POLYETHYLENE FILM HAVING IMPROVED MECHANICAL AND BARRIER PROPERTIES AND METHOD OF MAKING SAME.

摘要

A polyethylene film comprising a polymer composition having the characteristics of a total energy dart drop, measured in accordance with ASTM D4272, of greater than a bout 0.45 ft.lbf, a dart drop impact strength, measured in accordance with ASTM D1709 Method A, of greater than about 135 g, and a moisture vapor transmission rate, measured in accordance with ASTM F1249 at 100 DEG F. and 90% relative. humnidity, of less tha about 0.85 g-mil/100 square inch/24 hr, wherein said ASTM tests are performed on a test specimen having a 0.8 mil thickness.