| abstract |
A polypropylene polymer film having excellent handleability which, when processed at a temperature as high as 80-120°C, is free from troubles such as wrinkling, elongation, and tearing and which can be conveyed by any system in a drying step; and a pressure-sensitive adhesive film employing this film as a substrate. The polypropylene polymer film is characterized by having a tensile modulus as determined in a 23°C atmosphere of 300-1,000 MPa and a tensile modulus as determined in a 120°C atmosphere of 60-120 MPa. |