	US 12,146,267 B2
	Compostable cellulose-based paper for gas barrier in packaging material
Noel Cartier, Jardin (FR); and Hervé Planchard, Crach (FR)
Assigned to AHLSTROM OYJ, Helsinki (FI)
Appl. No. 17/774,615
Filed by Ahlstrom Oyj, Helsinki (FI)
PCT Filed Nov. 6, 2020, PCT No. PCT/EP2020/081281 § 371(c)(1), (2) Date May 5, 2022, PCT Pub. No. WO2021/089778, PCT Pub. Date May 14, 2021.
Claims priority of application No. 19207684 (EP), filed on Nov. 7, 2019.
Prior Publication US 2022/0403601 A1, Dec. 22, 2022
Int. Cl. D21H 27/10 (2006.01); B32B 27/10 (2006.01); B32B 29/00 (2006.01); B65D 65/46 (2006.01); D21H 17/64 (2006.01); D21H 17/65 (2006.01)

CPC D21H 27/10 (2013.01) [B32B 27/10 (2013.01); B32B 29/00 (2013.01); B65D 65/466 (2013.01); D21H 17/64 (2013.01); D21H 17/65 (2013.01); B32B 2307/558 (2013.01); B32B 2307/718 (2013.01); B32B 2307/7244 (2013.01); Y10T 428/1303 (2015.01)]

20 Claims

1. Compostable cellulose-based paper having an oxygen transmission rate of less than 10 cm³/(m²·day), when determined at 23° C. and 50% relative humidity, the compostable cellulose-based paper comprising a continuous cellulosic fiber matrix that comprises native cellulosic fibers and non-fibrous cellulosic material, wherein the content of the non-fibrous cellulosic material in the continuous cellulosic fiber matrix is of from 15 to 50 wt. %.