Synthetic grass structure
AssigneeMondo S.p.A.
InventorFernando Stroppiana
Life of this patent
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Abstract
An elastic underlayer for floorings, for instance, floorings for sports facilities such as synthetic-grass coverings, comprises a first laminar structure and a second laminar structure that enclose between them pouches filled with granular elastic material. The structures in question comprise a layer of non-woven fabric coupled with a polyolefin layer. The polyolefin layers enclose between them the pouches, which preferably have a parallelepiped shape with a square base, with sides having a length of 20-60 mm, typically 45 mm, and a height of between 20 and 40 mm, typically 30 mm. The pouches are filled with granular elastic material, such as granules of recycled tires having a size of between 0.5 and 7.0 mm.
Claims30
A synthetic grass structure comprising:
- a first laminar structure and a second laminar structure that encapsulate between them pouches, said pouches completely filled with granular elastic material;
- said first laminar structure and second laminar structure each comprising a layer of non-woven fabric coupled to a polyolefin layer, the polyolefin layers of said first laminar structure and second laminar structure encapsulating between them said pouches, the polyolefin layers being sealed together.
A process for manufacturing an underlayer, the process comprising:
- providing a first laminar structure and a second laminar structure that enclose between them pouches, the pouches completely filled with granular elastic material;
- and
- the first laminar structure and second laminar structure each comprising a layer of non-woven fabric coupled to a polyolefin layer, the polyolefin layers of the first laminar structure and second laminar structure encapsulating between them the pouches, the polyolefin layers being sealed together.
Dependencies are inferred from the claim text.