{TAIL ~ A blown or cast film}, or a sheet comprising {HEAD ~ the polymer} 1, 3, 4, 6 or 7 
{ TAIL ~ A blown or cast film } , or a sheet comprising { HEAD ~ the polymer } 1 , 3 , 4 , 6 or 7
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH