Patent ID: 6903162

Claim:
A process for preparing a thin film on a high stalk extrusion line, said process comprising: (a) extruding a blend through an annular die to form a molten material tube, said blend comprising: (i) a linear low density polyethylene (LLDPE) which has a density within the range of about 0.90 to about 0.93 g/cc and an MI 2 within the range of about 0.5 to about 50 dg/min; and (ii) a high molecular weight high density polyethylene (HMW-HDPE) which has a density within the range of about 0.95 to about 0.97 g/cc and an MI 2 within the range of about 0.01 to about 0.5 dg/min; in a weight ratio of (i)/(ii) greater than or equal to 50/50; and (b) pulling the molten material tube around a flexible internal orientation device (FIOD) to form the film; wherein the film has a thickness of 0.5 mil or less.