21-06-2018 дата публикации
Номер: US20180171566A1
An artificial turf system comprises a resilient layer, an artificial grass layer comprising a substrate and pile fibers upstanding from the substrate and an infill layer. The infill layer comprises smooth, hard granules having a mean size of between 1.8 mm and 10 mm disposed on the substrate and interspersed between the pile fibers. The smooth, hard granules provide improved characteristics in terms of foot release. 116-. (canceled)17. An artificial turf system comprising:a resilient layer;an artificial grass layer comprising a substrate and pile fibres upstanding from the substrate;an infill layer, disposed on the substrate and interspersed between the pile fibres, the infill layer consisting of particles comprising smooth, hard granules having a mean size of between 2 mm and 4 mm and infill particulates, wherein the granules have a surface hardness of greater than Shore D 45 and at least 50 vol % of the particles are smooth, hard granules falling within the defined size range.18. The system according to claim 17 , wherein at least 80 vol % of the particles are smooth claim 17 , hard granules having a mean size of between 2 mm and 4 mm.19. The system according to claim 17 , wherein the granules have a surface hardness of greater than Shore D 48.20. The system according claim 17 , wherein the granules comprise a thermoplastic material selected from the group comprising: PE claim 17 , PP claim 17 , PA claim 17 , PU claim 17 , PS claim 17 , ABS claim 17 , PC claim 17 , PET claim 17 , PEF claim 17 , PHA and PLA.21. The system according claim 17 , wherein the granules have a frictional coefficient of 0.5.22. The system according claim 17 , wherein the granules are of medium to high sphericity and roundness.23. The system according to claim 17 , wherein the granules exhibit an angle of repose of less than 40 degrees.24. The system according to claim 17 , wherein the infill layer has a depth of at least 20 mm.25. The system according to claim 17 , wherein the pile fibres ...
Подробнее