Patent ID: 7189445

Claim:
A synthetic turf sports field comprising: a geotextile fabric layer laid onto a compacted subgrade; a coarse aggregate layer placed onto the geotextile fabric layer; a fine aggregate layer placed onto the coarse aggregate layer; at least one strip of a synthetic grass material comprising a plurality of layers of a backing material; an optional polypropylene mesh backing material coupled to an uppermost layer of said plurality of layers of said backing material; a plurality of fibrillated synthetic grass strands tufted through said plurality of layers of said backing material and said optional polypropylene mesh backing material such that said ends of said plurality of fibrillated strands extend above said optional polypropylene mesh backing layer at a first height; and a secondary coating coated to a bottommost one of said plurality of layers of said backing material such that a tufted portion of said plurality of fibrillated synthetic grass strands is contained between said secondary coating and said bottommost one of said plurality of layers of said backing material; and an infill layer placed onto said optional polypropylene mesh backing material or said uppermost one of said plurality of layers of said backing material, wherein the thickness of said infill layer is less than said first height, said infill layer comprising a plurality of cryogenically or ambiently ground rubber particles and further comprising a plurality of diatomaceous earth particles.