US 11,932,754 B2
High specific gravity geosynthetic comprising polypropylene
Chastity Adkins, Chattanooga, TN (US); Drew Loizeaux, Chattanooga, TN (US); Scott Manning, Chattanooga, TN (US); and Lee Pierce, Chattanooga, TN (US)
Assigned to Propex Operating Company, LLC, Chattanooga, TN (US)
Filed by Propex Operating Company, LLC, Chattanooga, TN (US)
Filed on Mar. 7, 2022, as Appl. No. 17/653,766.
Claims priority of provisional application 63/159,831, filed on Mar. 11, 2021.
Prior Publication US 2022/0289957 A1, Sep. 15, 2022
Int. Cl. C08L 23/14 (2006.01); C08F 10/06 (2006.01); E02D 17/20 (2006.01)
CPC C08L 23/14 (2013.01) [C08F 10/06 (2013.01); E02D 17/20 (2013.01); C08L 2201/02 (2013.01); E02D 2300/0085 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A geosynthetic comprising:
a composition comprising:
a polymer that consists of a propylene homopolymer;
from greater than 0 wt % to less than 3 wt % of a halogen-free flame retardant, based on the total weight of the composition;
greater than 20 wt % zinc sulfide; and
wherein the composition has a specific gravity greater than 1.00.