US 12,077,919 B2
Infill for synthetic and hybrid turfs and turfs so obtained
Marco Volterrani, San Giuliano Terme (IT); and Martina Nusca, Pisa (IT)
Assigned to MAR.PPROJECT S.R.L., Pisa (IT); and MARCO VOLTERRANI, San Giuliano Terme (IT)
Filed by MAR.PROJECT S.R.L., Pisa (IT); and Marco Volterrani, San Giuliano Terme (IT)
Filed on Sep. 30, 2020, as Appl. No. 17/038,374.
Application 17/038,374 is a division of application No. 14/431,381, granted, now 10,822,751, previously published as PCT/IB2013/058841, filed on Sep. 25, 2013.
Claims priority of application No. PI2012A000099 (IT), filed on Sep. 28, 2012.
Prior Publication US 2021/0010209 A1, Jan. 14, 2021
Int. Cl. E01C 13/08 (2006.01)
CPC E01C 13/08 (2013.01) [E01C 2013/086 (2013.01); Y10T 428/23921 (2015.04); Y10T 428/31978 (2015.04)] 9 Claims
OG exemplary drawing
 
1. A synthetic or hybrid synthetic-natural turf for sports, recreational, or ornamental uses, comprising:
a mat having a first face arranged on a surface to be covered and a second face opposite the first face;
a plurality of blades of synthetic material connected to and extending from said second face, and forming a synthetic mat; and
an infill material distributed on said second face;
wherein the infill material consists of a first layer consisting of a mixture of:
a predetermined percentage by volume of a vegetable material consisting of rachis of cereal ear that is not coated by a layer, or film, of material, and wherein said vegetable material consisting of rachis of cereal ear has a granulometry of between 0.3 mm and 5.0 mm;
a predetermined percentage by volume of a vegetable ligninic and/or resinous material containing lignin and/or resin, being resistant to attack by microorganisms; and
a predetermined percentage by volume of a loose final product from raw material based on ground cork; and
a second layer positioned below the first layer and consisting of a vegetable material consisting of rachis of cereal ear that is not coated by a layer, or film, of material.