Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HIGH NOISE REDUCTION COEFFICIENT, LOW DENSITY ACOUSTICAL TILES
Acoustical tile including a dried base mat of: about 70 to about 90 wt% mineral wool; about 5 to about 15 wt% perlite; 0 to about 10 wt% starch; about 3 to about 10 wt% latex; 0 to about 5 wt% gypsum;and less than 5 wt% water. The dried base mat without including glass fibers and without a laminate layer or coating and without perforations has a NRC of about 0.70 or greater, a density of about 10pcf to about 12 pcf, and a thickness of about 1/2 to about 1 inch. The acoustical tile can further include a back coating at a surface weight of about 5 grams per square foot (gsf) to about 40 gsf tothe dried base mat, wherein the acoustical tile has the CAC rating of about 30 to about 35.
包括干燥基垫的隔音砖，该基垫为：约70至约90重量％的矿棉；约5至约15重量％的珍珠岩；0至约10重量％的淀粉；约3至约10重量％的胶乳；0至约5重量％的石膏；和少于5重量％的水。该不包含玻璃纤维和没有层压层或涂层并且没有穿孔的干燥基垫的NRC为约0.70或更高、密度为约10pcf至约12pcf和厚度约1/2至约1英寸。隔音砖还包括向所述干燥基垫施加的背面涂层，表面重量约5克/平方英尺(gsf)至约40gsf，其中所述隔音砖的CAC等级为约30至约35。
HIGH NOISE REDUCTION COEFFICIENT, LOW DENSITY ACOUSTICAL TILES
Acoustical tile including a dried base mat of: about 70 to about 90 wt% mineral wool; about 5 to about 15 wt% perlite; 0 to about 10 wt% starch; about 3 to about 10 wt% latex; 0 to about 5 wt% gypsum;and less than 5 wt% water. The dried base mat without including glass fibers and without a laminate layer or coating and without perforations has a NRC of about 0.70 or greater, a density of about 10pcf to about 12 pcf, and a thickness of about 1/2 to about 1 inch. The acoustical tile can further include a back coating at a surface weight of about 5 grams per square foot (gsf) to about 40 gsf tothe dried base mat, wherein the acoustical tile has the CAC rating of about 30 to about 35.
包括干燥基垫的隔音砖，该基垫为：约70至约90重量％的矿棉；约5至约15重量％的珍珠岩；0至约10重量％的淀粉；约3至约10重量％的胶乳；0至约5重量％的石膏；和少于5重量％的水。该不包含玻璃纤维和没有层压层或涂层并且没有穿孔的干燥基垫的NRC为约0.70或更高、密度为约10pcf至约12pcf和厚度约1/2至约1英寸。隔音砖还包括向所述干燥基垫施加的背面涂层，表面重量约5克/平方英尺(gsf)至约40gsf，其中所述隔音砖的CAC等级为约30至约35。
HIGH NOISE REDUCTION COEFFICIENT, LOW DENSITY ACOUSTICAL TILES
高降噪系数、低密度隔音砖
XU WEI (Autor:in) / MAYERS THOMAS M (Autor:in) / BAKKEN SCOTT C (Autor:in)
01.05.2020
Patent
Elektronische Ressource
Chinesisch
HIGH NOISE REDUCTION COEFFICIENT, LOW DENSITY ACOUSTICAL TILES
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| Europäisches Patentamt | 2019