Composition For Producing Sheet Material

Abstract

A composition for producing sheet material with sound dampening properties wherein the composition includes water, gelatine, glycerine and a filler material.

1 . A composition for producing sheet material with sound dampening properties wherein the composition includes water, gelatine, glycerine and a filler material. 
     
     
         2 . A composition according to  claim 1  wherein the composition includes:
 5-40 wt % water   5-30 wt % gelatine   5-40 wt % glycerine; and   20-60 wt % filler material.   
     
     
         3 . A composition according to  claim 1  wherein the composition further includes 1 to 15 wt % of a group II metal chloride. 
     
     
         4 . A composition according to  claim 3  wherein the group II metal chloride is chosen from calcium chloride or magnesium chloride. 
     
     
         5 . A composition according to  claim 4  wherein the composition includes 2 to 10 wt % magnesium chloride. 
     
     
         6 . A composition according to  claim 1  wherein the composition further includes 0.5 to 7 wt % starch or gluten. 
     
     
         7 . A composition according to  claim 6  wherein the starch is provided from the addition of cornflour to the composition. 
     
     
         8 . A composition according to  claim 1  wherein the filler material is a non-reactive material with a high density. 
     
     
         9 . A composition according to  claim 8  wherein the density of the filler material is greater than 1 g/cm 3 . 
     
     
         10 . A composition according to  claim 8  wherein the density of the filler material is approximately 2.0 to 3.0 g/cm 3 . 
     
     
         11 . A composition according to  claim 1  wherein the filler material is a non-reactive material with a high density. 
     
     
         12 . A composition according to  claim 1  wherein the filler material is either barium sulphate or KAOLIN. 
     
     
         13 . A composition for producing sheet material with sound dampening properties wherein the composition includes:
 10-25 wt % water   5-20 wt % gelatine   10-25 wt % glycerine;   40-60 wt % filler material;   1-10 wt % magnesium chloride; and   0.5-3 wt % starch.   
     
     
         14 . A composition according to  claim 1  wherein the composition further includes: ethylene and/or propylene glycols; polyvinyl alcohols; deodorisers; anti-oxidants and/or fungicides. 
     
     
         15 . A sheet material with sound dampening properties wherein the sheet material is prepared from a composition including:
 5-40 wt % water   5-30 wt % gelatine   5-40 wt % glycerine; and   20-60 wt % filler material.   
     
     
         16 . A sheet material according to  claim 15  wherein the composition includes 1 to 15 wt % of a group II metal chloride. 
     
     
         17 . A sheet material according to  claim 16  wherein the group II metal chloride is chosen from calcium chloride or magnesium chloride. 
     
     
         18 . A sheet material according to  claim 16  wherein the composition includes 2 to 10 wt % magnesium chloride. 
     
     
         19 . A sheet material according to  claim 15  wherein the composition further includes 0.5 to 7 wt % starch or gluten. 
     
     
         20 . A sheet material according to  claim 19  wherein the starch is provided by the addition of cornflour to the composition. 
     
     
         21 . A sheet material according to  claim 15  wherein the sheet material is between 1 and 8 mm in thickness. 
     
     
         22 . A sheet material according to  claim 15  wherein the density of the sheet material is from 1 g/cm 3  to 3 g/cm 3 . 
     
     
         23 . A sheet material according to  claim 15  wherein the sheet material is incorporated into a wall structure. 
     
     
         24 . A composite layered sheet material including a sheet material according to  claim 15  and another material bonded on either one or both planar surfaces of the sheet material. 
     
     
         25 . A composite layered sheet material according to  claim 24  wherein the other material is chosen from one or any combination of aluminium film, plasterboard, timber, steel (colourbond roofing), fibre-cement sheeting, non-woven polyester, acoustic foam or any other natural fibre matting. 
     
     
         26 . A composite layered sheet material according to  claim 24  wherein the sheet material is affixed to the other suitable material(s) by adhesive or during a curing process at manufacturing stage. 
     
     
         27 . A composite layered sheet material according to  claim 24  wherein the composite material is incorporated into a wall structure. 
     
     
         28 . A process for producing a sheet material with sound dampening properties including the steps of
 (i) combining water, glycerine and cornflour and heating the resulting mixture to 80-90° C. until a gel forms;   (ii) dissolving gelatine into the gel;   (iii) adding magnesium chloride to the gel;   (iv) mixing in the filler material to achieve a uniform composition;   (v) extruding the resulting gel into a flat sheet of desired thickness; and   (vi) cooling the sheet to room temperature whereby the sheet material cures.   
     
     
         29 . A process according to  claim 28  wherein at step (v) the gel is extruded onto an aluminium foil sheet, or another suitable material, whereby upon the sheet curing in step (vi), a composite layered sheet material is produced.