	US 12,344,459 B2
	Compostable lid comprising an oxygen barrier layer for sealing a capsule and capsule sealed by the lid
Florence Vidal, Saint Cyr au Mont D'or (FR); Mireille Roux, Givors (FR); Hervé Planchard, Crach (FR); and Patrice Blanc, Saint Genis Laval (FR)
Assigned to AHLSTROM OYJ, Helsinki (FI)
Appl. No. 16/607,375
Filed by Ahlstrom Oyj, Helsinki (FI)
PCT Filed Apr. 27, 2018, PCT No. PCT/EP2018/060888 § 371(c)(1), (2) Date Oct. 23, 2019, PCT Pub. No. WO2018/197676, PCT Pub. Date Nov. 1, 2018.
Claims priority of application No. 1753723 (FR), filed on Apr. 28, 2017.
Prior Publication US 2020/0140187 A1, May 7, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. B65D 85/804 (2006.01); B65D 65/46 (2006.01); B29L 31/00 (2006.01)

CPC B65D 85/8061 (2020.05) [B65D 65/466 (2013.01); B65D 85/8052 (2020.05); B29L 2031/7174 (2013.01); B32B 2262/067 (2013.01); B32B 2307/7163 (2013.01); B32B 2307/7244 (2013.01)]

18 Claims

1. A compostable lid sealed to a coffee capsule, the compostable lid composed of a multilayer article comprising at least:

a non-woven comprising fibers which contain at least 50% by weight of biodegradable fibers,

a support comprising a vegetable parchment, wherein the vegetable parchment has a ratio of wet burst strength measured according to ISO Standard 3689/1994/dry burst strength measured according to ISO Standard 2758:201 of between 1:2 and 7:10,

at least one oxygen barrier layer having a grammage between 0.5 g/m²and 8 g/m², and

wherein the lid is sealed to a rim of a capsule body of the coffee capsule to seal the coffee capsule, with the non-woven facing the rim;

wherein the grammage of the non-woven is between 5 and 100 g/m².