FIELD: chemistry.
SUBSTANCE: acoustic tile containing wet-filled mineral fiber base, nonwoven porous fiberglass canvas glued to base and coated with light-reflecting air-permeable coating, wherein at least 90 wt. % of base is mineral wool and binder, wherein the weight of the binder is less than 1/11 of the mass of mineral fibers, the density of bases is from about 11.4 pounds per cubic foot (182.6 kg/m3) to about 14.2 pounds per cubic foot (227.5 kg/m3), average diameter of mineral fiber is 4.5 to 8.3 micron, and composite of said base, canvas and coating.
EFFECT: technical result is providing a tile, having good noise reduction factor - NRC and a sound wave energy reduction factor - CAC.
9 cl, 2 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| GLASS FIBRE REINFORCED AND MINERAL WOOL BASED ACOUSTIC TILE | 2014 |
|
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|
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|
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| LOW-DENSITY NONWOVEN FABRIC, APPLIED WITH PRODUCTS OF ACOUSTIC CEILING TILES | 2010 |
|
RU2524105C2 |
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|
RU2421301C2 |
| WET SPINNING SUBSTRATE WITH HIGH SOUND ABSORPTION | 2008 |
|
RU2482084C2 |
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|
RU2507349C2 |
| PANELS COMPRISING RENEWABLE ELEMENTS AND METHODS OF THEIR MANUFACTURING | 2010 |
|
RU2532487C2 |
| LOW DENSITY ACOUSTIC PANELS | 2014 |
|
RU2618784C2 |
