C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
25/111, 181/17
C04B 38/10 (2006.01) B28C 5/38 (2006.01) B32B 13/04 (2006.01) C04B 28/00 (2006.01) C04B 28/02 (2006.01) C04B 28/14 (2006.01) E04B 1/86 (2006.01) E04B 9/00 (2006.01) E04B 9/04 (2006.01) E04C 5/07 (2006.01) G10K 11/162 (2006.01) B28B 5/02 (2006.01) E04B 1/84 (2006.01)
Patent
CA 2320637
The present invention provides for an acoustically absorbent porous panel that is both rigid and resistant to sagging caused by moisture. The acoustically absorbent porous panel is comprised of at least two layers. The first layer is a facing layer formed from a cured aqueous foamed cementitious material. The foamed cementitious material comprises on a wet basis about 53% to about 68% by weight cement, about 17% to about 48% by weight water, about 0.05% to about 5% by weight fiber, and about 0.01 % to about 10% by weight surfactant. Additionally, pores distributed within the cured material comprising about 75% to about 95% by volume of the material. The second layer is a backing layer that is affixed to the facing layer.
Bischel Marsha Stalker
Christie Peter A.
Moser Andrea M.
Putt Dean L.
Wiker Anthony L.
Armstrong World Industries Inc.
Gowling Lafleur Henderson Llp
LandOfFree
Composite structure with foamed cementitious layer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composite structure with foamed cementitious layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite structure with foamed cementitious layer will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1919178