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