C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 28/14 (2006.01) B28B 5/02 (2006.01) B28B 19/00 (2006.01) E04C 2/04 (2006.01) E04B 1/74 (2006.01) E04B 1/76 (2006.01) E04B 1/84 (2006.01)
Patent
CA 2516084
An acoustical panel comprising a continuous phase of an interlocking set gypsum matrix and a method of preparing an acoustical panel from a mixture comprising calcined gypsum, a foaming agent, cellulosic fibers, lightweight aggregate, binder as well as further additives.
La présente invention a trait à un panneau acoustique comprenant une phase continue d'une matrice autobloquante de gypse durci et un procédé de préparation d'un panneau acoustique à partir d'un mélange comprenant du gypse calciné, un agent d'expansion, des fibres cellulosiques, un agrégat léger, un liant ainsi que d'autres additifs.
Dombeck Russell A.
Englert Mark H.
Fults Therese A.
Petersen Bruce L.
Porter Michael J.
Company United States Gypsum
Gowling Lafleur Henderson Llp
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