings Show (ACS), currently taking place in Indianapolis.

During his presentation, Dr. Stewart explained that the various combinations of a polyol, polyisocyanate and blocking agent determine the functionality of this technology. Various combinations of polyol and polyisocyanate control the final film properties, and the choice of blocking agent controls the cure temperature.

Dr. Stewart presented the benefits of the latest advances in polyol/blocked polyisocyanate chemistries, and reviewed the curing chemistry and unique polymer design for both polyol and blocked polyisocyanate components required for desired performance characteristics. "The coating products based on this PUD technology require resistance to mechanical wear, weathering, solvents and chemicals; thus the chemical makeup of this technology is extremely attractive," said Dr. Stewart.

Attendees are invited to stop by Bayer's booth, #301, during the show to learn more about Bayer's coatings technologies.

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 14,800 employees at 30 production sites around the world and 2011 sales of 10.8 billion euros. Bayer MaterialScience's 2011 sales in North America were $2.9 billion. 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:

Thomas Erdner, Phone: 412-777-5200
Email: thomas.erdner@bayer.com

For more information about Bayer MaterialScience LLC's coatings technology, call 412-777-3983 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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