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November 13-15, 2005
Beijing, China

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December 13-15, 2005
Toronto, Ontario, Canada
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February 5-8, 200
San Diego, California
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February 20-22, 200
Las Vegas, Nevada, USA
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June 20-23, 200
Milwaukee, Wisconsin, USA

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Posted on  

March 1, 2001

Goodyear Serves Up Tires Made From Corn

A representative of Goodyear shows the Goodyear GT3, a new tire manufactured by BioTred technology, which partly replaces silica and carbon black with a new material derived from corn.

Brace yourself for corny tire jokes and puns (sample: it's "a-maize-ing"). Goodyear has introduced the world's first tire with a compound derived from corn at Europe's annual major auto show here.

The new Goodyear GT3 is the first tire on the market using a new starch- based filler material called BioTRED, which uses common corn as its "feedstock."

A patented innovation developed at the company's Luxembourg technical center, BioTRED partially replaces more conventional carbon black and silica. "This presents important environmental advantages, including remarkably lower rolling resistance and as a result, less fuel consumption, noise reduction, lower carbon dioxide emissions and less energy consumption in the production processes," said Filomeno Corvasce, the Goodyear engineer who developed it.

"Moreover," Corvasce said, "BioTRED uses renewable compounds versus non-renewable sources. The starch used in the production of BioTRED is derived from corn, in a process similar to the one used in food industries. Then it is treated to obtain micro-droplets of starch.

In a next step, these micro droplets are treated, transforming them into a biopolymeric filler. The end product has physical properties that differ substantially from those of traditional fillers. The lower specific gravity of this new material also reduces tire weight and rolling inertia, thus further improving fuel efficiency.

The tire is being introduced in Europe first, where Ford will use it as original equipment on a new fuel-stingy version of its Fiesta. It then likely will be made available in other regions. 


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