Methods for making high sound transmission class gypsum boards and gypsum boards made by the method

A layered gypsum wallboard can include: a gypsum board having opposing front and back faces, wherein the gypsum board comprises a first cover sheet material at the front face, a second cover sheet material at the back face, and a gypsum core layer comprising gypsum; an adhesive layer on the second c...

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Bibliographische Detailangaben
Hauptverfasser:	Sang, Yijun, Hemphill, Mark, Ray, Suman Sinha, Antosh, Mark
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BUILDING BUILDING MATERIALS CEILINGS FIXED CONSTRUCTIONS FLOORS GENERAL BUILDING CONSTRUCTIONS INSULATION OR OTHER PROTECTION OF BUILDINGS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS ROOFS SOUND-PRODUCING DEVICES STRUCTURAL ELEMENTS TRANSPORTING WALLS, e.g. PARTITIONS
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Beschreibung
Zusammenfassung:	A layered gypsum wallboard can include: a gypsum board having opposing front and back faces, wherein the gypsum board comprises a first cover sheet material at the front face, a second cover sheet material at the back face, and a gypsum core layer comprising gypsum; an adhesive layer on the second cover sheet material of the gypsum board, the adhesive including a polymer having a glass transition temperature (Tg) of −10° C. to 30° C.; an intermediate gypsum layer including gypsum on the adhesive layer such that the adhesive layer is between the second cover sheet material and the intermediate gypsum layer, wherein the adhesive layer and the intermediate gypsum layer have a combined thickness of 0.09 inches to 0.25 inches; and a third cover sheet material, wherein the intermediate gypsum layer is between and in contact with the adhesive layer and the third cover sheet material.