Abstract: An object of the present invention is to provide a propylene polymer composition capable of forming a heat seal layer that can be heat-sealed at a relatively low temperature and suppressing blocking in a film including the heat seal layer. A propylene polymer composition contains the following propylene polymer (1) and the following propylene-?-olefin copolymer (2), in which a content of the propylene polymer (1) is 2% by mass to 25% by mass with respect to 100% by mass of a total content of the propylene polymer (1) and the propylene-?-olefin copolymer (2), and the propylene polymer composition satisfies the following requirement (3): Propylene polymer (1): a polymer containing 94% by mass or more of a monomer unit derived from propylene. Propylene-?-olefin copolymer (2): a copolymer containing 60% by mass or more and less than 94% by mass of a monomer unit derived from propylene and more than 6% by mass and 40% by mass or less of a monomer unit derived from an ?-olefin having 4 to 12 carbon atoms.

Abstract: An object of the present invention is to provide a propylene polymer composition capable of forming a heat seal layer that can be heat-sealed at a relatively low temperature and suppressing blocking in a film including the heat seal layer. A propylene polymer composition contains the following propylene polymer (1) and the following propylene-?-olefin copolymer (2), in which a content of the propylene polymer (1) is 2% by mass to 25% by mass with respect to 100% by mass of a total content of the propylene polymer (1) and the propylene-?-olefin copolymer (2), and the propylene polymer composition satisfies the following requirement (3): Propylene polymer (1): a polymer containing 94% by mass or more of a monomer unit derived from propylene. Propylene-?-olefin copolymer (2): a copolymer containing 60% by mass or more and less than 94% by mass of a monomer unit derived from propylene and more than 6% by mass and 40% by mass or less of a monomer unit derived from an ?-olefin having 4 to 12 carbon atoms.