Solar Impulse aircraft successfully completes its first night flight

Bayer MaterialScience contributes innovative materials to long-range solar-powered aircraft

Leverkusen, July 9, 2010 – The Solar Impulse aircraft, which is powered only by solar energy, has triumphantly completed its first night flight. The ultralight aircraft was airborne for a total of 26 hours – from 7 am on July 7 until 9 am the following day (Central European Time) – before finally landing as planned at Payerne airbase in Switzerland. It is now officially the first manned aircraft capable of flying day and night without fuel, powered entirely by solar energy.

“We extend our sincere congratulations to Bertrand Piccard and André Borschberg of Solar Impulse, and are delighted to be part of this terrific achievement,” says Patrick Thomas, CEO of Bayer MaterialScience. “This is a further milestone on the way to the first solar-powered circumnavigation of the globe. We are proud to be an official partner of the Solar Impulse project and to make a further positive contribution to climate-friendly mobility with our innovative materials.”

Bayer MaterialScience is supporting the Swiss-based Solar Impulse SA with technical expertise, high-tech polymer materials and energy-saving lightweight products. Among the materials incorporated in the aircraft on its successful inaugural flight was a very lightweight polyurethane foam from Puren GmbH. It is based on raw materials from the Leverkusen company and is used in the cockpit cladding, the engine cowling and the wings. Products from Bayer MaterialScience also feature in the cockpit windows, which consist of thin but very strong Makrofol® polycarbonate film.

The next solar-powered aircraft will contain a significantly greater proportion of Bayer products. The company is working flat out on the development of further ultra-lightweight materials. Baytubes® carbon nanotubes (CNTs) from Bayer MaterialScience, for example, could improve the strength of structural components while keeping their weight to a minimum. In 2013 a second prototype is scheduled to fly right round the world in five stages, each lasting five days, traveling at an average speed of 70 km/h.

About Bayer MaterialScience:
With 2009 sales of EUR 7.5 billion, Bayer MaterialScience is among the world’s largest polymer companies. Business activities are focused on the manufacture of high-tech polymer materials and the development of innovative solutions for products used in many areas of daily life. The main segments served are the automotive, electrical and electronics, construction and sports and leisure industries. Bayer MaterialScience has 30 production sites around the globe and employed approximately 14,300 people at the end of 2009. Bayer MaterialScience is a Bayer Group company.


Find more information at www.bayermaterialscience.com and http://www.solarimpulse.com/nightFlights/blog/blog_night.php?lang=de&order=blogDate.


Forward-Looking Statements
This 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.