Container for carbonated beverages

Abstract

A container is provided for carbonated beverages such as beer, sparkling wines and soft drinks. The container can be made entirely of plant-based material such as card. In other forms of the invention additional layers of, for example, plastic or non-woven material may be provided. The container is therefore easy to dispose of.

1 . A container for a carbonated beverage comprising an external layer of plant fibre-based material and an internal layer of a substantially gas impervious material.  
     
     
         2 . A container for a carbonated beverage according to  claim 1  in which the external layer comprises multiple plies of the plant fibre-based material.  
     
     
         3 . A container for a carbonated beverage according to  claim 1  or  2  wherein four plies of the plant fibre-based material are provided.  
     
     
         4 . A container for a carbonated beverage according to any of  claims 1  to  3  wherein the external layer of plant fibre-based material comprises a sidewall which is a closed curve.  
     
     
         5 . A container for a carbonated beverage according to any of  claims 2  to  4  wherein two plies of plant fibre-based material are adhered to each other.  
     
     
         6 . A container for a carbonated beverage according to  claim 5  wherein the external layer further includes endcaps occluding the sidewall.  
     
     
         7 . A container for a carbonated beverage according to  claims 1  to  6  wherein the gas impervious material comprises a membrane of a plastic material.  
     
     
         8 . A container for a carbonated beverage according to  claim 6  or  7  in which the sidewall comprises concentric plies of plant fibre-based material.  
     
     
         9 . A container for carbonated beverages according to  claim 8  in which the concentric plies of material are formed into closed curves by butt jointing.  
     
     
         10 . A container for a carbonated beverage according to  claim 9  wherein the butt joints of the plies of material are offset from each other.  
     
     
         11 . A container for a carbonated beverage according to  claims 4  to  10  wherein the endcaps are conical in shape.  
     
     
         12 . A container for a carbonated beverage according to  claim 11  in which the endcaps are adhered to the internal wall of the sidewall.  
     
     
         13 . A container for a carbonated beverage according to  claim 11  in which one endcap is adhered to the interior of the sidewall and the other endcap is adhered to the exterior of the sidewall.  
     
     
         14 . A container of carbonated beverage comprising a container for carbonated beverage according to any of  claims 1  to  13  with carbonated beverage contained therewithin.  
     
     
         15 . A container for a carbonated beverage comprising a sidewall and at least one endwall at least a portion of which is releasably attached to the container, wherein the sidewall comprises at least one layer of cellulose material.  
     
     
         16 . A method of manufacturing a container for a carbonated beverage comprising providing an external layer of plant fibre-based material and a layer of substantially gas impervious material, the layer of substantially gas impervious material being placed inside the external layer of plant fibre-based material.