| abstract |
Provided is a stretchable porous film having excellent stretchability and excellent air permeability. An article comprising the stretchable porous film is also provided. The stretchable porous film of the present invention is a stretchable porous film having voids on its surface, wherein: its air permeability measured using a Wangyan type air permeability meter is less than 99,999 sec/100cc; In the elongated state, the air permeability measured by the Wangyan type air permeability meter is less than 60,000sec/100cc in the elongation direction; and the stretchable porous film has a hysteresis test. Pulling at a pulling speed of 50 mm/min until the chuck distance is 60 mm, holding for 1 minute, and then releasing the chuck distance during pulling, the residual strain is 10 mm or less in the pulling direction. |