News Release

Bayer MaterialScience AG
Communications
51368 Leverkusen
Germany
www.press.bayerbms.com
News Release
Innovative materials for ambitious project:
Bayer deepens involvement in futuristic Solar Impulse aircraft
Takeoff for fuel-less around-the-world flight scheduled for early 2015
Payerne, October 2, 2012 – Bayer MaterialScience is expanding its contribution to the
Solar Impulse project – an unprecedented around-the-world flight powered solely by solar
energy scheduled for take off in 2015. The company specializes in high-performance
materials and is responsible for the complete design of the cockpit shell of the second,
improved model. Among its contributions will be an innovative, extremely highperformance insulating material. Solar Impulse and Bayer MaterialScience announced at
a joint news conference in Payerne, Switzerland, that the new solar aircraft is expected to
be completed in late 2013 and will conduct test flights the following year.
The first model will remain available for additional missions. “We are studying several
possibilities and it could perhaps be making its first flights around the United States next
year,” announced Bertrand Piccard, the initiator and Chairman of the Swiss project that
proves clean technologies are fully reliable allowing to drastically reduce energy
consumption. So far the solar aircraft has completed flights in Europe and most recently
to North Africa, in each case with materials from Bayer MaterialScience on board.
System leader for the cockpit
“We are now deepening our involvement as we go from materials supplier to system
leader for the new cockpit,” said Patrick Thomas, Chief Executive Officer of Bayer
MaterialScience. “The Bayer Cross will be displayed on the aircraft in the future as a
visible symbol of our commitment to this excellent partnership.”
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Bayer MaterialScience is contributing a variety of products and solutions to ensure that
the second, larger model of the futuristic aircraft will be lightweight, yet retain its rigidity.
For example, because the cockpit cowl will be hinged for the first time, a section of it is
being supported with a carbon fiber-reinforced plastic.
In addition, the innovative polyurethane foam Baytherm Microcell® will be used as
insulation in places. It is being developed together with the chemical company Solvay for
use in the new plane. The material offers significantly greater insulating performance than
the current standard because Bayer researchers were able to shrink the pores in the foam
by an additional 40 percent. Highly efficient insulation is particularly important for the
aircraft because it must withstand temperature fluctuations between minus 50 degrees
Celsius at night and plus 50 degrees during the day.
Carbon nanotubes on board
“The significantly larger size of the new cockpit shell and Solar Impulse’s tight weight
budget meant that we had to further optimize the weight through design measures and
targeted choice of materials,” explained Martin Kreuter, Solar Impulse project manager at
Bayer MaterialScience. Another innovation announced by Kreuter was the use of
Baytubes® carbon nanotubes in carbon fiber-reinforced structural components in order to
reach more savings both regarding material and weight.
“This will allow us to enlarge the wings of the new aircraft and increase the number of
solar cells mounted on them,” Kreuter said. The current model, which has the wingspan of
an Airbus and weighs as much as a mid-size car, has 12,000 solar cells on its wings.
Solar Impulse CEO and cofounder André Borschberg says that work on the aircraft is
already far advanced. “80 percent of the design phase and 50 percent of the construction
phase have been completed.”
The first manned around-the-world flight in a fuel-less aircraft is scheduled for take off in
early 2015. The flight is expected to take 20 flight-days, with five to six needed just to
cross the Pacific and two to three for the Atlantic crossing, according to Borschberg.
Including the necessary breaks, the solar-powered aircraft’s journey from west to east will
take a total of three to four months.
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About Bayer MaterialScience:
With 2011 sales of EUR 10.8 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 the sports and leisure industries. At the end of 2011, Bayer
MaterialScience had 30 production sites and employed approximately 14,800 people
around the globe. Bayer MaterialScience is a Bayer Group company.
About Solar Impulse
Solar Impulse HB-SIA is the first aircraft that can fly day and night without fuel or polluting
emissions. It demonstrates the huge potential of new technologies in terms of energy
reduction and the production of renewable energy. This revolutionary carbon fibre aircraft,
that has the wingspan of an Airbus A340 (63.4m) and the weight of an average family car
(1,600kg), is the result of seven intense years of work, calculations, simulations and tests
by a team of 70 people and 80 partners. A plane this light and of this size has never been
built before. The 12,000 solar cells built into the wing provide four 10HP electric motors
with renewable energy. By day the solar cells recharge the 400kg lithium batteries which
means the plane can fly at night. The Solar Impulse project is supported by Main
Partners: Solvay, Omega, Deutsche Bank and Schindler; Official Partners: Bayer
MaterialScience, Swiss Re Corporate Solutions and Altran; Official Scientific Advisor:
EPFL (the Ecole Polytechnique Federale de Lausanne) and Aeronautical Consultant:
Dassault-Aviation.
This news release is available for download from the Bayer MaterialScience press server
at www.press.bayerbms.com. Photos are available there for download as well. Please
mind the source of the pictures.
Contact:
Stefan Paul Mechnig, Tel. +49 214 30-36352
E-Mail: [email protected]
Find more information at www.materialscience.bayer.com.
stm
(2012-0436E)
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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.
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