US 12,459,245 B2
Enhanced bag drop film and packaging using oriented high-density polyethylene
Eric T. Gohr, Sharpsburg, GA (US); and Robert M. Sheppard, Peachtree City, GA (US)
Assigned to JFE Innovation Center SRL, Virton (BE)
Filed by Jindal Films Americas LLC, LaGrange, GA (US)
Filed on Jun. 8, 2023, as Appl. No. 18/207,501.
Application 18/207,501 is a continuation of application No. PCT/US2022/040342, filed on Aug. 15, 2022.
Claims priority of provisional application 63/233,235, filed on Aug. 14, 2021.
Prior Publication US 2023/0311467 A1, Oct. 5, 2023
Int. Cl. B32B 27/32 (2006.01); B32B 27/08 (2006.01); B32B 27/16 (2006.01); B32B 27/18 (2006.01)
CPC B32B 27/32 (2013.01) [B32B 27/08 (2013.01); B32B 27/16 (2013.01); B32B 27/18 (2013.01); B32B 2250/05 (2013.01); B32B 2250/242 (2013.01); B32B 2250/40 (2013.01); B32B 2270/00 (2013.01); B32B 2307/412 (2013.01); B32B 2307/518 (2013.01); B32B 2307/54 (2013.01); B32B 2307/581 (2013.01); B32B 2307/7376 (2023.05); B32B 2439/46 (2013.01); B32B 2439/70 (2013.01)] 20 Claims
 
1. A polyethylene film comprising:
a core layer having a thickness from about 20 μm to about 100 μm;
a first tie layer on a first side of the core layer consisting essentially of: (i) at least about 20 wt. % olefin-block copolymer; (ii) at least about 40 wt. % low-density polyethylene; and (iii) at least about 40 wt. % high-density polyethylene; and
a second tie layer on a second side of the core layer comprising: (i) at least about 20 wt. % low-density polyethylene; and (ii) at least about 40 wt. % high-density polyethylene,
wherein the first tie layer and the second tie layer each have a thickness from about 3 μm to about 12 μm;
wherein the polyethylene film is oriented.