Composite shoddy

Abstract

The present invention relates to a composite shoddy for use in a vehicle interior. To this end, the composite shoddy of the present invention includes an organic material having a predetermined density defining a shoddy bottom layer and a scrim material having a predetermined density defining a scrim top layer. The scrim top layer is adapted to operatively engage a surface material and accommodate movement of a surface material in the shear direction. The composite shoddy further includes a bituminous mastic material having a predetermined density defining a mastic middle layer. The mastic middle layer is disposed between the organic bottom layer and the scrim top layer.

1 . A composite shoddy for use for use in automotive applications comprising: 
 an organic material having a predetermined density defining a shoddy bottom layer;    a scrim material having a predetermined density defining a scrim top layer;    a primarily bituminous mastic material having a predetermined density defining a mastic middle layer operatively disposed between said shoddy bottom layer and said scrim top layer;    said scrim top layer adapted to operatively engage a surface material and accommodate movement of a surface material in the shear direction.    
     
     
         2 . The composite shoddy as set forth in  claim 1  wherein said shoddy bottom layer is an organic material adapted to provide an aesthetic cushion.  
     
     
         3 . The composite shoddy as set forth in  claim 2  wherein said organic fibrous material includes a cotton base material.  
     
     
         4 . The composite shoddy as set forth in  claim 1  wherein said shoddy bottom layer further includes an engaging side adapted to operatively engage said mastic middle layer through an adhesive bond.  
     
     
         5 . The composite shoddy as set forth in  claim 1  wherein said predetermined density of said mastic middle layer is greater than said predetermined densities of said shoddy bottom layer and said scrim top layer, said mastic middle layer adapted to provide vibration dampening and sound dampening.  
     
     
         6 . The composite shoddy as set forth in  claim 5  wherein said mastic middle layer includes a bituminous base material.  
     
     
         7 . The composite shoddy as set forth in  claim 1  wherein said mastic middle layer includes a first surface and a second surface opposite said first surface, said first surface adapted to engage said shoddy bottom layer and said second surface adapted to operatively engage said scrim top layer.  
     
     
         8 . The composite shoddy as set forth in  claim 1  wherein said scrim top layer is a non-woven material adapted to prevent adhesion between a first composite shoddy and a second composite shoddy placed in a stacking configuration.  
     
     
         9 . The composite shoddy as set forth in  claim 1  wherein said scrim top layer includes a contact surface to operatively engage said mastic middle layer and a receiving surface opposite said contact surface.  
     
     
         10 . The composite shoddy as set forth in  claim 9  wherein said receiving surface is adapted to operatively engage the B-side of a non-carpeted surface material adapted for use in automotive applications, said scrim top layer adapted to facilitate movement of a non-carpeted surface layer in the shear direction relative to said mastic middle layer.