Sound-absorbing device for a wall covering, ceiling covering, or floor covering

Abstract

A sound-absorbing device for a wall covering, ceiling covering, or floor covering has a support that comprises at least one sound-absorbing layer made of polymer foam. The layer constitutes a plurality of protrusions. The protrusions are arranged with a distribution such that a straight line that is continuous over the surface of the support is not projectable through the interstices.

1 . A sound-absorbing device ( 1 ,  6 ,  10 ,  33 ) for a wall covering, ceiling covering, or floor covering ( 31 ), having a support ( 2 ,  7 ,  11 ,  15 ,  34 ,  37 ) that comprises at least one sound-absorbing layer ( 3 ,  8 ,  12 ,  17 ,  36 ) made of polymer foam, which layer constitutes a plurality of protrusions ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ), 
 wherein the protrusions ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) are arranged with a distribution such that a straight line that is continuous over the surface of the support ( 2 ,  7 ,  11 ,  15 ,  34 ,  37 ) is not projectable through the interstices.    
   
   
       2 . The sound-absorbing device as defined in  claim 1 , wherein the protrusions are embodied in point-like fashion.  
   
   
       3 . The sound-absorbing device as defined in  claim 2 , wherein the protrusions constitute circular or polygonal surfaces.  
   
   
       4 . The sound-absorbing device as defined in  claim 1 , wherein the protrusions are embodied as ridges ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ).  
   
   
       5 . The sound-absorbing device as defined in  claim 4 , wherein ridges ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) proceed in a direction-changing fashion.  
   
   
       6 . The sound-absorbing device as defined in  claim 5 , wherein ridges ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) are continuous.  
   
   
       7 . The sound-absorbing device as defined in  claim 5 , wherein all the ridges ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) proceed in a direction-changing fashion.  
   
   
       8 . The sound-absorbing device as defined in  claim 5 , wherein ridges are present that proceed in different direction-changing fashions.  
   
   
       9 . The sound-absorbing device as defined in  claim 5 , wherein ridges ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) are present that proceed parallel to one another in a direction-changing fashion.  
   
   
       10 . The sound-absorbing device as defined in  claim 5 , wherein ridges ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) proceed in a direction-changing fashion in repeating patterns.  
   
   
       11 . The sound-absorbing device as defined in  claim 5 , wherein ridges proceed irregularly in a direction-changing fashion.  
   
   
       12 . The sound-absorbing device as defined in  claim 5 , wherein the ridges do not intersect one another.  
   
   
       13 . The sound-absorbing device as defined in  claim 5 , wherein multiple ridges respectively form ridge groups that proceed in different fashions.  
   
   
       14 . The sound-absorbing device as defined in  claim 5 , wherein ridges ( 4 ,  9 ,  13 ) proceed in the shape of a wave or meander.  
   
   
       15 . The sound-absorbing device as defined in  claim 5 , wherein ridges ( 18 - 21 ) proceed in closed patterns.  
   
   
       16 . The sound-absorbing device as defined in  claim 15 , wherein ridges ( 18 - 21 ) proceed so as to form circles, spirals, or polygons.  
   
   
       17 . The sound-absorbing device as defined in  claim 5 , wherein the cross section of the protrusions ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) can be curved, rectangular, triangular, lenticular, or trapezoidal.  
   
   
       18 . The sound-absorbing device as defined in  claim 1 , wherein the protrusions ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) have a height of 0.1 to 8 mm, preferably 0.5 to 6 mm.  
   
   
       19 . The sound-absorbing device as defined in  claim 1 , wherein protrusions ( 4 ,  9 ,  13 ,  18 - 21 ) of different heights are present.  
   
   
       20 . The sound-absorbing device as defined in  claim 1 , wherein the protrusions ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) have a base width of 5 to 20 mm, preferably 8 to 12 mm.  
   
   
       21 . The sound-absorbing device as defined in  claim 1 , wherein the spacing of the protrusions ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) ranges from 0 to 10 mm.  
   
   
       22 . The sound-absorbing device as defined in  claim 1 , wherein the surface coverage of the protrusions ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) at the base of the ridges ranges from 60 to 100%.  
   
