| abstract |
PROBLEM TO BE SOLVED: To provide a film which is excellent in rigidity, low-temperature impact resistance, blocking resistance and heat seal strength, has a small decrease in heat seal strength even after heat treatment, and is suitable for retort food packaging. To provide a propylene-based polymer composition suitable for obtaining. SOLUTION: Propylene polymer component (A), propylene / α-olefin random copolymer component (B) And an ethylene / α-olefin random copolymer component (C) having an MFR (230 ° C.) of 0.01 The composition is more than 2 (g / 10 minutes). Here, (A) / (B) is 85/15 to 97/3 (weight ratio). And the intrinsic viscosity [η] of (B) is 2.5 to 4.5 (d l / g) and the propylene content is 65 to 80% by weight, and the density of (C) is 0.865 to 0.910 (g / c m 3 ) and accounts for 5 to 25% by weight of the composition. |