	US 11,814,836 B2
	Acoustic insulation product comprising a backing layer
Benjamin Sourcis, Paris (FR); and Pierre Leroy, Saint Felix (FR)
Assigned to SAINT-GOBAIN ISOVER, Courbevoie (FR); and SAINT-GOBAIN PLACO, Courbevoie (FR)
Appl. No. 17/604,267
Filed by SAINT-GOBAIN ISOVER, Courbevoie (FR); and SAINT-GOBAIN PLACO, Courbevoie (FR)
PCT Filed Apr. 6, 2020, PCT No. PCT/EP2020/059729 § 371(c)(1), (2) Date Oct. 15, 2021, PCT Pub. No. WO2020/212177, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. 19169606 (EP), filed on Apr. 16, 2019.
Prior Publication US 2022/0195723 A1, Jun. 23, 2022
Int. Cl. E04B 1/86 (2006.01); E04B 9/00 (2006.01); E04B 9/04 (2006.01); E04B 9/24 (2006.01); E04B 1/82 (2006.01); E04B 1/84 (2006.01)

CPC E04B 1/86 (2013.01) [E04B 9/001 (2013.01); E04B 9/045 (2013.01); E04B 9/241 (2013.01); E04B 2001/8281 (2013.01); E04B 2001/848 (2013.01); E04B 2001/8461 (2013.01)]

20 Claims

1. An acoustic insulation product, comprising:

a panel made of porous material comprising a first face forming a back face, intended to face towards a wall surface and a second face forming a front face, situated opposite to the back face,

a layer forming a backing layer, which adheres to or is linked or coupled at least in part to the back face of the panel made of porous material, the backing layer having an airflow resistance of between 5 kPa·s/m and 20 kPa·s/m,

wherein the panel made of porous material has an airflow resistivity of between 30 kPa·s/m²and 120 kPa·s/m².