US 12,246,513 B2
Building envelope
Pierrick Girard, Sainte Foy-lès-Lyon (FR); and Ann-Mari Ukkonen, Valkeakoski (FI)
Assigned to WALKI GROUP OY, Espoo (FI)
Appl. No. 18/718,547
Filed by Walki Group Oy, Espoo (FI)
PCT Filed Jul. 1, 2022, PCT No. PCT/FI2022/050486
§ 371(c)(1), (2) Date Jun. 11, 2024,
PCT Pub. No. WO2023/111381, PCT Pub. Date Jun. 22, 2023.
Claims priority of application No. 21214963 (EP), filed on Dec. 16, 2021.
Prior Publication US 2024/0416623 A1, Dec. 19, 2024
Int. Cl. B32B 15/14 (2006.01); B32B 5/02 (2006.01); B32B 7/12 (2006.01); B32B 15/20 (2006.01); C09J 7/29 (2018.01); C09J 7/38 (2018.01); E04B 1/94 (2006.01)
CPC B32B 15/14 (2013.01) [B32B 5/02 (2013.01); B32B 7/12 (2013.01); B32B 15/20 (2013.01); C09J 7/29 (2018.01); C09J 7/385 (2018.01); E04B 1/941 (2013.01); B32B 2255/02 (2013.01); B32B 2255/26 (2013.01); B32B 2262/101 (2013.01); B32B 2307/3065 (2013.01); B32B 2307/718 (2013.01); B32B 2307/7376 (2023.05); B32B 2419/00 (2013.01); C09J 2203/346 (2020.08); C09J 2301/302 (2020.08)] 20 Claims
OG exemplary drawing
 
1. A building envelope (100) comprising a fire resistant tape (20) and a fire resistant barrier material (10), wherein the fire resistant tape (20) seals a seam between a first sheet (10a) of the fire resistant barrier material and a second sheet (10b) of the fire resistant barrier material,
wherein
A) the fire resistant barrier material (10) comprises
a metallic layer (13) of the fire resistant barrier material (10) which is an aluminum layer having a thickness in a range between 6 μm and 100 μm,
a support layer (15) of the fire resistant barrier material (10) comprising
a glass fiber fabric having a specific mass in a range between 50 g/m2 and 500 g/m2, or
a glass fiber scrim having a specific mass in a range between 5 g/m2 and 50 g/m2,
and
a glue layer (14) of the fire resistant barrier material (10) between the metallic layer (13) and the support layer (15), the glue layer glue having a specific mass in a range between 0.5 g/m2 and 15 g/m2,
and
B) the fire resistant tape comprises
a metallic layer (23) of the fire resistant tape (20), which is an aluminum layer having a thickness in a range between 6 μm and 100 μm,
a support layer (25) of the fire resistant tape (20) comprising
a glass fiber fabric having a specific mass in a range between 50 g/m2 and 500 g/m2, or
a glass fiber scrim having a specific mass in a range between 5 g/m2 and 50 g/m2,
a glue layer (24) of the fire resistant tape (20) between the metallic layer (23) of the fire resistant tape and the support layer (25) of the fire resistant tape, the glue layer having a specific mass in a range between 0.5 g/m2 and 15 g/m2, and
an acrylic pressure sensitive adhesive coating layer (28) on the support layer (25) of the fire resistant tape, the acrylic pressure sensitive adhesive coating layer (28) having a specific mass in a range between 20 g/m2 and 200 g/m2.