US 12,331,469 B2
Artificial turf yarn with improved processibility and friction management
Eduardo Alvarez, Tarragona (ES); David Lopez, Tarragona (ES); Cosme Llop, Tarragona (ES); Thibault Kervyn De Meerendre, Seneffe (BE); and Celine Chevallier, Annecy (FR)
Assigned to Multibase Inc., Copley, OH (US)
Appl. No. 17/049,415
Filed by Multibase Inc., Copley, OH (US)
PCT Filed May 3, 2019, PCT No. PCT/US2019/030604
§ 371(c)(1), (2) Date Oct. 21, 2020,
PCT Pub. No. WO2019/213524, PCT Pub. Date Nov. 7, 2019.
Claims priority of application No. 18382307 (EP), filed on May 3, 2018.
Prior Publication US 2021/0238811 A1, Aug. 5, 2021
Int. Cl. E01C 13/08 (2006.01); C08L 23/08 (2025.01); C08L 83/04 (2006.01); D01F 6/30 (2006.01); D01F 6/46 (2006.01)
CPC E01C 13/08 (2013.01) [C08L 23/08 (2013.01); C08L 83/04 (2013.01); D01F 6/30 (2013.01); D01F 6/46 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An artificial turf filament formed from a formulation comprising:
90 to 98 weight percent based on a total weight of the formulation of an ethylene-based polymer having a density 0.900 g/c to 0.955 g/cc and a melt index (I2) of 0.1 g/10 min to 20 g/10 min as measured according to ASTM D1238 (at 190 C, 2.16 kg),
from 0 to 2.5 weight percent based on the total weight the formulation of a first polydimethylsiloxane having a number average molecular weight (Mn) of 300,000 g/mol; and
from 0 to 2.5 weight percent based on the total weight of the formulation of a second polydimethylsiloxane having a number average molecular weight (Mn) of 17,000 g/mol, wherein each Mn is measured by Gel Permeation Chromatography (GPC); and
wherein the sum of the amounts of the first and second polydimethylsiloxanes is from 0.5 to 2.5 weight percent based on a total weight of the formulation.