E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
E04B 1/84 (2006.01) E04B 1/86 (2006.01) E04C 2/02 (2006.01) E04C 2/26 (2006.01)
Patent
CA 2721574
A panel includes about 0.1 % to about 95% by weight of a renewable component and has at least one of a CAC value of at least about 25, an NRC value of at least about 0 25 and an STC of at least about 25 In an embodiment, the panel has a core including 0.1 % to 95% by weight of the renewable component, 0.1 % to 95% by weight fibers, and 1% to 30% by weight binders, all based on dry panel weight. The renewable component optionally has a particle size distribution whereby less than 5% of the particles are retained by a mesh screen with openings of 0.312 inches and less than 5% of the particles pass through a mesh screen with openings of 0.059 inches A method for manufacturing such panels is also provided.
L'invention porte sur un panneau qui comprend environ 0,1 % à environ 95 % en poids d'un composant renouvelable et a au moins l'un parmi une valeur CAC d'au moins environ 25, une valeur NRC d'au moins environ 0,25 et un STC d'au moins environ 25. Dans un mode de réalisation, le panneau a une partie centrale comprenant 0,1 % à 95 % en poids du composant renouvelable, 0,1 % à 95 % en poids de fibres et 1 % à 30 % en poids de liants, tous sur la base du poids de panneau sec. Le composant renouvelable a, de façon facultative, une distribution de dimension de particules selon laquelle moins de 5 % des particules sont retenues par un tamis à mailles avec des ouvertures de 0,312 pouces et moins de 5 % des particules passent à travers un tamis à mailles avec des ouvertures de 0,059 pouces. L'invention porte également sur un procédé de fabrication de tels panneaux.
Brown Martin W.
Cao Bangli
Lau Te Hua
Malone Curt
Song W. David
Company United States Gypsum
Perley-Robertson Hill & Mcdougall Llp
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