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.

Abstract: A substrate for floorings, such as synthetic grass turf includes: a pad made of a first heat-meltable material, a stabilizing mesh made of a second heat-meltable material, and a connection layer set between said pad and the mesh. The connection layer includes a third heat-meltable material with a melting point lower than the melting point of the first and of the second heat-meltable materials. The connection layer is a discontinuous layer with a granular structure, so that the substrate is permeable to liquids in order to enable, for example, draining-off of rainwater.

Abstract: A flooring, preferentially designed to be used for laying running tracks, includes a treading layer constituted by an elastomer mass and a supporting layer also constituted by an elastomer mass. The supporting layer has, on the side opposite to the treading layer, an array of cavities delimited by ribbings constituting a mesh of uniform ribbings. The cavities are cavities having an elongated shape in the direction of running on the flooring. The cavities occupy a volume equal to at least 28%, and preferentially at least 30%, of the volume of the supporting layer.

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 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 synthetic-grass covering, usable, for example, for making artificial pitches for sports activities, consisting of a substrate made of sheet material and filiform formations, implanted in the sheet material so as to present a looped part that extends up against one of the surfaces of the sheet material and lateral branches that extend in order to simulate the grassy sward of natural turf from the opposite surface of the sheet material. The substrate made of sheet material comprises a pad with coupled thereto a layer made of heat-meltable material, and the filiform formations are also made of heat-meltable material, with the aforesaid looped parts that extend in an area corresponding to the layer made of heat-meltable material, heat-welded to the aforesaid 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 practicing a respective sports activity. The invention enables people to learn and practice sport, choosing from the activities most widely practiced the one that they prefer and is tracks, pitches or courts most suitable for their own physical and mental aptitudes.

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, preferentially designed to be used for laying running tracks, includes a treading layer constituted by an elastomer mass and a supporting layer also constituted by an elastomer mass. The supporting layer has, on the side opposite to the treading layer, an array of cavities delimited by ribbings constituting a mesh of uniform ribbings. The cavities are cavities having an elongated shape in the direction of running on the flooring. The cavities occupy a volume equal to at least 28%, and preferentially at least 30%, of the volume of the supporting layer.

Abstract: A substrate for floorings, such as synthetic grass turf includes: a pad made of a first heat-meltable material, a stabilizing mesh made of a second heat-meltable material, and a connection layer set between said pad and the mesh. The connection layer includes a third heat-meltable material with a melting point lower than the melting point of the first and of the second heat-meltable materials. The connection layer is a discontinuous layer with a granular structure, so that the substrate is permeable to liquids in order to enable, for example, draining-off of rainwater.

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: A yarn for forming filiform formations of a synthetic-grass covering reproducing the grassy sward of natural turf comprises filiform segments set alongside one another and connected together by thin breakable connection portions, in which the filiform segments have thickened end parts. Preferably, the yarn is obtained by longitudinal stretching, starting from a length constituted by a strip comprising multiple filiform segments set alongside one another and connected together by thin connection portions.

Abstract: A method for producing graphic signs on a covering material includes providing a substrate and depositing on the substrate a particulate material that is able to define the graphic sign. In a preferred way, the particulate material is deposited on the substrate in a substantially uniform way, and is then impressed selectively in the substrate so that where it is subjected to impression the particulate material is fixed to the substrate. The particulate material is removed from the areas where it is not fixed to the substrate. The particulate material is then anchored to the substrate so that the particulate material anchored to the substrate defines the desired graphic sign.

Abstract: A synthetic-grass covering, usable, for example, for making artificial pitches for sports activities, consisting of a substrate made of sheet material and filiform formations, implanted in the sheet material so as to present a looped part that extends up against one of the surfaces of the sheet material and lateral branches that extend in order to simulate the grassy sward of natural turf from the opposite surface of the sheet material. The substrate made of sheet material comprises a pad with coupled thereto a layer made of heat-meltable material, and the filiform formations are also made of heat-meltable material, with the aforesaid looped parts that extend in an area corresponding to the layer made of heat-meltable material, heat-welded to the aforesaid layer.

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 synthetic-grass flooring may include a substrate with multiple filiform formations extending upwards from the substrate to simulate natural-grass cover or turf. End portions of the filiform formations may be curled to bestow upon the filiform formations a general tree-like conformation. The synthetic-grass flooring may be manufactured as a finished product in a factory. A particulate filling material or infill may be retained on the substrate by the curly ends of the filiform formations.

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.