US Patent 10487199 Activated films having low sound pressure levels

A film comprising from about 20 wt. % to about 85 wt. % of a polyolefin component and from about 20 wt. % to about 45 wt. % of a particle component; wherein the film has a basis weight of from about 5 gsm to about 25 gsm; wherein the film is activated and subjected to an engineering strain of greater than about 20%; wherein the film has a predicted sound pressure level over the frequency octave range of 2000 Hz-6300 Hz of less than about 43 dB.