Athletes have a ball with thermoplastics

Air bladders used in balls, helmets, footwear, and other sports equipment need to be tough and durable, and they must maintain their integrity despite being repeatedly kicked, hit, compressed, and flexed. In addition, such equipment must withstand environmental punishment, including temperature extremes and moisture. JPS Elastomerics Corp. feels it has such a material in Stevens Urethane. The thermoplastic urethane (TPU) gives these bladders the necessary tensile and burst strength, along with the elasticity and flexibility to "roll with the punches," says JPS' Sam Everett. Slim and sheet products come in thicknesses from 0.001- to 0.125-inch and widths up to 80 inches. Durometers range from 75 to 95 Shore A, with standard or custom colors and surface textures available. JPS Elastomerics Corp.: Product Code 4226