E - Fixed Constructions – 04 – C
Patent
E - Fixed Constructions
04
C
E04C 2/296 (2006.01) B32B 17/02 (2006.01) B32B 27/30 (2006.01) B32B 29/02 (2006.01) B32B 29/04 (2006.01) E04B 1/86 (2006.01) E04C 2/24 (2006.01) E04B 1/74 (2006.01) E04B 1/84 (2006.01)
Patent
CA 2316586
The present invention relates to a multi-layered, substantially rigid and self- supporting acoustical panel. Preferably, the panel includes a preformed, acoustically absorbent semi-rigid core having a substantially continuous interior porosity. The panel also includes an acoustically permeable face layer applied to a first face of the preformed core, wherein the face layer is adapted to allow acoustical energy to pass through the face layer and into the acoustically absorbent core. The panel also includes a flame-retardant, calendered paper backing adapted to be applied to the preformed core. According to the present invention, the panel may also include a flame-retardant adhesive adapted to attach the calendered, flame-retardant paper backing to the preformed core.
Kulas Laurel
Wiker Anthony
Armstrong World Industries Inc.
Awi Licensing Company
Gowling Lafleur Henderson Llp
LandOfFree
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