Abstract: A yarn to produce, in a synthetic grass, filiform formations reproducing natural grass comprising at least one layer of marbled (Moiriert, marbré) aspect given, for example, by the presence of stripes, streaks, bands or granular patterns each with at least marginally different coloration.

Abstract: A flooring, for example for pitches for soccer, five-a-side football, American football, rugby, etc. which includes a polyolefin-based impermeable layer and an elastic mattress laid on top of the impermeable layer which includes a core layer having an agglomerate granular material and an envelope that envelops the core layer. A structure of synthetic-grass covering is laid on top of the elastic mattress and includes a sheetlike substrate with a plurality of filiform formations extending from the substrate to simulate the grassy sward of natural turf, as well as a particulate filling material or infill dispersed between the filiform formations to maintain the filiform formations themselves in a substantially upright condition. The flooring is suited to being laid directly on the previously flattened laying foundation so as to bestow a camber thereon to facilitate draining, such as a pitched camber.

Abstract: A flooring material comprises a core layer of resilient granular agglomerate and a membrane that envelops the aforesaid core layer. In a preferred way, the material is in the form of modules, such as strips or tiles and the membrane forms, on at least one side of the modules, a selvage, which can be applied in a relationship of overlapping with at least one adjacent module.

Abstract: A covering material, such as a flooring, comprises a layer of resilient material, for example rubber-based material, and a plane metal reticular structure, for example made of aluminium, coupled to the layer of resilient material. The metal reticular structure is at least partially emerging at the surface of the layer of resilient material. Provided on the side of the layer of resilient material opposite to the plane metal structure is a balancing layer, for example in the form of a network of fibres, such as glass fibre. Preferentially, the balancing layer has associated to it an outer layer of geotextile material and/or material in the form of felt.

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 tyres having a size of between 0.5 and 7.0 mm.

Abstract: An instrument (“artificial athlete”) for characterizing, from the biomechanical standpoint, a treading surface, such as natural grass cover or synthetic grass flooring, is configured for: dropping a weight from a given height on the surface, producing the conversion of kinetic energy of falling of the weight into deformation energy of the surface, the deformation energy being able to be restored by the surface to the weight, bringing about its return/bouncing back upwards; and detecting at least one parameter representing the process of restitution of the deformation energy by the surface to the weight, the parameter identifying the characteristics of tread of the surface.

Abstract: A particulate filling material (infill) for synthetic-grass structures, comprises granules, which have: a core of recycled-tire material; and a coating layer of a plastic material which encapsulates the core of recycled-tire material.

Abstract: A stratified-structure laminar covering material, which can be used for example as a flooring for sports facilities, comprises an outermost layer, a bottom layer, and an intermediate layer set between the outermost layer and the bottom layer. The aforesaid layers comprise a matrix constituted by a mixture of polyolefin and thermoplastic elastomer, the matrix being substantially identical for all three layers. The matrix of the outermost layer is substantially free from fillers and has a first value of density. The bottom layer contains fillers so as to have a second value of density greater than said first value of density, and the intermediate layer contains fillers so as to have a third value of density intermediate between the first value of density of the outermost layer and the second value of density of the bottom layer.

Abstract: A multi-purpose sports facility is provided with a common base structure comprising a plurality of areas, each of which constitutes a track, pitch or court for practising a respective sports activity. The invention enables people to learn and practise sport, choosing from the activities most widely practised the one that they prefer and is tracks, pitches or courts most suitable for their own physical and mental aptitudes.

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.

Abstract: An instrument (“artificial athlete”) for characterizing, from the biomechanical standpoint, a treading surface, such as natural grass cover or synthetic grass flooring, is configured for: dropping a weight from a given height on the surface, producing the conversion of kinetic energy of falling of the weight into deformation energy of the surface, the deformation energy being able to be restored by the surface to the weight, bringing about its return/bouncing back upwards; and detecting at least one parameter representing the process of restitution of the deformation energy by the surface to the weight, the parameter identifying the characteristics of tread of the surface.

