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Green tires

By Chemical Engineering |

Today, nearly all car tires in Europe are equipped with treads consisting of silica-silane technology. Such so-called green tires are made with the help of bifunctional organic silicon compounds (organosilanes) to chemically couple rubber and silica. Up to now, however, the use of triethoxysilanes in the tire-manufacturing process produced volatile organic compounds (VOCs). Degussa GmbH (Düsseldorf, Germany; edlinks.chemengonline.com/6897-544) has developed a new organosilane, tradenamed VP Si 363, which reduces VOC emissions by 80% during the manufacturing process, so expensive waste-gas treatment is unnecessary, says the firm. Almost all the major tire manufacturers have been sent samples of VP Si 363, and industry “heavyweights” plan to launch products by 2008 at the latest, says Degussa.
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