| abstract |
Provided is a surface protective film that is hardly peeled off from an adherend even if it is stored outdoors in winter and exposed to low temperatures after being attached to the adherend. A surface protective film in which a pressure-sensitive adhesive layer comprising a rubber-based resin component and a tackifying resin is laminated on a polyolefin-based substrate, wherein the rubber-based resin component includes a styrene-based polymer block (A) and an olefin. Block copolymer with a polymer block (B), block copolymer of a styrene polymer block (A) with a random copolymer block (B ') of styrene and olefin, and / or hydrogenation thereof It is a styrene elastomer having a main skeleton, and the shear storage elastic modulus at a frequency of 10 Hz of the pressure-sensitive adhesive layer is 3 × 10 7 Pa or less at −30 ° C., and the shear storage elastic modulus is 5 × 10 4 at 23 ° C. A surface protective film in a range of ˜5 × 10 6 Pa. [Selection figure] None |