| abstract |
(57) [Summary] [Object] To provide a propylene-based copolymer composition capable of producing a film excellent in low-temperature heat-sealing property and blocking resistance. [Structure] A propylene homopolymer having a molecular weight distribution (Mw / Mn) of 3 or less, an average elution temperature of 40 to 100 ° C., and an elution dispersity σ value of 10 or less, or propylene and ethylene, or α having 4 to 20 carbon atoms. A copolymer of 1 to 70% by weight of a copolymer (A) with an olefin and propylene and ethylene or an α-olefin having 4 to 20 carbon atoms in a molecular weight distribution (Mw / Mn) range of 3.5 to 10. Polymer (B) 30- 99% by weight. |