US 12,454,822 B2
Foam envelope for sealing large volumes
Eric Huebsch, Medingen (LU); Lars Massueger, Zurich (CH); and Cedric Thomi, Sezenove (CH)
Assigned to DDP SPECIALTY ELECTRONIC MATERIALS US, LLC, Wilmington, DE (US); and DUPONT SAFETY & CONSTRUCTION, INC., Wilmington, DE (US)
Filed by DUPONT SAFETY & CONSTRUCTION, INC., Wilmington, DE (US); and DDP SPECIALTY ELECTRONIC MATERIALS US, LLC, Wilmington, DE (US)
Filed on Apr. 19, 2023, as Appl. No. 18/136,644.
Claims priority of provisional application 63/460,062, filed on Apr. 18, 2023.
Prior Publication US 2024/0352727 A1, Oct. 24, 2024
Int. Cl. E06B 1/62 (2006.01); B32B 1/08 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); E04B 1/68 (2006.01)
CPC E04B 1/6816 (2013.01) [B32B 1/08 (2013.01); B32B 5/022 (2013.01); B32B 5/267 (2021.05); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B32B 2250/02 (2013.01); B32B 2307/724 (2013.01); B32B 2307/7265 (2013.01); B32B 2581/00 (2013.01); E04B 2001/6818 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An article comprising a tube having a length L, a width W and a height H,
wherein the tube comprises an upper section, a lower section, an inner section, and an outer section, and the tube comprises a tube wall having an inner layer and an outer layer, the inner layer being a semipermeable membrane that is permeable to vapors but impermeable to liquids and the outer layer being a nonwoven fabric,
wherein the tube has at least one inlet port integrated into the tube wall to permit the flow of fluid into the tube interior,
wherein the tube has a through-thickness Gurley air permeability of from 1 to 2,000 seconds, and the tube has a tensile modulus in the L direction of from 300 to 450 MPa and from 200 to 320 MPa in the W direction, and
wherein the tube has a plurality of holes that penetrate through the inner layer and the outer layer of the upper section and/or the lower section of the tube.