| Textile Coating from Dow Corning Helps Improve Performance in
Side Curtain Airbags
Silicone solution improves inflation times, rollover
protection
MIDLAND, Mich.,
July 20 /PRNewswire-FirstCall/ -- A new textile coating from Dow
Corning Corporation could assist in saving lives of side-impact
crash victims and ease adoption of proposed safety regulations by
vehicle manufacturers.
The high-performance,
cost-effective coating allows side curtain airbags to remain inflated
longer to improve protection in rollovers, and also allows the airbags
to be folded into a narrow area above a vehicle's door to make design
and assembly easier. Side curtain airbags typically cover the entire
upper part of a vehicle's front and back side windows, cushioning
the heads of passengers seated where the side impact takes place.
"Dow Corning
provides the technology that helps make these life-saving devices
cost-effective for airbag manufacturers and automobile manufacturers
and more readily available to the public," said Sheryl Petroff,
global market segment leader for Dow Corning Industrial Textile
Coatings.
Although industry
experts say that airbags with head protection can reduce death rates
by 45 percent among drivers of cars struck on the driver side, only
24 percent of 2004 model year cars offered side airbags as standard
and another 17 percent as an option, according to the Insurance
Institute for Highway Safety, an insurance industry group that conducts
research and crash tests.
In May, the
National Highway Traffic Safety Administration proposed new safety
standards that vehicles will have to meet in side-impact crashes.
Automakers can adopt any technology to meet the requirement, but
it is expected they will use side curtain air bags. Automakers have
agreed to include side air bags as standard equipment in at least
50 percent of their models by the 2007 model year and 100 percent
by 2009.
"The more
consumers learn about airbag systems, the more they realize that
these are safety devices that can save lives and reduce injuries,"
said Peter Goelz, former managing director of the National Transportation
Security Board.
Commonly stored
in the headliner above the doors, side curtain airbags can inflate
in less than 15 milliseconds -- four times faster than the blink
of an eye. Unlike dashboard airbags, which are designed to inflate
and deflate quickly during head-on collisions, studies have shown
that side curtain airbags need to retain air pressure for several
seconds during a rollover accident to provide a life-saving, head-cushioning
function. The airbag must then safely deflate to allow for post-crash
access and exit.
In response
to these different performance needs, Dow Corning worked closely
with a leading airbag manufacturer to develop a silicon modified
organic coating that controls inflation/deflation timing and dependability,
retains flexibility and resilience over wide temperature and humidity
ranges over extended periods of time, and has a high resistance
to gasses. In addition, the thinness of the coating ensures that
the airbag cushion can be easily folded and complies with vehicle
manufacturers' specifications.
"Liquid
silicone rubber is often used to coat airbags, but our new technology
requires less coating to hold the air pressure of the bag, giving
it the foldability advantage," said Petroff.
Dow Corning
has contributed to the ongoing development of frontal air bags as
well with silicone coatings that enable even deployment while providing
protection to the fabric from the heat and force of inflation.
In addition
to coatings, Dow Corning offers a wide range of silicon-based solutions
for airbag and transportation applications including sealing, bonding
and seam-sealing; surface property enhancement; material coupling
and adhesion promotion; and pigmentation. For more information about
Dow Corning products and solutions for airbag applications, visit
http://www.dowcorning.com/content/textiles/texind/ .
Dow Corning
(http://www.dowcorning.com
) provides performance-enhancing solutions to serve the diverse
needs of more than 25,000 customers worldwide. A global leader in
silicon-based technology and innovation, offering more than 7,000
products and services. Dow Corning is equally owned by The Dow Chemical
Company (NYSE: DOW - News) and Corning, Incorporated (NYSE: GLW
- News). More than half of Dow Corning's annual sales are outside
the United States.
Source:
Dow Corning Corporation
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