   
       23 . The sound-absorbing device as defined in  claim 1 , wherein the protrusions ( 4 ,  9 ,  13 ,  18 - 21 ,  35 ) are made of polyurethane, polystyrene, polyether, or silicone elastomer.  
   
   
       24 . The sound-absorbing device as defined in  claim 1 , wherein the polymer foam has a density of 0.2 to 2.5 kg/m 3 , preferably 0.5 to 1.5 kg/m 3 .  
   
   
       25 . The sound-absorbing device as defined in  claim 1 , wherein the polymer foam has a Shore A hardness of 20 to 70, preferably 30 to 50.  
   
   
       26 . The sound-absorbing device as defined in claims  1 , wherein the polymer foam has a water uptake of less than 2%.  
   
   
       27 . The sound-absorbing device as defined in  claim 1 , wherein the support is embodied as at least one continuous, embossed, or perforated support film ( 2 ,  7 ,  11 ,  15 ,  34 ).  
   
   
       28 . The sound-absorbing device as defined in  claim 27 , wherein the support film ( 2 ,  7 ,  11 ,  15 ,  34 ,  37 ) is made from paper, paperboard, board, plastic, or metal, or combinations thereof.  
   
   
       29 . The sound-absorbing device as defined in  claim 27 , wherein the support film ( 2 ,  7 ,  11 ,  15 ,  34 ,  37 ) is embodied as a vapor barrier or liquid barrier.  
   
   
       30 . The sound-absorbing device as defined in  claim 27 , wherein the support film ( 2 ,  7 ,  11 ,  15 ,  34 ,  37 ) is assembled from film layers of different materials.  
   
   
       31 . The sound-absorbing device as defined in  claim 27 , wherein the sound-absorbing layer ( 36 ) is enclosed between two support films ( 34 ,  37 ).  
   
   
       32 . The sound-absorbing device as defined in  claim 27 , wherein the support film(s) ( 2 ,  7 ,  11 ,  15 ,  34 ,  37 ) has or have a weight of between 20 and 200 g/m 2 , preferably 35 and 100 g/m 2 .  
   
   
       33 . The sound-absorbing device as defined in  claim 27 , wherein the support film(s) ( 2 ,  7 ,  11 ,  15 ,  34 ,  37 ) has or have a thickness of between 10 and 500 μm.  
   
   
       34 . The sound-absorbing device as defined in  claim 1 , wherein the support has a rigid or semirigid covering layer, or is constituted thereby.  
   
   
       35 . The sound-absorbing device as defined in  claim 1 , wherein the support comprises at least one textile support material, or is constituted thereby.  
   
   
       36 . The sound-absorbing device as defined in  claim 35 , wherein the textile support material is embodied as consolidated nonwoven fabric, as spun-bonded fabric, woven fabric, knitted fabric, yarn layers or yarn lattices, or as a combination thereof.  
   
   
       37 . The sound-absorbing device as defined in  claim 36 , wherein the nonwoven fabric is made of PE, PP, PET, PVAc, PVC, or similar commodity plastics, or of glass.  
   
   
       38 . The sound-absorbing device as defined in  claim 37 , wherein the woven fabric, knitted fabric, yarn layer or yarn lattice is made of PE, PP, PA, or PET, or glass.  
   
   
       39 . The sound-absorbing device as defined in  claim 36 , wherein the woven fabric, knitted fabric, yarn layer, or yarn lattice is made of spun, texturized, multifilament, or monofilament yarns or ribbons.  
   
   
       40 . The sound-absorbing device as defined in  claim 27 , wherein the support comprises a combination of support film and textile support material.  
   
   
       41 . A floor covering or wall covering ( 31 ) having a covering layer ( 32 ), and having a sound-absorbing device ( 33 ) as defined in  claim 1 .  
   
   
       42 . The floor covering or wall covering as defined in  claim 41 , wherein the sound-absorbing device ( 33 ) rests loosely against the underside of the covering layer ( 32 ).  
   
   
       43 . The floor covering or wall covering as defined in  claim 41 , wherein the sound-absorbing device ( 33 ) is joined to the underside of the covering layer ( 32 ).  
   
   
       44 . The floor covering or wall covering as defined in  claim 41 , wherein the covering layer is embodied as a panel ( 32 ) or as a plastic web.