Breathable films and method of making the same

A method for producing a breathable film comprising:

• cast extruding a polymeric composition which comprises from greater than 0 wt. % to 60 wt. % of a linear low density polyethylene which exhibits each of the following properties:
• a CEF fraction from 70° C. to 90° C. of equal to or greater than 80% of the total CEF fractions;
• a melt index (I2) measured according to ASTM D 1238 at 190° C., of greater than or equal to 2.0 g/10 min and less than or equal to 5.0 g/10 min;
• and
• a melt flow ratio (I10/I2) of less than or equal to 6.7 to produce a cast extruded film layer;
• and
• machine direction orienting the cast extruded film layer.

A method for producing a breathable film comprising:

• blow extruding a polymeric composition which comprises from greater than 0 wt. % to 60 wt. % of a linear low density polyethylene which exhibits each of the following properties:
• a CEF fraction from 70° C. to 90° C. of greater than or equal to 80% of the total CEF fractions;
• a melt index (I2) measured according to ASTM D 1238 at 190° C., of greater than or equal to 2.0 g/10 min and less than or equal to 5.0 g/10 min;
• and
• a melt flow ratio (I10/I2) of less than or equal to 6.7 to produce a blown film layer;
• and
• machine direction orienting the blown film layer.