A STRENGTH ORIENTED THERMOPLASTIC FILM AND A PROCESS FOR MAKING THE SAME

摘要

: The present invention relates to a strength- oriented thermoplastic film comprising a filled resin including at least one copolyner of ethylene with at least one c4-c8-olefin monomer,and at least one filler,wherein said at least one filler comprises from 40 to 65 % by weight of said filled resin material of calcium carbonate includes a plurality of particles having a fatty acid coating;and wherein said film has a water vapor transmission rate,measured according to the astm standard as described in the description of from 300 to4,50 G/M2/24 hours;wherein said film has a critical break elongation 90º to the direction of orientation of greater than 150%