SYNTHETIC TURF, OF SPECIFIC COMPOSITION, OBTAINED THROUGH A SAND-BLASTING PROCESS AND CUSHIONED WITH A BASE LAYER OF POLYPROPYLENE FOR SHOCK ABSORPTION, AND A SAND-BLASTING TREATMENT PROCESS FOR SAID SYNTHETIC TURF

摘要

A synthetic turf surface for golf courses, tennis courts and other grass-surfaced game playing fields is formed of a synthetic grass carpet having a flexible base sheet (14) with closely spaced-apart upright, blade-like strands (12) of plastic material forming a dense grass-like surface. The carpet is supported upon a cushioning underpad (18) which is formed of a thick, molded sheet of open cell, expanded bead polypropylene. The resiliently compressible polypropylene underpad combined with the synthetic grass carpet closely simulates the feel of a natural grass covered playing surface.