	US 11,788,282 B2
	Mineral wool acoustic panel and process for manufacturing such a panel
Gary Jacqus, Paris (FR); Sylvain Berger, Paris (FR); Pierre Leroy, Saint Félix (FR); Erling Nilsson, Lund (SE); and Delphine Dray, Pantin (FR)
Assigned to SAINT-GOBAIN ISOVER, Courbevoie (FR); and SAINT-GOBAIN PLACO, Courbevoie (FR)
Appl. No. 16/755,464
Filed by SAINT-GOBAIN ISOVER, Courbevoie (FR); and SAINT-GOBAIN PLACO, Courbevoie (FR)
PCT Filed Oct. 12, 2018, PCT No. PCT/EP2018/077819 § 371(c)(1), (2) Date Apr. 10, 2020, PCT Pub. No. WO2019/073020, PCT Pub. Date Apr. 18, 2019.
Claims priority of application No. 17196308 (EP), filed on Oct. 13, 2017.
Prior Publication US 2020/0240137 A1, Jul. 30, 2020
Int. Cl. E04B 1/84 (2006.01); C03B 37/04 (2006.01); D04H 1/4218 (2012.01); G10K 11/162 (2006.01); G10K 11/172 (2006.01)

CPC E04B 1/8409 (2013.01) [C03B 37/04 (2013.01); D04H 1/4218 (2013.01); D10B 2401/063 (2013.01); G10K 11/162 (2013.01); G10K 11/172 (2013.01)]

20 Claims

1. A mineral wool panel intended to be used as an acoustic panel and having:

a surface density of greater than or equal to 3.2 kg/m²,

an air flow resistivity of between 30 and 120 kPa·s/m², and

a Young's modulus of between 0.5 and 4 MPa,

and the mineral wool panel not being cut through the thickness along a plane substantially parallel to its two main faces, and wherein said mineral wool panel has a panel volume of mineral wool and results directly from manufacture of said mineral wool so that none of said two main faces is a face that results from cutting through a block of mineral wool of volume greater than said panel volume.