US 12,280,569 B2
Sheet-like composite for producing dimensionally stable food product containers with a barrier layer comprising a barrier substrate layer and an inwards-pointing barrier material layer
Daniel Heinze, Linnich (DE)
Assigned to SIG SERVICES AG, Neuhausen am Rheinfall (CH)
Appl. No. 16/481,650
Filed by SIG SERVICES AG, Neuhausen am Rheinfall (CH)
PCT Filed Jan. 12, 2018, PCT No. PCT/EP2018/050777
§ 371(c)(1), (2) Date Jul. 29, 2019,
PCT Pub. No. WO2018/137947, PCT Pub. Date Aug. 2, 2018.
Claims priority of application No. 102017201449.0 (DE), filed on Jan. 30, 2017.
Prior Publication US 2019/0389184 A1, Dec. 26, 2019
Int. Cl. B32B 27/08 (2006.01); B32B 3/30 (2006.01); B32B 5/14 (2006.01); B32B 7/12 (2006.01); B32B 27/10 (2006.01); B32B 27/20 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B32B 29/00 (2006.01)
CPC B32B 27/08 (2013.01) [B32B 3/30 (2013.01); B32B 5/142 (2013.01); B32B 7/12 (2013.01); B32B 27/10 (2013.01); B32B 27/20 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/325 (2013.01); B32B 27/327 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 29/00 (2013.01); B32B 2250/05 (2013.01); B32B 2255/205 (2013.01); B32B 2264/102 (2013.01); B32B 2264/108 (2013.01); B32B 2264/12 (2013.01); B32B 2270/00 (2013.01); B32B 2307/308 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/516 (2013.01); B32B 2307/518 (2013.01); B32B 2307/558 (2013.01); B32B 2307/714 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A sheet-like composite comprising as layers of a layer sequence in a direction from an outer side of the sheet-like composite to an inner side of the sheet-like composite
a) a carrier layer, and
b) a barrier layer comprising
i) a barrier substrate layer, and
ii) a barrier material layer;
wherein the barrier material layer has a thickness in a range from 1 nm to 800 nm;
wherein any barrier material layer having a thickness in a range from 1 nm to 800 nm overlies the barrier substrate layer only on a layer surface of the barrier substrate layer that faces the inner side,
wherein the barrier material layer comprises a barrier material to an extent of at least 60% by weight, based on the weight of the barrier material layer,
wherein the barrier material is an elemental metal; and
wherein the barrier layer has at least one of the following features:
a. an oxygen permeation rate in a range from 0.1 to 40 cm3/(m2 · d · bar); and
b. a water vapour permeation rate in a range from 0.1 to 40 g/(m2·d).