Abstract: A synthetic-grass structure for laying on a subfloor comprises a sheet substrate with a plurality of filiform formations extending upwards from the substrate to simulate natural grass cover and a particulate filling material or infill dispersed between the filiform formations in such a way as to maintain the filiform formations in a substantially upright condition. The infill includes a substantially homogeneous mass of a granular material selected from polyolefin-based materials and vinyl-polymer-based materials, preferably recycled ones.

Abstract: A laminar coating material, for example for use as flooring, comprises: a polyolefin matrix having a first colouring; and a phase of particulate elastomer material, such as vulcanized rubber, dispersed in the polyolefin matrix and comprising particles of at least one second colouring, which contrasts with the colouring of the polyolefin matrix. Preferably, the particulate elastomer material in question is in turn obtained starting from a plurality of intermediate mixes, each comprising a polyolefin matrix having a first colouring, in which there is dispersed a respective particulate phase comprising particles of a respective second colouring. The respective second colouring is different for each intermediate mix and contrasts with the aforesaid first colouring. The intermediate mixes are mixed together so as to form a mixture used for obtaining the final material, preferably by means of granulation, formation of a bed of granules, and isostatic pressing of the bed thus formed.

Abstract: The process aims at providing a covering, such as a flooring, that has an appearance substantially free from phenomena of directionality, starting from a vulcanizable elastomer material, the said process comprising the operations of: feeding an extruder with strips of vulcanizable elastomer material of different color, subjecting said material to extrusion, causing it to pass through a drawplate provided with openings; subjecting to shredding the material obtained by means of drawing so as to obtain, as a result of the action of shredding, a granular material; subjecting said granular material to mixing until it is rendered substantially homogeneous; feeding said granular material rendered homogeneous by mixing to a calender, by direct feeding by gravity of the homogeneous granular material into the gap between the rollers of the calender so as to obtain, as a result of calendering, a strip of vulcanizable elastomer material; and subjecting said material in the form of a strip to vulcanization.

Abstract: A particulate filling material (infill) for synthetic-grass structures, comprises granules, which have: a core of recycled-tire material; and a coating layer of a plastic material which encapsulates the core of recycled-tire material.

Abstract: The process applies to synthetic-grass floorings of the type comprising a sheet substrate with a plurality of filiform formations extending from the substrate to simulate natural-grass cover or turf, the substrate and the filiform formations being made of plastic material, as well as a particulate filling material or infill dispersed between the filiform formations so as to maintain the filiform formations in a substantially erect condition. The process comprises the operations of removing the synthetic-grass flooring from the laid condition and subjecting the sheet substrate and the filiform formations to shredding so as to produce a salvaged particulate material. This salvaged particulate material can then be used as component of the particulate filling material or infill in a synthetic-grass flooring that is to be newly laid.

Abstract: The present invention relates to a flexible sheet having a composite structure for stabilizing coatings, comprising a first layer of fiber material and a second layer of fiber material impregnated by a first and a second impregnating material, respectively, and a body layer set between said first layer and said second layer according to a general sandwich structure, where the body layer consists of a third material. The first and the second impregnating materials and the third material constituting the body layer are polymeric materials presenting a substantial affinity, so that the flexible sheet has a physically heterogeneous and chemically homogeneous structure.

Abstract: A synthetic-grass flooring, for example for sports activities, is made starting from a substrate with a plurality of filiform formations extending upwards from the substrate to simulate natural-grass cover or turf, the filiform formations being provided with respective. proximal ends and distal ends with respect to the substrate. The aforesaid distal ends are subjected to curling to bestow upon said filiform formations a general tree-like conformation. The synthetic-grass flooring in question can be made in the form of the finished product of an industrial manufacturing process comprising a particulate filling material or infill withheld on said substrate by said curly distal ends of said filiform formations.

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.

Abstract: The process applies to synthetic-grass floorings of the type comprising a sheet substrate with a plurality of filiform formations extending from the substrate to simulate natural-grass cover or turf, the substrate and the filiform formations being made of plastic material, as well as a particulate filling material or infill dispersed between the filiform formations so as to maintain the filiform formations in a substantially erect condition. The process comprises the operations of removing the synthetic-grass flooring from the laid condition and subjecting the sheet substrate and the filiform formations to shredding so as to produce a salvaged particulate material. This salvaged particulate material can then be used as component of the particulate filling material or infill in a synthetic-grass flooring that is to be newly laid.