Synthetic grass structure
AssigneeMondo S.p.A., Italian Nationality
InventorFernando Stroppiana
Life of this patent
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Abstract
A synthetic grass structure comprises a sheet substrate with a plurality of filiform formations extending from the substrate so as to simulate natural grass cover and a particulate filling material or infill consisting of a substantially homogeneous mass of a granular plastic material dispersed between the filiform formations so as to keep them in a substantially upright condition. The infill forms a layer of thickness not greater than 40 millimeters, has a grain size smaller than 5 millimeters, and consists of plastic material with a value of elastic return such that the structure has a KA value of 35-50, which enables its use for making athletics tracks.
Claims15
A synthetic grass structure comprising:
- a sheet substrate with a plurality of filiform formations extending from the substrate to simulate natural grass cover;
- and
- a particulate infill consisting of a substantially homogeneous mass of granular plastic material dispersed between said filiform formations so as to keep the filiform formations themselves in a substantially upright condition, wherein said particular filling material or infill:
- forms a layer of thickness not greater than 40 millimeters;
- has a grain size smaller than 5 millimeters;
- and
- consists of material with a value of elastic return such that said structure has a kraftabbau value in the range of 35-50.
Dependencies are inferred from the claim text.