Poly-Turf was a brand of artificial turf in the early 1970s, manufactured by American Biltrite of Wellesley, Massachusetts. It was the first specifically designed for American football, with a patented layered structure which included a "shock pad" between the artificial grass and the asphalt sub-surface.[1] It used polypropylene for its artificial grass blades, rather than the nylon used in AstroTurf and 3M's Tartan Turf.[2][3][4]
- ^ U.S. Patent number 3661687, inventors Arthur F. Spinney and Lawrence J. Warnalis
- ^ Underwood, John (November 15, 1971). "New Slant on the Mod Sod". Sports Illustrated. p. 32. Retrieved October 29, 2014.
- ^ "Mod-sod revolution felt". Tuscaloosa News. Associated Press. June 30, 1970. p. 8.
- ^ Johnson, William Oscar (August 12, 1985). "The tyranny of phony fields". Sports Illustrated. p. 34. Retrieved October 29, 2014.
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