Patent ID: 8109696

Claim:
A net for geotechnical applications, comprising an extruded polymer sheet body formed by superimposing two sets of filaments in order to provide a lattice structure, said two sets of filaments mutually intersecting to form meshes, and said two sets of filaments being made of a first polymer, wherein said sheet body is provided by means of said first polymer and a second polymer, said first polymer and said second polymer together defining said lattice structure, said first and second polymers being mutually coextruded together to form said extruded polymer sheet body as a single element, and said second polymer being arranged at regions of at least one face of said sheet body such that said first polymer and said second polymer form said net as said single element having said lattice structure, said regions of said second polymer comprising a plurality of mutually parallel linear strands being arranged on and extending exclusively along one set of said two sets of filaments, said first polymer having physical and mechanical characteristics of compressive and tensile strength, said second polymer having a reduced surface hardness with respect to said first polymer.