Longitudinal shrink films

Abstract

A heat-shrinkable film and a method of its manufacture are provided. In an exemplary embodiment, a polystyrene film exhibits heat-induced growth in the cross direction of great than or equal to 5% with greater than or equal to 30% concomitant shrinkage in the machine direction. The films may comprise crystal polystyrene, high impact polystyrene, and/or elastomers. A method of manufacture is disclosed which includes a post-extrusion temperature conditioning step.

1 - 12 . (canceled)  
   
   
       13 . A packaged good comprising a consumable item and a heat treated film wrapped around at least a portion of the consumable item, which heat treated film is obtained by exposing to heat a shrink film comprised of a polystyrene polymer blend which exhibits shrinkage in the length direction and controlled growth in the cross direction upon exposure to heat.  
   
   
       14 . The packaged good of  claim 13  in which the consumable item includes batteries, cans, bottles, disposable lighters, pens and decorative items.  
   
   
       15 . The packaged good of  claim 13  in which the consumable item is a battery.  
   
   
       16 . The packaged good of  claim 13  in which the heat treated film forms a perforated or non-perforated neck band around the consumable item.  
   
   
       17 . The packaged good of  claim 13  in which the heat treated film is clear, matte, translucent, or opaque.  
   
   
       18 . The packaged good of  claim 13  in which the heat treated film includes a packaging label.  
   
   
       19 . The packaged good of  claim 18  in which the packaging label is printed onto the film.  
   
   
       20 .- 41 . (canceled)