Fantastic plasticsPhil Lepage learns how a South Dakota company is using soybean-derived products to decrease the nationÔÇÖs dependence on petroleum. Perhaps if The Graduate were being filmed today, the one word of advice given to Benjamin Braddock might not have been ÔÇ£PlasticsÔÇØ but rather the two words, ÔÇ£Bio-renewable polyols.ÔÇØPolyols are the raw material used to make polyurethane, and Urethane Soy Systems Company of Volga, South Dakota, specializes in researching and marketing the use of soy-based polyols.