Racehorse injuries generally a mixture of sand, silt and clay. Turf tracks are usually Bermuda grass in warm climates and a mixture of Fescue, Bluegrass and Rye in more temperate climates. Synthetic tracks are generally a mixture of sand, synthetic fibers, rubber and wax. Synthetics are differentiated by brand names such as Polytrack, Tapeta Footings and Cushion Track. North American racing is run on all three types of tracks and provides the best basis for a comparison on how track composition affects injuries and fatalities. The EID was finally able to provide statistics on racing related fatalities in March 2010. The TOBA
Carpet Polymers. DuPont subsequently commercialized a biological process for making 1,3-propanediol from corn syrup, imparting significant renewable content on the corresponding Sorona polyester carpet fibers. These carpet fibers have resiliency comparable to nylon. Acrylic is a synthetic material first created by the Dupont Corporation in 1941 but has gone through various changes since it was first introduced. In the past, acrylic carpet used to fuzz or "pill" easily. This happened when the fibres degraded over time and short strands broke away with contact or friction. Over the years, new types of acrylics have been developed to alleviate some of these problems,