June 26, 2006

DuPont announces chip-resistant coatings made from corn

Wilmington, Delaware – A new generation of tough, chip-resistant DuPont automotive refinish products, reinforced with newly-invented bio-based polymers, could be available for use in auto collision repair centres by 2008, the company says. The new polymers, known as 1,3 propanediol (Bio-PDO) are currently used to make fibers for clothing and carpet, and are made by a fermentation process that uses corn sugar.

“This is truly revolutionary science,” says John McCool, vice president and general manager, DuPont Automotive Refinish Systems. “The inherent performance and environmental benefits of these new sealers, primers and clear coats make them incomparable to anything on the market today.”

The new coatings will be made using renewable-sourced intermediate ingredients that are biodegradable and virtually non-toxic; the company says the polymer content of the new finishes will enable them to last longer and better resist stone impact. DuPont received the U.S. Environmental Protection Agency’s Presidential Green Chemistry Award in 2003 for this technology; the Bio-PDO process consumes 40 per cent less energy than its petrochemical counterpart.

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