US 12,472,727 B2
Thermoformable sheet and thermoformed package
Maxime Vagenende, Serskamp (BE); and Bert De Schoenmaker, Laarne (BE)
Assigned to AMCOR FLEXIBLES NORTH AMERICA, INC., Neenah, WI (US)
Appl. No. 18/687,742
Filed by AMCOR FLEXIBLES NORTH AMERICA, INC., Neenah, WI (US)
PCT Filed Sep. 3, 2021, PCT No. PCT/US2021/048967
§ 371(c)(1), (2) Date Feb. 28, 2024,
PCT Pub. No. WO2023/033830, PCT Pub. Date Mar. 9, 2023.
Prior Publication US 2024/0359439 A1, Oct. 31, 2024
Int. Cl. B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B65D 75/22 (2006.01)
CPC B32B 27/08 (2013.01) [B32B 27/306 (2013.01); B32B 27/32 (2013.01); B65D 75/22 (2013.01); B32B 2255/10 (2013.01); B32B 2270/00 (2013.01); B32B 2307/31 (2013.01); B32B 2307/4023 (2013.01); B32B 2307/516 (2013.01); B32B 2307/718 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/7246 (2013.01); B32B 2307/7376 (2023.05); B32B 2307/738 (2013.01); B32B 2307/748 (2013.01); B32B 2439/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A thermoformable sheet comprising:
an exterior film, the exterior film comprising between 50% and 100% polyolefin-based polymers, by weight;
a printed pigment layer;
an adhesive layer;
an inner layer comprising between 60% and 100% of high-density polyethylene polymer, by weight, the inner layer comprising a thickness between 100 microns and 350 microns; and
an interior sealing layer;
wherein the printed pigment layer and the adhesive layer are located between the exterior film and the inner layer, and
the inner layer is unoriented.