A new approach to recycling discarded rubber auto and truck tires offers significant improvements in material properties and raw-material cost savings in the production of polyurethane parts, according to a recent study funded by the California Integrated Waste Management Board. The study, performed by Champion Recycling Inc. of Apple Valley, CA, shows that "finely ground rubber can be used successfully as a cost-effective filler" in polyurethane bicycle tires, industrial wheels, shoe outsoles and other products.
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